Merge branch 'fixes' of git://git.linaro.org/people/rmk/linux-arm

Pull ARM and clkdev fixes from Russell King:
 "Two patches for clkdev which resolve the long standing issue that the
  devm_* versions were dependent on clkdev, which they shouldn't have
  been.  Instead, they're dependent on HAVE_CLK instead, which implies
  that you're providing clk_get() and clk_put().

  A small fix to the ARM decompressor to ensure that the page tables are
  properly interpreted by the CPU, and reserve syscall 378 for kcmp (the
  checksyscalls.sh script is unfortunately currently broken so arch
  maintainers aren't getting notified of new syscalls...)

  Lastly, a larger fix for an issue between the common clk subsystem and
  smp_twd which causes warnings to be spat out."

* 'fixes' of git://git.linaro.org/people/rmk/linux-arm:
  ARM: reserve syscall 378 for kcmp
  ARM: 7535/1: Reprogram smp_twd based on new common clk framework notifiers
  ARM: 7537/1: clk: Fix release in devm_clk_put()
  ARM: 7532/1: decompressor: reset SCTLR.TRE for VMSA ARMv7 cores
  ARM: 7534/1: clk: Make the managed clk functions generically available

arch/arm/boot/compressed/head.S

@@ -653,6 +653,7 @@ __armv7_mmu_cache_on:
 		mcrne	p15, 0, r0, c8, c7, 0	@ flush I,D TLBs
 #endif
 		mrc	p15, 0, r0, c1, c0, 0	@ read control reg
+		bic	r0, r0, #1 << 28	@ clear SCTLR.TRE
 		orr	r0, r0, #0x5000		@ I-cache enable, RR cache replacement
 		orr	r0, r0, #0x003c		@ write buffer
 #ifdef CONFIG_MMU

arch/arm/include/asm/unistd.h

@@ -404,6 +404,7 @@
 #define __NR_setns			(__NR_SYSCALL_BASE+375)
 #define __NR_process_vm_readv		(__NR_SYSCALL_BASE+376)
 #define __NR_process_vm_writev		(__NR_SYSCALL_BASE+377)
+					/* 378 for kcmp */
 
 /*
  * The following SWIs are ARM private.
@@ -483,6 +484,7 @@
  */
 #define __IGNORE_fadvise64_64
 #define __IGNORE_migrate_pages
+#define __IGNORE_kcmp
 
 #endif /* __KERNEL__ */
 #endif /* __ASM_ARM_UNISTD_H */

arch/arm/kernel/calls.S

@@ -387,6 +387,7 @@
 /* 375 */	CALL(sys_setns)
 		CALL(sys_process_vm_readv)
 		CALL(sys_process_vm_writev)
+		CALL(sys_ni_syscall)	/* reserved for sys_kcmp */
 #ifndef syscalls_counted
 .equ syscalls_padding, ((NR_syscalls + 3) & ~3) - NR_syscalls
 #define syscalls_counted

arch/arm/kernel/smp_twd.c

@@ -11,7 +11,6 @@
 #include <linux/init.h>
 #include <linux/kernel.h>
 #include <linux/clk.h>
-#include <linux/cpufreq.h>
 #include <linux/delay.h>
 #include <linux/device.h>
 #include <linux/err.h>
@@ -96,7 +95,52 @@ static void twd_timer_stop(struct clock_event_device *clk)
 	disable_percpu_irq(clk->irq);
 }
 
-#ifdef CONFIG_CPU_FREQ
+#ifdef CONFIG_COMMON_CLK
+
+/*
+ * Updates clockevent frequency when the cpu frequency changes.
+ * Called on the cpu that is changing frequency with interrupts disabled.
+ */
+static void twd_update_frequency(void *new_rate)
+{
+	twd_timer_rate = *((unsigned long *) new_rate);
+
+	clockevents_update_freq(*__this_cpu_ptr(twd_evt), twd_timer_rate);
+}
+
+static int twd_rate_change(struct notifier_block *nb,
+	unsigned long flags, void *data)
+{
+	struct clk_notifier_data *cnd = data;
+
+	/*
+	 * The twd clock events must be reprogrammed to account for the new
+	 * frequency.  The timer is local to a cpu, so cross-call to the
+	 * changing cpu.
+	 */
+	if (flags == POST_RATE_CHANGE)
+		smp_call_function(twd_update_frequency,
+				  (void *)&cnd->new_rate, 1);
+
+	return NOTIFY_OK;
+}
+
+static struct notifier_block twd_clk_nb = {
+	.notifier_call = twd_rate_change,
+};
+
+static int twd_clk_init(void)
+{
+	if (twd_evt && *__this_cpu_ptr(twd_evt) && !IS_ERR(twd_clk))
+		return clk_notifier_register(twd_clk, &twd_clk_nb);
+
+	return 0;
+}
+core_initcall(twd_clk_init);
+
+#elif defined (CONFIG_CPU_FREQ)
+
+#include <linux/cpufreq.h>
 
