Merge tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull "ARM: global cleanups" from Arnd Bergmann:
 "Quite a bit of code gets removed, and some stuff moved around, mostly
  the old samsung s3c24xx stuff.  There should be no functional changes
  in this series otherwise.  Some cleanups have dependencies on other
  arm-soc branches and will be sent in the second round.

  Signed-off-by: Arnd Bergmann <arnd@arndb.de>"

Fixed up trivial conflicts mainly due to #include's being changes on
both sides.

* tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (121 commits)
  ep93xx: Remove unnecessary includes of ep93xx-regs.h
  ep93xx: Move EP93XX_SYSCON defines to SoC private header
  ep93xx: Move crunch code to mach-ep93xx directory
  ep93xx: Make syscon access functions private to SoC
  ep93xx: Configure GPIO ports in core code
  ep93xx: Move peripheral defines to local SoC header
  ep93xx: Convert the watchdog driver into a platform device.
  ep93xx: Use ioremap for backlight driver
  ep93xx: Move GPIO defines to gpio-ep93xx.h
  ep93xx: Don't use system controller defines in audio drivers
  ep93xx: Move PHYS_BASE defines to local SoC header file
  ARM: EXYNOS: Add clock register addresses for EXYNOS4X12 bus devfreq driver
  ARM: EXYNOS: add clock registers for exynos4x12-cpufreq
  PM / devfreq: update the name of EXYNOS clock registers that were omitted
  PM / devfreq: update the name of EXYNOS clock register
  ARM: EXYNOS: change the prefix S5P_ to EXYNOS4_ for clock
  ARM: EXYNOS: use static declaration on regarding clock
  ARM: EXYNOS: replace clock.c for other new EXYNOS SoCs
  ARM: OMAP2+: Fix build error after merge
  ARM: S3C24XX: remove call to s3c24xx_setup_clocks
  ...

1 files changed, 91 insertions, 22 deletions

diff --git a/arch/arm/mach-omap2/pm.c b/arch/arm/mach-omap2/pm.c
index 184ae21feea7..52787b0eaec6 100644
--- a/arch/arm/mach-omap2/pm.c
+++ b/arch/arm/mach-omap2/pm.c
@@ -15,11 +15,13 @@
 #include <linux/err.h>
 #include <linux/opp.h>
 #include <linux/export.h>
+#include <linux/suspend.h>
 
 #include <plat/omap-pm.h>
 #include <plat/omap_device.h>
 #include "common.h"
 
+#include "prcm-common.h"
 #include "voltage.h"
 #include "powerdomain.h"
 #include "clockdomain.h"
@@ -28,6 +30,12 @@
 
 static struct omap_device_pm_latency *pm_lats;
 
+/*
+ * omap_pm_suspend: points to a function that does the SoC-specific
+ * suspend work
+ */
+int (*omap_pm_suspend)(void);
+
 static int __init _init_omap_device(char *name)
 {
 	struct omap_hwmod *oh;
@@ -68,32 +76,41 @@ static void __init omap2_init_processor_devices(void)
 #define FORCEWAKEUP_SWITCH	0
 #define LOWPOWERSTATE_SWITCH	1
 
+int __init omap_pm_clkdms_setup(struct clockdomain *clkdm, void *unused)
+{
+	if (clkdm->flags & CLKDM_CAN_ENABLE_AUTO)
+		clkdm_allow_idle(clkdm);
+	else if (clkdm->flags & CLKDM_CAN_FORCE_SLEEP &&
+		 atomic_read(&clkdm->usecount) == 0)
+		clkdm_sleep(clkdm);
+	return 0;
+}
+
 /*
  * This sets pwrdm state (other than mpu & core. Currently only ON &
  * RET are supported.
  */
-int omap_set_pwrdm_state(struct powerdomain *pwrdm, u32 state)
+int omap_set_pwrdm_state(struct powerdomain *pwrdm, u32 pwrst)
 {
-	u32 cur_state;
-	int sleep_switch = -1;
-	int ret = 0;
-	int hwsup = 0;
+	u8 curr_pwrst, next_pwrst;
+	int sleep_switch = -1, ret = 0, hwsup = 0;
 
-	if (pwrdm == NULL || IS_ERR(pwrdm))
+	if (!pwrdm || IS_ERR(pwrdm))
 		return -EINVAL;
 
