Merge branch 'next/drivers' into next/late

Merge in a few missing patches from the pull request (my copy of the
branch was behind the staged version in linux-next).

* next/drivers:
  memory: pl353: Add driver for arm pl353 static memory controller
  dt-bindings: memory: Add pl353 smc controller devicetree binding information
  firmware: qcom: scm: fix compilation error when disabled
Signed-off-by: Olof Johansson <olof@lixom.net>

Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt

@@ -58,19 +58,11 @@ This binding for the SCU power domain providers uses the generic power
 domain binding[2].
 
 Required properties:
-- compatible:		Should be "fsl,scu-pd".
-- #address-cells:	Should be 1.
-- #size-cells:		Should be 0.
-
-Required properties for power domain sub nodes:
-- #power-domain-cells:	Must be 0.
-
-Optional Properties:
-- reg:			Resource ID of this power domain.
-			No exist means uncontrollable by user.
+- compatible:		Should be "fsl,imx8qxp-scu-pd".
+- #power-domain-cells:	Must be 1. Contains the Resource ID used by
+			SCU commands.
 			See detailed Resource ID list from:
-			include/dt-bindings/power/imx-rsrc.h
-- power-domains:	phandle pointing to the parent power domain.
+			include/dt-bindings/firmware/imx/rsrc.h
 
 Clock bindings based on SCU Message Protocol
 ------------------------------------------------------------
@@ -152,22 +144,9 @@ firmware {
 			...
 		};
 
-		imx8qx-pm {
-			compatible = "fsl,scu-pd";
-			#address-cells = <1>;
-			#size-cells = <0>;
-
-			pd_dma: dma-power-domain {
-				#power-domain-cells = <0>;
-
-				pd_dma_lpuart0: dma-lpuart0@57 {
-					reg = <SC_R_UART_0>;
-					#power-domain-cells = <0>;
-					power-domains = <&pd_dma>;
-				};
-				...
-			};
-			...
+		pd: imx8qx-pd {
+			compatible = "fsl,imx8qxp-scu-pd";
+			#power-domain-cells = <1>;
 		};
 	};
 };
@@ -179,5 +158,5 @@ serial@5a060000 {
 	clocks = <&clk IMX8QXP_UART0_CLK>,
 		 <&clk IMX8QXP_UART0_IPG_CLK>;
 	clock-names = "per", "ipg";
-	power-domains = <&pd_dma_lpuart0>;
+	power-domains = <&pd IMX_SC_R_UART_0>;
 };

Documentation/devicetree/bindings/bus/ti-sysc.txt

@@ -35,6 +35,7 @@ Required standard properties:
 		"ti,sysc-omap3-sham"
 		"ti,sysc-omap-aes"
 		"ti,sysc-mcasp"
+		"ti,sysc-dra7-mcasp"
 		"ti,sysc-usb-host-fs"
 		"ti,sysc-dra7-mcan"
 

Documentation/devicetree/bindings/memory-controllers/pl353-smc.txt

+Device tree bindings for ARM PL353 static memory controller
+
+PL353 static memory controller supports two kinds of memory
+interfaces.i.e NAND and SRAM/NOR interfaces.
+The actual devices are instantiated from the child nodes of pl353 smc node.
+
+Required properties:
+- compatible		: Should be "arm,pl353-smc-r2p1", "arm,primecell".
+- reg			: Controller registers map and length.
+- clock-names		: List of input clock names - "memclk", "apb_pclk"
+			  (See clock bindings for details).
+- clocks		: Clock phandles (see clock bindings for details).
+- address-cells		: Must be 2.
+- size-cells		: Must be 1.
+
+Child nodes:
+ For NAND the "arm,pl353-nand-r2p1" and for NOR the "cfi-flash" drivers are
+supported as child nodes.
+
+for NAND partition information please refer the below file
+Documentation/devicetree/bindings/mtd/partition.txt
+
+Example:
+	smcc: memory-controller@e000e000
+			compatible = "arm,pl353-smc-r2p1", "arm,primecell";
+			clock-names = "memclk", "apb_pclk";
+			clocks = <&clkc 11>, <&clkc 44>;
+			reg = <0xe000e000 0x1000>;
+			#address-cells = <2>;
+			#size-cells = <1>;
+			ranges = <0x0 0x0 0xe1000000 0x1000000 //Nand CS Region
+				  0x1 0x0 0xe2000000 0x2000000 //SRAM/NOR CS Region
+				  0x2 0x0 0xe4000000 0x2000000>; //SRAM/NOR CS Region
+			nand_0: flash@e1000000 {
+				compatible = "arm,pl353-nand-r2p1"
+				reg = <0 0 0x1000000>;
+				(...)
+			};
+			nor0: flash@e2000000 {
+				compatible = "cfi-flash";
+				reg = <1 0 0x2000000>;
+			};
+			nor1: flash@e4000000 {
+				compatible = "cfi-flash";
+				reg = <2 0 0x2000000>;
+			};
+	};

Documentation/devicetree/bindings/power/fsl,imx-gpcv2.txt

@@ -6,7 +6,9 @@ Control (PGC) for various power domains.
 
 Required properties:
 
-- compatible: Should be "fsl,imx7d-gpc"
+- compatible: Should be one of:
+	- "fsl,imx7d-gpc"
+	- "fsl,imx8mq-gpc"
 
 - reg: should be register base and length as documented in the
   datasheet
@@ -22,7 +24,8 @@ which, in turn, is expected to contain the following:
 Required properties:
 
 - reg: Power domain index. Valid values are defined in
-  include/dt-bindings/power/imx7-power.h
+  include/dt-bindings/power/imx7-power.h for fsl,imx7d-gpc and
+  include/dt-bindings/power/imx8m-power.h for fsl,imx8mq-gpc
 
 - #power-domain-cells: Should be 0
 

Documentation/devicetree/bindings/soc/amlogic/clk-measure.txt

+Amlogic Internal Clock Measurer
+===============================
+
+The Amlogic SoCs contains an IP to measure the internal clocks.
+The precision is multiple of MHz, useful to debug the clock states.
+
+Required properties:
+- compatible: Shall contain one of the following :
+			"amlogic,meson-gx-clk-measure" for GX SoCs
+			"amlogic,meson8-clk-measure" for Meson8 SoCs
+			"amlogic,meson8b-clk-measure" for Meson8b SoCs
+- reg: base address and size of the Clock Measurer register space.
+
+Example:
+	clock-measure@8758 {
+		compatible = "amlogic,meson-gx-clk-measure";
+		reg = <0x0 0x8758 0x0 0x10>;
+	};

Documentation/devicetree/bindings/soc/qcom/qcom,smd-rpm.txt

@@ -23,6 +23,7 @@ resources.
 		    "qcom,rpm-msm8916"
 		    "qcom,rpm-msm8974"
 		    "qcom,rpm-msm8998"
+		    "qcom,rpm-qcs404"
 
 - qcom,smd-channels:
 	Usage: required

Documentation/devicetree/bindings/soc/rockchip/power_domain.txt

@@ -7,7 +7,9 @@ Required properties for power domain controller:
 - compatible: Should be one of the following.
 	"rockchip,px30-power-controller" - for PX30 SoCs.
 	"rockchip,rk3036-power-controller" - for RK3036 SoCs.
+	"rockchip,rk3066-power-controller" - for RK3066 SoCs.
 	"rockchip,rk3128-power-controller" - for RK3128 SoCs.
+	"rockchip,rk3188-power-controller" - for RK3188 SoCs.
 	"rockchip,rk3228-power-controller" - for RK3228 SoCs.
 	"rockchip,rk3288-power-controller" - for RK3288 SoCs.
 	"rockchip,rk3328-power-controller" - for RK3328 SoCs.
@@ -23,7 +25,9 @@ Required properties for power domain sub nodes:
 - reg: index of the power domain, should use macros in:
 	"include/dt-bindings/power/px30-power.h" - for PX30 type power domain.
 	"include/dt-bindings/power/rk3036-power.h" - for RK3036 type power domain.
+	"include/dt-bindings/power/rk3066-power.h" - for RK3066 type power domain.
 	"include/dt-bindings/power/rk3128-power.h" - for RK3128 type power domain.
+	"include/dt-bindings/power/rk3188-power.h" - for RK3188 type power domain.
 	"include/dt-bindings/power/rk3228-power.h" - for RK3228 type power domain.
 	"include/dt-bindings/power/rk3288-power.h" - for RK3288 type power domain.
 	"include/dt-bindings/power/rk3328-power.h" - for RK3328 type power domain.

Documentation/devicetree/bindings/sram/sunxi-sram.txt

@@ -18,7 +18,9 @@ Required properties:
     - "allwinner,sun8i-h3-system-control"
     - "allwinner,sun50i-a64-sram-controller" (deprecated)
     - "allwinner,sun50i-a64-system-control"
+    - "allwinner,sun50i-h5-system-control"
     - "allwinner,sun50i-h6-system-control", "allwinner,sun50i-a64-system-control"
+    - "allwinner,suniv-f1c100s-system-control", "allwinner,sun4i-a10-system-control"
 - reg : sram controller register offset + length
 
 SRAM nodes
@@ -54,10 +56,17 @@ The valid sections compatible for H3 are:
 
 The valid sections compatible for A64 are:
     - allwinner,sun50i-a64-sram-c
+    - allwinner,sun50i-a64-sram-c1, allwinner,sun4i-a10-sram-c1
+
+The valid sections compatible for H5 are:
+    - allwinner,sun50i-h5-sram-c1, allwinner,sun4i-a10-sram-c1
 
 The valid sections compatible for H6 are:
     - allwinner,sun50i-h6-sram-c, allwinner,sun50i-a64-sram-c
 
+The valid sections compatible for F1C100s are:
+    - allwinner,suniv-f1c100s-sram-d, allwinner,sun4i-a10-sram-d
+
 Devices using SRAM sections
 ---------------------------
 

arch/arm/mach-omap2/omap_hwmod.c

@@ -2345,6 +2345,17 @@ static int __init _init_mpu_rt_base(struct omap_hwmod *oh, void *data,
 	return 0;
 }
 
+static void __init parse_module_flags(struct omap_hwmod *oh,
+				      struct device_node *np)
+{
+	if (of_find_property(np, "ti,no-reset-on-init", NULL))
+		oh->flags |= HWMOD_INIT_NO_RESET;
+	if (of_find_property(np, "ti,no-idle-on-init", NULL))
+		oh->flags |= HWMOD_INIT_NO_IDLE;
+	if (of_find_property(np, "ti,no-idle", NULL))
+		oh->flags |= HWMOD_NO_IDLE;
+}
+
 /**
  * _init - initialize internal data for the hwmod @oh
  * @oh: struct omap_hwmod *
@@ -2392,12 +2403,12 @@ static int __init _init(struct omap_hwmod *oh, void *data)
 	}
 
 	if (np) {
-		if (of_find_property(np, "ti,no-reset-on-init", NULL))
-			oh->flags |= HWMOD_INIT_NO_RESET;
-		if (of_find_property(np, "ti,no-idle-on-init", NULL))
-			oh->flags |= HWMOD_INIT_NO_IDLE;
-		if (of_find_property(np, "ti,no-idle", NULL))
-			oh->flags |= HWMOD_NO_IDLE;
+		struct device_node *child;
+
+		parse_module_flags(oh, np);
+		child = of_get_next_child(np, NULL);
+		if (child)
+			parse_module_flags(oh, child);
 	}
 
 	oh->_state = _HWMOD_STATE_INITIALIZED;

drivers/bus/brcmstb_gisb.c

@@ -150,8 +150,7 @@ static ssize_t gisb_arb_get_timeout(struct device *dev,
 				    struct device_attribute *attr,
 				    char *buf)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct brcmstb_gisb_arb_device *gdev = platform_get_drvdata(pdev);
+	struct brcmstb_gisb_arb_device *gdev = dev_get_drvdata(dev);
 	u32 timeout;
 
 	mutex_lock(&gdev->lock);
@@ -165,8 +164,7 @@ static ssize_t gisb_arb_set_timeout(struct device *dev,
 				    struct device_attribute *attr,
 				    const char *buf, size_t count)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct brcmstb_gisb_arb_device *gdev = platform_get_drvdata(pdev);
+	struct brcmstb_gisb_arb_device *gdev = dev_get_drvdata(dev);
 	int val, ret;
 
 	ret = kstrtoint(buf, 10, &val);
@@ -418,8 +416,7 @@ static int __init brcmstb_gisb_arb_probe(struct platform_device *pdev)
 #ifdef CONFIG_PM_SLEEP
 static int brcmstb_gisb_arb_suspend(struct device *dev)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct brcmstb_gisb_arb_device *gdev = platform_get_drvdata(pdev);
+	struct brcmstb_gisb_arb_device *gdev = dev_get_drvdata(dev);
 
 	gdev->saved_timeout = gisb_read(gdev, ARB_TIMER);
 
@@ -431,8 +428,7 @@ static int brcmstb_gisb_arb_suspend(struct device *dev)
  */
 static int brcmstb_gisb_arb_resume_noirq(struct device *dev)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct brcmstb_gisb_arb_device *gdev = platform_get_drvdata(pdev);
+	struct brcmstb_gisb_arb_device *gdev = dev_get_drvdata(dev);
 
 	gisb_write(gdev, gdev->saved_timeout, ARB_TIMER);
 

drivers/bus/ti-sysc.c

@@ -91,6 +91,9 @@ struct sysc {
 	struct delayed_work idle_work;
 };
 
+static void sysc_parse_dts_quirks(struct sysc *ddata, struct device_node *np,
+				  bool is_child);
+
 void sysc_write(struct sysc *ddata, int offset, u32 value)
 {
 	writel_relaxed(value, ddata->module_va + offset);
@@ -214,8 +217,13 @@ static int sysc_get_clocks(struct sysc *ddata)
 	if (!ddata->clocks)
 		return -ENOMEM;
 
-	for (i = 0; i < ddata->nr_clocks; i++) {
-		error = sysc_get_one_clock(ddata, ddata->clock_roles[i]);
+	for (i = 0; i < SYSC_MAX_CLOCKS; i++) {
+		const char *name = ddata->clock_roles[i];
+
+		if (!name)
+			continue;
+
+		error = sysc_get_one_clock(ddata, name);
 		if (error && error != -ENOENT)
 			return error;
 	}
@@ -374,6 +382,7 @@ static int sysc_check_one_child(struct sysc *ddata,
 		dev_warn(ddata->dev, "really a child ti,hwmods property?");
 
 	sysc_check_quirk_stdout(ddata, np);
+	sysc_parse_dts_quirks(ddata, np, true);
 
 	return 0;
 }
@@ -815,6 +824,7 @@ static const struct sysc_revision_quirk sysc_revision_quirks[] = {
 	SYSC_QUIRK("ocp2scp", 0, 0, 0x10, 0x14, 0x50060005, 0xfffffff0, 0),
 	SYSC_QUIRK("ocp2scp", 0, 0, -1, -1, 0x50060007, 0xffffffff, 0),
 	SYSC_QUIRK("padconf", 0, 0, 0x10, -1, 0x4fff0800, 0xffffffff, 0),
+	SYSC_QUIRK("padconf", 0, 0, -1, -1, 0x40001100, 0xffffffff, 0),
 	SYSC_QUIRK("prcm", 0, 0, -1, -1, 0x40000100, 0xffffffff, 0),
 	SYSC_QUIRK("prcm", 0, 0, -1, -1, 0x00004102, 0xffffffff, 0),
 	SYSC_QUIRK("prcm", 0, 0, -1, -1, 0x40000400, 0xffffffff, 0),
@@ -833,7 +843,9 @@ static const struct sysc_revision_quirk sysc_revision_quirks[] = {
 	SYSC_QUIRK("rtc", 0, 0x74, 0x78, -1, 0x4eb01908, 0xffff00f0, 0),
 	SYSC_QUIRK("timer32k", 0, 0, 0x4, -1, 0x00000060, 0xffffffff, 0),
 	SYSC_QUIRK("usbhstll", 0, 0, 0x10, 0x14, 0x00000004, 0xffffffff, 0),
+	SYSC_QUIRK("usbhstll", 0, 0, 0x10, 0x14, 0x00000008, 0xffffffff, 0),
 	SYSC_QUIRK("usb_host_hs", 0, 0, 0x10, 0x14, 0x50700100, 0xffffffff, 0),
+	SYSC_QUIRK("usb_host_hs", 0, 0, 0x10, -1, 0x50700101, 0xffffffff, 0),
 	SYSC_QUIRK("usb_otg_hs", 0, 0x400, 0x404, 0x408, 0x00000050,
 		   0xffffffff, 0),
 	SYSC_QUIRK("wdt", 0, 0, 0x10, 0x14, 0x502a0500, 0xfffff0f0, 0),
@@ -1271,23 +1283,37 @@ static const struct sysc_dts_quirk sysc_dts_quirks[] = {
 	  .mask = SYSC_QUIRK_NO_RESET_ON_INIT, },
 };
 
-static int sysc_init_dts_quirks(struct sysc *ddata)
+static void sysc_parse_dts_quirks(struct sysc *ddata, struct device_node *np,
+				  bool is_child)
 {
-	struct device_node *np = ddata->dev->of_node;
 	const struct property *prop;
-	int i, len, error;
-	u32 val;
-
-	ddata->legacy_mode = of_get_property(np, "ti,hwmods", NULL);
+	int i, len;
 
 	for (i = 0; i < ARRAY_SIZE(sysc_dts_quirks); i++) {
-		prop = of_get_property(np, sysc_dts_quirks[i].name, &len);
+		const char *name = sysc_dts_quirks[i].name;
+
+		prop = of_get_property(np, name, &len);
 		if (!prop)
 			continue;
 
 		ddata->cfg.quirks |= sysc_dts_quirks[i].mask;
+		if (is_child) {
+			dev_warn(ddata->dev,
+				 "dts flag should be at module level for %s\n",
+				 name);
+		}
 	}
+}
 
