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Message-ID: <1423709330-8235-1-git-send-email-wenyou.yang@atmel.com>
Date: Thu, 12 Feb 2015 10:48:50 +0800
From: Wenyou Yang <wenyou.yang@...el.com>
To: <nicolas.ferre@...el.com>, <linux@...im.org.za>,
<linux@....linux.org.uk>
CC: <linux-arm-kernel@...ts.infradead.org>,
<linux-kernel@...r.kernel.org>, <sylvain.rochet@...secur.com>,
<alexandre.belloni@...e-electrons.com>,
<patrice.vilchez@...el.com>, <sergei.shtylyov@...entembedded.com>,
<mark.rutland@....com>, <lorenzo.pieralisi@....com>,
<wenyou.yang@...el.com>
Subject: [PATCH 5/6] pm: at91: rename function name: at91_slow_clock()-->at91_pm_suspend_sram_fn
As renaming file name, rename the file name at91_slow_clock()--> at91_pm_suspend_sram_fn,
rename the function handler's name at the same time.
Signed-off-by: Wenyou Yang <wenyou.yang@...el.com>
Acked-by: Alexandre Belloni <alexandre.belloni@...e-electrons.com>
---
arch/arm/mach-at91/pm.c | 27 ++++++++++++++-------------
arch/arm/mach-at91/pm_suspend.S | 26 +++++++++++---------------
2 files changed, 25 insertions(+), 28 deletions(-)
diff --git a/arch/arm/mach-at91/pm.c b/arch/arm/mach-at91/pm.c
index d03d6a7..722f921 100644
--- a/arch/arm/mach-at91/pm.c
+++ b/arch/arm/mach-at91/pm.c
@@ -132,13 +132,12 @@ int at91_suspend_entering_slow_clock(void)
}
EXPORT_SYMBOL(at91_suspend_entering_slow_clock);
-
-static void (*slow_clock)(void __iomem *pmc, void __iomem *ramc0,
+static void (*at91_suspend_sram_fn)(void __iomem *pmc, void __iomem *ramc0,
void __iomem *ramc1, int memctrl);
-extern void at91_slow_clock(void __iomem *pmc, void __iomem *ramc0,
+extern void at91_pm_suspend_in_sram(void __iomem *pmc, void __iomem *ramc0,
void __iomem *ramc1, int memctrl);
-extern u32 at91_slow_clock_sz;
+extern u32 at91_pm_suspend_in_sram_sz;
static void at91_pm_suspend(suspend_state_t state)
{
@@ -147,8 +146,8 @@ static void at91_pm_suspend(suspend_state_t state)
pm_data |= (state == PM_SUSPEND_MEM) ?
AT91_PM_MODE(AT91_PM_SLOW_CLOCK) : 0;
- slow_clock(at91_pmc_base, at91_ramc_base[0],
- at91_ramc_base[1], pm_data);
+ at91_suspend_sram_fn(at91_pmc_base, at91_ramc_base[0],
+ at91_ramc_base[1], pm_data);
}
static int at91_pm_enter(suspend_state_t state)
@@ -289,21 +288,23 @@ static void __init at91_pm_sram_init(void)
goto put_node;
}
- sram_base = gen_pool_alloc(sram_pool, at91_slow_clock_sz);
+ sram_base = gen_pool_alloc(sram_pool, at91_pm_suspend_in_sram_sz);
if (!sram_base) {
- pr_warn("%s: unable to alloc ocram!\n", __func__);
+ pr_warn("%s: unable to alloc sram!\n", __func__);
goto put_node;
}
sram_pbase = gen_pool_virt_to_phys(sram_pool, sram_base);
- slow_clock = __arm_ioremap_exec(sram_pbase, at91_slow_clock_sz, false);
- if (!slow_clock) {
+ at91_suspend_sram_fn = __arm_ioremap_exec(sram_pbase,
+ at91_pm_suspend_in_sram_sz, false);
+ if (!at91_suspend_sram_fn) {
pr_warn("SRAM: Could not map\n");
goto put_node;
}
- /* Copy the slow_clock handler to SRAM */
- slow_clock = fncpy(slow_clock, &at91_slow_clock, at91_slow_clock_sz);
+ /* Copy the pm suspend handler to SRAM */
+ at91_suspend_sram_fn = fncpy(at91_suspend_sram_fn,
+ &at91_pm_suspend_in_sram, at91_pm_suspend_in_sram_sz);
put_node:
of_node_put(node);
@@ -316,7 +317,7 @@ static void __init at91_pm_init(void)
if (at91_cpuidle_device.dev.platform_data)
platform_device_register(&at91_cpuidle_device);
- if (slow_clock)
+ if (at91_suspend_sram_fn)
suspend_set_ops(&at91_pm_ops);
else
pr_info("AT91: PM not supported, due to no SRAM allocated\n");
diff --git a/arch/arm/mach-at91/pm_suspend.S b/arch/arm/mach-at91/pm_suspend.S
index f88d04c..bebe3de 100644
--- a/arch/arm/mach-at91/pm_suspend.S
+++ b/arch/arm/mach-at91/pm_suspend.S
@@ -53,23 +53,19 @@ tmp2 .req r5
.text
-/* void at91_slow_clock(void __iomem *pmc, void __iomem *sdramc,
+/*
+ * void at91_pm_suspend_in_sram(void __iomem *pmc, void __iomem *sdramc,
* void __iomem *ramc1, int memctrl)
+ * @input param:
+ * @r0: base address of AT91_PMC
+ * @r1: base address of SDRAM Controller (SDRAM, DDRSDR, or AT91_SYS)
+ * @r2: base address of second SDRAM Controller or 0 if not present
+ * @r3: pm information
*/
-ENTRY(at91_slow_clock)
+ENTRY(at91_pm_suspend_in_sram)
/* Save registers on stack */
stmfd sp!, {r4 - r12, lr}
- /*
- * Register usage:
- * R0 = Base address of AT91_PMC
- * R1 = Base address of RAM Controller (SDRAM, DDRSDR, or AT91_SYS)
- * R2 = Base address of second RAM Controller or 0 if not present
- * R3 = Memory controller
- * R4 = temporary register
- * R5 = temporary register
- */
-
/* Drain write buffer */
mov tmp1, #0
mcr p15, 0, tmp1, c7, c10, 4
@@ -166,7 +162,7 @@ skip_enable_main_clock:
/* Restore registers, and return */
ldmfd sp!, {r4 - r12, pc}
-ENDPROC(at91_slow_clock)
+ENDPROC(at91_pm_suspend_in_sram)
/*
* void at91_sramc_self_refresh(unsigned int is_active)
@@ -317,5 +313,5 @@ ENDPROC(at91_sramc_self_refresh)
.saved_sam9_mdr1:
.word 0
-ENTRY(at91_slow_clock_sz)
- .word .-at91_slow_clock
+ENTRY(at91_pm_suspend_in_sram_sz)
+ .word .-at91_pm_suspend_in_sram
--
1.7.9.5
--
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