Merge branch 'omap-for-v5.6/sdma' into omap-for-v5.6/ti-sysc-drop-pdata

arch/arm/boot/dts/dra7-l4.dtsi

@@ -186,7 +186,6 @@ cm_core_clockdomains: clockdomains {
 
 		target-module@56000 {			/* 0x4a056000, ap 9 02.0 */
 			compatible = "ti,sysc-omap2", "ti,sysc";
-			ti,hwmods = "dma_system";
 			reg = <0x56000 0x4>,
 			      <0x5602c 0x4>,
 			      <0x56028 0x4>;
@@ -212,7 +211,7 @@ SYSC_OMAP2_SOFTRESET |
 			ranges = <0x0 0x56000 0x1000>;
 
 			sdma: dma-controller@0 {
-				compatible = "ti,omap4430-sdma";
+				compatible = "ti,omap4430-sdma", "ti,omap-sdma";
 				reg = <0x0 0x1000>;
 				interrupts = <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>,
 					     <GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>,

arch/arm/boot/dts/omap2.dtsi

@@ -8,6 +8,7 @@
  * kind, whether express or implied.
  */
 
+#include <dt-bindings/bus/ti-sysc.h>
 #include <dt-bindings/gpio/gpio.h>
 #include <dt-bindings/interrupt-controller/irq.h>
 #include <dt-bindings/pinctrl/omap.h>
@@ -79,17 +80,37 @@ intc: interrupt-controller@1 {
 			reg = <0x480FE000 0x1000>;
 		};
 
-		sdma: dma-controller@48056000 {
-			compatible = "ti,omap2430-sdma", "ti,omap2420-sdma";
-			ti,hwmods = "dma";
-			reg = <0x48056000 0x1000>;
-			interrupts = <12>,
-				     <13>,
-				     <14>,
-				     <15>;
-			#dma-cells = <1>;
-			dma-channels = <32>;
-			dma-requests = <64>;
+		target-module@48056000 {
+			compatible = "ti,sysc-omap2", "ti,sysc";
+			reg = <0x48056000 0x4>,
+			      <0x4805602c 0x4>,
+			      <0x48056028 0x4>;
+			reg-names = "rev", "sysc", "syss";
+			ti,sysc-mask = <(SYSC_OMAP2_CLOCKACTIVITY |
+					 SYSC_OMAP2_EMUFREE |
+					 SYSC_OMAP2_SOFTRESET |
+					 SYSC_OMAP2_AUTOIDLE)>;
+			ti,sysc-midle = <SYSC_IDLE_FORCE>,
+					<SYSC_IDLE_NO>,
+					<SYSC_IDLE_SMART>;
+			ti,syss-mask = <1>;
+			clocks = <&core_l3_ck>;
+			clock-names = "fck";
+			#address-cells = <1>;
+			#size-cells = <1>;
+			ranges = <0 0x48056000 0x1000>;
+
+			sdma: dma-controller@0 {
+				compatible = "ti,omap2420-sdma", "ti,omap-sdma";
+				reg = <0 0x1000>;
+				interrupts = <12>,
+					     <13>,
+					     <14>,
+					     <15>;
+				#dma-cells = <1>;
+				dma-channels = <32>;
+				dma-requests = <64>;
+			};
 		};
 
 		i2c1: i2c@48070000 {

arch/arm/boot/dts/omap2430.dtsi

@@ -309,6 +309,10 @@ wd_timer2: wdt@49016000 {
 	};
 };
 
+&sdma {
+	compatible = "ti,omap2430-sdma", "ti,omap-sdma";
+};
+
 &i2c1 {
 	compatible = "ti,omap2430-i2c";
 };

arch/arm/boot/dts/omap3-n900.dts

@@ -482,6 +482,11 @@ &vintdig {
 	regulator-always-on;
 };
 
+/* First two dma channels are reserved on secure omap3 */
+&sdma {
+	dma-channel-mask = <0xfffffffc>;
+};
+
 &twl {
 	twl_audio: audio {
 		compatible = "ti,twl4030-audio";

arch/arm/boot/dts/omap3.dtsi

@@ -206,17 +206,41 @@ intc: interrupt-controller@48200000 {
 			reg = <0x48200000 0x1000>;
 		};
 
-		sdma: dma-controller@48056000 {
-			compatible = "ti,omap3630-sdma", "ti,omap3430-sdma";
-			reg = <0x48056000 0x1000>;
-			interrupts = <12>,
-				     <13>,
-				     <14>,
-				     <15>;
-			#dma-cells = <1>;
-			dma-channels = <32>;
-			dma-requests = <96>;
-			ti,hwmods = "dma";
+		target-module@48056000 {
+			compatible = "ti,sysc-omap2", "ti,sysc";
+			reg = <0x48056000 0x4>,
+			      <0x4805602c 0x4>,
+			      <0x48056028 0x4>;
+			reg-names = "rev", "sysc", "syss";
+			ti,sysc-mask = <(SYSC_OMAP2_CLOCKACTIVITY |
+					 SYSC_OMAP2_EMUFREE |
+					 SYSC_OMAP2_SOFTRESET |
+					 SYSC_OMAP2_AUTOIDLE)>;
+			ti,sysc-midle = <SYSC_IDLE_FORCE>,
+					<SYSC_IDLE_NO>,
+					<SYSC_IDLE_SMART>;
+			ti,sysc-sidle = <SYSC_IDLE_FORCE>,
+					<SYSC_IDLE_NO>,
+					<SYSC_IDLE_SMART>;
+			ti,syss-mask = <1>;
+			/* Domains (V, P, C): core, core_pwrdm, core_l3_clkdm */
+			clocks = <&core_l3_ick>;
+			clock-names = "ick";
+			#address-cells = <1>;
+			#size-cells = <1>;
+			ranges = <0 0x48056000 0x1000>;
+
+			sdma: dma-controller@0 {
+				compatible = "ti,omap3430-sdma", "ti,omap-sdma";
+				reg = <0x0 0x1000>;
+				interrupts = <12>,
+					     <13>,
+					     <14>,
+					     <15>;
+				#dma-cells = <1>;
+				dma-channels = <32>;
+				dma-requests = <96>;
+			};
 		};
 
 		gpio1: gpio@48310000 {

arch/arm/boot/dts/omap36xx.dtsi

@@ -223,6 +223,10 @@ thermal_zones: thermal-zones {
 	};
 };
 