+static int sysc_init_dts_quirks(struct sysc *ddata)
+{
+	struct device_node *np = ddata->dev->of_node;
+	int error;
+	u32 val;
+
+	ddata->legacy_mode = of_get_property(np, "ti,hwmods", NULL);
+
+	sysc_parse_dts_quirks(ddata, np, false);
 	error = of_property_read_u32(np, "ti,sysc-delay-us", &val);
 	if (!error) {
 		if (val > 255) {
@@ -1498,6 +1524,16 @@ static const struct sysc_regbits sysc_regbits_omap4_mcasp = {
 static const struct sysc_capabilities sysc_omap4_mcasp = {
 	.type = TI_SYSC_OMAP4_MCASP,
 	.regbits = &sysc_regbits_omap4_mcasp,
+	.mod_quirks = SYSC_QUIRK_OPT_CLKS_NEEDED,
+};
+
+/*
+ * McASP found on dra7 and later
+ */
+static const struct sysc_capabilities sysc_dra7_mcasp = {
+	.type = TI_SYSC_OMAP4_SIMPLE,
+	.regbits = &sysc_regbits_omap4_simple,
+	.mod_quirks = SYSC_QUIRK_OPT_CLKS_NEEDED,
 };
 
 /*
@@ -1726,6 +1762,7 @@ static const struct of_device_id sysc_match[] = {
 	{ .compatible = "ti,sysc-omap3-sham", .data = &sysc_omap3_sham, },
 	{ .compatible = "ti,sysc-omap-aes", .data = &sysc_omap3_aes, },
 	{ .compatible = "ti,sysc-mcasp", .data = &sysc_omap4_mcasp, },
+	{ .compatible = "ti,sysc-dra7-mcasp", .data = &sysc_dra7_mcasp, },
 	{ .compatible = "ti,sysc-usb-host-fs",
 	  .data = &sysc_omap4_usb_host_fs, },
 	{ .compatible = "ti,sysc-dra7-mcan", .data = &sysc_dra7_mcan, },

drivers/dma/pxa_dma.c

@@ -179,7 +179,7 @@ static unsigned int pxad_drcmr(unsigned int line)
 	return 0x1000 + line * 4;
 }
 
-bool pxad_filter_fn(struct dma_chan *chan, void *param);
+static bool pxad_filter_fn(struct dma_chan *chan, void *param);
 
 /*
  * Debug fs
@@ -1500,7 +1500,7 @@ static struct platform_driver pxad_driver = {
 	.remove		= pxad_remove,
 };
 
-bool pxad_filter_fn(struct dma_chan *chan, void *param)
+static bool pxad_filter_fn(struct dma_chan *chan, void *param)
 {
 	struct pxad_chan *c = to_pxad_chan(chan);
 	struct pxad_param *p = param;
@@ -1513,7 +1513,6 @@ bool pxad_filter_fn(struct dma_chan *chan, void *param)
 
 	return true;
 }
-EXPORT_SYMBOL_GPL(pxad_filter_fn);
 
 module_platform_driver(pxad_driver);
 

drivers/firmware/imx/Kconfig

@@ -9,3 +9,9 @@ config IMX_SCU
 
 	  This driver manages the IPC interface between host CPU and the
 	  SCU firmware running on M4.
+
+config IMX_SCU_PD
+	bool "IMX SCU Power Domain driver"
+	depends on IMX_SCU
+	help
+	  The System Controller Firmware (SCFW) based power domain driver.

drivers/firmware/imx/Makefile

 # SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_IMX_SCU)		+= imx-scu.o misc.o
+obj-$(CONFIG_IMX_SCU_PD)	+= scu-pd.o

drivers/firmware/imx/scu-pd.c

+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2016 Freescale Semiconductor, Inc.
+ * Copyright 2017-2018 NXP
+ *	Dong Aisheng <aisheng.dong@nxp.com>
+ *
+ * Implementation of the SCU based Power Domains
+ *
+ * NOTE: a better implementation suggested by Ulf Hansson is using a
+ * single global power domain and implement the ->attach|detach_dev()
+ * callback for the genpd and use the regular of_genpd_add_provider_simple().
+ * From within the ->attach_dev(), we could get the OF node for
+ * the device that is being attached and then parse the power-domain
+ * cell containing the "resource id" and store that in the per device
+ * struct generic_pm_domain_data (we have void pointer there for
+ * storing these kind of things).
+ *
+ * Additionally, we need to implement the ->stop() and ->start()
+ * callbacks of genpd, which is where you "power on/off" devices,
+ * rather than using the above ->power_on|off() callbacks.
+ *
+ * However, there're two known issues:
+ * 1. The ->attach_dev() of power domain infrastructure still does
+ *    not support multi domains case as the struct device *dev passed
+ *    in is a virtual PD device, it does not help for parsing the real
+ *    device resource id from device tree, so it's unware of which
+ *    real sub power domain of device should be attached.
+ *
+ *    The framework needs some proper extension to support multi power
+ *    domain cases.
+ *
+ * 2. It also breaks most of current drivers as the driver probe sequence
+ *    behavior changed if removing ->power_on|off() callback and use
+ *    ->start() and ->stop() instead. genpd_dev_pm_attach will only power
+ *    up the domain and attach device, but will not call .start() which
+ *    relies on device runtime pm. That means the device power is still
+ *    not up before running driver probe function. For SCU enabled
+ *    platforms, all device drivers accessing registers/clock without power
+ *    domain enabled will trigger a HW access error. That means we need fix
+ *    most drivers probe sequence with proper runtime pm.
+ *
+ * In summary, we need fix above two issue before being able to switch to
+ * the "single global power domain" way.
+ *
+ */
+
+#include <dt-bindings/firmware/imx/rsrc.h>
+#include <linux/firmware/imx/sci.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/of_platform.h>
+#include <linux/platform_device.h>
+#include <linux/pm.h>
+#include <linux/pm_domain.h>
+#include <linux/slab.h>
+
+/* SCU Power Mode Protocol definition */
+struct imx_sc_msg_req_set_resource_power_mode {
+	struct imx_sc_rpc_msg hdr;
+	u16 resource;
+	u8 mode;
+} __packed;
+
+#define IMX_SCU_PD_NAME_SIZE 20
+struct imx_sc_pm_domain {
+	struct generic_pm_domain pd;
+	char name[IMX_SCU_PD_NAME_SIZE];
+	u32 rsrc;
+};
+
+struct imx_sc_pd_range {
+	char *name;
+	u32 rsrc;
+	u8 num;
+	bool postfix;
+};
+
+struct imx_sc_pd_soc {
+	const struct imx_sc_pd_range *pd_ranges;
+	u8 num_ranges;
+};
+
+static const struct imx_sc_pd_range imx8qxp_scu_pd_ranges[] = {
+	/* LSIO SS */
+	{ "lsio-pwm", IMX_SC_R_PWM_0, 8, 1 },
+	{ "lsio-gpio", IMX_SC_R_GPIO_0, 8, 1 },
+	{ "lsio-gpt", IMX_SC_R_GPT_0, 5, 1 },
+	{ "lsio-kpp", IMX_SC_R_KPP, 1, 0 },
+	{ "lsio-fspi", IMX_SC_R_FSPI_0, 2, 1 },
+	{ "lsio-mu", IMX_SC_R_MU_0A, 14, 1 },
+
+	/* CONN SS */
+	{ "con-usb", IMX_SC_R_USB_0, 2, 1 },
+	{ "con-usb0phy", IMX_SC_R_USB_0_PHY, 1, 0 },
+	{ "con-usb2", IMX_SC_R_USB_2, 1, 0 },
+	{ "con-usb2phy", IMX_SC_R_USB_2_PHY, 1, 0 },
+	{ "con-sdhc", IMX_SC_R_SDHC_0, 3, 1 },
+	{ "con-enet", IMX_SC_R_ENET_0, 2, 1 },
+	{ "con-nand", IMX_SC_R_NAND, 1, 0 },
+	{ "con-mlb", IMX_SC_R_MLB_0, 1, 1 },
+
+	/* Audio DMA SS */
+	{ "adma-audio-pll0", IMX_SC_R_AUDIO_PLL_0, 1, 0 },
+	{ "adma-audio-pll1", IMX_SC_R_AUDIO_PLL_1, 1, 0 },
+	{ "adma-audio-clk-0", IMX_SC_R_AUDIO_CLK_0, 1, 0 },
+	{ "adma-dma0-ch", IMX_SC_R_DMA_0_CH0, 16, 1 },
+	{ "adma-dma1-ch", IMX_SC_R_DMA_1_CH0, 16, 1 },
+	{ "adma-dma2-ch", IMX_SC_R_DMA_2_CH0, 5, 1 },
+	{ "adma-asrc0", IMX_SC_R_ASRC_0, 1, 0 },
+	{ "adma-asrc1", IMX_SC_R_ASRC_1, 1, 0 },
+	{ "adma-esai0", IMX_SC_R_ESAI_0, 1, 0 },
+	{ "adma-spdif0", IMX_SC_R_SPDIF_0, 1, 0 },
+	{ "adma-sai", IMX_SC_R_SAI_0, 3, 1 },
+	{ "adma-amix", IMX_SC_R_AMIX, 1, 0 },
+	{ "adma-mqs0", IMX_SC_R_MQS_0, 1, 0 },
+	{ "adma-dsp", IMX_SC_R_DSP, 1, 0 },
+	{ "adma-dsp-ram", IMX_SC_R_DSP_RAM, 1, 0 },
+	{ "adma-can", IMX_SC_R_CAN_0, 3, 1 },
+	{ "adma-ftm", IMX_SC_R_FTM_0, 2, 1 },
+	{ "adma-lpi2c", IMX_SC_R_I2C_0, 4, 1 },
+	{ "adma-adc", IMX_SC_R_ADC_0, 1, 1 },
+	{ "adma-lcd", IMX_SC_R_LCD_0, 1, 1 },
+	{ "adma-lcd0-pwm", IMX_SC_R_LCD_0_PWM_0, 1, 1 },
+	{ "adma-lpuart", IMX_SC_R_UART_0, 4, 1 },
+	{ "adma-lpspi", IMX_SC_R_SPI_0, 4, 1 },
+
+	/* VPU SS  */
+	{ "vpu", IMX_SC_R_VPU, 1, 0 },
+	{ "vpu-pid", IMX_SC_R_VPU_PID0, 8, 1 },
+	{ "vpu-dec0", IMX_SC_R_VPU_DEC_0, 1, 0 },
+	{ "vpu-enc0", IMX_SC_R_VPU_ENC_0, 1, 0 },
+
+	/* GPU SS */
+	{ "gpu0-pid", IMX_SC_R_GPU_0_PID0, 4, 1 },
+
+	/* HSIO SS */
+	{ "hsio-pcie-b", IMX_SC_R_PCIE_B, 1, 0 },
+	{ "hsio-serdes-1", IMX_SC_R_SERDES_1, 1, 0 },
+	{ "hsio-gpio", IMX_SC_R_HSIO_GPIO, 1, 0 },
+
+	/* MIPI/LVDS SS */
+	{ "mipi0", IMX_SC_R_MIPI_0, 1, 0 },
+	{ "mipi0-pwm0", IMX_SC_R_MIPI_0_PWM_0, 1, 0 },
+	{ "mipi0-i2c", IMX_SC_R_MIPI_0_I2C_0, 2, 1 },
+	{ "lvds0", IMX_SC_R_LVDS_0, 1, 0 },
+
+	/* DC SS */
+	{ "dc0", IMX_SC_R_DC_0, 1, 0 },
+	{ "dc0-pll", IMX_SC_R_DC_0_PLL_0, 2, 1 },
+};
+
+static const struct imx_sc_pd_soc imx8qxp_scu_pd = {
+	.pd_ranges = imx8qxp_scu_pd_ranges,
+	.num_ranges = ARRAY_SIZE(imx8qxp_scu_pd_ranges),
+};
+
+static struct imx_sc_ipc *pm_ipc_handle;
+
+static inline struct imx_sc_pm_domain *
+to_imx_sc_pd(struct generic_pm_domain *genpd)
+{
+	return container_of(genpd, struct imx_sc_pm_domain, pd);
+}
+
+static int imx_sc_pd_power(struct generic_pm_domain *domain, bool power_on)
+{
+	struct imx_sc_msg_req_set_resource_power_mode msg;
+	struct imx_sc_rpc_msg *hdr = &msg.hdr;
+	struct imx_sc_pm_domain *pd;
+	int ret;
+
+	pd = to_imx_sc_pd(domain);
+
+	hdr->ver = IMX_SC_RPC_VERSION;
+	hdr->svc = IMX_SC_RPC_SVC_PM;
+	hdr->func = IMX_SC_PM_FUNC_SET_RESOURCE_POWER_MODE;
+	hdr->size = 2;
+
+	msg.resource = pd->rsrc;
+	msg.mode = power_on ? IMX_SC_PM_PW_MODE_ON : IMX_SC_PM_PW_MODE_LP;
+
+	ret = imx_scu_call_rpc(pm_ipc_handle, &msg, true);
+	if (ret)
+		dev_err(&domain->dev, "failed to power %s resource %d ret %d\n",
+			power_on ? "up" : "off", pd->rsrc, ret);
+
+	return ret;
+}
+
+static int imx_sc_pd_power_on(struct generic_pm_domain *domain)
+{
+	return imx_sc_pd_power(domain, true);
+}
+
+static int imx_sc_pd_power_off(struct generic_pm_domain *domain)
+{
+	return imx_sc_pd_power(domain, false);
+}
+
+static struct generic_pm_domain *imx_scu_pd_xlate(struct of_phandle_args *spec,
+						  void *data)
+{
+	struct generic_pm_domain *domain = ERR_PTR(-ENOENT);
+	struct genpd_onecell_data *pd_data = data;
+	unsigned int i;
+
+	for (i = 0; i < pd_data->num_domains; i++) {
+		struct imx_sc_pm_domain *sc_pd;
+
+		sc_pd = to_imx_sc_pd(pd_data->domains[i]);
+		if (sc_pd->rsrc == spec->args[0]) {
+			domain = &sc_pd->pd;
+			break;
+		}
+	}
+
+	return domain;
+}
+
+static struct imx_sc_pm_domain *
+imx_scu_add_pm_domain(struct device *dev, int idx,
+		      const struct imx_sc_pd_range *pd_ranges)
+{
+	struct imx_sc_pm_domain *sc_pd;
+	int ret;
+
+	sc_pd = devm_kzalloc(dev, sizeof(*sc_pd), GFP_KERNEL);
+	if (!sc_pd)
+		return ERR_PTR(-ENOMEM);
+
+	sc_pd->rsrc = pd_ranges->rsrc + idx;
+	sc_pd->pd.power_off = imx_sc_pd_power_off;
+	sc_pd->pd.power_on = imx_sc_pd_power_on;
+
+	if (pd_ranges->postfix)
+		snprintf(sc_pd->name, sizeof(sc_pd->name),
+			 "%s%i", pd_ranges->name, idx);
+	else
+		snprintf(sc_pd->name, sizeof(sc_pd->name),
+			 "%s", pd_ranges->name);
+
+	sc_pd->pd.name = sc_pd->name;
+
+	if (sc_pd->rsrc >= IMX_SC_R_LAST) {
+		dev_warn(dev, "invalid pd %s rsrc id %d found",
+			 sc_pd->name, sc_pd->rsrc);
+
+		devm_kfree(dev, sc_pd);
+		return NULL;
+	}
+
+	ret = pm_genpd_init(&sc_pd->pd, NULL, true);
+	if (ret) {
+		dev_warn(dev, "failed to init pd %s rsrc id %d",
+			 sc_pd->name, sc_pd->rsrc);
+		devm_kfree(dev, sc_pd);
+		return NULL;
+	}
+
+	return sc_pd;
+}
+
+static int imx_scu_init_pm_domains(struct device *dev,
+				    const struct imx_sc_pd_soc *pd_soc)
+{
+	const struct imx_sc_pd_range *pd_ranges = pd_soc->pd_ranges;
+	struct generic_pm_domain **domains;
+	struct genpd_onecell_data *pd_data;
+	struct imx_sc_pm_domain *sc_pd;
+	u32 count = 0;
+	int i, j;
+
+	for (i = 0; i < pd_soc->num_ranges; i++)
+		count += pd_ranges[i].num;
+
+	domains = devm_kcalloc(dev, count, sizeof(*domains), GFP_KERNEL);
+	if (!domains)
+		return -ENOMEM;
+
+	pd_data = devm_kzalloc(dev, sizeof(*pd_data), GFP_KERNEL);
+	if (!pd_data)
+		return -ENOMEM;
+
+	count = 0;
+	for (i = 0; i < pd_soc->num_ranges; i++) {
+		for (j = 0; j < pd_ranges[i].num; j++) {
+			sc_pd = imx_scu_add_pm_domain(dev, j, &pd_ranges[i]);
+			if (IS_ERR_OR_NULL(sc_pd))
+				continue;
+
+			domains[count++] = &sc_pd->pd;
+			dev_dbg(dev, "added power domain %s\n", sc_pd->pd.name);
+		}
+	}
+
+	pd_data->domains = domains;
+	pd_data->num_domains = count;
+	pd_data->xlate = imx_scu_pd_xlate;
+
+	of_genpd_add_provider_onecell(dev->of_node, pd_data);
+
+	return 0;
+}
+
+static int imx_sc_pd_probe(struct platform_device *pdev)
+{
+	const struct imx_sc_pd_soc *pd_soc;
+	int ret;
+
+	ret = imx_scu_get_handle(&pm_ipc_handle);
+	if (ret)
+		return ret;
+
+	pd_soc = of_device_get_match_data(&pdev->dev);
+	if (!pd_soc)
+		return -ENODEV;
+
+	return imx_scu_init_pm_domains(&pdev->dev, pd_soc);
+}
+
+static const struct of_device_id imx_sc_pd_match[] = {
+	{ .compatible = "fsl,imx8qxp-scu-pd", &imx8qxp_scu_pd},
+	{ /* sentinel */ }
+};
+
+static struct platform_driver imx_sc_pd_driver = {
+	.driver = {
+		.name = "imx-scu-pd",
+		.of_match_table = imx_sc_pd_match,
+	},
+	.probe = imx_sc_pd_probe,
+};
+builtin_platform_driver(imx_sc_pd_driver);
+
+MODULE_AUTHOR("Dong Aisheng <aisheng.dong@nxp.com>");
+MODULE_DESCRIPTION("IMX SCU Power Domain driver");
+MODULE_LICENSE("GPL v2");

drivers/firmware/raspberrypi.c

+// SPDX-License-Identifier: GPL-2.0
 /*
  * Defines interfaces for interacting wtih the Raspberry Pi firmware's
  * property channel.
  *
  * Copyright © 2015 Broadcom
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #include <linux/dma-mapping.h>
@@ -14,6 +11,7 @@
 #include <linux/module.h>
 #include <linux/of_platform.h>
 #include <linux/platform_device.h>
+#include <linux/slab.h>
 #include <soc/bcm2835/raspberrypi-firmware.h>
 
