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

Pull ARM SoC power management and clock changes from Olof Johansson:
 "This branch contains a largeish set of updates of power management and
  clock setup.  The bulk of it is for OMAP/AM33xx platforms, but also a
  few around hotplug/suspend/resume on Exynos.

  It includes a split-up of some of the OMAP clock data into separate
  files which adds to the diffstat, but gross delta is fairly reasonable."

* tag 'pm-merge' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (60 commits)
  ARM: OMAP: Move plat-omap/dma-omap.h to include/linux/omap-dma.h
  ASoC: OMAP: mcbsp fixes for enabling ARM multiplatform support
  watchdog: OMAP: fixup for ARM multiplatform support
  ARM: EXYNOS: Add flush_cache_all in suspend finisher
  ARM: EXYNOS: Remove scu_enable from cpuidle
  ARM: EXYNOS: Fix soft reboot hang after suspend/resume
  ARM: EXYNOS: Add support for rtc wakeup
  ARM: EXYNOS: fix the hotplug for Cortex-A15
  ARM: OMAP2+: omap_device: Correct resource handling for DT boot
  ARM: OMAP2+: hwmod: Add possibility to count hwmod resources based on type
  ARM: OMAP2+: hwmod: Add support for per hwmod/module context lost count
  ARM: OMAP2+: PRM: initialize some PRM functions early
  ARM: OMAP2+: voltage: fixup oscillator handling when CONFIG_PM=n
  ARM: OMAP4: USB: power down MUSB PHY during boot
  ARM: OMAP2+: clock: Cleanup !CONFIG_COMMON_CLK parts
  ARM: OMAP2xxx: clock: drop obsolete clock data
  ARM: OMAP2: clock: Cleanup !CONFIG_COMMON_CLK parts
  ARM: OMAP3+: DPLL: drop !CONFIG_COMMON_CLK sections
  ARM: AM33xx: clock: drop obsolete clock data
  ARM: OMAP3xxx: clk: drop obsolete clock data
  ...

arch/arm/mach-exynos/common.c

@@ -680,6 +680,8 @@ void __init exynos5_init_irq(void)
 	 * uses GIC instead of VIC.
 	 */
 	s5p_init_irq(NULL, 0);
+
+	gic_arch_extn.irq_set_wake = s3c_irq_wake;
 }
 
 struct bus_type exynos_subsys = {

arch/arm/mach-exynos/cpuidle.c

@@ -116,6 +116,7 @@ static int exynos4_enter_core0_aftr(struct cpuidle_device *dev,
 	cpu_suspend(0, idle_finisher);
 
 #ifdef CONFIG_SMP
+	if (!soc_is_exynos5250())
 		scu_enable(S5P_VA_SCU);
 #endif
 	cpu_pm_exit();

arch/arm/mach-exynos/hotplug.c

@@ -20,10 +20,11 @@
 #include <asm/smp_plat.h>
 
 #include <mach/regs-pmu.h>
+#include <plat/cpu.h>
 
 #include "common.h"
 
-static inline void cpu_enter_lowpower(void)
+static inline void cpu_enter_lowpower_a9(void)
 {
 	unsigned int v;
 
@@ -45,6 +46,35 @@ static inline void cpu_enter_lowpower(void)
 	  : "cc");
 }
 
+static inline void cpu_enter_lowpower_a15(void)
+{
+	unsigned int v;
+
+	asm volatile(
+	"	mrc	p15, 0, %0, c1, c0, 0\n"
+	"	bic	%0, %0, %1\n"
+	"	mcr	p15, 0, %0, c1, c0, 0\n"
+	  : "=&r" (v)
+	  : "Ir" (CR_C)
+	  : "cc");
+
+	flush_cache_louis();
+
+	asm volatile(
+	/*
+	* Turn off coherency
+	*/
+	"	mrc	p15, 0, %0, c1, c0, 1\n"
+	"	bic	%0, %0, %1\n"
+	"	mcr	p15, 0, %0, c1, c0, 1\n"
+	: "=&r" (v)
+	: "Ir" (0x40)
+	: "cc");
+
+	isb();
+	dsb();
+}
+
 static inline void cpu_leave_lowpower(void)
 {
 	unsigned int v;
@@ -103,11 +133,20 @@ static inline void platform_do_lowpower(unsigned int cpu, int *spurious)
 void __ref exynos_cpu_die(unsigned int cpu)
 {
 	int spurious = 0;
+	int primary_part = 0;
 