+&sdma {
+	compatible = "ti,omap3630-sdma", "ti,omap-sdma";
+};
+
 /* OMAP3630 needs dss_96m_fck for VENC */
 &venc {
 	clocks = <&dss_tv_fck>, <&dss_96m_fck>;

arch/arm/boot/dts/omap4-l4.dtsi

@@ -136,7 +136,6 @@ cm2_clockdomains: clockdomains {
 
 		target-module@56000 {			/* 0x4a056000, ap 7 0a.0 */
 			compatible = "ti,sysc-omap2", "ti,sysc";
-			ti,hwmods = "dma_system";
 			reg = <0x56000 0x4>,
 			      <0x5602c 0x4>,
 			      <0x56028 0x4>;
@@ -160,7 +159,7 @@ SYSC_OMAP2_SOFTRESET |
 			ranges = <0x0 0x56000 0x1000>;
 
 			sdma: dma-controller@0 {
-				compatible = "ti,omap4430-sdma";
+				compatible = "ti,omap4430-sdma", "ti,omap-sdma";
 				reg = <0x0 0x1000>;
 				interrupts = <GIC_SPI 12 IRQ_TYPE_LEVEL_HIGH>,
 					     <GIC_SPI 13 IRQ_TYPE_LEVEL_HIGH>,

arch/arm/boot/dts/omap5-l4.dtsi

@@ -213,7 +213,6 @@ dwc3: dwc3@10000 {
 
 		target-module@56000 {			/* 0x4a056000, ap 7 02.0 */
 			compatible = "ti,sysc-omap2", "ti,sysc";
-			ti,hwmods = "dma_system";
 			reg = <0x56000 0x4>,
 			      <0x5602c 0x4>,
 			      <0x56028 0x4>;
@@ -237,7 +236,7 @@ SYSC_OMAP2_SOFTRESET |
 			ranges = <0x0 0x56000 0x1000>;
 
 			sdma: dma-controller@0 {
-				compatible = "ti,omap4430-sdma";
+				compatible = "ti,omap4430-sdma", "ti,omap-sdma";
 				reg = <0x0 0x1000>;
 				interrupts = <GIC_SPI 12 IRQ_TYPE_LEVEL_HIGH>,
 					     <GIC_SPI 13 IRQ_TYPE_LEVEL_HIGH>,

arch/arm/mach-omap2/common.h

@@ -345,9 +345,12 @@ static inline int dra7xx_pciess_reset(struct omap_hwmod *oh)
 }
 #endif
 
+struct omap_system_dma_plat_info;
+
 void pdata_quirks_init(const struct of_device_id *);
 void omap_auxdata_legacy_init(struct device *dev);
 void omap_pcs_legacy_init(int irq, void (*rearm)(void));
+extern struct omap_system_dma_plat_info dma_plat_info;
 
 struct omap_sdrc_params;
 extern void omap_sdrc_init(struct omap_sdrc_params *sdrc_cs0,

arch/arm/mach-omap2/dma.c

@@ -30,10 +30,6 @@
 #include <linux/omap-dma.h>
 
 #include "soc.h"
-#include "omap_hwmod.h"
-#include "omap_device.h"
-
-static enum omap_reg_offsets dma_common_ch_end;
 
 static const struct omap_dma_reg reg_map[] = {
 	[REVISION]	= { 0x0000, 0x00, OMAP_DMA_REG_32BIT },
@@ -81,42 +77,6 @@ static const struct omap_dma_reg reg_map[] = {
 	[CCDN]		= { 0x00d8, 0x60, OMAP_DMA_REG_32BIT },
 };
 
-static void __iomem *dma_base;
-static inline void dma_write(u32 val, int reg, int lch)
-{
-	void __iomem *addr = dma_base;
-
-	addr += reg_map[reg].offset;
-	addr += reg_map[reg].stride * lch;
-
-	writel_relaxed(val, addr);
-}
-
-static inline u32 dma_read(int reg, int lch)
-{
-	void __iomem *addr = dma_base;
-
-	addr += reg_map[reg].offset;
-	addr += reg_map[reg].stride * lch;
-
-	return readl_relaxed(addr);
-}
-
-static void omap2_clear_dma(int lch)
-{
-	int i;
-
-	for (i = CSDP; i <= dma_common_ch_end; i += 1)
-		dma_write(0, i, lch);
-}
-
-static void omap2_show_dma_caps(void)
-{
-	u8 revision = dma_read(REVISION, 0) & 0xff;
-	printk(KERN_INFO "OMAP DMA hardware revision %d.%d\n",
-				revision >> 4, revision & 0xf);
-}
-
 static unsigned configure_dma_errata(void)
 {
 	unsigned errata = 0;
@@ -211,82 +171,35 @@ static const struct dma_slave_map omap24xx_sdma_dt_map[] = {
 	{ "musb-hdrc.1.auto", "dmareq5", SDMA_FILTER_PARAM(64) }, /* OMAP2420 only */
 };
 
-static struct omap_system_dma_plat_info dma_plat_info __initdata = {
-	.reg_map	= reg_map,
-	.channel_stride	= 0x60,
-	.show_dma_caps	= omap2_show_dma_caps,
-	.clear_dma	= omap2_clear_dma,
-	.dma_write	= dma_write,
-	.dma_read	= dma_read,
+static struct omap_dma_dev_attr dma_attr = {
+	.dev_caps = RESERVE_CHANNEL | DMA_LINKED_LCH | GLOBAL_PRIORITY |
+		    IS_CSSA_32 | IS_CDSA_32,
+	.lch_count = 32,
 };
 
-static struct platform_device_info omap_dma_dev_info __initdata = {
-	.name = "omap-dma-engine",
-	.id = -1,
-	.dma_mask = DMA_BIT_MASK(32),
+struct omap_system_dma_plat_info dma_plat_info = {
+	.reg_map	= reg_map,
+	.channel_stride	= 0x60,
+	.dma_attr	= &dma_attr,
 };
 
 /* One time initializations */
-static int __init omap2_system_dma_init_dev(struct omap_hwmod *oh, void *unused)
+static int __init omap2_system_dma_init(void)
 {
-	struct platform_device			*pdev;
-	struct omap_system_dma_plat_info	p;
-	struct omap_dma_dev_attr		*d;
-	struct resource				*mem;
-	char					*name = "omap_dma_system";
-
-	p = dma_plat_info;
-	p.dma_attr = (struct omap_dma_dev_attr *)oh->dev_attr;
-	p.errata = configure_dma_errata();
+	dma_plat_info.errata = configure_dma_errata();
 
 	if (soc_is_omap24xx()) {
 		/* DMA slave map for drivers not yet converted to DT */
-		p.slave_map = omap24xx_sdma_dt_map;
-		p.slavecnt = ARRAY_SIZE(omap24xx_sdma_dt_map);
+		dma_plat_info.slave_map = omap24xx_sdma_dt_map;
+		dma_plat_info.slavecnt = ARRAY_SIZE(omap24xx_sdma_dt_map);
 	}
 
-	pdev = omap_device_build(name, 0, oh, &p, sizeof(p));
-	if (IS_ERR(pdev)) {
-		pr_err("%s: Can't build omap_device for %s:%s.\n",
-			__func__, name, oh->name);
-		return PTR_ERR(pdev);
-	}
-
-	omap_dma_dev_info.res = pdev->resource;
-	omap_dma_dev_info.num_res = pdev->num_resources;
+	if (!soc_is_omap242x())
+		dma_attr.dev_caps |= IS_RW_PRIORITY;
 