 #define MBOX_MSG(chan, data28)		(((data28) & ~0xf) | ((chan) & 0xf))
@@ -21,8 +19,6 @@
 #define MBOX_DATA28(msg)		((msg) & ~0xf)
 #define MBOX_CHAN_PROPERTY		8
 
-#define MAX_RPI_FW_PROP_BUF_SIZE	32
-
 static struct platform_device *rpi_hwmon;
 
 struct rpi_firmware {
@@ -56,8 +52,12 @@ rpi_firmware_transaction(struct rpi_firmware *fw, u32 chan, u32 data)
 	reinit_completion(&fw->c);
 	ret = mbox_send_message(fw->chan, &message);
 	if (ret >= 0) {
-		wait_for_completion(&fw->c);
+		if (wait_for_completion_timeout(&fw->c, HZ)) {
 			ret = 0;
+		} else {
+			ret = -ETIMEDOUT;
+			WARN_ONCE(1, "Firmware transaction timeout");
+		}
 	} else {
 		dev_err(fw->cl.dev, "mbox_send_message returned %d\n", ret);
 	}
@@ -144,28 +144,30 @@ EXPORT_SYMBOL_GPL(rpi_firmware_property_list);
 int rpi_firmware_property(struct rpi_firmware *fw,
 			  u32 tag, void *tag_data, size_t buf_size)
 {
-	/* Single tags are very small (generally 8 bytes), so the
-	 * stack should be safe.
-	 */
-	u8 data[sizeof(struct rpi_firmware_property_tag_header) +
-		MAX_RPI_FW_PROP_BUF_SIZE];
-	struct rpi_firmware_property_tag_header *header =
-		(struct rpi_firmware_property_tag_header *)data;
+	struct rpi_firmware_property_tag_header *header;
 	int ret;
 
-	if (WARN_ON(buf_size > sizeof(data) - sizeof(*header)))
-		return -EINVAL;
+	/* Some mailboxes can use over 1k bytes. Rather than checking
+	 * size and using stack or kmalloc depending on requirements,
+	 * just use kmalloc. Mailboxes don't get called enough to worry
+	 * too much about the time taken in the allocation.
+	 */
+	void *data = kmalloc(sizeof(*header) + buf_size, GFP_KERNEL);
+
+	if (!data)
+		return -ENOMEM;
 
+	header = data;
 	header->tag = tag;
 	header->buf_size = buf_size;
 	header->req_resp_size = 0;
-	memcpy(data + sizeof(struct rpi_firmware_property_tag_header),
-	       tag_data, buf_size);
+	memcpy(data + sizeof(*header), tag_data, buf_size);
+
+	ret = rpi_firmware_property_list(fw, data, buf_size + sizeof(*header));
+
+	memcpy(tag_data, data + sizeof(*header), buf_size);
 
-	ret = rpi_firmware_property_list(fw, &data, buf_size + sizeof(*header));
-	memcpy(tag_data,
-	       data + sizeof(struct rpi_firmware_property_tag_header),
-	       buf_size);
+	kfree(data);
 
 	return ret;
 }

drivers/firmware/tegra/bpmp-debugfs.c

@@ -379,33 +379,6 @@ static int create_debugfs_mirror(struct tegra_bpmp *bpmp, void *buf,
 	return err;
 }
 
-static int mrq_is_supported(struct tegra_bpmp *bpmp, unsigned int mrq)
-{
-	struct mrq_query_abi_request req = { .mrq = cpu_to_le32(mrq) };
-	struct mrq_query_abi_response resp;
-	struct tegra_bpmp_message msg = {
-		.mrq = MRQ_QUERY_ABI,
-		.tx = {
-			.data = &req,
-			.size = sizeof(req),
-		},
-		.rx = {
-			.data = &resp,
-			.size = sizeof(resp),
-		},
-	};
-	int ret;
-
-	ret = tegra_bpmp_transfer(bpmp, &msg);
-	if (ret < 0) {
-		/* something went wrong; assume not supported */
-		dev_warn(bpmp->dev, "tegra_bpmp_transfer failed (%d)\n", ret);
-		return 0;
-	}
-
-	return resp.status ? 0 : 1;
-}
-
 int tegra_bpmp_init_debugfs(struct tegra_bpmp *bpmp)
 {
 	dma_addr_t phys;
@@ -415,7 +388,7 @@ int tegra_bpmp_init_debugfs(struct tegra_bpmp *bpmp)
 	int ret;
 	struct dentry *root;
 
-	if (!mrq_is_supported(bpmp, MRQ_DEBUGFS))
+	if (!tegra_bpmp_mrq_is_supported(bpmp, MRQ_DEBUGFS))
 		return 0;
 
 	root = debugfs_create_dir("bpmp", NULL);

drivers/firmware/tegra/bpmp.c

@@ -28,6 +28,7 @@
 
 #define MSG_ACK		BIT(0)
 #define MSG_RING	BIT(1)
+#define TAG_SZ		32
 
 static inline struct tegra_bpmp *
 mbox_client_to_bpmp(struct mbox_client *client)
@@ -470,6 +471,31 @@ void tegra_bpmp_free_mrq(struct tegra_bpmp *bpmp, unsigned int mrq, void *data)
 }
 EXPORT_SYMBOL_GPL(tegra_bpmp_free_mrq);
 
+bool tegra_bpmp_mrq_is_supported(struct tegra_bpmp *bpmp, unsigned int mrq)
+{
+	struct mrq_query_abi_request req = { .mrq = cpu_to_le32(mrq) };
+	struct mrq_query_abi_response resp;
+	struct tegra_bpmp_message msg = {
+		.mrq = MRQ_QUERY_ABI,
+		.tx = {
+			.data = &req,
+			.size = sizeof(req),
+		},
+		.rx = {
+			.data = &resp,
+			.size = sizeof(resp),
+		},
+	};
+	int ret;
+
+	ret = tegra_bpmp_transfer(bpmp, &msg);
+	if (ret || msg.rx.ret)
+		return false;
+
+	return resp.status == 0;
+}
+EXPORT_SYMBOL_GPL(tegra_bpmp_mrq_is_supported);
+
 static void tegra_bpmp_mrq_handle_ping(unsigned int mrq,
 				       struct tegra_bpmp_channel *channel,
 				       void *data)
@@ -521,7 +547,8 @@ static int tegra_bpmp_ping(struct tegra_bpmp *bpmp)
 	return err;
 }
 
-static int tegra_bpmp_get_firmware_tag(struct tegra_bpmp *bpmp, char *tag,
+/* deprecated version of tag query */
+static int tegra_bpmp_get_firmware_tag_old(struct tegra_bpmp *bpmp, char *tag,
 					   size_t size)
 {
 	struct mrq_query_tag_request request;
@@ -531,7 +558,10 @@ static int tegra_bpmp_get_firmware_tag(struct tegra_bpmp *bpmp, char *tag,
 	void *virt;
 	int err;
 
-	virt = dma_alloc_coherent(bpmp->dev, MSG_DATA_MIN_SZ, &phys,
+	if (size != TAG_SZ)
+		return -EINVAL;
+
+	virt = dma_alloc_coherent(bpmp->dev, TAG_SZ, &phys,
 				  GFP_KERNEL | GFP_DMA32);
 	if (!virt)
 		return -ENOMEM;
@@ -549,11 +579,42 @@ static int tegra_bpmp_get_firmware_tag(struct tegra_bpmp *bpmp, char *tag,
 	local_irq_restore(flags);
 
 	if (err == 0)
-		strlcpy(tag, virt, size);
+		memcpy(tag, virt, TAG_SZ);
+
+	dma_free_coherent(bpmp->dev, TAG_SZ, virt, phys);
+
+	return err;
+}
+
+static int tegra_bpmp_get_firmware_tag(struct tegra_bpmp *bpmp, char *tag,
+				       size_t size)
+{
+	if (tegra_bpmp_mrq_is_supported(bpmp, MRQ_QUERY_FW_TAG)) {
+		struct mrq_query_fw_tag_response resp;
+		struct tegra_bpmp_message msg = {
+			.mrq = MRQ_QUERY_FW_TAG,
+			.rx = {
+				.data = &resp,
+				.size = sizeof(resp),
+			},
+		};
+		int err;
 
-	dma_free_coherent(bpmp->dev, MSG_DATA_MIN_SZ, virt, phys);
+		if (size != sizeof(resp.tag))
+			return -EINVAL;
+
+		err = tegra_bpmp_transfer(bpmp, &msg);
 
+		if (err)
 			return err;
+		if (msg.rx.ret < 0)
+			return -EINVAL;
+
+		memcpy(tag, resp.tag, sizeof(resp.tag));
+		return 0;
+	}
+
+	return tegra_bpmp_get_firmware_tag_old(bpmp, tag, size);
 }
 
 static void tegra_bpmp_channel_signal(struct tegra_bpmp_channel *channel)
@@ -664,7 +725,7 @@ static int tegra_bpmp_probe(struct platform_device *pdev)
 {
 	struct tegra_bpmp *bpmp;
 	unsigned int i;
-	char tag[32];
+	char tag[TAG_SZ];
 	size_t size;
 	int err;
 
@@ -792,13 +853,13 @@ static int tegra_bpmp_probe(struct platform_device *pdev)
 		goto free_mrq;
 	}
 
-	err = tegra_bpmp_get_firmware_tag(bpmp, tag, sizeof(tag) - 1);
+	err = tegra_bpmp_get_firmware_tag(bpmp, tag, sizeof(tag));
 	if (err < 0) {
 		dev_err(&pdev->dev, "failed to get firmware tag: %d\n", err);
 		goto free_mrq;
 	}
 
-	dev_info(&pdev->dev, "firmware: %s\n", tag);
+	dev_info(&pdev->dev, "firmware: %.*s\n", (int)sizeof(tag), tag);
 
 	platform_set_drvdata(pdev, bpmp);
 

drivers/gpu/drm/msm/adreno/a6xx_gmu.c

@@ -902,26 +902,6 @@ static int a6xx_gmu_memory_probe(struct a6xx_gmu *gmu)
 	return ret;
 }
 
-/* Get the list of RPMh voltage levels from cmd-db */
-static int a6xx_gmu_rpmh_arc_cmds(const char *id, void *vals, int size)
-{
-	u32 len = cmd_db_read_aux_data_len(id);
-
-	if (!len)
-		return 0;
-
-	if (WARN_ON(len > size))
-		return -EINVAL;
-
-	cmd_db_read_aux_data(id, vals, len);
-
-	/*
-	 * The data comes back as an array of unsigned shorts so adjust the
-	 * count accordingly
-	 */
-	return len >> 1;
-}
-
 /* Return the 'arc-level' for the given frequency */
 static u32 a6xx_gmu_get_arc_level(struct device *dev, unsigned long freq)
 {
@@ -949,11 +929,30 @@ static u32 a6xx_gmu_get_arc_level(struct device *dev, unsigned long freq)
 }
 
 static int a6xx_gmu_rpmh_arc_votes_init(struct device *dev, u32 *votes,
-		unsigned long *freqs, int freqs_count,
-		u16 *pri, int pri_count,
-		u16 *sec, int sec_count)
+		unsigned long *freqs, int freqs_count, const char *id)
 {
 	int i, j;
+	const u16 *pri, *sec;
+	size_t pri_count, sec_count;
+
+	pri = cmd_db_read_aux_data(id, &pri_count);
+	if (IS_ERR(pri))
+		return PTR_ERR(pri);
+	/*
+	 * The data comes back as an array of unsigned shorts so adjust the
+	 * count accordingly
+	 */
+	pri_count >>= 1;
+	if (!pri_count)
+		return -EINVAL;
+
+	sec = cmd_db_read_aux_data("mx.lvl", &sec_count);
+	if (IS_ERR(sec))
+		return PTR_ERR(sec);
+
+	sec_count >>= 1;
+	if (!sec_count)
+		return -EINVAL;
 
 	/* Construct a vote for each frequency */
 	for (i = 0; i < freqs_count; i++) {
@@ -1012,25 +1011,15 @@ static int a6xx_gmu_rpmh_votes_init(struct a6xx_gmu *gmu)
 	struct a6xx_gpu *a6xx_gpu = container_of(gmu, struct a6xx_gpu, gmu);
 	struct adreno_gpu *adreno_gpu = &a6xx_gpu->base;
 	struct msm_gpu *gpu = &adreno_gpu->base;
-
-	u16 gx[16], cx[16], mx[16];
-	u32 gxcount, cxcount, mxcount;
 	int ret;
 
-	/* Get the list of available voltage levels for each component */
-	gxcount = a6xx_gmu_rpmh_arc_cmds("gfx.lvl", gx, sizeof(gx));
-	cxcount = a6xx_gmu_rpmh_arc_cmds("cx.lvl", cx, sizeof(cx));
-	mxcount = a6xx_gmu_rpmh_arc_cmds("mx.lvl", mx, sizeof(mx));
-
 	/* Build the GX votes */
 	ret = a6xx_gmu_rpmh_arc_votes_init(&gpu->pdev->dev, gmu->gx_arc_votes,
-		gmu->gpu_freqs, gmu->nr_gpu_freqs,
-		gx, gxcount, mx, mxcount);
+		gmu->gpu_freqs, gmu->nr_gpu_freqs, "gfx.lvl");
 
 	/* Build the CX votes */
 	ret |= a6xx_gmu_rpmh_arc_votes_init(gmu->dev, gmu->cx_arc_votes,
-		gmu->gmu_freqs, gmu->nr_gmu_freqs,
-		cx, cxcount, mx, mxcount);
+		gmu->gmu_freqs, gmu->nr_gmu_freqs, "cx.lvl");
 
 	return ret;
 }

drivers/memory/Kconfig

@@ -145,6 +145,15 @@ config DA8XX_DDRCTL
 	  Texas Instruments da8xx SoCs. It's used to tweak various memory
 	  controller configuration options.
 
+config PL353_SMC
+	tristate "ARM PL35X Static Memory Controller(SMC) driver"
+	default y
+	depends on ARM
+	depends on ARM_AMBA
+	help
+	  This driver is for the ARM PL351/PL353 Static Memory
+	  Controller(SMC) module.
+
 source "drivers/memory/samsung/Kconfig"
 source "drivers/memory/tegra/Kconfig"
 

drivers/memory/Makefile

@@ -19,6 +19,7 @@ obj-$(CONFIG_MVEBU_DEVBUS)	+= mvebu-devbus.o
 obj-$(CONFIG_JZ4780_NEMC)	+= jz4780-nemc.o
 obj-$(CONFIG_MTK_SMI)		+= mtk-smi.o
 obj-$(CONFIG_DA8XX_DDRCTL)	+= da8xx-ddrctl.o
+obj-$(CONFIG_PL353_SMC)		+= pl353-smc.o
 
 obj-$(CONFIG_SAMSUNG_MC)	+= samsung/
 obj-$(CONFIG_TEGRA_MC)		+= tegra/

drivers/memory/omap-gpmc.c

@@ -2060,7 +2060,7 @@ static int gpmc_probe_generic_child(struct platform_device *pdev,
 	 * timings.
 	 */
 	name = gpmc_cs_get_name(cs);
-	if (name && of_node_cmp(child->name, name) == 0)
+	if (name && of_node_name_eq(child, name))
 		goto no_timings;
 
 	ret = gpmc_cs_request(cs, resource_size(&res), &base);
@@ -2068,7 +2068,7 @@ static int gpmc_probe_generic_child(struct platform_device *pdev,
 		dev_err(&pdev->dev, "cannot request GPMC CS %d\n", cs);
 		return ret;
 	}
-	gpmc_cs_set_name(cs, child->name);
+	gpmc_cs_set_name(cs, child->full_name);
 
 	gpmc_read_settings_dt(child, &gpmc_s);
 	gpmc_read_timings_dt(child, &gpmc_t);
@@ -2113,7 +2113,7 @@ static int gpmc_probe_generic_child(struct platform_device *pdev,
 		goto err;
 	}
 
-	if (of_node_cmp(child->name, "nand") == 0) {
+	if (of_node_name_eq(child, "nand")) {
 		/* Warn about older DT blobs with no compatible property */
 		if (!of_property_read_bool(child, "compatible")) {
 			dev_warn(&pdev->dev,
@@ -2123,7 +2123,7 @@ static int gpmc_probe_generic_child(struct platform_device *pdev,
 		}
 	}
 
-	if (of_node_cmp(child->name, "onenand") == 0) {
+	if (of_node_name_eq(child, "onenand")) {
 		/* Warn about older DT blobs with no compatible property */
 		if (!of_property_read_bool(child, "compatible")) {
 			dev_warn(&pdev->dev,

drivers/memory/tegra/Kconfig

@@ -6,6 +6,16 @@ config TEGRA_MC
 	  This driver supports the Memory Controller (MC) hardware found on
 	  NVIDIA Tegra SoCs.
 