 	/*
-	 * we're ready for shutdown now, so do it
+	 * we're ready for shutdown now, so do it.
+	 * Exynos4 is A9 based while Exynos5 is A15; check the CPU part
+	 * number by reading the Main ID register and then perform the
+	 * appropriate sequence for entering low power.
 	 */
-	cpu_enter_lowpower();
+	asm("mrc p15, 0, %0, c0, c0, 0" : "=r"(primary_part) : : "cc");
+	if ((primary_part & 0xfff0) == 0xc0f0)
+		cpu_enter_lowpower_a15();
+	else
+		cpu_enter_lowpower_a9();
+
 	platform_do_lowpower(cpu, &spurious);
 
 	/*

arch/arm/mach-exynos/pm.c

@@ -81,6 +81,9 @@ static int exynos_cpu_suspend(unsigned long arg)
 	outer_flush_all();
 #endif
 
+	if (soc_is_exynos5250())
+		flush_cache_all();
+
 	/* issue the standby signal into the pm unit. */
 	cpu_do_idle();
 
@@ -312,6 +315,10 @@ static void exynos_pm_resume(void)
 	}
 
 early_wakeup:
+
+	/* Clear SLEEP mode set in INFORM1 */
+	__raw_writel(0x0, S5P_INFORM1);
+
 	return;
 }
 

arch/arm/mach-omap1/board-h2.c

@@ -39,7 +39,7 @@
 #include <asm/mach/map.h>
 
 #include <mach/mux.h>
-#include <plat-omap/dma-omap.h>
+#include <linux/omap-dma.h>
 #include <mach/tc.h>
 #include <mach/irda.h>
 #include <linux/platform_data/keypad-omap.h>

arch/arm/mach-omap1/board-h3.c

@@ -43,7 +43,7 @@
 #include <mach/mux.h>
 #include <mach/tc.h>
 #include <linux/platform_data/keypad-omap.h>
-#include <plat-omap/dma-omap.h>
+#include <linux/omap-dma.h>
 #include <mach/flash.h>
 
 #include <mach/hardware.h>

arch/arm/mach-omap1/board-palmte.c

@@ -37,7 +37,7 @@
 #include <mach/flash.h>
 #include <mach/mux.h>
 #include <mach/tc.h>
-#include <plat-omap/dma-omap.h>
+#include <linux/omap-dma.h>
 #include <mach/irda.h>
 #include <linux/platform_data/keypad-omap.h>
 

arch/arm/mach-omap1/board-palmtt.c

@@ -36,7 +36,7 @@
 
 #include <mach/flash.h>
 #include <mach/mux.h>
-#include <plat-omap/dma-omap.h>
+#include <linux/omap-dma.h>
 #include <mach/tc.h>
 #include <mach/irda.h>
 #include <linux/platform_data/keypad-omap.h>

arch/arm/mach-omap1/board-palmz71.c

@@ -38,7 +38,7 @@
 
 #include <mach/flash.h>
 #include <mach/mux.h>
-#include <plat-omap/dma-omap.h>
+#include <linux/omap-dma.h>
 #include <mach/tc.h>
 #include <mach/irda.h>
 #include <linux/platform_data/keypad-omap.h>

arch/arm/mach-omap1/board-sx1.c

@@ -36,7 +36,7 @@
 
 #include <mach/flash.h>
 #include <mach/mux.h>
-#include <plat-omap/dma-omap.h>
+#include <linux/omap-dma.h>
 #include <mach/irda.h>
 #include <mach/tc.h>
 #include <mach/board-sx1.h>

arch/arm/mach-omap1/dma.c

@@ -25,7 +25,7 @@
 #include <linux/device.h>
 #include <linux/io.h>
 
-#include <plat-omap/dma-omap.h>
+#include <linux/omap-dma.h>
 #include <mach/tc.h>
 
 #include <mach/irqs.h>

arch/arm/mach-omap1/io.c

@@ -18,7 +18,7 @@
 
 #include <mach/mux.h>
 #include <mach/tc.h>
-#include <plat-omap/dma-omap.h>
+#include <linux/omap-dma.h>
 