-	mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!mem) {
-		dev_err(&pdev->dev, "%s: no mem resource\n", __func__);
-		return -EINVAL;
-	}
-
-	dma_base = ioremap(mem->start, resource_size(mem));
-	if (!dma_base) {
-		dev_err(&pdev->dev, "%s: ioremap fail\n", __func__);
-		return -ENOMEM;
-	}
-
-	d = oh->dev_attr;
-
-	if (cpu_is_omap34xx() && (omap_type() != OMAP2_DEVICE_TYPE_GP))
-		d->dev_caps |= HS_CHANNELS_RESERVED;
-
-	if (platform_get_irq_byname(pdev, "0") < 0)
-		d->dev_caps |= DMA_ENGINE_HANDLE_IRQ;
-
-	/* Check the capabilities register for descriptor loading feature */
-	if (dma_read(CAPS_0, 0) & DMA_HAS_DESCRIPTOR_CAPS)
-		dma_common_ch_end = CCDN;
-	else
-		dma_common_ch_end = CCFN;
+	if (soc_is_omap34xx() && (omap_type() != OMAP2_DEVICE_TYPE_GP))
+		dma_attr.dev_caps |= HS_CHANNELS_RESERVED;
 
 	return 0;
 }
-
-static int __init omap2_system_dma_init(void)
-{
-	return omap_hwmod_for_each_by_class("dma",
-			omap2_system_dma_init_dev, NULL);
-}
 omap_arch_initcall(omap2_system_dma_init);

arch/arm/mach-omap2/omap_device.c

@@ -373,176 +373,6 @@ void omap_device_delete(struct omap_device *od)
 	kfree(od);
 }
 
-/**
- * omap_device_copy_resources - Add legacy IO and IRQ resources
- * @oh: interconnect target module
- * @pdev: platform device to copy resources to
- *
- * We still have legacy DMA and smartreflex needing resources.
- * Let's populate what they need until we can eventually just
- * remove this function. Note that there should be no need to
- * call this from omap_device_build_from_dt(), nor should there
- * be any need to call it for other devices.
- */
-static int
-omap_device_copy_resources(struct omap_hwmod *oh,
-			   struct platform_device *pdev)
-{
-	struct device_node *np, *child;
-	struct property *prop;
-	struct resource *res;
-	const char *name;
-	int error, irq = 0;
-
-	if (!oh || !oh->od || !oh->od->pdev)
-		return -EINVAL;
-
-	np = oh->od->pdev->dev.of_node;
-	if (!np) {
-		error = -ENODEV;
-		goto error;
-	}
-
-	res = kcalloc(2, sizeof(*res), GFP_KERNEL);
-	if (!res)
-		return -ENOMEM;
-
-	/* Do we have a dts range for the interconnect target module? */
-	error = omap_hwmod_parse_module_range(oh, np, res);
-
-	/* No ranges, rely on device reg entry */
-	if (error)
-		error = of_address_to_resource(np, 0, res);
-	if (error)
-		goto free;
-
-	/* SmartReflex needs first IO resource name to be "mpu" */
-	res[0].name = "mpu";
-
-	/*
-	 * We may have a configured "ti,sysc" interconnect target with a
-	 * dts child with the interrupt. If so use the first child's
-	 * first interrupt for "ti-hwmods" legacy support.
-	 */
-	of_property_for_each_string(np, "compatible", prop, name)
-		if (!strncmp("ti,sysc-", name, 8))
-			break;
-
-	child = of_get_next_available_child(np, NULL);
-
-	if (name)
-		irq = irq_of_parse_and_map(child, 0);
-	if (!irq)
-		irq = irq_of_parse_and_map(np, 0);
-	if (!irq) {
-		error = -EINVAL;
-		goto free;
-	}
-
-	/* Legacy DMA code needs interrupt name to be "0" */
-	res[1].start = irq;
-	res[1].end = irq;
-	res[1].flags = IORESOURCE_IRQ;
-	res[1].name = "0";
-
-	error = platform_device_add_resources(pdev, res, 2);
-
-free:
-	kfree(res);
-
-error:
-	WARN(error, "%s: %s device %s failed: %i\n",
-	     __func__, oh->name, dev_name(&pdev->dev),
-	     error);
-
-	return error;
-}
-
-/**
- * omap_device_build - build and register an omap_device with one omap_hwmod
- * @pdev_name: name of the platform_device driver to use
- * @pdev_id: this platform_device's connection ID
- * @oh: ptr to the single omap_hwmod that backs this omap_device
- * @pdata: platform_data ptr to associate with the platform_device
- * @pdata_len: amount of memory pointed to by @pdata
- *
- * Convenience function for building and registering a single
- * omap_device record, which in turn builds and registers a
- * platform_device record.  See omap_device_build_ss() for more
- * information.  Returns ERR_PTR(-EINVAL) if @oh is NULL; otherwise,
- * passes along the return value of omap_device_build_ss().
- */
-struct platform_device __init *omap_device_build(const char *pdev_name,
-						 int pdev_id,
-						 struct omap_hwmod *oh,
-						 void *pdata, int pdata_len)
-{
-	int ret = -ENOMEM;
-	struct platform_device *pdev;
-	struct omap_device *od;
-
-	if (!oh || !pdev_name)
-		return ERR_PTR(-EINVAL);
-
-	if (!pdata && pdata_len > 0)
-		return ERR_PTR(-EINVAL);
-
-	if (strncmp(oh->name, "smartreflex", 11) &&
-	    strncmp(oh->name, "dma", 3)) {
-		pr_warn("%s need to update %s to probe with dt\na",
-			__func__, pdev_name);
-		ret = -ENODEV;
-		goto odbs_exit;
-	}
-
-	pdev = platform_device_alloc(pdev_name, pdev_id);
-	if (!pdev) {
-		ret = -ENOMEM;
-		goto odbs_exit;
-	}
-
-	/* Set the dev_name early to allow dev_xxx in omap_device_alloc */
-	if (pdev->id != -1)
-		dev_set_name(&pdev->dev, "%s.%d", pdev->name,  pdev->id);
-	else
-		dev_set_name(&pdev->dev, "%s", pdev->name);
-
-	/*
-	 * Must be called before omap_device_alloc() as oh->od
-	 * only contains the currently registered omap_device
-	 * and will get overwritten by omap_device_alloc().
-	 */
-	ret = omap_device_copy_resources(oh, pdev);
-	if (ret)
-		goto odbs_exit1;
-
-	od = omap_device_alloc(pdev, &oh, 1);
-	if (IS_ERR(od)) {
-		ret = PTR_ERR(od);
-		goto odbs_exit1;
-	}
-
-	ret = platform_device_add_data(pdev, pdata, pdata_len);
-	if (ret)
-		goto odbs_exit2;
-
-	ret = omap_device_register(pdev);
-	if (ret)
-		goto odbs_exit2;
-
-	return pdev;
-
-odbs_exit2:
-	omap_device_delete(od);
-odbs_exit1:
-	platform_device_put(pdev);
-odbs_exit:
-
-	pr_err("omap_device: %s: build failed (%d)\n", pdev_name, ret);
-
-	return ERR_PTR(ret);
-}
-
 #ifdef CONFIG_PM
 static int _od_runtime_suspend(struct device *dev)
 {

arch/arm/mach-omap2/omap_device.h

@@ -68,10 +68,6 @@ int omap_device_idle(struct platform_device *pdev);
 