+config TEGRA20_EMC
+	bool "NVIDIA Tegra20 External Memory Controller driver"
+	default y
+	depends on ARCH_TEGRA_2x_SOC
+	help
+	  This driver is for the External Memory Controller (EMC) found on
+	  Tegra20 chips. The EMC controls the external DRAM on the board.
+	  This driver is required to change memory timings / clock rate for
+	  external memory.
+
 config TEGRA124_EMC
 	bool "NVIDIA Tegra124 External Memory Controller driver"
 	default y

drivers/memory/tegra/Makefile

@@ -10,5 +10,6 @@ tegra-mc-$(CONFIG_ARCH_TEGRA_210_SOC) += tegra210.o
 
 obj-$(CONFIG_TEGRA_MC) += tegra-mc.o
 
+obj-$(CONFIG_TEGRA20_EMC)  += tegra20-emc.o
 obj-$(CONFIG_TEGRA124_EMC) += tegra124-emc.o
 obj-$(CONFIG_ARCH_TEGRA_186_SOC) += tegra186.o

drivers/soc/Makefile

@@ -13,7 +13,7 @@ obj-$(CONFIG_ARCH_GEMINI)	+= gemini/
 obj-$(CONFIG_ARCH_MXC)		+= imx/
 obj-$(CONFIG_SOC_XWAY)		+= lantiq/
 obj-y				+= mediatek/
-obj-$(CONFIG_ARCH_MESON)	+= amlogic/
+obj-y				+= amlogic/
 obj-y				+= qcom/
 obj-y				+= renesas/
 obj-$(CONFIG_ARCH_ROCKCHIP)	+= rockchip/

drivers/soc/amlogic/Kconfig

@@ -7,6 +7,15 @@ config MESON_CANVAS
 	help
 	  Say yes to support the canvas IP for Amlogic SoCs.
 
+config MESON_CLK_MEASURE
+	bool "Amlogic Meson SoC Clock Measure driver"
+	depends on ARCH_MESON || COMPILE_TEST
+	default ARCH_MESON
+	select REGMAP_MMIO
+	help
+	  Say yes to support of Measuring a set of internal SoC clocks
+	  from the debugfs interface.
+
 config MESON_GX_SOCINFO
 	bool "Amlogic Meson GX SoC Information driver"
 	depends on ARCH_MESON || COMPILE_TEST

drivers/soc/amlogic/Makefile

 obj-$(CONFIG_MESON_CANVAS) += meson-canvas.o
+obj-$(CONFIG_MESON_CLK_MEASURE) += meson-clk-measure.o
 obj-$(CONFIG_MESON_GX_SOCINFO) += meson-gx-socinfo.o
 obj-$(CONFIG_MESON_GX_PM_DOMAINS) += meson-gx-pwrc-vpu.o
 obj-$(CONFIG_MESON_MX_SOCINFO) += meson-mx-socinfo.o

drivers/soc/amlogic/meson-clk-measure.c

+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (c) 2018 BayLibre, SAS
+ * Author: Neil Armstrong <narmstrong@baylibre.com>
+ */
+
+#include <linux/of_address.h>
+#include <linux/platform_device.h>
+#include <linux/bitfield.h>
+#include <linux/seq_file.h>
+#include <linux/debugfs.h>
+#include <linux/regmap.h>
+
+#define MSR_CLK_DUTY		0x0
+#define MSR_CLK_REG0		0x4
+#define MSR_CLK_REG1		0x8
+#define MSR_CLK_REG2		0xc
+
+#define MSR_DURATION		GENMASK(15, 0)
+#define MSR_ENABLE		BIT(16)
+#define MSR_CONT		BIT(17) /* continuous measurement */
+#define MSR_INTR		BIT(18) /* interrupts */
+#define MSR_RUN			BIT(19)
+#define MSR_CLK_SRC		GENMASK(26, 20)
+#define MSR_BUSY		BIT(31)
+
+#define MSR_VAL_MASK		GENMASK(15, 0)
+
+#define DIV_MIN			32
+#define DIV_STEP		32
+#define DIV_MAX			640
+
+#define CLK_MSR_MAX		128
+
+struct meson_msr_id {
+	struct meson_msr *priv;
+	unsigned int id;
+	const char *name;
+};
+
+struct meson_msr {
+	struct regmap *regmap;
+	struct meson_msr_id msr_table[CLK_MSR_MAX];
+};
+
+#define CLK_MSR_ID(__id, __name) \
+	[__id] = {.id = __id, .name = __name,}
+
+static struct meson_msr_id clk_msr_m8[CLK_MSR_MAX] = {
+	CLK_MSR_ID(0, "ring_osc_out_ee0"),
+	CLK_MSR_ID(1, "ring_osc_out_ee1"),
+	CLK_MSR_ID(2, "ring_osc_out_ee2"),
+	CLK_MSR_ID(3, "a9_ring_osck"),
+	CLK_MSR_ID(6, "vid_pll"),
+	CLK_MSR_ID(7, "clk81"),
+	CLK_MSR_ID(8, "encp"),
+	CLK_MSR_ID(9, "encl"),
+	CLK_MSR_ID(11, "eth_rmii"),
+	CLK_MSR_ID(13, "amclk"),
+	CLK_MSR_ID(14, "fec_clk_0"),
+	CLK_MSR_ID(15, "fec_clk_1"),
+	CLK_MSR_ID(16, "fec_clk_2"),
+	CLK_MSR_ID(18, "a9_clk_div16"),
+	CLK_MSR_ID(19, "hdmi_sys"),
+	CLK_MSR_ID(20, "rtc_osc_clk_out"),
+	CLK_MSR_ID(21, "i2s_clk_in_src0"),
+	CLK_MSR_ID(22, "clk_rmii_from_pad"),
+	CLK_MSR_ID(23, "hdmi_ch0_tmds"),
+	CLK_MSR_ID(24, "lvds_fifo"),
+	CLK_MSR_ID(26, "sc_clk_int"),
+	CLK_MSR_ID(28, "sar_adc"),
+	CLK_MSR_ID(30, "mpll_clk_test_out"),
+	CLK_MSR_ID(31, "audac_clkpi"),
+	CLK_MSR_ID(32, "vdac"),
+	CLK_MSR_ID(33, "sdhc_rx"),
+	CLK_MSR_ID(34, "sdhc_sd"),
+	CLK_MSR_ID(35, "mali"),
+	CLK_MSR_ID(36, "hdmi_tx_pixel"),
+	CLK_MSR_ID(38, "vdin_meas"),
+	CLK_MSR_ID(39, "pcm_sclk"),
+	CLK_MSR_ID(40, "pcm_mclk"),
+	CLK_MSR_ID(41, "eth_rx_tx"),
+	CLK_MSR_ID(42, "pwm_d"),
+	CLK_MSR_ID(43, "pwm_c"),
+	CLK_MSR_ID(44, "pwm_b"),
+	CLK_MSR_ID(45, "pwm_a"),
+	CLK_MSR_ID(46, "pcm2_sclk"),
+	CLK_MSR_ID(47, "ddr_dpll_pt"),
+	CLK_MSR_ID(48, "pwm_f"),
+	CLK_MSR_ID(49, "pwm_e"),
+	CLK_MSR_ID(59, "hcodec"),
+	CLK_MSR_ID(60, "usb_32k_alt"),
+	CLK_MSR_ID(61, "gpio"),
+	CLK_MSR_ID(62, "vid2_pll"),
+	CLK_MSR_ID(63, "mipi_csi_cfg"),
+};
+
+static struct meson_msr_id clk_msr_gx[CLK_MSR_MAX] = {
+	CLK_MSR_ID(0, "ring_osc_out_ee_0"),
+	CLK_MSR_ID(1, "ring_osc_out_ee_1"),
+	CLK_MSR_ID(2, "ring_osc_out_ee_2"),
+	CLK_MSR_ID(3, "a53_ring_osc"),
+	CLK_MSR_ID(4, "gp0_pll"),
+	CLK_MSR_ID(6, "enci"),
+	CLK_MSR_ID(7, "clk81"),
+	CLK_MSR_ID(8, "encp"),
+	CLK_MSR_ID(9, "encl"),
+	CLK_MSR_ID(10, "vdac"),
+	CLK_MSR_ID(11, "rgmii_tx"),
+	CLK_MSR_ID(12, "pdm"),
+	CLK_MSR_ID(13, "amclk"),
+	CLK_MSR_ID(14, "fec_0"),
+	CLK_MSR_ID(15, "fec_1"),
+	CLK_MSR_ID(16, "fec_2"),
+	CLK_MSR_ID(17, "sys_pll_div16"),
+	CLK_MSR_ID(18, "sys_cpu_div16"),
+	CLK_MSR_ID(19, "hdmitx_sys"),
+	CLK_MSR_ID(20, "rtc_osc_out"),
+	CLK_MSR_ID(21, "i2s_in_src0"),
+	CLK_MSR_ID(22, "eth_phy_ref"),
+	CLK_MSR_ID(23, "hdmi_todig"),
+	CLK_MSR_ID(26, "sc_int"),
+	CLK_MSR_ID(28, "sar_adc"),
+	CLK_MSR_ID(31, "mpll_test_out"),
+	CLK_MSR_ID(32, "vdec"),
+	CLK_MSR_ID(35, "mali"),
+	CLK_MSR_ID(36, "hdmi_tx_pixel"),
+	CLK_MSR_ID(37, "i958"),
+	CLK_MSR_ID(38, "vdin_meas"),
+	CLK_MSR_ID(39, "pcm_sclk"),
+	CLK_MSR_ID(40, "pcm_mclk"),
+	CLK_MSR_ID(41, "eth_rx_or_rmii"),
+	CLK_MSR_ID(42, "mp0_out"),
+	CLK_MSR_ID(43, "fclk_div5"),
+	CLK_MSR_ID(44, "pwm_b"),
+	CLK_MSR_ID(45, "pwm_a"),
+	CLK_MSR_ID(46, "vpu"),
+	CLK_MSR_ID(47, "ddr_dpll_pt"),
+	CLK_MSR_ID(48, "mp1_out"),
+	CLK_MSR_ID(49, "mp2_out"),
+	CLK_MSR_ID(50, "mp3_out"),
+	CLK_MSR_ID(51, "nand_core"),
+	CLK_MSR_ID(52, "sd_emmc_b"),
+	CLK_MSR_ID(53, "sd_emmc_a"),
+	CLK_MSR_ID(55, "vid_pll_div_out"),
+	CLK_MSR_ID(56, "cci"),
+	CLK_MSR_ID(57, "wave420l_c"),
+	CLK_MSR_ID(58, "wave420l_b"),
+	CLK_MSR_ID(59, "hcodec"),
+	CLK_MSR_ID(60, "alt_32k"),
+	CLK_MSR_ID(61, "gpio_msr"),
+	CLK_MSR_ID(62, "hevc"),
+	CLK_MSR_ID(66, "vid_lock"),
+	CLK_MSR_ID(70, "pwm_f"),
+	CLK_MSR_ID(71, "pwm_e"),
+	CLK_MSR_ID(72, "pwm_d"),
+	CLK_MSR_ID(73, "pwm_c"),
+	CLK_MSR_ID(75, "aoclkx2_int"),
+	CLK_MSR_ID(76, "aoclk_int"),
+	CLK_MSR_ID(77, "rng_ring_osc_0"),
+	CLK_MSR_ID(78, "rng_ring_osc_1"),
+	CLK_MSR_ID(79, "rng_ring_osc_2"),
+	CLK_MSR_ID(80, "rng_ring_osc_3"),
+	CLK_MSR_ID(81, "vapb"),
+	CLK_MSR_ID(82, "ge2d"),
+};
+
+static int meson_measure_id(struct meson_msr_id *clk_msr_id,
+			       unsigned int duration)
+{
+	struct meson_msr *priv = clk_msr_id->priv;
+	unsigned int val;
+	int ret;
+
+	regmap_write(priv->regmap, MSR_CLK_REG0, 0);
+
+	/* Set measurement duration */
+	regmap_update_bits(priv->regmap, MSR_CLK_REG0, MSR_DURATION,
+			   FIELD_PREP(MSR_DURATION, duration - 1));
+
+	/* Set ID */
+	regmap_update_bits(priv->regmap, MSR_CLK_REG0, MSR_CLK_SRC,
+			   FIELD_PREP(MSR_CLK_SRC, clk_msr_id->id));
+
+	/* Enable & Start */
+	regmap_update_bits(priv->regmap, MSR_CLK_REG0,
+			   MSR_RUN | MSR_ENABLE,
+			   MSR_RUN | MSR_ENABLE);
+
+	ret = regmap_read_poll_timeout(priv->regmap, MSR_CLK_REG0,
+				       val, !(val & MSR_BUSY), 10, 10000);
+	if (ret)
+		return ret;
+
+	/* Disable */
+	regmap_update_bits(priv->regmap, MSR_CLK_REG0, MSR_ENABLE, 0);
+
+	/* Get the value in multiple of gate time counts */
+	regmap_read(priv->regmap, MSR_CLK_REG2, &val);
+
+	if (val >= MSR_VAL_MASK)
+		return -EINVAL;
+
+	return DIV_ROUND_CLOSEST_ULL((val & MSR_VAL_MASK) * 1000000ULL,
+				     duration);
+}
+
+static int meson_measure_best_id(struct meson_msr_id *clk_msr_id,
+				    unsigned int *precision)
+{
+	unsigned int duration = DIV_MAX;
+	int ret;
+
+	/* Start from max duration and down to min duration */
+	do {
+		ret = meson_measure_id(clk_msr_id, duration);
+		if (ret >= 0)
+			*precision = (2 * 1000000) / duration;
+		else
+			duration -= DIV_STEP;
+	} while (duration >= DIV_MIN && ret == -EINVAL);
+
+	return ret;
+}
+
+static int clk_msr_show(struct seq_file *s, void *data)
+{
+	struct meson_msr_id *clk_msr_id = s->private;
+	unsigned int precision = 0;
+	int val;
+
+	val = meson_measure_best_id(clk_msr_id, &precision);
+	if (val < 0)
+		return val;
+
+	seq_printf(s, "%d\t+/-%dHz\n", val, precision);
+
+	return 0;
+}
+DEFINE_SHOW_ATTRIBUTE(clk_msr);
+
+static int clk_msr_summary_show(struct seq_file *s, void *data)
+{
+	struct meson_msr_id *msr_table = s->private;
+	unsigned int precision = 0;
+	int val, i;
+
+	seq_puts(s, "  clock                     rate    precision\n");
+	seq_puts(s, "---------------------------------------------\n");
+
+	for (i = 0 ; i < CLK_MSR_MAX ; ++i) {
+		if (!msr_table[i].name)
+			continue;
+
+		val = meson_measure_best_id(&msr_table[i], &precision);
+		if (val < 0)
+			return val;
+
+		seq_printf(s, " %-20s %10d    +/-%dHz\n",
+			   msr_table[i].name, val, precision);
+	}
+
+	return 0;
+}
+DEFINE_SHOW_ATTRIBUTE(clk_msr_summary);
+
+static const struct regmap_config meson_clk_msr_regmap_config = {
+	.reg_bits = 32,
+	.val_bits = 32,
+	.reg_stride = 4,
+	.max_register = MSR_CLK_REG2,
+};
+
+static int meson_msr_probe(struct platform_device *pdev)
+{
+	const struct meson_msr_id *match_data;
+	struct meson_msr *priv;
+	struct resource *res;
+	struct dentry *root, *clks;
+	void __iomem *base;
+	int i;
+
+	priv = devm_kzalloc(&pdev->dev, sizeof(struct meson_msr),
+			    GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+
+	match_data = device_get_match_data(&pdev->dev);
+	if (!match_data) {
+		dev_err(&pdev->dev, "failed to get match data\n");
+		return -ENODEV;
+	}
+
+	memcpy(priv->msr_table, match_data, sizeof(priv->msr_table));
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	base = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(base)) {
+		dev_err(&pdev->dev, "io resource mapping failed\n");
+		return PTR_ERR(base);
+	}
+
+	priv->regmap = devm_regmap_init_mmio(&pdev->dev, base,
+					     &meson_clk_msr_regmap_config);
+	if (IS_ERR(priv->regmap))
+		return PTR_ERR(priv->regmap);
+
+	root = debugfs_create_dir("meson-clk-msr", NULL);
+	clks = debugfs_create_dir("clks", root);
+
+	debugfs_create_file("measure_summary", 0444, root,
+			    priv->msr_table, &clk_msr_summary_fops);
+
+	for (i = 0 ; i < CLK_MSR_MAX ; ++i) {
+		if (!priv->msr_table[i].name)
+			continue;
+
+		priv->msr_table[i].priv = priv;
+
+		debugfs_create_file(priv->msr_table[i].name, 0444, clks,
+				    &priv->msr_table[i], &clk_msr_fops);
+	}
+
+	return 0;
+}
+
+static const struct of_device_id meson_msr_match_table[] = {
+	{
+		.compatible = "amlogic,meson-gx-clk-measure",
+		.data = (void *)clk_msr_gx,
+	},
+	{
+		.compatible = "amlogic,meson8-clk-measure",
+		.data = (void *)clk_msr_m8,
+	},
+	{
+		.compatible = "amlogic,meson8b-clk-measure",
+		.data = (void *)clk_msr_m8,
+	},
+	{ /* sentinel */ }
+};
+
+static struct platform_driver meson_msr_driver = {
+	.probe	= meson_msr_probe,
+	.driver = {
+		.name		= "meson_msr",
+		.of_match_table	= meson_msr_match_table,
+	},
+};
+builtin_platform_driver(meson_msr_driver);