 #include "iomap.h"
 #include "common.h"

arch/arm/mach-omap1/lcd_dma.c

@@ -27,7 +27,7 @@
 #include <linux/interrupt.h>
 #include <linux/io.h>
 
-#include <plat-omap/dma-omap.h>
+#include <linux/omap-dma.h>
 
 #include <mach/hardware.h>
 #include <mach/lcdc.h>

arch/arm/mach-omap1/mcbsp.c

@@ -19,7 +19,7 @@
 #include <linux/platform_device.h>
 #include <linux/slab.h>
 
-#include <plat-omap/dma-omap.h>
+#include <linux/omap-dma.h>
 #include <mach/mux.h>
 #include "soc.h"
 #include <linux/platform_data/asoc-ti-mcbsp.h>

arch/arm/mach-omap1/pm.c

@@ -52,7 +52,7 @@
 
 #include <mach/tc.h>
 #include <mach/mux.h>
-#include <plat-omap/dma-omap.h>
+#include <linux/omap-dma.h>
 #include <plat/dmtimer.h>
 
 #include <mach/irqs.h>

arch/arm/mach-omap2/Kconfig

@@ -34,6 +34,7 @@ config ARCH_OMAP2
 	select CPU_V6
 	select MULTI_IRQ_HANDLER
 	select SOC_HAS_OMAP2_SDRC
+	select COMMON_CLK
 
 config ARCH_OMAP3
 	bool "TI OMAP3"
@@ -47,6 +48,7 @@ config ARCH_OMAP3
 	select PM_OPP if PM
 	select PM_RUNTIME if CPU_IDLE
 	select SOC_HAS_OMAP2_SDRC
+	select COMMON_CLK
 	select USB_ARCH_HAS_EHCI if USB_SUPPORT
 
 config ARCH_OMAP4
@@ -68,6 +70,7 @@ config ARCH_OMAP4
 	select PM_OPP if PM
 	select PM_RUNTIME if CPU_IDLE
 	select USB_ARCH_HAS_EHCI if USB_SUPPORT
+	select COMMON_CLK
 
 config SOC_OMAP5
 	bool "TI OMAP5"
@@ -77,6 +80,7 @@ config SOC_OMAP5
 	select CPU_V7
 	select HAVE_SMP
 	select SOC_HAS_REALTIME_COUNTER
+	select COMMON_CLK
 
 comment "OMAP Core Type"
 	depends on ARCH_OMAP2
@@ -111,6 +115,7 @@ config SOC_AM33XX
 	select ARM_CPU_SUSPEND if PM
 	select CPU_V7
 	select MULTI_IRQ_HANDLER
+	select COMMON_CLK
 
 config OMAP_PACKAGE_ZAF
        bool

arch/arm/mach-omap2/Makefile

@@ -160,17 +160,17 @@ obj-$(CONFIG_ARCH_OMAP2)		+= clkt2xxx_dpllcore.o
 obj-$(CONFIG_ARCH_OMAP2)		+= clkt2xxx_virt_prcm_set.o
 obj-$(CONFIG_ARCH_OMAP2)		+= clkt2xxx_apll.o clkt2xxx_osc.o
 obj-$(CONFIG_ARCH_OMAP2)		+= clkt2xxx_dpll.o clkt_iclk.o
-obj-$(CONFIG_SOC_OMAP2420)		+= clock2420_data.o
-obj-$(CONFIG_SOC_OMAP2430)		+= clock2430.o clock2430_data.o
+obj-$(CONFIG_SOC_OMAP2420)		+= cclock2420_data.o
+obj-$(CONFIG_SOC_OMAP2430)		+= clock2430.o cclock2430_data.o
 obj-$(CONFIG_ARCH_OMAP3)		+= $(clock-common) clock3xxx.o
 obj-$(CONFIG_ARCH_OMAP3)		+= clock34xx.o clkt34xx_dpll3m2.o
 obj-$(CONFIG_ARCH_OMAP3)		+= clock3517.o clock36xx.o
-obj-$(CONFIG_ARCH_OMAP3)		+= dpll3xxx.o clock3xxx_data.o
+obj-$(CONFIG_ARCH_OMAP3)		+= dpll3xxx.o cclock3xxx_data.o
 obj-$(CONFIG_ARCH_OMAP3)		+= clkt_iclk.o
-obj-$(CONFIG_ARCH_OMAP4)		+= $(clock-common) clock44xx_data.o
+obj-$(CONFIG_ARCH_OMAP4)		+= $(clock-common) cclock44xx_data.o
 obj-$(CONFIG_ARCH_OMAP4)		+= dpll3xxx.o dpll44xx.o
 obj-$(CONFIG_SOC_AM33XX)		+= $(clock-common) dpll3xxx.o
-obj-$(CONFIG_SOC_AM33XX)		+= clock33xx_data.o
+obj-$(CONFIG_SOC_AM33XX)		+= cclock33xx_data.o
 obj-$(CONFIG_SOC_OMAP5)			+= $(clock-common)
 obj-$(CONFIG_SOC_OMAP5)			+= dpll3xxx.o dpll44xx.o
 