 /* Core code interface */
 
-struct platform_device *omap_device_build(const char *pdev_name, int pdev_id,
-					  struct omap_hwmod *oh, void *pdata,
-					  int pdata_len);
-
 struct omap_device *omap_device_alloc(struct platform_device *pdev,
 				      struct omap_hwmod **ohs, int oh_cnt);
 void omap_device_delete(struct omap_device *od);

arch/arm/mach-omap2/omap_hwmod_2420_data.c

@@ -11,7 +11,6 @@
  */
 
 #include <linux/platform_data/i2c-omap.h>
-#include <linux/omap-dma.h>
 
 #include "omap_hwmod.h"
 #include "l3_2xxx.h"
@@ -126,21 +125,6 @@ static struct omap_hwmod omap2420_i2c2_hwmod = {
 	.flags		= HWMOD_16BIT_REG,
 };
 
-/* dma attributes */
-static struct omap_dma_dev_attr dma_dev_attr = {
-	.dev_caps  = RESERVE_CHANNEL | DMA_LINKED_LCH | GLOBAL_PRIORITY |
-						IS_CSSA_32 | IS_CDSA_32,
-	.lch_count = 32,
-};
-
-static struct omap_hwmod omap2420_dma_system_hwmod = {
-	.name		= "dma",
-	.class		= &omap2xxx_dma_hwmod_class,
-	.main_clk	= "core_l3_ck",
-	.dev_attr	= &dma_dev_attr,
-	.flags		= HWMOD_NO_IDLEST,
-};
-
 /* mailbox */
 static struct omap_hwmod omap2420_mailbox_hwmod = {
 	.name		= "mailbox",
@@ -328,22 +312,6 @@ static struct omap_hwmod_ocp_if omap2420_l4_wkup__gpio4 = {
 	.user		= OCP_USER_MPU | OCP_USER_SDMA,
 };
 
-/* dma_system -> L3 */
-static struct omap_hwmod_ocp_if omap2420_dma_system__l3 = {
-	.master		= &omap2420_dma_system_hwmod,
-	.slave		= &omap2xxx_l3_main_hwmod,
-	.clk		= "core_l3_ck",
-	.user		= OCP_USER_MPU | OCP_USER_SDMA,
-};
-
-/* l4_core -> dma_system */
-static struct omap_hwmod_ocp_if omap2420_l4_core__dma_system = {
-	.master		= &omap2xxx_l4_core_hwmod,
-	.slave		= &omap2420_dma_system_hwmod,
-	.clk		= "sdma_ick",
-	.user		= OCP_USER_MPU | OCP_USER_SDMA,
-};
-
 /* l4_core -> mailbox */
 static struct omap_hwmod_ocp_if omap2420_l4_core__mailbox = {
 	.master		= &omap2xxx_l4_core_hwmod,
@@ -435,8 +403,6 @@ static struct omap_hwmod_ocp_if *omap2420_hwmod_ocp_ifs[] __initdata = {
 	&omap2420_l4_wkup__gpio2,
 	&omap2420_l4_wkup__gpio3,
 	&omap2420_l4_wkup__gpio4,
-	&omap2420_dma_system__l3,
-	&omap2420_l4_core__dma_system,
 	&omap2420_l4_core__mailbox,
 	&omap2420_l4_core__mcbsp1,
 	&omap2420_l4_core__mcbsp2,

arch/arm/mach-omap2/omap_hwmod_2430_data.c

@@ -12,7 +12,6 @@
 
 #include <linux/platform_data/i2c-omap.h>
 #include <linux/platform_data/hsmmc-omap.h>
-#include <linux/omap-dma.h>
 
 #include "omap_hwmod.h"
 #include "l3_2xxx.h"
@@ -121,21 +120,6 @@ static struct omap_hwmod omap2430_gpio5_hwmod = {
 	.class		= &omap2xxx_gpio_hwmod_class,
 };
 
-/* dma attributes */
-static struct omap_dma_dev_attr dma_dev_attr = {
-	.dev_caps  = RESERVE_CHANNEL | DMA_LINKED_LCH | GLOBAL_PRIORITY |
-				IS_CSSA_32 | IS_CDSA_32 | IS_RW_PRIORITY,
-	.lch_count = 32,
-};
-
-static struct omap_hwmod omap2430_dma_system_hwmod = {
-	.name		= "dma",
-	.class		= &omap2xxx_dma_hwmod_class,
-	.main_clk	= "core_l3_ck",
-	.dev_attr	= &dma_dev_attr,
-	.flags		= HWMOD_NO_IDLEST,
-};
-
 /* mailbox */
 static struct omap_hwmod omap2430_mailbox_hwmod = {
 	.name		= "mailbox",
@@ -508,22 +492,6 @@ static struct omap_hwmod_ocp_if omap2430_l4_core__gpio5 = {
 	.user		= OCP_USER_MPU | OCP_USER_SDMA,
 };
 
-/* dma_system -> L3 */
-static struct omap_hwmod_ocp_if omap2430_dma_system__l3 = {
-	.master		= &omap2430_dma_system_hwmod,
-	.slave		= &omap2xxx_l3_main_hwmod,
-	.clk		= "core_l3_ck",
-	.user		= OCP_USER_MPU | OCP_USER_SDMA,
-};
-
-/* l4_core -> dma_system */
-static struct omap_hwmod_ocp_if omap2430_l4_core__dma_system = {
-	.master		= &omap2xxx_l4_core_hwmod,
-	.slave		= &omap2430_dma_system_hwmod,
-	.clk		= "sdma_ick",
-	.user		= OCP_USER_MPU | OCP_USER_SDMA,
-};
-
 /* l4_core -> mailbox */
 static struct omap_hwmod_ocp_if omap2430_l4_core__mailbox = {
 	.master		= &omap2xxx_l4_core_hwmod,
@@ -635,8 +603,6 @@ static struct omap_hwmod_ocp_if *omap2430_hwmod_ocp_ifs[] __initdata = {
 	&omap2430_l4_wkup__gpio3,
 	&omap2430_l4_wkup__gpio4,
 	&omap2430_l4_core__gpio5,
-	&omap2430_dma_system__l3,
-	&omap2430_l4_core__dma_system,
 	&omap2430_l4_core__mailbox,
 	&omap2430_l4_core__mcbsp1,
 	&omap2430_l4_core__mcbsp2,

arch/arm/mach-omap2/omap_hwmod_2xxx_ipblock_data.c

@@ -7,7 +7,6 @@
  */
 
 #include <linux/types.h>
-#include <linux/omap-dma.h>
 
 #include "omap_hwmod.h"
 #include "omap_hwmod_common_data.h"
@@ -95,23 +94,6 @@ struct omap_hwmod_class omap2xxx_gpio_hwmod_class = {
 	.sysc = &omap2xxx_gpio_sysc,
 };
 