drivers/soc/atmel/soc.c

@@ -66,6 +66,8 @@ static const struct at91_soc __initconst socs[] = {
 	AT91_SOC(AT91SAM9XE128_CIDR_MATCH, 0, "at91sam9xe128", "at91sam9xe128"),
 	AT91_SOC(AT91SAM9XE256_CIDR_MATCH, 0, "at91sam9xe256", "at91sam9xe256"),
 	AT91_SOC(AT91SAM9XE512_CIDR_MATCH, 0, "at91sam9xe512", "at91sam9xe512"),
+	AT91_SOC(SAM9X60_CIDR_MATCH, SAM9X60_EXID_MATCH,
+		 "sam9x60", "sam9x60"),
 #endif
 #ifdef CONFIG_SOC_SAMA5
 	AT91_SOC(SAMA5D2_CIDR_MATCH, SAMA5D21CU_EXID_MATCH,
@@ -90,12 +92,20 @@ static const struct at91_soc __initconst socs[] = {
 		 "sama5d27c 128MiB SiP", "sama5d2"),
 	AT91_SOC(SAMA5D2_CIDR_MATCH, SAMA5D27C_D5M_EXID_MATCH,
 		 "sama5d27c 64MiB SiP", "sama5d2"),
+	AT91_SOC(SAMA5D2_CIDR_MATCH, SAMA5D27C_LD1G_EXID_MATCH,
+		 "sama5d27c 128MiB LPDDR2 SiP", "sama5d2"),
+	AT91_SOC(SAMA5D2_CIDR_MATCH, SAMA5D27C_LD2G_EXID_MATCH,
+		 "sama5d27c 256MiB LPDDR2 SiP", "sama5d2"),
 	AT91_SOC(SAMA5D2_CIDR_MATCH, SAMA5D28CU_EXID_MATCH,
 		 "sama5d28", "sama5d2"),
 	AT91_SOC(SAMA5D2_CIDR_MATCH, SAMA5D28CN_EXID_MATCH,
 		 "sama5d28", "sama5d2"),
 	AT91_SOC(SAMA5D2_CIDR_MATCH, SAMA5D28C_D1G_EXID_MATCH,
 		 "sama5d28c 128MiB SiP", "sama5d2"),
+	AT91_SOC(SAMA5D2_CIDR_MATCH, SAMA5D28C_LD1G_EXID_MATCH,
+		 "sama5d28c 128MiB LPDDR2 SiP", "sama5d2"),
+	AT91_SOC(SAMA5D2_CIDR_MATCH, SAMA5D28C_LD2G_EXID_MATCH,
+		 "sama5d28c 256MiB LPDDR2 SiP", "sama5d2"),
 	AT91_SOC(SAMA5D3_CIDR_MATCH, SAMA5D31_EXID_MATCH,
 		 "sama5d31", "sama5d3"),
 	AT91_SOC(SAMA5D3_CIDR_MATCH, SAMA5D33_EXID_MATCH,

drivers/soc/atmel/soc.h

@@ -42,6 +42,7 @@ at91_soc_init(const struct at91_soc *socs);
 #define AT91SAM9G45_CIDR_MATCH		0x019b05a0
 #define AT91SAM9X5_CIDR_MATCH		0x019a05a0
 #define AT91SAM9N12_CIDR_MATCH		0x019a07a0
+#define SAM9X60_CIDR_MATCH		0x019b35a0
 
 #define AT91SAM9M11_EXID_MATCH		0x00000001
 #define AT91SAM9M10_EXID_MATCH		0x00000002
@@ -58,6 +59,8 @@ at91_soc_init(const struct at91_soc *socs);
 #define AT91SAM9N12_EXID_MATCH		0x00000006
 #define AT91SAM9CN11_EXID_MATCH		0x00000009
 
+#define SAM9X60_EXID_MATCH		0x00000000
+
 #define AT91SAM9XE128_CIDR_MATCH	0x329973a0
 #define AT91SAM9XE256_CIDR_MATCH	0x329a93a0
 #define AT91SAM9XE512_CIDR_MATCH	0x329aa3a0
@@ -73,9 +76,13 @@ at91_soc_init(const struct at91_soc *socs);
 #define SAMA5D26CU_EXID_MATCH		0x00000012
 #define SAMA5D27C_D1G_EXID_MATCH	0x00000033
 #define SAMA5D27C_D5M_EXID_MATCH	0x00000032
+#define SAMA5D27C_LD1G_EXID_MATCH	0x00000061
+#define SAMA5D27C_LD2G_EXID_MATCH	0x00000062
 #define SAMA5D27CU_EXID_MATCH		0x00000011
 #define SAMA5D27CN_EXID_MATCH		0x00000021
 #define SAMA5D28C_D1G_EXID_MATCH	0x00000013
+#define SAMA5D28C_LD1G_EXID_MATCH	0x00000071
+#define SAMA5D28C_LD2G_EXID_MATCH	0x00000072
 #define SAMA5D28CU_EXID_MATCH		0x00000010
 #define SAMA5D28CN_EXID_MATCH		0x00000020
 

drivers/soc/bcm/brcmstb/common.c

@@ -31,13 +31,17 @@ static const struct of_device_id brcmstb_machine_match[] = {
 
 bool soc_is_brcmstb(void)
 {
+	const struct of_device_id *match;
 	struct device_node *root;
 
 	root = of_find_node_by_path("/");
 	if (!root)
 		return false;
 
-	return of_match_node(brcmstb_machine_match, root) != NULL;
+	match = of_match_node(brcmstb_machine_match, root);
+	of_node_put(root);
+
+	return match != NULL;
 }
 
 u32 brcmstb_get_family_id(void)

drivers/soc/bcm/brcmstb/pm/pm-arm.c

@@ -404,7 +404,7 @@ noinline int brcmstb_pm_s3_finish(void)
 {
 	struct brcmstb_s3_params *params = ctrl.s3_params;
 	dma_addr_t params_pa = ctrl.s3_params_pa;
-	phys_addr_t reentry = virt_to_phys(&cpu_resume);
+	phys_addr_t reentry = virt_to_phys(&cpu_resume_arm);
 	enum bsp_initiate_command cmd;
 	u32 flags;
 

drivers/soc/bcm/raspberrypi-power.c

+// SPDX-License-Identifier: GPL-2.0
 /* (C) 2015 Pengutronix, Alexander Aring <aar@pengutronix.de>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  *
  * Authors:
  * Alexander Aring <aar@pengutronix.de>

drivers/soc/imx/Kconfig

 menu "i.MX SoC drivers"
 
-config IMX7_PM_DOMAINS
-	bool "i.MX7 PM domains"
-	depends on SOC_IMX7D || (COMPILE_TEST && OF)
+config IMX_GPCV2_PM_DOMAINS
+	bool "i.MX GPCv2 PM domains"
+	depends on SOC_IMX7D || SOC_IMX8MQ || (COMPILE_TEST && OF)
 	depends on PM
 	select PM_GENERIC_DOMAINS
 	default y if SOC_IMX7D

drivers/soc/imx/Makefile

 obj-$(CONFIG_HAVE_IMX_GPC) += gpc.o
-obj-$(CONFIG_IMX7_PM_DOMAINS) += gpcv2.o
+obj-$(CONFIG_IMX_GPCV2_PM_DOMAINS) += gpcv2.o

drivers/soc/imx/gpc.c

@@ -35,7 +35,7 @@
 #define GPU_VPU_PUP_REQ		BIT(1)
 #define GPU_VPU_PDN_REQ		BIT(0)
 
-#define GPC_CLK_MAX		6
+#define GPC_CLK_MAX		7
 
 #define PGC_DOMAIN_FLAG_NO_PD		BIT(0)
 

drivers/soc/mediatek/Kconfig

@@ -4,6 +4,18 @@
 menu "MediaTek SoC drivers"
 	depends on ARCH_MEDIATEK || COMPILE_TEST
 
+config MTK_CMDQ
+	tristate "MediaTek CMDQ Support"
+	depends on ARCH_MEDIATEK || COMPILE_TEST
+	select MAILBOX
+	select MTK_CMDQ_MBOX
+	select MTK_INFRACFG
+	help
+	  Say yes here to add support for the MediaTek Command Queue (CMDQ)
+	  driver. The CMDQ is used to help read/write registers with critical
+	  time limitation, such as updating display configuration during the
+	  vblank.
+
 config MTK_INFRACFG
 	bool "MediaTek INFRACFG Support"
 	select REGMAP

drivers/soc/mediatek/Makefile

+obj-$(CONFIG_MTK_CMDQ) += mtk-cmdq-helper.o
 obj-$(CONFIG_MTK_INFRACFG) += mtk-infracfg.o
 obj-$(CONFIG_MTK_PMIC_WRAP) += mtk-pmic-wrap.o
 obj-$(CONFIG_MTK_SCPSYS) += mtk-scpsys.o

drivers/soc/mediatek/mtk-cmdq-helper.c

+// SPDX-License-Identifier: GPL-2.0
+//
+// Copyright (c) 2018 MediaTek Inc.
+
+#include <linux/completion.h>
+#include <linux/errno.h>
+#include <linux/dma-mapping.h>
+#include <linux/module.h>
+#include <linux/mailbox_controller.h>
+#include <linux/soc/mediatek/mtk-cmdq.h>
+
+#define CMDQ_ARG_A_WRITE_MASK	0xffff
+#define CMDQ_WRITE_ENABLE_MASK	BIT(0)
+#define CMDQ_EOC_IRQ_EN		BIT(0)
+#define CMDQ_EOC_CMD		((u64)((CMDQ_CODE_EOC << CMDQ_OP_CODE_SHIFT)) \
+				<< 32 | CMDQ_EOC_IRQ_EN)
+
+static void cmdq_client_timeout(struct timer_list *t)
+{
+	struct cmdq_client *client = from_timer(client, t, timer);
+
+	dev_err(client->client.dev, "cmdq timeout!\n");
+}
+
+struct cmdq_client *cmdq_mbox_create(struct device *dev, int index, u32 timeout)
+{
+	struct cmdq_client *client;
+
+	client = kzalloc(sizeof(*client), GFP_KERNEL);
+	if (!client)
+		return (struct cmdq_client *)-ENOMEM;
+
+	client->timeout_ms = timeout;
+	if (timeout != CMDQ_NO_TIMEOUT) {
+		spin_lock_init(&client->lock);
+		timer_setup(&client->timer, cmdq_client_timeout, 0);
+	}
+	client->pkt_cnt = 0;
+	client->client.dev = dev;
+	client->client.tx_block = false;
+	client->chan = mbox_request_channel(&client->client, index);
+
+	if (IS_ERR(client->chan)) {
+		long err;
+
+		dev_err(dev, "failed to request channel\n");
+		err = PTR_ERR(client->chan);
+		kfree(client);
+
+		return ERR_PTR(err);
+	}
+
+	return client;
+}
+EXPORT_SYMBOL(cmdq_mbox_create);
+
+void cmdq_mbox_destroy(struct cmdq_client *client)
+{
+	if (client->timeout_ms != CMDQ_NO_TIMEOUT) {
+		spin_lock(&client->lock);
+		del_timer_sync(&client->timer);
+		spin_unlock(&client->lock);
+	}
+	mbox_free_channel(client->chan);
+	kfree(client);
+}
+EXPORT_SYMBOL(cmdq_mbox_destroy);
+
+struct cmdq_pkt *cmdq_pkt_create(struct cmdq_client *client, size_t size)
+{
+	struct cmdq_pkt *pkt;
+	struct device *dev;
+	dma_addr_t dma_addr;
+
+	pkt = kzalloc(sizeof(*pkt), GFP_KERNEL);
+	if (!pkt)
+		return ERR_PTR(-ENOMEM);
+	pkt->va_base = kzalloc(size, GFP_KERNEL);
+	if (!pkt->va_base) {
+		kfree(pkt);
+		return ERR_PTR(-ENOMEM);
+	}
+	pkt->buf_size = size;
+	pkt->cl = (void *)client;
+
+	dev = client->chan->mbox->dev;
+	dma_addr = dma_map_single(dev, pkt->va_base, pkt->buf_size,
+				  DMA_TO_DEVICE);
+	if (dma_mapping_error(dev, dma_addr)) {
+		dev_err(dev, "dma map failed, size=%u\n", (u32)(u64)size);
+		kfree(pkt->va_base);
+		kfree(pkt);
+		return ERR_PTR(-ENOMEM);
+	}
+
+	pkt->pa_base = dma_addr;
+
+	return pkt;
+}
+EXPORT_SYMBOL(cmdq_pkt_create);
+
+void cmdq_pkt_destroy(struct cmdq_pkt *pkt)
+{
+	struct cmdq_client *client = (struct cmdq_client *)pkt->cl;
+
+	dma_unmap_single(client->chan->mbox->dev, pkt->pa_base, pkt->buf_size,
+			 DMA_TO_DEVICE);
+	kfree(pkt->va_base);
+	kfree(pkt);
+}
+EXPORT_SYMBOL(cmdq_pkt_destroy);
+
+static int cmdq_pkt_append_command(struct cmdq_pkt *pkt, enum cmdq_code code,
+				   u32 arg_a, u32 arg_b)
+{
+	u64 *cmd_ptr;
+
+	if (unlikely(pkt->cmd_buf_size + CMDQ_INST_SIZE > pkt->buf_size)) {
+		/*
+		 * In the case of allocated buffer size (pkt->buf_size) is used
+		 * up, the real required size (pkt->cmdq_buf_size) is still
+		 * increased, so that the user knows how much memory should be
+		 * ultimately allocated after appending all commands and
+		 * flushing the command packet. Therefor, the user can call
+		 * cmdq_pkt_create() again with the real required buffer size.
+		 */
+		pkt->cmd_buf_size += CMDQ_INST_SIZE;
+		WARN_ONCE(1, "%s: buffer size %u is too small !\n",
+			__func__, (u32)pkt->buf_size);
+		return -ENOMEM;
+	}
+	cmd_ptr = pkt->va_base + pkt->cmd_buf_size;
+	(*cmd_ptr) = (u64)((code << CMDQ_OP_CODE_SHIFT) | arg_a) << 32 | arg_b;
+	pkt->cmd_buf_size += CMDQ_INST_SIZE;
+
+	return 0;
+}
+
+int cmdq_pkt_write(struct cmdq_pkt *pkt, u32 value, u32 subsys, u32 offset)
+{
+	u32 arg_a = (offset & CMDQ_ARG_A_WRITE_MASK) |
+		    (subsys << CMDQ_SUBSYS_SHIFT);
+
+	return cmdq_pkt_append_command(pkt, CMDQ_CODE_WRITE, arg_a, value);
+}
+EXPORT_SYMBOL(cmdq_pkt_write);
+
+int cmdq_pkt_write_mask(struct cmdq_pkt *pkt, u32 value,
+			u32 subsys, u32 offset, u32 mask)
+{
+	u32 offset_mask = offset;
+	int err = 0;
+
+	if (mask != 0xffffffff) {
+		err = cmdq_pkt_append_command(pkt, CMDQ_CODE_MASK, 0, ~mask);
+		offset_mask |= CMDQ_WRITE_ENABLE_MASK;
+	}
+	err |= cmdq_pkt_write(pkt, value, subsys, offset_mask);
+
+	return err;
+}
+EXPORT_SYMBOL(cmdq_pkt_write_mask);
+
+int cmdq_pkt_wfe(struct cmdq_pkt *pkt, u32 event)
+{
+	u32 arg_b;
+
+	if (event >= CMDQ_MAX_EVENT)
+		return -EINVAL;
+
+	/*
+	 * WFE arg_b
+	 * bit 0-11: wait value
+	 * bit 15: 1 - wait, 0 - no wait
+	 * bit 16-27: update value
+	 * bit 31: 1 - update, 0 - no update
+	 */
+	arg_b = CMDQ_WFE_UPDATE | CMDQ_WFE_WAIT | CMDQ_WFE_WAIT_VALUE;
+
+	return cmdq_pkt_append_command(pkt, CMDQ_CODE_WFE, event, arg_b);
+}
+EXPORT_SYMBOL(cmdq_pkt_wfe);
+
+int cmdq_pkt_clear_event(struct cmdq_pkt *pkt, u32 event)
+{
+	if (event >= CMDQ_MAX_EVENT)
+		return -EINVAL;
+
+	return cmdq_pkt_append_command(pkt, CMDQ_CODE_WFE, event,
+				       CMDQ_WFE_UPDATE);
+}
+EXPORT_SYMBOL(cmdq_pkt_clear_event);
+
+static int cmdq_pkt_finalize(struct cmdq_pkt *pkt)
+{
+	int err;
+
+	/* insert EOC and generate IRQ for each command iteration */
+	err = cmdq_pkt_append_command(pkt, CMDQ_CODE_EOC, 0, CMDQ_EOC_IRQ_EN);
+
+	/* JUMP to end */
+	err |= cmdq_pkt_append_command(pkt, CMDQ_CODE_JUMP, 0, CMDQ_JUMP_PASS);
+
+	return err;
+}
+
+static void cmdq_pkt_flush_async_cb(struct cmdq_cb_data data)
+{
+	struct cmdq_pkt *pkt = (struct cmdq_pkt *)data.data;
+	struct cmdq_task_cb *cb = &pkt->cb;
+	struct cmdq_client *client = (struct cmdq_client *)pkt->cl;
+
+	if (client->timeout_ms != CMDQ_NO_TIMEOUT) {
+		unsigned long flags = 0;
+
+		spin_lock_irqsave(&client->lock, flags);
+		if (--client->pkt_cnt == 0)
+			del_timer(&client->timer);
+		else
+			mod_timer(&client->timer, jiffies +
+				  msecs_to_jiffies(client->timeout_ms));
+		spin_unlock_irqrestore(&client->lock, flags);
+	}
+
+	dma_sync_single_for_cpu(client->chan->mbox->dev, pkt->pa_base,
+				pkt->cmd_buf_size, DMA_TO_DEVICE);
+	if (cb->cb) {
+		data.data = cb->data;
+		cb->cb(data);
+	}
+}
+
+int cmdq_pkt_flush_async(struct cmdq_pkt *pkt, cmdq_async_flush_cb cb,
+			 void *data)
+{
+	int err;
+	unsigned long flags = 0;
+	struct cmdq_client *client = (struct cmdq_client *)pkt->cl;
+
+	err = cmdq_pkt_finalize(pkt);
+	if (err < 0)
+		return err;
+
+	pkt->cb.cb = cb;
+	pkt->cb.data = data;
+	pkt->async_cb.cb = cmdq_pkt_flush_async_cb;
+	pkt->async_cb.data = pkt;
+
+	dma_sync_single_for_device(client->chan->mbox->dev, pkt->pa_base,
+				   pkt->cmd_buf_size, DMA_TO_DEVICE);
+
+	if (client->timeout_ms != CMDQ_NO_TIMEOUT) {
+		spin_lock_irqsave(&client->lock, flags);
+		if (client->pkt_cnt++ == 0)
+			mod_timer(&client->timer, jiffies +
+				  msecs_to_jiffies(client->timeout_ms));
+		spin_unlock_irqrestore(&client->lock, flags);
+	}
+
+	mbox_send_message(client->chan, pkt);
+	/* We can send next packet immediately, so just call txdone. */
+	mbox_client_txdone(client->chan, 0);
+
+	return 0;
+}
+EXPORT_SYMBOL(cmdq_pkt_flush_async);
+
+struct cmdq_flush_completion {
+	struct completion cmplt;
+	bool err;
+};
+
+static void cmdq_pkt_flush_cb(struct cmdq_cb_data data)
+{
+	struct cmdq_flush_completion *cmplt;
+
+	cmplt = (struct cmdq_flush_completion *)data.data;
+	if (data.sta != CMDQ_CB_NORMAL)
+		cmplt->err = true;
+	else
+		cmplt->err = false;
+	complete(&cmplt->cmplt);
+}
+
+int cmdq_pkt_flush(struct cmdq_pkt *pkt)
+{
+	struct cmdq_flush_completion cmplt;
+	int err;
+
+	init_completion(&cmplt.cmplt);
+	err = cmdq_pkt_flush_async(pkt, cmdq_pkt_flush_cb, &cmplt);
+	if (err < 0)
+		return err;
+	wait_for_completion(&cmplt.cmplt);
+
+	return cmplt.err ? -EFAULT : 0;
+}
+EXPORT_SYMBOL(cmdq_pkt_flush);
+
+MODULE_LICENSE("GPL v2");