arch/arm/mach-omap2/board-3430sdp.c

@@ -31,7 +31,7 @@
 #include <asm/mach/map.h>
 
 #include "common.h"
-#include <plat-omap/dma-omap.h>
+#include <linux/omap-dma.h>
 #include <video/omapdss.h>
 #include <video/omap-panel-tfp410.h>
 

arch/arm/mach-omap2/board-h4.c

@@ -32,7 +32,7 @@
 #include <asm/mach/arch.h>
 #include <asm/mach/map.h>
 
-#include <plat-omap/dma-omap.h>
+#include <linux/omap-dma.h>
 #include <plat/debug-devices.h>
 
 #include <video/omapdss.h>

arch/arm/mach-omap2/board-rx51-peripherals.c

@@ -31,7 +31,7 @@
 #include <asm/system_info.h>
 
 #include "common.h"
-#include <plat-omap/dma-omap.h>
+#include <linux/omap-dma.h>
 #include "gpmc-smc91x.h"
 
 #include "board-rx51.h"

arch/arm/mach-omap2/board-rx51.c

@@ -24,7 +24,7 @@
 #include <asm/mach/arch.h>
 #include <asm/mach/map.h>
 
-#include <plat-omap/dma-omap.h>
+#include <linux/omap-dma.h>
 
 #include "common.h"
 #include "mux.h"

arch/arm/mach-omap2/clkt2xxx_apll.c

@@ -38,62 +38,88 @@
 
 /* Private functions */
 
-static int _apll96_enable(struct clk *clk)
+/**
+ * omap2xxx_clk_apll_locked - is the APLL locked?
+ * @hw: struct clk_hw * of the APLL to check
+ *
+ * If the APLL IP block referred to by @hw indicates that it's locked,
+ * return true; otherwise, return false.
+ */
+static bool omap2xxx_clk_apll_locked(struct clk_hw *hw)
+{
+	struct clk_hw_omap *clk = to_clk_hw_omap(hw);
+	u32 r, apll_mask;
+
+	apll_mask = EN_APLL_LOCKED << clk->enable_bit;
+
+	r = omap2_cm_read_mod_reg(PLL_MOD, CM_CLKEN);
+
+	return ((r & apll_mask) == apll_mask) ? true : false;
+}
+
+int omap2_clk_apll96_enable(struct clk_hw *hw)
 {
 	return omap2xxx_cm_apll96_enable();
 }
 
-static int _apll54_enable(struct clk *clk)
+int omap2_clk_apll54_enable(struct clk_hw *hw)
 {
 	return omap2xxx_cm_apll54_enable();
 }
 
-static void _apll96_allow_idle(struct clk *clk)
+static void _apll96_allow_idle(struct clk_hw_omap *clk)
 {
 	omap2xxx_cm_set_apll96_auto_low_power_stop();
 }
 
-static void _apll96_deny_idle(struct clk *clk)
+static void _apll96_deny_idle(struct clk_hw_omap *clk)
 {
 	omap2xxx_cm_set_apll96_disable_autoidle();
 }
 
-static void _apll54_allow_idle(struct clk *clk)
+static void _apll54_allow_idle(struct clk_hw_omap *clk)
 {
 	omap2xxx_cm_set_apll54_auto_low_power_stop();
 }
 