-/* system dma */
-static struct omap_hwmod_class_sysconfig omap2xxx_dma_sysc = {
-	.rev_offs	= 0x0000,
-	.sysc_offs	= 0x002c,
-	.syss_offs	= 0x0028,
-	.sysc_flags	= (SYSC_HAS_SOFTRESET | SYSC_HAS_MIDLEMODE |
-			   SYSC_HAS_CLOCKACTIVITY | SYSC_HAS_EMUFREE |
-			   SYSC_HAS_AUTOIDLE | SYSS_HAS_RESET_STATUS),
-	.idlemodes	= (MSTANDBY_FORCE | MSTANDBY_NO | MSTANDBY_SMART),
-	.sysc_fields	= &omap_hwmod_sysc_type1,
-};
-
-struct omap_hwmod_class omap2xxx_dma_hwmod_class = {
-	.name	= "dma",
-	.sysc	= &omap2xxx_dma_sysc,
-};
-
 /*
  * 'mailbox' class
  * mailbox module allowing communication between the on-chip processors

arch/arm/mach-omap2/omap_hwmod_3xxx_data.c

@@ -16,7 +16,6 @@
 #include <linux/power/smartreflex.h>
 #include <linux/platform_data/hsmmc-omap.h>
 
-#include <linux/omap-dma.h>
 #include "l3_3xxx.h"
 #include "l4_3xxx.h"
 
@@ -833,47 +832,6 @@ static struct omap_hwmod omap3xxx_gpio6_hwmod = {
 	.class		= &omap3xxx_gpio_hwmod_class,
 };
 
-/* dma attributes */
-static struct omap_dma_dev_attr dma_dev_attr = {
-	.dev_caps  = RESERVE_CHANNEL | DMA_LINKED_LCH | GLOBAL_PRIORITY |
-				IS_CSSA_32 | IS_CDSA_32 | IS_RW_PRIORITY,
-	.lch_count = 32,
-};
-
-static struct omap_hwmod_class_sysconfig omap3xxx_dma_sysc = {
-	.rev_offs	= 0x0000,
-	.sysc_offs	= 0x002c,
-	.syss_offs	= 0x0028,
-	.sysc_flags	= (SYSC_HAS_SIDLEMODE | SYSC_HAS_SOFTRESET |
-			   SYSC_HAS_MIDLEMODE | SYSC_HAS_CLOCKACTIVITY |
-			   SYSC_HAS_EMUFREE | SYSC_HAS_AUTOIDLE |
-			   SYSS_HAS_RESET_STATUS),
-	.idlemodes	= (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART |
-			   MSTANDBY_FORCE | MSTANDBY_NO | MSTANDBY_SMART),
-	.sysc_fields	= &omap_hwmod_sysc_type1,
-};
-
-static struct omap_hwmod_class omap3xxx_dma_hwmod_class = {
-	.name = "dma",
-	.sysc = &omap3xxx_dma_sysc,
-};
-
-/* dma_system */
-static struct omap_hwmod omap3xxx_dma_system_hwmod = {
-	.name		= "dma",
-	.class		= &omap3xxx_dma_hwmod_class,
-	.main_clk	= "core_l3_ick",
-	.prcm = {
-		.omap2 = {
-			.module_offs		= CORE_MOD,
-			.idlest_reg_id		= 1,
-			.idlest_idle_bit	= OMAP3430_ST_SDMA_SHIFT,
-		},
-	},
-	.dev_attr	= &dma_dev_attr,
-	.flags		= HWMOD_NO_IDLEST,
-};
-
 /*
  * 'mcbsp' class
  * multi channel buffered serial port controller
@@ -2233,23 +2191,6 @@ static struct omap_hwmod_ocp_if omap3xxx_l4_per__gpio6 = {
 	.user		= OCP_USER_MPU | OCP_USER_SDMA,
 };
 
-/* dma_system -> L3 */
-static struct omap_hwmod_ocp_if omap3xxx_dma_system__l3 = {
-	.master		= &omap3xxx_dma_system_hwmod,
-	.slave		= &omap3xxx_l3_main_hwmod,
-	.clk		= "core_l3_ick",
-	.user		= OCP_USER_MPU | OCP_USER_SDMA,
-};
-
-/* l4_cfg -> dma_system */
-static struct omap_hwmod_ocp_if omap3xxx_l4_core__dma_system = {
-	.master		= &omap3xxx_l4_core_hwmod,
-	.slave		= &omap3xxx_dma_system_hwmod,
-	.clk		= "core_l4_ick",
-	.user		= OCP_USER_MPU | OCP_USER_SDMA,
-};
-
-
 /* l4_core -> mcbsp1 */
 static struct omap_hwmod_ocp_if omap3xxx_l4_core__mcbsp1 = {
 	.master		= &omap3xxx_l4_core_hwmod,
@@ -2628,8 +2569,6 @@ static struct omap_hwmod_ocp_if *omap3xxx_hwmod_ocp_ifs[] __initdata = {
 	&omap3xxx_l4_per__gpio4,
 	&omap3xxx_l4_per__gpio5,
 	&omap3xxx_l4_per__gpio6,
-	&omap3xxx_dma_system__l3,
-	&omap3xxx_l4_core__dma_system,
 	&omap3xxx_l4_core__mcbsp1,
 	&omap3xxx_l4_per__mcbsp2,
 	&omap3xxx_l4_per__mcbsp3,

arch/arm/mach-omap2/omap_hwmod_44xx_data.c

@@ -18,7 +18,6 @@
  */
 
 #include <linux/io.h>
-#include <linux/omap-dma.h>
 
 #include "omap_hwmod.h"
 #include "omap_hwmod_common_data.h"
@@ -30,9 +29,6 @@
 /* Base offset for all OMAP4 interrupts external to MPUSS */
 #define OMAP44XX_IRQ_GIC_START	32
 
-/* Base offset for all OMAP4 dma requests */
-#define OMAP44XX_DMA_REQ_START	1
-
 /*
  * IP blocks
  */
@@ -359,53 +355,6 @@ static struct omap_hwmod omap44xx_debugss_hwmod = {
 	},
 };
 