 /*
  * Updates clockevent frequency when the cpu frequency changes.

arch/m68k/platform/coldfire/clk.c

@@ -146,9 +146,3 @@ struct clk_ops clk_ops1 = {
 };
 #endif /* MCFPM_PPMCR1 */
 #endif /* MCFPM_PPMCR0 */
-
-struct clk *devm_clk_get(struct device *dev, const char *id)
-{
-	return NULL;
-}
-EXPORT_SYMBOL(devm_clk_get);

drivers/clk/Makefile

@@ -1,4 +1,5 @@
 # common clock types
+obj-$(CONFIG_HAVE_CLK)		+= clk-devres.o
 obj-$(CONFIG_CLKDEV_LOOKUP)	+= clkdev.o
 obj-$(CONFIG_COMMON_CLK)	+= clk.o clk-fixed-rate.o clk-gate.o \
 				   clk-mux.o clk-divider.o clk-fixed-factor.o

drivers/clk/clk-devres.c

@@ -0,0 +1,55 @@
+/*
+ * 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/clk.h>
+#include <linux/device.h>
+#include <linux/export.h>
+#include <linux/gfp.h>
+
+static void devm_clk_release(struct device *dev, void *res)
+{
+	clk_put(*(struct clk **)res);
+}
+
+struct clk *devm_clk_get(struct device *dev, const char *id)
+{
+	struct clk **ptr, *clk;
+
+	ptr = devres_alloc(devm_clk_release, sizeof(*ptr), GFP_KERNEL);
+	if (!ptr)
+		return ERR_PTR(-ENOMEM);
+
+	clk = clk_get(dev, id);
+	if (!IS_ERR(clk)) {
+		*ptr = clk;
+		devres_add(dev, ptr);
+	} else {
+		devres_free(ptr);
+	}
+
+	return clk;
+}
+EXPORT_SYMBOL(devm_clk_get);
+
+static int devm_clk_match(struct device *dev, void *res, void *data)
+{
+	struct clk **c = res;
+	if (!c || !*c) {
+		WARN_ON(!c || !*c);
+		return 0;
+	}
+	return *c == data;
+}
+
+void devm_clk_put(struct device *dev, struct clk *clk)
+{
+	int ret;
+
+	ret = devres_release(dev, devm_clk_release, devm_clk_match, clk);
+
+	WARN_ON(ret);
+}
+EXPORT_SYMBOL(devm_clk_put);

drivers/clk/clkdev.c

@@ -171,51 +171,6 @@ void clk_put(struct clk *clk)
 }
 EXPORT_SYMBOL(clk_put);
 
-static void devm_clk_release(struct device *dev, void *res)
-{
-	clk_put(*(struct clk **)res);
-}
-
-struct clk *devm_clk_get(struct device *dev, const char *id)
-{
-	struct clk **ptr, *clk;
-
-	ptr = devres_alloc(devm_clk_release, sizeof(*ptr), GFP_KERNEL);
-	if (!ptr)
-		return ERR_PTR(-ENOMEM);
-
-	clk = clk_get(dev, id);
-	if (!IS_ERR(clk)) {
-		*ptr = clk;
-		devres_add(dev, ptr);
-	} else {
-		devres_free(ptr);
-	}
-
-	return clk;
-}
-EXPORT_SYMBOL(devm_clk_get);
-
-static int devm_clk_match(struct device *dev, void *res, void *data)
-{
-	struct clk **c = res;
-	if (!c || !*c) {
-		WARN_ON(!c || !*c);
-		return 0;
-	}
-	return *c == data;
-}
-
-void devm_clk_put(struct device *dev, struct clk *clk)
-{
-	int ret;
-
-	ret = devres_destroy(dev, devm_clk_release, devm_clk_match, clk);
-
-	WARN_ON(ret);
-}
-EXPORT_SYMBOL(devm_clk_put);
-
 void clkdev_add(struct clk_lookup *cl)
 {
 	mutex_lock(&clocks_mutex);