-static void _apll54_deny_idle(struct clk *clk)
+static void _apll54_deny_idle(struct clk_hw_omap *clk)
 {
 	omap2xxx_cm_set_apll54_disable_autoidle();
 }
 
-static void _apll96_disable(struct clk *clk)
+void omap2_clk_apll96_disable(struct clk_hw *hw)
 {
 	omap2xxx_cm_apll96_disable();
 }
 
-static void _apll54_disable(struct clk *clk)
+void omap2_clk_apll54_disable(struct clk_hw *hw)
 {
 	omap2xxx_cm_apll54_disable();
 }
 
-/* Public data */
+unsigned long omap2_clk_apll54_recalc(struct clk_hw *hw,
+				      unsigned long parent_rate)
+{
+	return (omap2xxx_clk_apll_locked(hw)) ? 54000000 : 0;
+}
 
-const struct clkops clkops_apll96 = {
-	.enable		= _apll96_enable,
-	.disable	= _apll96_disable,
-	.allow_idle	= _apll96_allow_idle,
-	.deny_idle	= _apll96_deny_idle,
-};
+unsigned long omap2_clk_apll96_recalc(struct clk_hw *hw,
+				      unsigned long parent_rate)
+{
+	return (omap2xxx_clk_apll_locked(hw)) ? 96000000 : 0;
+}
 
-const struct clkops clkops_apll54 = {
-	.enable		= _apll54_enable,
-	.disable	= _apll54_disable,
+/* Public data */
+const struct clk_hw_omap_ops clkhwops_apll54 = {
 	.allow_idle	= _apll54_allow_idle,
 	.deny_idle	= _apll54_deny_idle,
 };
 
+const struct clk_hw_omap_ops clkhwops_apll96 = {
+	.allow_idle	= _apll96_allow_idle,
+	.deny_idle	= _apll96_deny_idle,
+};
+
 /* Public functions */
 
 u32 omap2xxx_get_apll_clkin(void)

arch/arm/mach-omap2/clkt2xxx_dpll.c

@@ -29,7 +29,7 @@
  * REVISIT: DPLL can optionally enter low-power bypass by writing 0x1
  * instead.  Add some mechanism to optionally enter this mode.
  */
-static void _allow_idle(struct clk *clk)
+static void _allow_idle(struct clk_hw_omap *clk)
 {
 	if (!clk || !clk->dpll_data)
 		return;
@@ -43,7 +43,7 @@ static void _allow_idle(struct clk *clk)
  *
  * Disable DPLL automatic idle control.  No return value.
  */
-static void _deny_idle(struct clk *clk)
+static void _deny_idle(struct clk_hw_omap *clk)
 {
 	if (!clk || !clk->dpll_data)
 		return;
@@ -53,9 +53,7 @@ static void _deny_idle(struct clk *clk)
 
 
 /* Public data */
-
-const struct clkops clkops_omap2xxx_dpll_ops = {
+const struct clk_hw_omap_ops clkhwops_omap2xxx_dpll = {
 	.allow_idle	= _allow_idle,
 	.deny_idle	= _deny_idle,
 };
-

arch/arm/mach-omap2/clkt2xxx_dpllcore.c

@@ -40,7 +40,7 @@
  * (currently defined as "dpll_ck" in the OMAP2xxx clock tree).  Set
  * during dpll_ck init and used later by omap2xxx_clk_get_core_rate().
  */
-static struct clk *dpll_core_ck;
+static struct clk_hw_omap *dpll_core_ck;
 
 /**
  * omap2xxx_clk_get_core_rate - return the CORE_CLK rate
@@ -104,13 +104,16 @@ static long omap2_dpllcore_round_rate(unsigned long target_rate)
 
 }
 
-unsigned long omap2_dpllcore_recalc(struct clk *clk)
+unsigned long omap2_dpllcore_recalc(struct clk_hw *hw,
+				    unsigned long parent_rate)
 {
 	return omap2xxx_clk_get_core_rate();
 }
 