-/*
- * 'dma' class
- * dma controller for data exchange between memory to memory (i.e. internal or
- * external memory) and gp peripherals to memory or memory to gp peripherals
- */
-
-static struct omap_hwmod_class_sysconfig omap44xx_dma_sysc = {
-	.rev_offs	= 0x0000,
-	.sysc_offs	= 0x002c,
-	.syss_offs	= 0x0028,
-	.sysc_flags	= (SYSC_HAS_AUTOIDLE | SYSC_HAS_CLOCKACTIVITY |
-			   SYSC_HAS_EMUFREE | SYSC_HAS_MIDLEMODE |
-			   SYSC_HAS_SIDLEMODE | SYSC_HAS_SOFTRESET |
-			   SYSS_HAS_RESET_STATUS),
-	.idlemodes	= (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART |
-			   MSTANDBY_FORCE | MSTANDBY_NO | MSTANDBY_SMART),
-	.sysc_fields	= &omap_hwmod_sysc_type1,
-};
-
-static struct omap_hwmod_class omap44xx_dma_hwmod_class = {
-	.name	= "dma",
-	.sysc	= &omap44xx_dma_sysc,
-};
-
-/* dma dev_attr */
-static struct omap_dma_dev_attr dma_dev_attr = {
-	.dev_caps	= RESERVE_CHANNEL | DMA_LINKED_LCH | GLOBAL_PRIORITY |
-			  IS_CSSA_32 | IS_CDSA_32 | IS_RW_PRIORITY,
-	.lch_count	= 32,
-};
-
-/* dma_system */
-static struct omap_hwmod omap44xx_dma_system_hwmod = {
-	.name		= "dma_system",
-	.class		= &omap44xx_dma_hwmod_class,
-	.clkdm_name	= "l3_dma_clkdm",
-	.main_clk	= "l3_div_ck",
-	.prcm = {
-		.omap4 = {
-			.clkctrl_offs = OMAP4_CM_SDMA_SDMA_CLKCTRL_OFFSET,
-			.context_offs = OMAP4_RM_SDMA_SDMA_CONTEXT_OFFSET,
-		},
-	},
-	.dev_attr	= &dma_dev_attr,
-};
-
-
 /*
  * 'dsp' class
  * dsp sub-system
@@ -1458,14 +1407,6 @@ static struct omap_hwmod_ocp_if omap44xx_debugss__l3_main_2 = {
 	.user		= OCP_USER_MPU | OCP_USER_SDMA,
 };
 
-/* dma_system -> l3_main_2 */
-static struct omap_hwmod_ocp_if omap44xx_dma_system__l3_main_2 = {
-	.master		= &omap44xx_dma_system_hwmod,
-	.slave		= &omap44xx_l3_main_2_hwmod,
-	.clk		= "l3_div_ck",
-	.user		= OCP_USER_MPU | OCP_USER_SDMA,
-};
-
 /* ipu -> l3_main_2 */
 static struct omap_hwmod_ocp_if omap44xx_ipu__l3_main_2 = {
 	.master		= &omap44xx_ipu_hwmod,
@@ -1658,14 +1599,6 @@ static struct omap_hwmod_ocp_if omap44xx_l3_instr__debugss = {
 	.user		= OCP_USER_MPU | OCP_USER_SDMA,
 };
 
-/* l4_cfg -> dma_system */
-static struct omap_hwmod_ocp_if omap44xx_l4_cfg__dma_system = {
-	.master		= &omap44xx_l4_cfg_hwmod,
-	.slave		= &omap44xx_dma_system_hwmod,
-	.clk		= "l4_div_ck",
-	.user		= OCP_USER_MPU | OCP_USER_SDMA,
-};
-
 /* dsp -> iva */
 static struct omap_hwmod_ocp_if omap44xx_dsp__iva = {
 	.master		= &omap44xx_dsp_hwmod,
@@ -1966,7 +1899,6 @@ static struct omap_hwmod_ocp_if *omap44xx_hwmod_ocp_ifs[] __initdata = {
 	&omap44xx_l4_cfg__l3_main_1,
 	&omap44xx_mpu__l3_main_1,
 	&omap44xx_debugss__l3_main_2,
-	&omap44xx_dma_system__l3_main_2,
 	&omap44xx_ipu__l3_main_2,
 	&omap44xx_iss__l3_main_2,
 	&omap44xx_iva__l3_main_2,
@@ -1991,7 +1923,6 @@ static struct omap_hwmod_ocp_if *omap44xx_hwmod_ocp_ifs[] __initdata = {
 	&omap44xx_l4_wkup__ctrl_module_wkup,
 	&omap44xx_l4_wkup__ctrl_module_pad_wkup,
 	&omap44xx_l3_instr__debugss,
-	&omap44xx_l4_cfg__dma_system,
 	&omap44xx_dsp__iva,
 	/* &omap44xx_dsp__sl2if, */
 	&omap44xx_l4_cfg__dsp,

arch/arm/mach-omap2/omap_hwmod_54xx_data.c

@@ -17,8 +17,6 @@
 #include <linux/io.h>
 #include <linux/power/smartreflex.h>
 
-#include <linux/omap-dma.h>
-
 #include "omap_hwmod.h"
 #include "omap_hwmod_common_data.h"
 #include "cm1_54xx.h"
@@ -28,10 +26,6 @@
 /* Base offset for all OMAP5 interrupts external to MPUSS */
 #define OMAP54XX_IRQ_GIC_START	32
 
-/* Base offset for all OMAP5 dma requests */
-#define OMAP54XX_DMA_REQ_START	1
-
-
 /*
  * IP blocks
  */
@@ -232,53 +226,6 @@ static struct omap_hwmod omap54xx_counter_32k_hwmod = {
 	},
 };
 
-/*
- * 'dma' class
- * dma controller for data exchange between memory to memory (i.e. internal or
- * external memory) and gp peripherals to memory or memory to gp peripherals
- */
-
-static struct omap_hwmod_class_sysconfig omap54xx_dma_sysc = {
-	.rev_offs	= 0x0000,
-	.sysc_offs	= 0x002c,
-	.syss_offs	= 0x0028,
-	.sysc_flags	= (SYSC_HAS_AUTOIDLE | SYSC_HAS_CLOCKACTIVITY |
-			   SYSC_HAS_EMUFREE | SYSC_HAS_MIDLEMODE |
-			   SYSC_HAS_SIDLEMODE | SYSC_HAS_SOFTRESET |
-			   SYSS_HAS_RESET_STATUS),
-	.idlemodes	= (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART |
-			   MSTANDBY_FORCE | MSTANDBY_NO | MSTANDBY_SMART),
-	.sysc_fields	= &omap_hwmod_sysc_type1,
-};
-
-static struct omap_hwmod_class omap54xx_dma_hwmod_class = {
-	.name	= "dma",
-	.sysc	= &omap54xx_dma_sysc,
-};
-
-/* dma dev_attr */
-static struct omap_dma_dev_attr dma_dev_attr = {
-	.dev_caps	= RESERVE_CHANNEL | DMA_LINKED_LCH | GLOBAL_PRIORITY |
-			  IS_CSSA_32 | IS_CDSA_32 | IS_RW_PRIORITY,
-	.lch_count	= 32,
-};
-
-/* dma_system */
-static struct omap_hwmod omap54xx_dma_system_hwmod = {
-	.name		= "dma_system",
-	.class		= &omap54xx_dma_hwmod_class,
-	.clkdm_name	= "dma_clkdm",
-	.main_clk	= "l3_iclk_div",
-	.prcm = {
-		.omap4 = {
-			.clkctrl_offs = OMAP54XX_CM_DMA_DMA_SYSTEM_CLKCTRL_OFFSET,
-			.context_offs = OMAP54XX_RM_DMA_DMA_SYSTEM_CONTEXT_OFFSET,
-		},
-	},
-	.dev_attr	= &dma_dev_attr,
-};
-
-
 /*
  * 'dss' class
  * display sub-system
@@ -961,14 +908,6 @@ static struct omap_hwmod_ocp_if omap54xx_l4_wkup__counter_32k = {
 	.user		= OCP_USER_MPU | OCP_USER_SDMA,
 };
 
