ARM: at91/pm: rename function name: at91_slow_clock() --> at91_pm_suspend_sram_fn()

As the file name is renamed, rename the function 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@atmel.com>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Tested-by: Sylvain Rochet <sylvain.rochet@finsecur.com>
[nicolas.ferre@atmel.com: little update of the commit message]
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>

arch/arm/mach-at91/pm.c

@@ -120,13 +120,12 @@ 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)
 {
@@ -135,8 +134,8 @@ 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)
@@ -278,21 +277,23 @@ static void __init at91_pm_sram_init(void)
 		return;
 	}
 
-	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__);
 		return;
 	}
 
 	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");
 		return;
 	}
 
-	/* 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);
 }
 
 static void __init at91_pm_init(void)
@@ -302,7 +303,7 @@ 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");

arch/arm/mach-at91/pm_suspend.S

@@ -55,23 +55,19 @@ tmp2	.req	r5
 
 	.arm
 
-/* 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
@@ -170,7 +166,7 @@ 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)
@@ -320,5 +316,5 @@ 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