-int omap2_reprogram_dpllcore(struct clk *clk, unsigned long rate)
+int omap2_reprogram_dpllcore(struct clk_hw *hw, unsigned long rate,
+			     unsigned long parent_rate)
 {
+	struct clk_hw_omap *clk = to_clk_hw_omap(hw);
 	u32 cur_rate, low, mult, div, valid_rate, done_rate;
 	u32 bypass = 0;
 	struct prcm_config tmpset;
@@ -188,8 +191,8 @@ int omap2_reprogram_dpllcore(struct clk *clk, unsigned long rate)
  * statically defined, this code may need to change to increment some
  * kind of use count on dpll_ck.
  */
-void omap2xxx_clkt_dpllcore_init(struct clk *clk)
+void omap2xxx_clkt_dpllcore_init(struct clk_hw *hw)
 {
 	WARN(dpll_core_ck, "dpll_core_ck already set - should never happen");
-	dpll_core_ck = clk;
+	dpll_core_ck = to_clk_hw_omap(hw);
 }

arch/arm/mach-omap2/clkt2xxx_osc.c

@@ -35,7 +35,7 @@
  * clk_enable/clk_disable()-based usecounting for osc_ck should be
  * replaced with autoidle-based usecounting.
  */
-static int omap2_enable_osc_ck(struct clk *clk)
+int omap2_enable_osc_ck(struct clk_hw *clk)
 {
 	u32 pcc;
 
@@ -53,7 +53,7 @@ static int omap2_enable_osc_ck(struct clk *clk)
  * clk_enable/clk_disable()-based usecounting for osc_ck should be
  * replaced with autoidle-based usecounting.
  */
-static void omap2_disable_osc_ck(struct clk *clk)
+void omap2_disable_osc_ck(struct clk_hw *clk)
 {
 	u32 pcc;
 
@@ -62,13 +62,8 @@ static void omap2_disable_osc_ck(struct clk *clk)
 	__raw_writel(pcc | OMAP_AUTOEXTCLKMODE_MASK, prcm_clksrc_ctrl);
 }
 
-const struct clkops clkops_oscck = {
-	.enable		= omap2_enable_osc_ck,
-	.disable	= omap2_disable_osc_ck,
-};
-
-unsigned long omap2_osc_clk_recalc(struct clk *clk)
+unsigned long omap2_osc_clk_recalc(struct clk_hw *clk,
+				   unsigned long parent_rate)
 {
 	return omap2xxx_get_apll_clkin() * omap2xxx_get_sysclkdiv();
 }
-

arch/arm/mach-omap2/clkt2xxx_sys.c

@@ -40,9 +40,8 @@ u32 omap2xxx_get_sysclkdiv(void)
 	return div;
 }
 
-unsigned long omap2xxx_sys_clk_recalc(struct clk *clk)
+unsigned long omap2xxx_sys_clk_recalc(struct clk_hw *clk,
+				      unsigned long parent_rate)
 {
-	return clk->parent->rate / omap2xxx_get_sysclkdiv();
+	return parent_rate / omap2xxx_get_sysclkdiv();
 }
-
-

arch/arm/mach-omap2/clkt2xxx_virt_prcm_set.c

@@ -58,7 +58,8 @@ static unsigned long sys_ck_rate;
  *
  * Set virt_prcm_set's rate to the mpu_speed field of the current PRCM set.
  */
-unsigned long omap2_table_mpu_recalc(struct clk *clk)
+unsigned long omap2_table_mpu_recalc(struct clk_hw *clk,
+				     unsigned long parent_rate)
 {
 	return curr_prcm_set->mpu_speed;
 }
@@ -70,7 +71,8 @@ unsigned long omap2_table_mpu_recalc(struct clk *clk)
  * Some might argue L3-DDR, others ARM, others IVA. This code is simple and
  * just uses the ARM rates.
  */
-long omap2_round_to_table_rate(struct clk *clk, unsigned long rate)
+long omap2_round_to_table_rate(struct clk_hw *hw, unsigned long rate,
+			       unsigned long *parent_rate)
 {
 	const struct prcm_config *ptr;
 	long highest_rate;
@@ -93,7 +95,8 @@ long omap2_round_to_table_rate(struct clk *clk, unsigned long rate)
 }
 
 /* Sets basic clocks based on the specified rate */
-int omap2_select_table_rate(struct clk *clk, unsigned long rate)
+int omap2_select_table_rate(struct clk_hw *hw, unsigned long rate,
+			    unsigned long parent_rate)
 {
 	u32 cur_rate, done_rate, bypass = 0, tmp;
 	const struct prcm_config *prcm;