-/* l4_cfg -> dma_system */
-static struct omap_hwmod_ocp_if omap54xx_l4_cfg__dma_system = {
-	.master		= &omap54xx_l4_cfg_hwmod,
-	.slave		= &omap54xx_dma_system_hwmod,
-	.clk		= "l4_root_clk_div",
-	.user		= OCP_USER_MPU | OCP_USER_SDMA,
-};
-
 /* l3_main_2 -> dss */
 static struct omap_hwmod_ocp_if omap54xx_l3_main_2__dss = {
 	.master		= &omap54xx_l3_main_2_hwmod,
@@ -1091,7 +1030,6 @@ static struct omap_hwmod_ocp_if *omap54xx_hwmod_ocp_ifs[] __initdata = {
 	&omap54xx_l3_main_1__l4_wkup,
 	&omap54xx_mpu__mpu_private,
 	&omap54xx_l4_wkup__counter_32k,
-	&omap54xx_l4_cfg__dma_system,
 	&omap54xx_l3_main_2__dss,
 	&omap54xx_l3_main_2__dss_dispc,
 	&omap54xx_l3_main_2__dss_dsi1_a,

arch/arm/mach-omap2/omap_hwmod_7xx_data.c

@@ -15,7 +15,6 @@
  */
 
 #include <linux/io.h>
-#include <linux/omap-dma.h>
 
 #include "omap_hwmod.h"
 #include "omap_hwmod_common_data.h"
@@ -27,10 +26,6 @@
 /* Base offset for all DRA7XX interrupts external to MPUSS */
 #define DRA7XX_IRQ_GIC_START	32
 
-/* Base offset for all DRA7XX dma requests */
-#define DRA7XX_DMA_REQ_START	1
-
-
 /*
  * IP blocks
  */
@@ -281,52 +276,6 @@ static struct omap_hwmod dra7xx_ctrl_module_wkup_hwmod = {
 	},
 };
 
-/*
- * 'dma' class
- *
- */
-
-static struct omap_hwmod_class_sysconfig dra7xx_dma_sysc = {
-	.rev_offs	= 0x0000,
-	.sysc_offs	= 0x002c,
-	.syss_offs	= 0x0028,
-	.sysc_flags	= (SYSC_HAS_AUTOIDLE | SYSC_HAS_CLOCKACTIVITY |
-			   SYSC_HAS_EMUFREE | SYSC_HAS_MIDLEMODE |
-			   SYSC_HAS_SIDLEMODE | SYSC_HAS_SOFTRESET |
-			   SYSS_HAS_RESET_STATUS),
-	.idlemodes	= (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART |
-			   SIDLE_SMART_WKUP | MSTANDBY_FORCE | MSTANDBY_NO |
-			   MSTANDBY_SMART | MSTANDBY_SMART_WKUP),
-	.sysc_fields	= &omap_hwmod_sysc_type1,
-};
-
-static struct omap_hwmod_class dra7xx_dma_hwmod_class = {
-	.name	= "dma",
-	.sysc	= &dra7xx_dma_sysc,
-};
-
-/* dma dev_attr */
-static struct omap_dma_dev_attr dma_dev_attr = {
-	.dev_caps	= RESERVE_CHANNEL | DMA_LINKED_LCH | GLOBAL_PRIORITY |
-			  IS_CSSA_32 | IS_CDSA_32 | IS_RW_PRIORITY,
-	.lch_count	= 32,
-};
-
-/* dma_system */
-static struct omap_hwmod dra7xx_dma_system_hwmod = {
-	.name		= "dma_system",
-	.class		= &dra7xx_dma_hwmod_class,
-	.clkdm_name	= "dma_clkdm",
-	.main_clk	= "l3_iclk_div",
-	.prcm = {
-		.omap4 = {
-			.clkctrl_offs = DRA7XX_CM_DMA_DMA_SYSTEM_CLKCTRL_OFFSET,
-			.context_offs = DRA7XX_RM_DMA_DMA_SYSTEM_CONTEXT_OFFSET,
-		},
-	},
-	.dev_attr	= &dma_dev_attr,
-};
-
 /*
  * 'tpcc' class
  *
@@ -1128,14 +1077,6 @@ static struct omap_hwmod_ocp_if dra7xx_l4_wkup__ctrl_module_wkup = {
 	.user		= OCP_USER_MPU | OCP_USER_SDMA,
 };
 
-/* l4_cfg -> dma_system */
-static struct omap_hwmod_ocp_if dra7xx_l4_cfg__dma_system = {
-	.master		= &dra7xx_l4_cfg_hwmod,
-	.slave		= &dra7xx_dma_system_hwmod,
-	.clk		= "l3_iclk_div",
-	.user		= OCP_USER_MPU | OCP_USER_SDMA,
-};
-
 /* l3_main_1 -> tpcc */
 static struct omap_hwmod_ocp_if dra7xx_l3_main_1__tpcc = {
 	.master		= &dra7xx_l3_main_1_hwmod,
@@ -1368,7 +1309,6 @@ static struct omap_hwmod_ocp_if *dra7xx_hwmod_ocp_ifs[] __initdata = {
 	&dra7xx_l3_main_1__bb2d,
 	&dra7xx_l4_wkup__counter_32k,
 	&dra7xx_l4_wkup__ctrl_module_wkup,
-	&dra7xx_l4_cfg__dma_system,
 	&dra7xx_l3_main_1__tpcc,
 	&dra7xx_l3_main_1__tptc0,
 	&dra7xx_l3_main_1__tptc1,

