diff mbox

[v8,2/2] ARM: EXYNOS: Move PMU specific definitions from common.h

Message ID 1412072481-22370-3-git-send-email-pankaj.dubey@samsung.com (mailing list archive)
State New, archived
Headers show

Commit Message

Pankaj Dubey Sept. 30, 2014, 10:21 a.m. UTC 
This patch moves PMU specific definitions into a new file
as exynos-pmu.h.
This will help in reducing dependency of common.h in pmu.c.

Signed-off-by: Pankaj Dubey <pankaj.dubey@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
---
 arch/arm/mach-exynos/common.h     |   17 -----------------
 arch/arm/mach-exynos/exynos-pmu.h |   24 ++++++++++++++++++++++++
 arch/arm/mach-exynos/pm.c         |    1 +
 arch/arm/mach-exynos/pmu.c        |   20 +++++++++++++++++++-
 arch/arm/mach-exynos/suspend.c    |    1 +
 5 files changed, 45 insertions(+), 18 deletions(-)
 create mode 100644 arch/arm/mach-exynos/exynos-pmu.h

Comments

Arnd Bergmann Sept. 30, 2014, 10:38 a.m. UTC | #1 
On Tuesday 30 September 2014 15:51:21 Pankaj Dubey wrote:
> 
> +static inline void pmu_raw_writel(u32 val, u32 offset)
> +{
> +       __raw_writel(val, pmu_base_addr + offset);
> +}
> +
> +static inline u32 pmu_raw_readl(u32 offset)
> +{
> +       return __raw_readl(pmu_base_addr + offset);
> +}
> +
> 

While you're at it, please convert these to use readl_relaxed() instead,
which is safe to use in drivers and works independent of CPU endianess.

	Arnd
Pankaj Dubey Oct. 1, 2014, 2:59 a.m. UTC | #2 
Hi Arnd,

On Tuesday, September 30, 2014 4:09 PM, Arnd Bergmann wrote,
> To: linux-arm-kernel@lists.infradead.org
> Cc: Pankaj Dubey; linux-kernel@vger.kernel.org;
linux-samsung-soc@vger.kernel.org;
> kgene.kim@samsung.com; linux@arm.linux.org.uk; naushad@samsung.com;
> tomasz.figa@gmail.com; thomas.ab@samsung.com; vikas.sajjan@samsung.com
> Subject: Re: [PATCH v8 2/2] ARM: EXYNOS: Move PMU specific definitions
from
> common.h
> 
> On Tuesday 30 September 2014 15:51:21 Pankaj Dubey wrote:
> >
> > +static inline void pmu_raw_writel(u32 val, u32 offset) {
> > +       __raw_writel(val, pmu_base_addr + offset); }
> > +
> > +static inline u32 pmu_raw_readl(u32 offset) {
> > +       return __raw_readl(pmu_base_addr + offset); }
> > +
> >
> 
> While you're at it, please convert these to use readl_relaxed() instead,
which is safe to
> use in drivers and works independent of CPU endianess.
> 

OK, I will update this. 

Thanks,
Pankaj Dubey
> 	Arnd
diff mbox

Patch

diff --git a/arch/arm/mach-exynos/common.h b/arch/arm/mach-exynos/common.h
index d4d09bc..431be1b 100644
--- a/arch/arm/mach-exynos/common.h
+++ b/arch/arm/mach-exynos/common.h
@@ -139,23 +139,6 @@  extern void exynos_cpu_resume_ns(void);
 
 extern struct smp_operations exynos_smp_ops;
 