drivers/soc/qcom/Kconfig

@@ -75,11 +75,6 @@ config QCOM_QMI_HELPERS
 	tristate
 	depends on ARCH_QCOM || COMPILE_TEST
 	depends on NET
-	help
-	  Helper library for handling QMI encoded messages.  QMI encoded
-	  messages are used in communication between the majority of QRTR
-	  clients and this helpers provide the common functionality needed for
-	  doing this from a kernel driver.
 
 config QCOM_RMTFS_MEM
 	tristate "Qualcomm Remote Filesystem memory driver"

drivers/soc/qcom/cmd-db.c

@@ -101,8 +101,7 @@ static bool cmd_db_magic_matches(const struct cmd_db_header *header)
 
 static struct cmd_db_header *cmd_db_header;
 
-
-static inline void *rsc_to_entry_header(struct rsc_hdr *hdr)
+static inline const void *rsc_to_entry_header(const struct rsc_hdr *hdr)
 {
 	u16 offset = le16_to_cpu(hdr->header_offset);
 
@@ -110,7 +109,7 @@ static inline void *rsc_to_entry_header(struct rsc_hdr *hdr)
 }
 
 static inline void *
-rsc_offset(struct rsc_hdr *hdr, struct entry_header *ent)
+rsc_offset(const struct rsc_hdr *hdr, const struct entry_header *ent)
 {
 	u16 offset = le16_to_cpu(hdr->data_offset);
 	u16 loffset = le16_to_cpu(ent->offset);
@@ -134,11 +133,11 @@ int cmd_db_ready(void)
 }
 EXPORT_SYMBOL(cmd_db_ready);
 
-static int cmd_db_get_header(const char *id, struct entry_header *eh,
-			     struct rsc_hdr *rh)
+static int cmd_db_get_header(const char *id, const struct entry_header **eh,
+			     const struct rsc_hdr **rh)
 {
-	struct rsc_hdr *rsc_hdr;
-	struct entry_header *ent;
+	const struct rsc_hdr *rsc_hdr;
+	const struct entry_header *ent;
 	int ret, i, j;
 	u8 query[8];
 
@@ -146,9 +145,6 @@ static int cmd_db_get_header(const char *id, struct entry_header *eh,
 	if (ret)
 		return ret;
 
-	if (!eh || !rh)
-		return -EINVAL;
-
 	/* Pad out query string to same length as in DB */
 	strncpy(query, id, sizeof(query));
 
@@ -159,16 +155,15 @@ static int cmd_db_get_header(const char *id, struct entry_header *eh,
 
 		ent = rsc_to_entry_header(rsc_hdr);
 		for (j = 0; j < le16_to_cpu(rsc_hdr->cnt); j++, ent++) {
-			if (memcmp(ent->id, query, sizeof(ent->id)) == 0)
-				break;
-		}
-
-		if (j < le16_to_cpu(rsc_hdr->cnt)) {
-			memcpy(eh, ent, sizeof(*ent));
-			memcpy(rh, rsc_hdr, sizeof(*rh));
+			if (memcmp(ent->id, query, sizeof(ent->id)) == 0) {
+				if (eh)
+					*eh = ent;
+				if (rh)
+					*rh = rsc_hdr;
 				return 0;
 			}
 		}
+	}
 
 	return -ENODEV;
 }
@@ -186,68 +181,39 @@ static int cmd_db_get_header(const char *id, struct entry_header *eh,
 u32 cmd_db_read_addr(const char *id)
 {
 	int ret;
-	struct entry_header ent;
-	struct rsc_hdr rsc_hdr;
+	const struct entry_header *ent;
 
-	ret = cmd_db_get_header(id, &ent, &rsc_hdr);
+	ret = cmd_db_get_header(id, &ent, NULL);
 
-	return ret < 0 ? 0 : le32_to_cpu(ent.addr);
+	return ret < 0 ? 0 : le32_to_cpu(ent->addr);
 }
 EXPORT_SYMBOL(cmd_db_read_addr);
 
 /**
  * cmd_db_read_aux_data() - Query command db for aux data.
  *
- *  @id: Resource to retrieve AUX Data on.
- *  @data: Data buffer to copy returned aux data to. Returns size on NULL
- *  @len: Caller provides size of data buffer passed in.
+ *  @id: Resource to retrieve AUX Data on
+ *  @len: size of data buffer returned
  *
- *  Return: size of data on success, errno otherwise
+ *  Return: pointer to data on success, error pointer otherwise
  */
-int cmd_db_read_aux_data(const char *id, u8 *data, size_t len)
+const void *cmd_db_read_aux_data(const char *id, size_t *len)
 {
 	int ret;
-	struct entry_header ent;
-	struct rsc_hdr rsc_hdr;
-	u16 ent_len;
-
-	if (!data)
-		return -EINVAL;
+	const struct entry_header *ent;
+	const struct rsc_hdr *rsc_hdr;
 
 	ret = cmd_db_get_header(id, &ent, &rsc_hdr);
 	if (ret)
-		return ret;
-
-	ent_len = le16_to_cpu(ent.len);
-	if (len < ent_len)
-		return -EINVAL;
+		return ERR_PTR(ret);
 
-	len = min_t(u16, ent_len, len);
-	memcpy(data, rsc_offset(&rsc_hdr, &ent), len);
+	if (len)
+		*len = le16_to_cpu(ent->len);
 
-	return len;
+	return rsc_offset(rsc_hdr, ent);
 }
 EXPORT_SYMBOL(cmd_db_read_aux_data);
 
-/**
- * cmd_db_read_aux_data_len - Get the length of the auxiliary data stored in DB.
- *
- * @id: Resource to retrieve AUX Data.
- *
- * Return: size on success, 0 on error
- */
-size_t cmd_db_read_aux_data_len(const char *id)
-{
-	int ret;
-	struct entry_header ent;
-	struct rsc_hdr rsc_hdr;
-
-	ret = cmd_db_get_header(id, &ent, &rsc_hdr);
-
-	return ret < 0 ? 0 : le16_to_cpu(ent.len);
-}
-EXPORT_SYMBOL(cmd_db_read_aux_data_len);
-
 /**
  * cmd_db_read_slave_id - Get the slave ID for a given resource address
  *
@@ -258,15 +224,14 @@ EXPORT_SYMBOL(cmd_db_read_aux_data_len);
 enum cmd_db_hw_type cmd_db_read_slave_id(const char *id)
 {
 	int ret;
-	struct entry_header ent;
-	struct rsc_hdr rsc_hdr;
+	const struct entry_header *ent;
 	u32 addr;
 
-	ret = cmd_db_get_header(id, &ent, &rsc_hdr);
+	ret = cmd_db_get_header(id, &ent, NULL);
 	if (ret < 0)
 		return CMD_DB_HW_INVALID;
 
-	addr = le32_to_cpu(ent.addr);
+	addr = le32_to_cpu(ent->addr);
 	return (addr >> SLAVE_ID_SHIFT) & SLAVE_ID_MASK;
 }
 EXPORT_SYMBOL(cmd_db_read_slave_id);

drivers/soc/qcom/llcc-slice.c

@@ -95,6 +95,7 @@ EXPORT_SYMBOL_GPL(llcc_slice_getd);
  */
 void llcc_slice_putd(struct llcc_slice_desc *desc)
 {
+	if (!IS_ERR_OR_NULL(desc))
 		kfree(desc);
 }
 EXPORT_SYMBOL_GPL(llcc_slice_putd);
@@ -142,6 +143,9 @@ int llcc_slice_activate(struct llcc_slice_desc *desc)
 	int ret;
 	u32 act_ctrl_val;
 
+	if (IS_ERR_OR_NULL(desc))
+		return -EINVAL;
+
 	mutex_lock(&drv_data->lock);
 	if (test_bit(desc->slice_id, drv_data->bitmap)) {
 		mutex_unlock(&drv_data->lock);
@@ -176,6 +180,9 @@ int llcc_slice_deactivate(struct llcc_slice_desc *desc)
 	u32 act_ctrl_val;
 	int ret;
 
+	if (IS_ERR_OR_NULL(desc))
+		return -EINVAL;
+
 	mutex_lock(&drv_data->lock);
 	if (!test_bit(desc->slice_id, drv_data->bitmap)) {
 		mutex_unlock(&drv_data->lock);
@@ -203,6 +210,9 @@ EXPORT_SYMBOL_GPL(llcc_slice_deactivate);
  */
 int llcc_get_slice_id(struct llcc_slice_desc *desc)
 {
+	if (IS_ERR_OR_NULL(desc))
+		return -EINVAL;
+
 	return desc->slice_id;
 }
 EXPORT_SYMBOL_GPL(llcc_get_slice_id);
@@ -213,6 +223,9 @@ EXPORT_SYMBOL_GPL(llcc_get_slice_id);
  */
 size_t llcc_get_slice_size(struct llcc_slice_desc *desc)
 {
+	if (IS_ERR_OR_NULL(desc))
+		return 0;
+
 	return desc->slice_size;
 }
 EXPORT_SYMBOL_GPL(llcc_get_slice_size);
@@ -360,5 +373,5 @@ int qcom_llcc_probe(struct platform_device *pdev,
 	return ret;
 }
 EXPORT_SYMBOL_GPL(qcom_llcc_probe);
-
 MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("Qualcomm Last Level Cache Controller");

drivers/soc/qcom/qcom-geni-se.c

@@ -215,6 +215,16 @@ static void geni_se_io_init(void __iomem *base)
 	writel_relaxed(FORCE_DEFAULT, base + GENI_FORCE_DEFAULT_REG);
 }
 
+static void geni_se_irq_clear(struct geni_se *se)
+{
+	writel_relaxed(0, se->base + SE_GSI_EVENT_EN);
+	writel_relaxed(0xffffffff, se->base + SE_GENI_M_IRQ_CLEAR);
+	writel_relaxed(0xffffffff, se->base + SE_GENI_S_IRQ_CLEAR);
+	writel_relaxed(0xffffffff, se->base + SE_DMA_TX_IRQ_CLR);
+	writel_relaxed(0xffffffff, se->base + SE_DMA_RX_IRQ_CLR);
+	writel_relaxed(0xffffffff, se->base + SE_IRQ_EN);
+}
+
 /**
  * geni_se_init() - Initialize the GENI serial engine
  * @se:		Pointer to the concerned serial engine.
@@ -228,6 +238,7 @@ void geni_se_init(struct geni_se *se, u32 rx_wm, u32 rx_rfr)
 {
 	u32 val;
 
+	geni_se_irq_clear(se);
 	geni_se_io_init(se->base);
 	geni_se_io_set_mode(se->base);
 
@@ -249,12 +260,7 @@ static void geni_se_select_fifo_mode(struct geni_se *se)
 	u32 proto = geni_se_read_proto(se);
 	u32 val;
 
-	writel_relaxed(0, se->base + SE_GSI_EVENT_EN);
-	writel_relaxed(0xffffffff, se->base + SE_GENI_M_IRQ_CLEAR);
-	writel_relaxed(0xffffffff, se->base + SE_GENI_S_IRQ_CLEAR);
-	writel_relaxed(0xffffffff, se->base + SE_DMA_TX_IRQ_CLR);
-	writel_relaxed(0xffffffff, se->base + SE_DMA_RX_IRQ_CLR);
-	writel_relaxed(0xffffffff, se->base + SE_IRQ_EN);
+	geni_se_irq_clear(se);
 
 	val = readl_relaxed(se->base + SE_GENI_M_IRQ_EN);
 	if (proto != GENI_SE_UART) {
@@ -277,12 +283,7 @@ static void geni_se_select_dma_mode(struct geni_se *se)
 {
 	u32 val;
 