arch/arm/mach-omap2/omap_hwmod_common_data.h

@@ -98,7 +98,6 @@ extern struct omap_hwmod_class omap2_hdq1w_class;
 extern struct omap_hwmod_class omap2xxx_timer_hwmod_class;
 extern struct omap_hwmod_class omap2xxx_wd_timer_hwmod_class;
 extern struct omap_hwmod_class omap2xxx_gpio_hwmod_class;
-extern struct omap_hwmod_class omap2xxx_dma_hwmod_class;
 extern struct omap_hwmod_class omap2xxx_mailbox_hwmod_class;
 extern struct omap_hwmod_class omap2xxx_mcspi_class;
 

arch/arm/mach-omap2/pdata-quirks.c

@@ -514,6 +514,7 @@ static struct of_dev_auxdata omap_auxdata_lookup[] = {
 	/* Common auxdata */
 	OF_DEV_AUXDATA("ti,sysc", 0, NULL, &ti_sysc_pdata),
 	OF_DEV_AUXDATA("pinctrl-single", 0, NULL, &pcs_pdata),
+	OF_DEV_AUXDATA("ti,omap-sdma", 0, NULL, &dma_plat_info),
 	{ /* sentinel */ },
 };
 

arch/arm/mach-omap2/pm24xx.c

@@ -83,8 +83,6 @@ static int omap2_enter_full_retention(void)
 	l = omap_ctrl_readl(OMAP2_CONTROL_DEVCONF0) | OMAP24XX_USBSTANDBYCTRL;
 	omap_ctrl_writel(l, OMAP2_CONTROL_DEVCONF0);
 
-	cpu_cluster_pm_enter();
-
 	/* One last check for pending IRQs to avoid extra latency due
 	 * to sleeping unnecessarily. */
 	if (omap_irq_pending())
@@ -96,8 +94,6 @@ static int omap2_enter_full_retention(void)
 			   OMAP_SDRC_REGADDR(SDRC_POWER));
 
 no_sleep:
-	cpu_cluster_pm_exit();
-
 	clk_enable(osc_ck);
 
 	/* clear CORE wake-up events */
@@ -162,25 +158,27 @@ static int omap2_can_sleep(void)
 		return 0;
 	if (__clk_is_enabled(osc_ck))
 		return 0;
-	if (omap_dma_running())
-		return 0;
 
 	return 1;
 }
 
 static void omap2_pm_idle(void)
 {
-	if (!omap2_can_sleep()) {
-		if (omap_irq_pending())
-			return;
-		omap2_enter_mpu_retention();
-		return;
-	}
+	int error;
 
 	if (omap_irq_pending())
 		return;
 
+	error = cpu_cluster_pm_enter();
+	if (error || !omap2_can_sleep()) {
+		omap2_enter_mpu_retention();
+		goto out_cpu_cluster_pm;
+	}
+
 	omap2_enter_full_retention();
+
+out_cpu_cluster_pm:
+	cpu_cluster_pm_exit();
 }
 
 static void __init prcm_setup_regs(void)

arch/arm/mach-omap2/pm34xx.c

@@ -25,7 +25,6 @@
 #include <linux/clk.h>
 #include <linux/delay.h>
 #include <linux/slab.h>
-#include <linux/omap-dma.h>
 #include <linux/omap-gpmc.h>
 
 #include <trace/events/power.h>
@@ -85,7 +84,6 @@ static void omap3_core_save_context(void)
 	omap3_gpmc_save_context();
 	/* Save the system control module context, padconf already save above*/
 	omap3_control_save_context();
-	omap_dma_global_context_save();
 }
 
 static void omap3_core_restore_context(void)
@@ -96,7 +94,6 @@ static void omap3_core_restore_context(void)
 	omap3_gpmc_restore_context();
 	/* Restore the interrupt controller context */
 	omap_intc_restore_context();
-	omap_dma_global_context_restore();
 }
 
 /*
@@ -547,9 +544,7 @@ int __init omap3_pm_init(void)
 
 		local_irq_disable();
 
-		omap_dma_global_context_save();
 		omap3_save_secure_ram_context();
-		omap_dma_global_context_restore();
 
 		local_irq_enable();
 	}

include/linux/omap-dma.h

@@ -129,7 +129,6 @@
 #define IS_WORD_16			BIT(0xd)
 #define ENABLE_16XX_MODE		BIT(0xe)
 #define HS_CHANNELS_RESERVED		BIT(0xf)
-#define DMA_ENGINE_HANDLE_IRQ		BIT(0x10)
 
 /* Defines for DMA Capabilities */
 #define DMA_HAS_TRANSPARENT_CAPS	(0x1 << 18)
@@ -239,9 +238,6 @@ struct omap_dma_lch {
 	void (*callback)(int lch, u16 ch_status, void *data);
 	void *data;
 	long flags;
-	/* required for Dynamic chaining */
-	int prev_linked_ch;
-	int next_linked_ch;
 	int state;
 	int chain_id;
 	int status;
@@ -303,7 +299,6 @@ extern void omap_set_dma_priority(int lch, int dst_port, int priority);
 extern int omap_request_dma(int dev_id, const char *dev_name,
 			void (*callback)(int lch, u16 ch_status, void *data),
 			void *data, int *dma_ch);
-extern void omap_enable_dma_irq(int ch, u16 irq_bits);
 extern void omap_disable_dma_irq(int ch, u16 irq_bits);
 extern void omap_free_dma(int ch);
 extern void omap_start_dma(int lch);
@@ -312,7 +307,6 @@ extern void omap_set_dma_transfer_params(int lch, int data_type,
 					 int elem_count, int frame_count,
 					 int sync_mode,
 					 int dma_trigger, int src_or_dst_synch);
-extern void omap_set_dma_write_mode(int lch, enum omap_dma_write_mode mode);
 extern void omap_set_dma_channel_mode(int lch, enum omap_dma_channel_mode mode);
 
 extern void omap_set_dma_src_params(int lch, int src_port, int src_amode,
@@ -329,22 +323,10 @@ extern void omap_set_dma_dest_data_pack(int lch, int enable);
 extern void omap_set_dma_dest_burst_mode(int lch,
 					 enum omap_dma_burst_mode burst_mode);
 
-extern void omap_set_dma_params(int lch,
-				struct omap_dma_channel_params *params);
-
-extern void omap_dma_link_lch(int lch_head, int lch_queue);
-
-extern int omap_set_dma_callback(int lch,
-			void (*callback)(int lch, u16 ch_status, void *data),
-			void *data);
 extern dma_addr_t omap_get_dma_src_pos(int lch);
 extern dma_addr_t omap_get_dma_dst_pos(int lch);
 extern int omap_get_dma_active_status(int lch);
 extern int omap_dma_running(void);
-extern void omap_dma_set_global_params(int arb_rate, int max_fifo_depth,
-				       int tparams);
-void omap_dma_global_context_save(void);
-void omap_dma_global_context_restore(void);
 
 #if defined(CONFIG_ARCH_OMAP1) && IS_ENABLED(CONFIG_FB_OMAP)
 #include <mach/lcd_dma.h>