Merge branches 'clk-qoriq-t1023', 'clk-protected-binding',...

Merge branches 'clk-qoriq-t1023', 'clk-protected-binding', 'clk-define-show-macro' and 'clk-static' into clk-next

 - NXP QorIQ T1023 SoC support
 - Introduce a 'protected-clocks' binding for firmware protected clks
 - Shrink code some with DEFINE_SHOW_ATTRIBUTE()

* clk-qoriq-t1023:
  clk: qoriq: add more chips support

* clk-protected-binding:
  clk: qcom: Support 'protected-clocks' property
  dt-bindings: clk: Introduce 'protected-clocks' property

* clk-define-show-macro:
  clk: tegra: Change to use DEFINE_SHOW_ATTRIBUTE macro
  clk: nomadik: Change to use DEFINE_SHOW_ATTRIBUTE macro

* clk-static:
  clk: stm32mp1: drop pointless static qualifier in stm32_register_hw_clk()

Documentation/devicetree/bindings/clock/clock-bindings.txt

@@ -168,3 +168,19 @@ a shared clock is forbidden.
 
 Configuration of common clocks, which affect multiple consumer devices can
 be similarly specified in the clock provider node.
+
+==Protected clocks==
+
+Some platforms or firmwares may not fully expose all the clocks to the OS, such
+as in situations where those clks are used by drivers running in ARM secure
+execution levels. Such a configuration can be specified in device tree with the
+protected-clocks property in the form of a clock specifier list. This property should
+only be specified in the node that is providing the clocks being protected:
+
+   clock-controller@a000f000 {
+        compatible = "vendor,clk95;
+        reg = <0xa000f000 0x1000>
+        #clocks-cells = <1>;
+        ...
+        protected-clocks = <UART3_CLK>, <SPI5_CLK>;
+   };

drivers/clk/clk-nomadik.c

@@ -455,7 +455,7 @@ static const char * const src_clk_names[] = {
 	"RNGCCLK   ",
 };
 
-static int nomadik_src_clk_show(struct seq_file *s, void *what)
+static int nomadik_src_clk_debugfs_show(struct seq_file *s, void *what)
 {
 	int i;
 	u32 src_pcksr0 = readl(src_base + SRC_PCKSR0);
@@ -479,17 +479,7 @@ static int nomadik_src_clk_show(struct seq_file *s, void *what)
 	return 0;
 }
 
-static int nomadik_src_clk_open(struct inode *inode, struct file *file)
-{
-	return single_open(file, nomadik_src_clk_show, NULL);
-}
-
-static const struct file_operations nomadik_src_clk_debugfs_ops = {
-	.open           = nomadik_src_clk_open,
-	.read           = seq_read,
-        .llseek         = seq_lseek,
-	.release        = single_release,
-};
+DEFINE_SHOW_ATTRIBUTE(nomadik_src_clk_debugfs);
 
 static int __init nomadik_src_clk_init_debugfs(void)
 {
@@ -499,7 +489,7 @@ static int __init nomadik_src_clk_init_debugfs(void)
 	src_pcksr0_boot = readl(src_base + SRC_PCKSR0);
 	src_pcksr1_boot = readl(src_base + SRC_PCKSR1);
 	debugfs_create_file("nomadik-src-clk", S_IFREG | S_IRUGO,
-			    NULL, NULL, &nomadik_src_clk_debugfs_ops);
+			    NULL, NULL, &nomadik_src_clk_debugfs_fops);
 	return 0;
 }
 device_initcall(nomadik_src_clk_init_debugfs);

drivers/clk/clk-qoriq.c

@@ -1418,12 +1418,23 @@ static void __init clockgen_init(struct device_node *np)
 