-	writel_relaxed(0, se->base + SE_GSI_EVENT_EN);
-	writel_relaxed(0xffffffff, se->base + SE_GENI_M_IRQ_CLEAR);
-	writel_relaxed(0xffffffff, se->base + SE_GENI_S_IRQ_CLEAR);
-	writel_relaxed(0xffffffff, se->base + SE_DMA_TX_IRQ_CLR);
-	writel_relaxed(0xffffffff, se->base + SE_DMA_RX_IRQ_CLR);
-	writel_relaxed(0xffffffff, se->base + SE_IRQ_EN);
+	geni_se_irq_clear(se);
 
 	val = readl_relaxed(se->base + SE_GENI_DMA_MODE_EN);
 	val |= GENI_DMA_MODE_EN;

drivers/soc/qcom/qmi_interface.c

@@ -318,7 +318,7 @@ int qmi_txn_init(struct qmi_handle *qmi, struct qmi_txn *txn,
 	txn->dest = c_struct;
 
 	mutex_lock(&qmi->txn_lock);
-	ret = idr_alloc_cyclic(&qmi->txns, txn, 0, INT_MAX, GFP_KERNEL);
+	ret = idr_alloc_cyclic(&qmi->txns, txn, 0, U16_MAX, GFP_KERNEL);
 	if (ret < 0)
 		pr_err("failed to allocate transaction id\n");
 

drivers/soc/qcom/smd-rpm.c

@@ -227,6 +227,7 @@ static const struct of_device_id qcom_smd_rpm_of_match[] = {
 	{ .compatible = "qcom,rpm-msm8974" },
 	{ .compatible = "qcom,rpm-msm8996" },
 	{ .compatible = "qcom,rpm-msm8998" },
+	{ .compatible = "qcom,rpm-qcs404" },
 	{}
 };
 MODULE_DEVICE_TABLE(of, qcom_smd_rpm_of_match);

drivers/soc/renesas/r8a77965-sysc.c

@@ -28,7 +28,6 @@ static const struct rcar_sysc_area r8a77965_areas[] __initconst = {
 	{ "a2vc1",	0x3c0, 1, R8A77965_PD_A2VC1,	R8A77965_PD_A3VC },
 	{ "3dg-a",	0x100, 0, R8A77965_PD_3DG_A,	R8A77965_PD_ALWAYS_ON },
 	{ "3dg-b",	0x100, 1, R8A77965_PD_3DG_B,	R8A77965_PD_3DG_A },
-	{ "a3ir",	0x180, 0, R8A77965_PD_A3IR,	R8A77965_PD_ALWAYS_ON },
 };
 
 const struct rcar_sysc_info r8a77965_sysc_info __initconst = {

drivers/soc/renesas/r8a77970-sysc.c

@@ -20,12 +20,11 @@ static const struct rcar_sysc_area r8a77970_areas[] __initconst = {
 	  PD_CPU_NOCR },
 	{ "ca53-cpu1",	0x200, 1, R8A77970_PD_CA53_CPU1, R8A77970_PD_CA53_SCU,
 	  PD_CPU_NOCR },
-	{ "cr7",	0x240, 0, R8A77970_PD_CR7,	R8A77970_PD_ALWAYS_ON },
 	{ "a3ir",	0x180, 0, R8A77970_PD_A3IR,	R8A77970_PD_ALWAYS_ON },
 	{ "a2ir0",	0x400, 0, R8A77970_PD_A2IR0,	R8A77970_PD_A3IR },
 	{ "a2ir1",	0x400, 1, R8A77970_PD_A2IR1,	R8A77970_PD_A3IR },
-	{ "a2ir2",	0x400, 2, R8A77970_PD_A2IR2,	R8A77970_PD_A3IR },
-	{ "a2ir3",	0x400, 3, R8A77970_PD_A2IR3,	R8A77970_PD_A3IR },
+	{ "a2dp",	0x400, 2, R8A77970_PD_A2DP,	R8A77970_PD_A3IR },
+	{ "a2cn",	0x400, 3, R8A77970_PD_A2CN,	R8A77970_PD_A3IR },
 	{ "a2sc0",	0x400, 4, R8A77970_PD_A2SC0,	R8A77970_PD_A3IR },
 	{ "a2sc1",	0x400, 5, R8A77970_PD_A2SC1,	R8A77970_PD_A3IR },
 };

drivers/soc/renesas/r8a77980-sysc.c

@@ -38,12 +38,12 @@ static const struct rcar_sysc_area r8a77980_areas[] __initconst = {
 	{ "a2sc2",	0x400, 8, R8A77980_PD_A2SC2,	R8A77980_PD_A3IR },
 	{ "a2sc3",	0x400, 9, R8A77980_PD_A2SC3,	R8A77980_PD_A3IR },
 	{ "a2sc4",	0x400, 10, R8A77980_PD_A2SC4,	R8A77980_PD_A3IR },
-	{ "a2pd0",	0x400, 11, R8A77980_PD_A2PD0,	R8A77980_PD_A3IR },
-	{ "a2pd1",	0x400, 12, R8A77980_PD_A2PD1,	R8A77980_PD_A3IR },
+	{ "a2dp0",	0x400, 11, R8A77980_PD_A2DP0,	R8A77980_PD_A3IR },
+	{ "a2dp1",	0x400, 12, R8A77980_PD_A2DP1,	R8A77980_PD_A3IR },
 	{ "a2cn",	0x400, 13, R8A77980_PD_A2CN,	R8A77980_PD_A3IR },
-	{ "a3vip",	0x2c0, 0, R8A77980_PD_A3VIP,	R8A77980_PD_ALWAYS_ON },
-	{ "a3vip1",	0x300, 0, R8A77980_PD_A3VIP1,	R8A77980_PD_A3VIP },
-	{ "a3vip2",	0x280, 0, R8A77980_PD_A3VIP2,	R8A77980_PD_A3VIP },
+	{ "a3vip0",	0x2c0, 0, R8A77980_PD_A3VIP0,	R8A77980_PD_ALWAYS_ON },
+	{ "a3vip1",	0x300, 0, R8A77980_PD_A3VIP1,	R8A77980_PD_ALWAYS_ON },
+	{ "a3vip2",	0x280, 0, R8A77980_PD_A3VIP2,	R8A77980_PD_ALWAYS_ON },
 };
 
 const struct rcar_sysc_info r8a77980_sysc_info __initconst = {

drivers/soc/renesas/r8a77990-sysc.c

@@ -28,19 +28,6 @@ static struct rcar_sysc_area r8a77990_areas[] __initdata = {
 	{ "3dg-b",	0x100, 1, R8A77990_PD_3DG_B,	R8A77990_PD_3DG_A },
 };
 
-static void __init rcar_sysc_fix_parent(struct rcar_sysc_area *areas,
-					unsigned int num_areas, u8 id,
-					int new_parent)
-{
-	unsigned int i;
-
-	for (i = 0; i < num_areas; i++)
-		if (areas[i].isr_bit == id) {
-			areas[i].parent = new_parent;
-			return;
-		}
-}
-
 /* Fixups for R-Car E3 ES1.0 revision */
 static const struct soc_device_attribute r8a77990[] __initconst = {
 	{ .soc_id = "r8a77990", .revision = "ES1.0" },
@@ -50,12 +37,10 @@ static const struct soc_device_attribute r8a77990[] __initconst = {
 static int __init r8a77990_sysc_init(void)
 {
 	if (soc_device_match(r8a77990)) {
-		rcar_sysc_fix_parent(r8a77990_areas,
-				     ARRAY_SIZE(r8a77990_areas),
-				     R8A77990_PD_3DG_A, R8A77990_PD_3DG_B);
-		rcar_sysc_fix_parent(r8a77990_areas,
-				     ARRAY_SIZE(r8a77990_areas),
-				     R8A77990_PD_3DG_B, R8A77990_PD_ALWAYS_ON);
+		/* Fix incorrect 3DG hierarchy */
+		swap(r8a77990_areas[7], r8a77990_areas[8]);
+		r8a77990_areas[7].parent = R8A77990_PD_ALWAYS_ON;
+		r8a77990_areas[8].parent = R8A77990_PD_3DG_B;
 	}
 
 	return 0;

drivers/soc/renesas/rcar-sysc.c

@@ -105,6 +105,15 @@ static int rcar_sysc_power(const struct rcar_sysc_ch *sysc_ch, bool on)
 
 	spin_lock_irqsave(&rcar_sysc_lock, flags);
 
+	/*
+	 * The interrupt source needs to be enabled, but masked, to prevent the
+	 * CPU from receiving it.
+	 */
+	iowrite32(ioread32(rcar_sysc_base + SYSCIMR) | isr_mask,
+		  rcar_sysc_base + SYSCIMR);
+	iowrite32(ioread32(rcar_sysc_base + SYSCIER) | isr_mask,
+		  rcar_sysc_base + SYSCIER);
+
 	iowrite32(isr_mask, rcar_sysc_base + SYSCISCR);
 
 	/* Submit power shutoff or resume request until it was accepted */
@@ -146,16 +155,6 @@ static int rcar_sysc_power(const struct rcar_sysc_ch *sysc_ch, bool on)
 	return ret;
 }
 
-static int rcar_sysc_power_down(const struct rcar_sysc_ch *sysc_ch)
-{
-	return rcar_sysc_power(sysc_ch, false);
-}
-
-static int rcar_sysc_power_up(const struct rcar_sysc_ch *sysc_ch)
-{
-	return rcar_sysc_power(sysc_ch, true);
-}
-
 static bool rcar_sysc_power_is_off(const struct rcar_sysc_ch *sysc_ch)
 {
 	unsigned int st;
@@ -184,7 +183,7 @@ static int rcar_sysc_pd_power_off(struct generic_pm_domain *genpd)
 	struct rcar_sysc_pd *pd = to_rcar_pd(genpd);
 
 	pr_debug("%s: %s\n", __func__, genpd->name);
-	return rcar_sysc_power_down(&pd->ch);
+	return rcar_sysc_power(&pd->ch, false);
 }
 
 static int rcar_sysc_pd_power_on(struct generic_pm_domain *genpd)
@@ -192,7 +191,7 @@ static int rcar_sysc_pd_power_on(struct generic_pm_domain *genpd)
 	struct rcar_sysc_pd *pd = to_rcar_pd(genpd);
 
 	pr_debug("%s: %s\n", __func__, genpd->name);
-	return rcar_sysc_power_up(&pd->ch);
+	return rcar_sysc_power(&pd->ch, true);
 }
 
 static bool has_cpg_mstp;
@@ -252,7 +251,7 @@ static int __init rcar_sysc_pd_setup(struct rcar_sysc_pd *pd)
 		goto finalize;
 	}
 
-	rcar_sysc_power_up(&pd->ch);
+	rcar_sysc_power(&pd->ch, true);
 
 finalize:
 	error = pm_genpd_init(genpd, gov, false);
@@ -334,7 +333,6 @@ static int __init rcar_sysc_pd_init(void)
 	const struct of_device_id *match;
 	struct rcar_pm_domains *domains;
 	struct device_node *np;
-	u32 syscier, syscimr;
 	void __iomem *base;
 	unsigned int i;
 	int error;
@@ -373,27 +371,6 @@ static int __init rcar_sysc_pd_init(void)
 	domains->onecell_data.num_domains = ARRAY_SIZE(domains->domains);
 	rcar_sysc_onecell_data = &domains->onecell_data;
 
-	for (i = 0, syscier = 0; i < info->num_areas; i++)
-		syscier |= BIT(info->areas[i].isr_bit);
-
-	/*
-	 * Mask all interrupt sources to prevent the CPU from receiving them.
-	 * Make sure not to clear reserved bits that were set before.
-	 */
-	syscimr = ioread32(base + SYSCIMR);
-	syscimr |= syscier;
-	pr_debug("%pOF: syscimr = 0x%08x\n", np, syscimr);
-	iowrite32(syscimr, base + SYSCIMR);
-
-	/*
-	 * SYSC needs all interrupt sources enabled to control power.
-	 */
-	pr_debug("%pOF: syscier = 0x%08x\n", np, syscier);
-	iowrite32(syscier, base + SYSCIER);
-
-	/*
-	 * First, create all PM domains
-	 */
 	for (i = 0; i < info->num_areas; i++) {
 		const struct rcar_sysc_area *area = &info->areas[i];
 		struct rcar_sysc_pd *pd;
@@ -421,22 +398,17 @@ static int __init rcar_sysc_pd_init(void)
 			goto out_put;
 
 		domains->domains[area->isr_bit] = &pd->genpd;
-	}
 
-	/*
-	 * Second, link all PM domains to their parents
-	 */
-	for (i = 0; i < info->num_areas; i++) {
-		const struct rcar_sysc_area *area = &info->areas[i];
-
-		if (!area->name || area->parent < 0)
+		if (area->parent < 0)
 			continue;
 
 		error = pm_genpd_add_subdomain(domains->domains[area->parent],
-					       domains->domains[area->isr_bit]);
-		if (error)
+					       &pd->genpd);
+		if (error) {
 			pr_warn("Failed to add PM subdomain %s to parent %u\n",
 				area->name, area->parent);
+			goto out_put;
+		}
 	}
 
 	error = of_genpd_add_provider_onecell(np, &domains->onecell_data);
@@ -478,8 +450,7 @@ static int rcar_sysc_power_cpu(unsigned int idx, bool on)
 		if (!(pd->flags & PD_CPU) || pd->ch.chan_bit != idx)
 			continue;
 
-		return on ? rcar_sysc_power_up(&pd->ch)
-			  : rcar_sysc_power_down(&pd->ch);
+		return rcar_sysc_power(&pd->ch, on);
 	}
 
 	return -ENOENT;

drivers/soc/rockchip/pm_domains.c

@@ -21,7 +21,9 @@
 #include <linux/mfd/syscon.h>
 #include <dt-bindings/power/px30-power.h>
 #include <dt-bindings/power/rk3036-power.h>
+#include <dt-bindings/power/rk3066-power.h>
 #include <dt-bindings/power/rk3128-power.h>
+#include <dt-bindings/power/rk3188-power.h>
 #include <dt-bindings/power/rk3228-power.h>
 #include <dt-bindings/power/rk3288-power.h>
 #include <dt-bindings/power/rk3328-power.h>
@@ -737,6 +739,14 @@ static const struct rockchip_domain_info rk3036_pm_domains[] = {
 	[RK3036_PD_SYS]		= DOMAIN_RK3036(8, 22, 29, false),
 };
 
+static const struct rockchip_domain_info rk3066_pm_domains[] = {
+	[RK3066_PD_GPU]		= DOMAIN(9, 9, 3, 24, 29, false),
+	[RK3066_PD_VIDEO]	= DOMAIN(8, 8, 4, 23, 28, false),
+	[RK3066_PD_VIO]		= DOMAIN(7, 7, 5, 22, 27, false),
+	[RK3066_PD_PERI]	= DOMAIN(6, 6, 2, 25, 30, false),
+	[RK3066_PD_CPU]		= DOMAIN(-1, 5, 1, 26, 31, false),
+};
+
 static const struct rockchip_domain_info rk3128_pm_domains[] = {
 	[RK3128_PD_CORE]	= DOMAIN_RK3288(0, 0, 4, false),
 	[RK3128_PD_MSCH]	= DOMAIN_RK3288(-1, -1, 6, true),
@@ -745,6 +755,14 @@ static const struct rockchip_domain_info rk3128_pm_domains[] = {
 	[RK3128_PD_GPU]		= DOMAIN_RK3288(1, 1, 3, false),
 };
 
+static const struct rockchip_domain_info rk3188_pm_domains[] = {
+	[RK3188_PD_GPU]		= DOMAIN(9, 9, 3, 24, 29, false),
+	[RK3188_PD_VIDEO]	= DOMAIN(8, 8, 4, 23, 28, false),
+	[RK3188_PD_VIO]		= DOMAIN(7, 7, 5, 22, 27, false),
+	[RK3188_PD_PERI]	= DOMAIN(6, 6, 2, 25, 30, false),
+	[RK3188_PD_CPU]		= DOMAIN(5, 5, 1, 26, 31, false),
+};
+
 static const struct rockchip_domain_info rk3228_pm_domains[] = {
 	[RK3228_PD_CORE]	= DOMAIN_RK3036(0, 0, 16, true),
 	[RK3228_PD_MSCH]	= DOMAIN_RK3036(1, 1, 17, true),
@@ -846,6 +864,17 @@ static const struct rockchip_pmu_info rk3036_pmu = {
 	.domain_info = rk3036_pm_domains,
 };
 
+static const struct rockchip_pmu_info rk3066_pmu = {
+	.pwr_offset = 0x08,
+	.status_offset = 0x0c,
+	.req_offset = 0x38, /* PMU_MISC_CON1 */
+	.idle_offset = 0x0c,
+	.ack_offset = 0x0c,
+
+	.num_domains = ARRAY_SIZE(rk3066_pm_domains),
+	.domain_info = rk3066_pm_domains,
+};
+
 static const struct rockchip_pmu_info rk3128_pmu = {
 	.pwr_offset = 0x04,
 	.status_offset = 0x08,
@@ -857,6 +886,17 @@ static const struct rockchip_pmu_info rk3128_pmu = {
 	.domain_info = rk3128_pm_domains,
 };
 
+static const struct rockchip_pmu_info rk3188_pmu = {
+	.pwr_offset = 0x08,
+	.status_offset = 0x0c,
+	.req_offset = 0x38, /* PMU_MISC_CON1 */
+	.idle_offset = 0x0c,
+	.ack_offset = 0x0c,
+
+	.num_domains = ARRAY_SIZE(rk3188_pm_domains),
+	.domain_info = rk3188_pm_domains,
+};
+
 static const struct rockchip_pmu_info rk3228_pmu = {
 	.req_offset = 0x40c,
 	.idle_offset = 0x488,
@@ -948,10 +988,18 @@ static const struct of_device_id rockchip_pm_domain_dt_match[] = {
 		.compatible = "rockchip,rk3036-power-controller",
 		.data = (void *)&rk3036_pmu,
 	},
+	{
+		.compatible = "rockchip,rk3066-power-controller",
+		.data = (void *)&rk3066_pmu,
+	},
 	{
 		.compatible = "rockchip,rk3128-power-controller",
 		.data = (void *)&rk3128_pmu,
 	},
+	{
+		.compatible = "rockchip,rk3188-power-controller",
+		.data = (void *)&rk3188_pmu,
+	},
 	{
 		.compatible = "rockchip,rk3228-power-controller",
 		.data = (void *)&rk3228_pmu,

drivers/soc/sunxi/sunxi_sram.c

@@ -155,17 +155,7 @@ static int sunxi_sram_show(struct seq_file *s, void *data)
 	return 0;
 }
 
