Merge branches 'sh/pm-runtime' and 'common/clkfwk' into sh-fixes-for-linus

drivers/sh/Makefile

@@ -7,3 +7,11 @@ obj-$(CONFIG_HAVE_CLK)		+= clk/
 obj-$(CONFIG_MAPLE)		+= maple/
 obj-$(CONFIG_SUPERHYWAY)	+= superhyway/
 obj-$(CONFIG_GENERIC_GPIO)	+= pfc.o
+
+#
+# For the moment we only use this framework for ARM-based SH/R-Mobile
+# platforms and generic SH. SH-based SH-Mobile platforms are still using
+# an older framework that is pending up-porting, at which point this
+# special casing can go away.
+#
+obj-$(CONFIG_SUPERH)$(CONFIG_ARCH_SHMOBILE)	+= pm_runtime.o

drivers/sh/clk/core.c

@@ -25,7 +25,6 @@
 #include <linux/seq_file.h>
 #include <linux/err.h>
 #include <linux/io.h>
-#include <linux/debugfs.h>
 #include <linux/cpufreq.h>
 #include <linux/clk.h>
 #include <linux/sh_clk.h>
@@ -173,6 +172,26 @@ long clk_rate_div_range_round(struct clk *clk, unsigned int div_min,
 	return clk_rate_round_helper(&div_range_round);
 }
 
+static long clk_rate_mult_range_iter(unsigned int pos,
+				      struct clk_rate_round_data *rounder)
+{
+	return clk_get_rate(rounder->arg) * pos;
+}
+
+long clk_rate_mult_range_round(struct clk *clk, unsigned int mult_min,
+			       unsigned int mult_max, unsigned long rate)
+{
+	struct clk_rate_round_data mult_range_round = {
+		.min	= mult_min,
+		.max	= mult_max,
+		.func	= clk_rate_mult_range_iter,
+		.arg	= clk_get_parent(clk),
+		.rate	= rate,
+	};
+
+	return clk_rate_round_helper(&mult_range_round);
+}
+
 int clk_rate_table_find(struct clk *clk,
 			struct cpufreq_frequency_table *freq_table,
 			unsigned long rate)
@@ -205,9 +224,6 @@ int clk_reparent(struct clk *child, struct clk *parent)
 		list_add(&child->sibling, &parent->children);
 	child->parent = parent;
 
-	/* now do the debugfs renaming to reattach the child
-	   to the proper parent */
-
 	return 0;
 }
 
@@ -665,89 +681,6 @@ static int __init clk_syscore_init(void)
 subsys_initcall(clk_syscore_init);
 #endif
 
-/*
- *	debugfs support to trace clock tree hierarchy and attributes
- */
-static struct dentry *clk_debugfs_root;
-
-static int clk_debugfs_register_one(struct clk *c)
-{
-	int err;
-	struct dentry *d;
-	struct clk *pa = c->parent;
-	char s[255];
-	char *p = s;
-
-	p += sprintf(p, "%p", c);
-	d = debugfs_create_dir(s, pa ? pa->dentry : clk_debugfs_root);
-	if (!d)
-		return -ENOMEM;
-	c->dentry = d;
-
-	d = debugfs_create_u8("usecount", S_IRUGO, c->dentry, (u8 *)&c->usecount);
-	if (!d) {
-		err = -ENOMEM;
-		goto err_out;
-	}
-	d = debugfs_create_u32("rate", S_IRUGO, c->dentry, (u32 *)&c->rate);
-	if (!d) {
-		err = -ENOMEM;
-		goto err_out;
-	}
-	d = debugfs_create_x32("flags", S_IRUGO, c->dentry, (u32 *)&c->flags);
-	if (!d) {
-		err = -ENOMEM;
-		goto err_out;
-	}
-	return 0;
-
-err_out:
-	debugfs_remove_recursive(c->dentry);
-	return err;
-}
-
-static int clk_debugfs_register(struct clk *c)
-{
-	int err;
-	struct clk *pa = c->parent;
-
-	if (pa && !pa->dentry) {
-		err = clk_debugfs_register(pa);
-		if (err)
-			return err;
-	}
-
-	if (!c->dentry) {
-		err = clk_debugfs_register_one(c);
-		if (err)
-			return err;
-	}
-	return 0;
-}
-
-static int __init clk_debugfs_init(void)
-{
-	struct clk *c;
-	struct dentry *d;
-	int err;
-
-	d = debugfs_create_dir("clock", NULL);
-	if (!d)
-		return -ENOMEM;
-	clk_debugfs_root = d;
-
-	list_for_each_entry(c, &clock_list, node) {
-		err = clk_debugfs_register(c);
-		if (err)
-			goto err_out;
-	}
-	return 0;
-err_out:
-	debugfs_remove_recursive(clk_debugfs_root);
-	return err;
-}
-late_initcall(clk_debugfs_init);
-
 static int __init clk_late_init(void)
 {
 	unsigned long flags;