 CLK_OF_DECLARE(qoriq_clockgen_1, "fsl,qoriq-clockgen-1.0", clockgen_init);
 CLK_OF_DECLARE(qoriq_clockgen_2, "fsl,qoriq-clockgen-2.0", clockgen_init);
+CLK_OF_DECLARE(qoriq_clockgen_b4420, "fsl,b4420-clockgen", clockgen_init);
+CLK_OF_DECLARE(qoriq_clockgen_b4860, "fsl,b4860-clockgen", clockgen_init);
 CLK_OF_DECLARE(qoriq_clockgen_ls1012a, "fsl,ls1012a-clockgen", clockgen_init);
 CLK_OF_DECLARE(qoriq_clockgen_ls1021a, "fsl,ls1021a-clockgen", clockgen_init);
 CLK_OF_DECLARE(qoriq_clockgen_ls1043a, "fsl,ls1043a-clockgen", clockgen_init);
 CLK_OF_DECLARE(qoriq_clockgen_ls1046a, "fsl,ls1046a-clockgen", clockgen_init);
 CLK_OF_DECLARE(qoriq_clockgen_ls1088a, "fsl,ls1088a-clockgen", clockgen_init);
 CLK_OF_DECLARE(qoriq_clockgen_ls2080a, "fsl,ls2080a-clockgen", clockgen_init);
+CLK_OF_DECLARE(qoriq_clockgen_p2041, "fsl,p2041-clockgen", clockgen_init);
+CLK_OF_DECLARE(qoriq_clockgen_p3041, "fsl,p3041-clockgen", clockgen_init);
+CLK_OF_DECLARE(qoriq_clockgen_p4080, "fsl,p4080-clockgen", clockgen_init);
+CLK_OF_DECLARE(qoriq_clockgen_p5020, "fsl,p5020-clockgen", clockgen_init);
+CLK_OF_DECLARE(qoriq_clockgen_p5040, "fsl,p5040-clockgen", clockgen_init);
+CLK_OF_DECLARE(qoriq_clockgen_t1023, "fsl,t1023-clockgen", clockgen_init);
+CLK_OF_DECLARE(qoriq_clockgen_t1040, "fsl,t1040-clockgen", clockgen_init);
+CLK_OF_DECLARE(qoriq_clockgen_t2080, "fsl,t2080-clockgen", clockgen_init);
+CLK_OF_DECLARE(qoriq_clockgen_t4240, "fsl,t4240-clockgen", clockgen_init);
 
 /* Legacy nodes */
 CLK_OF_DECLARE(qoriq_sysclk_1, "fsl,qoriq-sysclk-1.0", sysclk_init);

drivers/clk/clk-stm32mp1.c

@@ -2015,7 +2015,7 @@ static int stm32_register_hw_clk(struct device *dev,
 				 void __iomem *base, spinlock_t *lock,
 				 const struct clock_config *cfg)
 {
-	static struct clk_hw **hws;
+	struct clk_hw **hws;
 	struct clk_hw *hw = ERR_PTR(-ENOENT);
 
 	hws = clk_data->hws;

drivers/clk/qcom/common.c

@@ -191,6 +191,22 @@ int qcom_cc_register_sleep_clk(struct device *dev)
 }
 EXPORT_SYMBOL_GPL(qcom_cc_register_sleep_clk);
 
+/* Drop 'protected-clocks' from the list of clocks to register */
+static void qcom_cc_drop_protected(struct device *dev, struct qcom_cc *cc)
+{
+	struct device_node *np = dev->of_node;
+	struct property *prop;
+	const __be32 *p;
+	u32 i;
+
+	of_property_for_each_u32(np, "protected-clocks", prop, p, i) {
+		if (i >= cc->num_rclks)
+			continue;
+
+		cc->rclks[i] = NULL;
+	}
+}
+
 static struct clk_hw *qcom_cc_clk_hw_get(struct of_phandle_args *clkspec,
 					 void *data)
 {
@@ -251,6 +267,8 @@ int qcom_cc_really_probe(struct platform_device *pdev,
 	cc->rclks = rclks;
 	cc->num_rclks = num_clks;
 
+	qcom_cc_drop_protected(dev, cc);
+
 	for (i = 0; i < num_clks; i++) {
 		if (!rclks[i])
 			continue;

drivers/clk/tegra/clk-dfll.c

@@ -1184,17 +1184,7 @@ static int attr_registers_show(struct seq_file *s, void *data)
 	return 0;
 }
 
-static int attr_registers_open(struct inode *inode, struct file *file)
-{
-	return single_open(file, attr_registers_show, inode->i_private);
-}
-
-static const struct file_operations attr_registers_fops = {
-	.open		= attr_registers_open,
-	.read		= seq_read,
-	.llseek		= seq_lseek,
-	.release	= single_release,
-};
+DEFINE_SHOW_ATTRIBUTE(attr_registers);
 
 static void dfll_debug_init(struct tegra_dfll *td)
 {