-/* PMU(Power Management Unit) support */
-
-#define PMU_TABLE_END	(-1U)
-
-enum sys_powerdown {
-	SYS_AFTR,
-	SYS_LPA,
-	SYS_SLEEP,
-	NUM_SYS_POWERDOWN,
-};
-
-struct exynos_pmu_conf {
-	unsigned int offset;
-	unsigned int val[NUM_SYS_POWERDOWN];
-};
-
-extern void exynos_sys_powerdown_conf(enum sys_powerdown mode);
 extern void exynos_cpu_power_down(int cpu);
 extern void exynos_cpu_power_up(int cpu);
 extern int  exynos_cpu_power_state(int cpu);
diff --git a/arch/arm/mach-exynos/exynos-pmu.h b/arch/arm/mach-exynos/exynos-pmu.h
new file mode 100644
index 0000000..a2ab0d5
--- /dev/null
+++ b/arch/arm/mach-exynos/exynos-pmu.h
@@ -0,0 +1,24 @@ 
+/*
+ * Copyright (c) 2014 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com
+ *
+ * Header for EXYNOS PMU Driver support
+ *
+ * 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.
+ */
+
+#ifndef __EXYNOS_PMU_H
+#define __EXYNOS_PMU_H
+
+enum sys_powerdown {
+	SYS_AFTR,
+	SYS_LPA,
+	SYS_SLEEP,
+	NUM_SYS_POWERDOWN,
+};
+
+extern void exynos_sys_powerdown_conf(enum sys_powerdown mode);
+
+#endif /* __EXYNOS_PMU_H */
diff --git a/arch/arm/mach-exynos/pm.c b/arch/arm/mach-exynos/pm.c
index 4f10fa6..86f3ecd 100644
--- a/arch/arm/mach-exynos/pm.c
+++ b/arch/arm/mach-exynos/pm.c
@@ -26,6 +26,7 @@ 
 #include <plat/pm-common.h>
 
 #include "common.h"
+#include "exynos-pmu.h"
 #include "regs-pmu.h"
 #include "regs-sys.h"
 
diff --git a/arch/arm/mach-exynos/pmu.c b/arch/arm/mach-exynos/pmu.c
index 1f5aaa7..87613e0 100644
--- a/arch/arm/mach-exynos/pmu.c
+++ b/arch/arm/mach-exynos/pmu.c
@@ -13,9 +13,16 @@ 
 #include <linux/of.h>
 #include <linux/platform_device.h>
 
-#include "common.h"
+#include "exynos-pmu.h"
 #include "regs-pmu.h"
 
+#define PMU_TABLE_END	(-1U)
+
+struct exynos_pmu_conf {
+	unsigned int offset;
+	unsigned int val[NUM_SYS_POWERDOWN];
+};
+
 struct exynos_pmu_data {
 	const struct exynos_pmu_conf *pmu_config;
 	const struct exynos_pmu_conf *pmu_config_extra;
@@ -29,8 +36,19 @@  struct exynos_pmu_context {
 	const struct exynos_pmu_data *pmu_data;
 };
 
+static void __iomem *pmu_base_addr;
 static struct exynos_pmu_context *pmu_context;
 
+static inline void pmu_raw_writel(u32 val, u32 offset)
+{
+	__raw_writel(val, pmu_base_addr + offset);
+}
+
+static inline u32 pmu_raw_readl(u32 offset)
+{
+	return __raw_readl(pmu_base_addr + offset);
+}
+
 static const struct exynos_pmu_conf exynos4210_pmu_config[] = {
 	/* { .offset = offset, .val = { AFTR, LPA, SLEEP } */
 	{ S5P_ARM_CORE0_LOWPWR,			{ 0x0, 0x0, 0x2 } },
diff --git a/arch/arm/mach-exynos/suspend.c b/arch/arm/mach-exynos/suspend.c
index f5d9773..079d999 100644
--- a/arch/arm/mach-exynos/suspend.c
+++ b/arch/arm/mach-exynos/suspend.c
@@ -33,6 +33,7 @@ 
 #include "common.h"
 #include "regs-pmu.h"
 #include "regs-sys.h"
+#include "exynos-pmu.h"
 
 #define S5P_CHECK_SLEEP 0x00000BAD