drivers/sh/intc/chip.c

@@ -186,7 +186,7 @@ static unsigned char intc_irq_sense_table[IRQ_TYPE_SENSE_MASK + 1] = {
     !defined(CONFIG_CPU_SUBTYPE_SH7709)
 	[IRQ_TYPE_LEVEL_HIGH] = VALID(3),
 #endif
-#if defined(CONFIG_ARCH_SH7372)
+#if defined(CONFIG_ARM) /* all recent SH-Mobile / R-Mobile ARM support this */
 	[IRQ_TYPE_EDGE_BOTH] = VALID(4),
 #endif
 };

drivers/sh/intc/core.c

@@ -22,6 +22,7 @@
 #include <linux/irq.h>
 #include <linux/io.h>
 #include <linux/slab.h>
+#include <linux/stat.h>
 #include <linux/interrupt.h>
 #include <linux/sh_intc.h>
 #include <linux/sysdev.h>
@@ -29,6 +30,7 @@
 #include <linux/list.h>
 #include <linux/spinlock.h>
 #include <linux/radix-tree.h>
+#include <linux/export.h>
 #include "internals.h"
 
 LIST_HEAD(intc_list);

drivers/sh/intc/dynamic.c

@@ -14,6 +14,7 @@
 #include <linux/irq.h>
 #include <linux/bitmap.h>
 #include <linux/spinlock.h>
+#include <linux/module.h>
 #include "internals.h" /* only for activate_irq() damage.. */
 
 /*

drivers/sh/intc/virq.c

@@ -14,6 +14,7 @@
 #include <linux/list.h>
 #include <linux/radix-tree.h>
 #include <linux/spinlock.h>
+#include <linux/export.h>
 #include "internals.h"
 
 static struct intc_map_entry intc_irq_xlate[NR_IRQS];

drivers/sh/maple/maple.c

@@ -20,6 +20,7 @@
 #include <linux/maple.h>
 #include <linux/dma-mapping.h>
 #include <linux/delay.h>
+#include <linux/module.h>
 #include <asm/cacheflush.h>
 #include <asm/dma.h>
 #include <asm/io.h>

drivers/sh/pm_runtime.c

@@ -0,0 +1,65 @@
+/*
+ * Runtime PM support code
+ *
+ *  Copyright (C) 2009-2010 Magnus Damm
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/io.h>
+#include <linux/pm_runtime.h>
+#include <linux/pm_domain.h>
+#include <linux/pm_clock.h>
+#include <linux/platform_device.h>
+#include <linux/clk.h>
+#include <linux/sh_clk.h>
+#include <linux/bitmap.h>
+#include <linux/slab.h>
+
+#ifdef CONFIG_PM_RUNTIME
+
+static int default_platform_runtime_idle(struct device *dev)
+{
+	/* suspend synchronously to disable clocks immediately */
+	return pm_runtime_suspend(dev);
+}
+
+static struct dev_pm_domain default_pm_domain = {
+	.ops = {
+		.runtime_suspend = pm_clk_suspend,
+		.runtime_resume = pm_clk_resume,
+		.runtime_idle = default_platform_runtime_idle,
+		USE_PLATFORM_PM_SLEEP_OPS
+	},
+};
+
+#define DEFAULT_PM_DOMAIN_PTR	(&default_pm_domain)
+
+#else
+
+#define DEFAULT_PM_DOMAIN_PTR	NULL
+
+#endif /* CONFIG_PM_RUNTIME */
+
+static struct pm_clk_notifier_block platform_bus_notifier = {
+	.pm_domain = DEFAULT_PM_DOMAIN_PTR,
+	.con_ids = { NULL, },
+};
+
+static int __init sh_pm_runtime_init(void)
+{
+	pm_clk_add_notifier(&platform_bus_type, &platform_bus_notifier);
+	return 0;
+}
+core_initcall(sh_pm_runtime_init);
+
+static int __init sh_pm_runtime_late_init(void)
+{
+	pm_genpd_poweroff_unused();
+	return 0;
+}
+late_initcall(sh_pm_runtime_late_init);