-static int sunxi_sram_open(struct inode *inode, struct file *file)
-{
-	return single_open(file, sunxi_sram_show, inode->i_private);
-}
-
-static const struct file_operations sunxi_sram_fops = {
-	.open = sunxi_sram_open,
-	.read = seq_read,
-	.llseek = seq_lseek,
-	.release = single_release,
-};
+DEFINE_SHOW_ATTRIBUTE(sunxi_sram);
 
 static inline struct sunxi_sram_desc *to_sram_desc(const struct sunxi_sram_data *data)
 {
@@ -300,6 +290,10 @@ static const struct sunxi_sramc_variant sun4i_a10_sramc_variant = {
 	/* Nothing special */
 };
 
+static const struct sunxi_sramc_variant sun8i_h3_sramc_variant = {
+	.has_emac_clock = true,
+};
+
 static const struct sunxi_sramc_variant sun50i_a64_sramc_variant = {
 	.has_emac_clock = true,
 };
@@ -379,7 +373,7 @@ static const struct of_device_id sunxi_sram_dt_match[] = {
 	},
 	{
 		.compatible = "allwinner,sun8i-h3-system-control",
-		.data = &sun4i_a10_sramc_variant,
+		.data = &sun8i_h3_sramc_variant,
 	},
 	{
 		.compatible = "allwinner,sun50i-a64-sram-controller",
@@ -389,6 +383,10 @@ static const struct of_device_id sunxi_sram_dt_match[] = {
 		.compatible = "allwinner,sun50i-a64-system-control",
 		.data = &sun50i_a64_sramc_variant,
 	},
+	{
+		.compatible = "allwinner,sun50i-h5-system-control",
+		.data = &sun50i_a64_sramc_variant,
+	},
 	{ },
 };
 MODULE_DEVICE_TABLE(of, sunxi_sram_dt_match);

drivers/soc/tegra/common.c

@@ -22,11 +22,15 @@ static const struct of_device_id tegra_machine_match[] = {
 
 bool soc_is_tegra(void)
 {
+	const struct of_device_id *match;
 	struct device_node *root;
 
 	root = of_find_node_by_path("/");
 	if (!root)
 		return false;
 
-	return of_match_node(tegra_machine_match, root) != NULL;
+	match = of_match_node(tegra_machine_match, root);
+	of_node_put(root);
+
+	return match != NULL;
 }

drivers/soc/ti/wkup_m3_ipc.c

@@ -57,6 +57,7 @@
 static struct wkup_m3_ipc *m3_ipc_state;
 
 static const struct wkup_m3_wakeup_src wakeups[] = {
+	{.irq_nr = 16,	.src = "PRCM"},
 	{.irq_nr = 35,	.src = "USB0_PHY"},
 	{.irq_nr = 36,	.src = "USB1_PHY"},
 	{.irq_nr = 40,	.src = "I2C0"},

include/dt-bindings/power/imx8mq-power.h

+/* SPDX-License-Identifier: (GPL-2.0 OR MIT) */
+/*
+ *  Copyright (C) 2018 Pengutronix, Lucas Stach <kernel@pengutronix.de>
+ */
+
+#ifndef __DT_BINDINGS_IMX8MQ_POWER_H__
+#define __DT_BINDINGS_IMX8MQ_POWER_H__
+
+#define IMX8M_POWER_DOMAIN_MIPI		0
+#define IMX8M_POWER_DOMAIN_PCIE1	1
+#define IMX8M_POWER_DOMAIN_USB_OTG1	2
+#define IMX8M_POWER_DOMAIN_USB_OTG2	3
+#define IMX8M_POWER_DOMAIN_DDR1		4
+#define IMX8M_POWER_DOMAIN_GPU		5
+#define IMX8M_POWER_DOMAIN_VPU		6
+#define IMX8M_POWER_DOMAIN_DISP		7
+#define IMX8M_POWER_DOMAIN_MIPI_CSI1	8
+#define IMX8M_POWER_DOMAIN_MIPI_CSI2	9
+#define IMX8M_POWER_DOMAIN_PCIE2	10
+
+#endif

include/dt-bindings/power/r8a77970-sysc.h

@@ -16,13 +16,12 @@
 
 #define R8A77970_PD_CA53_CPU0		 5
 #define R8A77970_PD_CA53_CPU1		 6
-#define R8A77970_PD_CR7			13
 #define R8A77970_PD_CA53_SCU		21
 #define R8A77970_PD_A2IR0		23
 #define R8A77970_PD_A3IR		24
 #define R8A77970_PD_A2IR1		27
-#define R8A77970_PD_A2IR2		28
-#define R8A77970_PD_A2IR3		29
+#define R8A77970_PD_A2DP		28
+#define R8A77970_PD_A2CN		29
 #define R8A77970_PD_A2SC0		30
 #define R8A77970_PD_A2SC1		31
 

include/dt-bindings/power/r8a77980-sysc.h

@@ -15,14 +15,14 @@
 #define R8A77980_PD_A2SC2		0
 #define R8A77980_PD_A2SC3		1
 #define R8A77980_PD_A2SC4		2
-#define R8A77980_PD_A2PD0		3
-#define R8A77980_PD_A2PD1		4
+#define R8A77980_PD_A2DP0		3
+#define R8A77980_PD_A2DP1		4
 #define R8A77980_PD_CA53_CPU0		5
 #define R8A77980_PD_CA53_CPU1		6
 #define R8A77980_PD_CA53_CPU2		7
 #define R8A77980_PD_CA53_CPU3		8
 #define R8A77980_PD_A2CN		10
-#define R8A77980_PD_A3VIP		11
+#define R8A77980_PD_A3VIP0		11
 #define R8A77980_PD_A2IR5		12
 #define R8A77980_PD_CR7			13
 #define R8A77980_PD_A2IR4		15

include/dt-bindings/power/raspberrypi-power.h

+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  Copyright © 2015 Broadcom
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #ifndef _DT_BINDINGS_ARM_BCM2835_RPI_POWER_H

include/dt-bindings/power/rk3066-power.h

+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __DT_BINDINGS_POWER_RK3066_POWER_H__
+#define __DT_BINDINGS_POWER_RK3066_POWER_H__
+
+/* VD_CORE */
+#define RK3066_PD_A9_0		0
+#define RK3066_PD_A9_1		1
+#define RK3066_PD_DBG		4
+#define RK3066_PD_SCU		5
+
+/* VD_LOGIC */
+#define RK3066_PD_VIDEO		6
+#define RK3066_PD_VIO		7
+#define RK3066_PD_GPU		8
+#define RK3066_PD_PERI		9
+#define RK3066_PD_CPU		10
+#define RK3066_PD_ALIVE		11
+
+/* VD_PMU */
+#define RK3066_PD_RTC		12
+
+#endif

include/dt-bindings/power/rk3188-power.h

+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __DT_BINDINGS_POWER_RK3188_POWER_H__
+#define __DT_BINDINGS_POWER_RK3188_POWER_H__
+
+/* VD_CORE */
+#define RK3188_PD_A9_0		0
+#define RK3188_PD_A9_1		1
+#define RK3188_PD_A9_2		2
+#define RK3188_PD_A9_3		3
+#define RK3188_PD_DBG		4
+#define RK3188_PD_SCU		5
+
+/* VD_LOGIC */
+#define RK3188_PD_VIDEO		6
+#define RK3188_PD_VIO		7
+#define RK3188_PD_GPU		8
+#define RK3188_PD_PERI		9
+#define RK3188_PD_CPU		10
+#define RK3188_PD_ALIVE		11
+
+/* VD_PMU */
+#define RK3188_PD_RTC		12
+
+#endif

include/linux/dma/pxa-dma.h

@@ -23,15 +23,4 @@ struct pxad_param {
 	enum pxad_chan_prio prio;
 };
 
-struct dma_chan;
-
-#ifdef CONFIG_PXA_DMA
-bool pxad_filter_fn(struct dma_chan *chan, void *param);
-#else
-static inline bool pxad_filter_fn(struct dma_chan *chan, void *param)
-{
-	return false;
-}
-#endif
-
 #endif /* _PXA_DMA_H_ */

include/linux/firmware/imx/sci.h

@@ -14,4 +14,5 @@
 #include <linux/firmware/imx/types.h>
 
 #include <linux/firmware/imx/svc/misc.h>
+#include <linux/firmware/imx/svc/pm.h>
 #endif /* _SC_SCI_H */

include/linux/firmware/imx/svc/pm.h

+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright (C) 2016 Freescale Semiconductor, Inc.
+ * Copyright 2017-2018 NXP
+ *
+ * Header file containing the public API for the System Controller (SC)
+ * Power Management (PM) function. This includes functions for power state
+ * control, clock control, reset control, and wake-up event control.
+ *
+ * PM_SVC (SVC) Power Management Service
+ *
+ * Module for the Power Management (PM) service.
+ */
+
+#ifndef _SC_PM_API_H
+#define _SC_PM_API_H
+
+#include <linux/firmware/imx/sci.h>
+
+/*
+ * This type is used to indicate RPC PM function calls.
+ */
+enum imx_sc_pm_func {
+	IMX_SC_PM_FUNC_UNKNOWN = 0,
+	IMX_SC_PM_FUNC_SET_SYS_POWER_MODE = 19,
+	IMX_SC_PM_FUNC_SET_PARTITION_POWER_MODE = 1,
+	IMX_SC_PM_FUNC_GET_SYS_POWER_MODE = 2,
+	IMX_SC_PM_FUNC_SET_RESOURCE_POWER_MODE = 3,
+	IMX_SC_PM_FUNC_GET_RESOURCE_POWER_MODE = 4,
+	IMX_SC_PM_FUNC_REQ_LOW_POWER_MODE = 16,
+	IMX_SC_PM_FUNC_SET_CPU_RESUME_ADDR = 17,
+	IMX_SC_PM_FUNC_REQ_SYS_IF_POWER_MODE = 18,
+	IMX_SC_PM_FUNC_SET_CLOCK_RATE = 5,
+	IMX_SC_PM_FUNC_GET_CLOCK_RATE = 6,
+	IMX_SC_PM_FUNC_CLOCK_ENABLE = 7,
+	IMX_SC_PM_FUNC_SET_CLOCK_PARENT = 14,
+	IMX_SC_PM_FUNC_GET_CLOCK_PARENT = 15,
+	IMX_SC_PM_FUNC_RESET = 13,
+	IMX_SC_PM_FUNC_RESET_REASON = 10,
+	IMX_SC_PM_FUNC_BOOT = 8,
+	IMX_SC_PM_FUNC_REBOOT = 9,
+	IMX_SC_PM_FUNC_REBOOT_PARTITION = 12,
+	IMX_SC_PM_FUNC_CPU_START = 11,
+};
+
+/*
+ * Defines for ALL parameters
+ */
+#define IMX_SC_PM_CLK_ALL		UINT8_MAX	/* All clocks */
+
+/*
+ * Defines for SC PM Power Mode
+ */
+#define IMX_SC_PM_PW_MODE_OFF	0	/* Power off */
+#define IMX_SC_PM_PW_MODE_STBY	1	/* Power in standby */
+#define IMX_SC_PM_PW_MODE_LP	2	/* Power in low-power */
+#define IMX_SC_PM_PW_MODE_ON	3	/* Power on */
+
+/*
+ * Defines for SC PM CLK
+ */
+#define IMX_SC_PM_CLK_SLV_BUS	0	/* Slave bus clock */
+#define IMX_SC_PM_CLK_MST_BUS	1	/* Master bus clock */
+#define IMX_SC_PM_CLK_PER	2	/* Peripheral clock */
+#define IMX_SC_PM_CLK_PHY	3	/* Phy clock */
+#define IMX_SC_PM_CLK_MISC	4	/* Misc clock */
+#define IMX_SC_PM_CLK_MISC0	0	/* Misc 0 clock */
+#define IMX_SC_PM_CLK_MISC1	1	/* Misc 1 clock */
+#define IMX_SC_PM_CLK_MISC2	2	/* Misc 2 clock */
+#define IMX_SC_PM_CLK_MISC3	3	/* Misc 3 clock */
+#define IMX_SC_PM_CLK_MISC4	4	/* Misc 4 clock */
+#define IMX_SC_PM_CLK_CPU	2	/* CPU clock */
+#define IMX_SC_PM_CLK_PLL	4	/* PLL */
+#define IMX_SC_PM_CLK_BYPASS	4	/* Bypass clock */
+
+/*
+ * Defines for SC PM CLK Parent
+ */
+#define IMX_SC_PM_PARENT_XTAL	0	/* Parent is XTAL. */
+#define IMX_SC_PM_PARENT_PLL0	1	/* Parent is PLL0 */
+#define IMX_SC_PM_PARENT_PLL1	2	/* Parent is PLL1 or PLL0/2 */
+#define IMX_SC_PM_PARENT_PLL2	3	/* Parent in PLL2 or PLL0/4 */
+#define IMX_SC_PM_PARENT_BYPS	4	/* Parent is a bypass clock. */
+
+#endif /* _SC_PM_API_H */

include/linux/pl353-smc.h

+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * ARM PL353 SMC Driver Header
+ *
+ * Copyright (C) 2012 - 2018 Xilinx, Inc
+ */
+
+#ifndef __LINUX_PL353_SMC_H
+#define __LINUX_PL353_SMC_H
+
+enum pl353_smc_ecc_mode {
+	PL353_SMC_ECCMODE_BYPASS = 0,
+	PL353_SMC_ECCMODE_APB = 1,
+	PL353_SMC_ECCMODE_MEM = 2
+};
+
+enum pl353_smc_mem_width {
+	PL353_SMC_MEM_WIDTH_8 = 0,
+	PL353_SMC_MEM_WIDTH_16 = 1
+};
+
+u32 pl353_smc_get_ecc_val(int ecc_reg);
+bool pl353_smc_ecc_is_busy(void);
+int pl353_smc_get_nand_int_status_raw(void);
+void pl353_smc_clr_nand_int(void);
+int pl353_smc_set_ecc_mode(enum pl353_smc_ecc_mode mode);
+int pl353_smc_set_ecc_pg_size(unsigned int pg_sz);
+int pl353_smc_set_buswidth(unsigned int bw);
+void pl353_smc_set_cycles(u32 timings[]);
+#endif

include/linux/qcom_scm.h

@@ -67,6 +67,9 @@ extern int qcom_scm_iommu_secure_ptbl_init(u64 addr, u32 size, u32 spare);
 extern int qcom_scm_io_readl(phys_addr_t addr, unsigned int *val);
 extern int qcom_scm_io_writel(phys_addr_t addr, unsigned int val);
 #else
+
+#include <linux/errno.h>
+
 static inline
 int qcom_scm_set_cold_boot_addr(void *entry, const cpumask_t *cpus)
 {

include/linux/soc/qcom/qmi.h

@@ -166,7 +166,7 @@ struct qmi_ops {
 struct qmi_txn {
 	struct qmi_handle *qmi;
 
-	int id;
+	u16 id;
 
 	struct mutex lock;
 	struct completion completion;

include/soc/bcm2835/raspberrypi-firmware.h

+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  Copyright © 2015 Broadcom
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #ifndef __SOC_RASPBERRY_FIRMWARE_H__

include/soc/qcom/cmd-db.h

@@ -18,9 +18,7 @@ enum cmd_db_hw_type {
 #if IS_ENABLED(CONFIG_QCOM_COMMAND_DB)
 u32 cmd_db_read_addr(const char *resource_id);
 
-int cmd_db_read_aux_data(const char *resource_id, u8 *data, size_t len);
-
-size_t cmd_db_read_aux_data_len(const char *resource_id);
+const void *cmd_db_read_aux_data(const char *resource_id, size_t *len);
 
 enum cmd_db_hw_type cmd_db_read_slave_id(const char *resource_id);
 
@@ -29,12 +27,8 @@ int cmd_db_ready(void);
 static inline u32 cmd_db_read_addr(const char *resource_id)
 { return 0; }
 
-static inline int cmd_db_read_aux_data(const char *resource_id, u8 *data,
-				       size_t len)
-{ return -ENODEV; }
-
-static inline size_t cmd_db_read_aux_data_len(const char *resource_id)
-{ return -ENODEV; }
+static inline const void *cmd_db_read_aux_data(const char *resource_id, size_t *len)
+{ return ERR_PTR(-ENODEV); }
 
 static inline enum cmd_db_hw_type cmd_db_read_slave_id(const char *resource_id)
 { return -ENODEV; }

include/soc/tegra/bpmp.h

@@ -129,6 +129,7 @@ int tegra_bpmp_request_mrq(struct tegra_bpmp *bpmp, unsigned int mrq,
 			   tegra_bpmp_mrq_handler_t handler, void *data);
 void tegra_bpmp_free_mrq(struct tegra_bpmp *bpmp, unsigned int mrq,
 			 void *data);
+bool tegra_bpmp_mrq_is_supported(struct tegra_bpmp *bpmp, unsigned int mrq);
 #else
 static inline struct tegra_bpmp *tegra_bpmp_get(struct device *dev)
 {
@@ -164,6 +165,12 @@ static inline void tegra_bpmp_free_mrq(struct tegra_bpmp *bpmp,
 				       unsigned int mrq, void *data)
 {
 }
+
+static inline bool tegra_bpmp_mrq_is_supported(struct tegra_bpmp *bpmp,
+					      unsigned int mrq)
+{
+	return false;
+}
 #endif
 
 #if IS_ENABLED(CONFIG_CLK_TEGRA_BPMP)

include/soc/tegra/fuse.h

@@ -60,7 +60,6 @@ struct tegra_sku_info {
 
 u32 tegra_read_straps(void);
 u32 tegra_read_ram_code(void);
-u32 tegra_read_chipid(void);
 int tegra_fuse_readl(unsigned long offset, u32 *value);
 
 extern struct tegra_sku_info tegra_sku_info;