-	while (!(pwrdm->pwrsts & (1 << state))) {
-		if (state == PWRDM_POWER_OFF)
+	while (!(pwrdm->pwrsts & (1 << pwrst))) {
+		if (pwrst == PWRDM_POWER_OFF)
 			return ret;
-		state--;
+		pwrst--;
 	}
 
-	cur_state = pwrdm_read_next_pwrst(pwrdm);
-	if (cur_state == state)
+	next_pwrst = pwrdm_read_next_pwrst(pwrdm);
+	if (next_pwrst == pwrst)
 		return ret;
 
-	if (pwrdm_read_pwrst(pwrdm) < PWRDM_POWER_ON) {
-		if ((pwrdm_read_pwrst(pwrdm) > state) &&
+	curr_pwrst = pwrdm_read_pwrst(pwrdm);
+	if (curr_pwrst < PWRDM_POWER_ON) {
+		if ((curr_pwrst > pwrst) &&
 			(pwrdm->flags & PWRDM_HAS_LOWPOWERSTATECHANGE)) {
 			sleep_switch = LOWPOWERSTATE_SWITCH;
 		} else {
@@ -103,12 +120,10 @@ int omap_set_pwrdm_state(struct powerdomain *pwrdm, u32 state)
 		}
 	}
 
-	ret = pwrdm_set_next_pwrst(pwrdm, state);
-	if (ret) {
-		pr_err("%s: unable to set state of powerdomain: %s\n",
+	ret = pwrdm_set_next_pwrst(pwrdm, pwrst);
+	if (ret)
+		pr_err("%s: unable to set power state of powerdomain: %s\n",
 		       __func__, pwrdm->name);
-		goto err;
-	}
 
 	switch (sleep_switch) {
 	case FORCEWAKEUP_SWITCH:
@@ -119,16 +134,16 @@ int omap_set_pwrdm_state(struct powerdomain *pwrdm, u32 state)
 		break;
 	case LOWPOWERSTATE_SWITCH:
 		pwrdm_set_lowpwrstchange(pwrdm);
+		pwrdm_wait_transition(pwrdm);
+		pwrdm_state_switch(pwrdm);
 		break;
-	default:
-		return ret;
 	}
 
-	pwrdm_state_switch(pwrdm);
-err:
 	return ret;
 }
 
+
+
 /*
  * This API is to be called during init to set the various voltage
  * domains to the voltage as per the opp table. Typically we boot up
@@ -199,6 +214,56 @@ exit:
 	return -EINVAL;
 }
 
+#ifdef CONFIG_SUSPEND
+static int omap_pm_enter(suspend_state_t suspend_state)
+{
+	int ret = 0;
+
+	if (!omap_pm_suspend)
+		return -ENOENT; /* XXX doublecheck */
+
+	switch (suspend_state) {
+	case PM_SUSPEND_STANDBY:
+	case PM_SUSPEND_MEM:
+		ret = omap_pm_suspend();
+		break;
+	default:
+		ret = -EINVAL;
+	}
+
+	return ret;
+}
+
+static int omap_pm_begin(suspend_state_t state)
+{
+	disable_hlt();
+	if (cpu_is_omap34xx())
+		omap_prcm_irq_prepare();
+	return 0;
+}
+
+static void omap_pm_end(void)
+{
+	enable_hlt();
+	return;
+}
+
+static void omap_pm_finish(void)
+{
+	if (cpu_is_omap34xx())
+		omap_prcm_irq_complete();
+}
+
+static const struct platform_suspend_ops omap_pm_ops = {
+	.begin		= omap_pm_begin,
+	.end		= omap_pm_end,
+	.enter		= omap_pm_enter,
+	.finish		= omap_pm_finish,
+	.valid		= suspend_valid_only_mem,
+};
+
+#endif /* CONFIG_SUSPEND */
+
 static void __init omap3_init_voltages(void)
 {
 	if (!cpu_is_omap34xx())
@@ -241,6 +306,10 @@ static int __init omap2_common_pm_late_init(void)
 	/* Smartreflex device init */
 	omap_devinit_smartreflex();
 
+#ifdef CONFIG_SUSPEND
+	suspend_set_ops(&omap_pm_ops);
+#endif
+
 	return 0;
 }
 late_initcall(omap2_common_pm_late_init);