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ARM: EXYNOS4: Add more registers to be saved and restored for PM
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We need more registers to be saved and restored for PM of EXYNOS4210.
Otherwise, with additional drivers running, suspend-to-RAM fails to
wake up properly. This patch adds registers omitted in the initial PM
patches.

Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
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MyungJoo Ham authored and Kukjin Kim committed Jul 21, 2011
1 parent d40474c commit b93cb91
Showing 1 changed file with 14 additions and 0 deletions.
14 changes: 14 additions & 0 deletions arch/arm/mach-exynos4/pm.c
Original file line number Diff line number Diff line change
Expand Up @@ -27,6 +27,7 @@
#include <plat/cpu.h>
#include <plat/pm.h>
#include <plat/pll.h>
#include <plat/regs-srom.h>

#include <mach/regs-irq.h>
#include <mach/regs-gpio.h>
Expand Down Expand Up @@ -67,7 +68,9 @@ static struct sleep_save exynos4_core_save[] = {
SAVE_ITEM(S5P_CLKSRC_TOP0),
SAVE_ITEM(S5P_CLKSRC_TOP1),
SAVE_ITEM(S5P_CLKSRC_CAM),
SAVE_ITEM(S5P_CLKSRC_TV),
SAVE_ITEM(S5P_CLKSRC_MFC),
SAVE_ITEM(S5P_CLKSRC_G3D),
SAVE_ITEM(S5P_CLKSRC_IMAGE),
SAVE_ITEM(S5P_CLKSRC_LCD0),
SAVE_ITEM(S5P_CLKSRC_LCD1),
Expand All @@ -94,6 +97,7 @@ static struct sleep_save exynos4_core_save[] = {
SAVE_ITEM(S5P_CLKDIV_PERIL4),
SAVE_ITEM(S5P_CLKDIV_PERIL5),
SAVE_ITEM(S5P_CLKDIV_TOP),
SAVE_ITEM(S5P_CLKSRC_MASK_TOP),
SAVE_ITEM(S5P_CLKSRC_MASK_CAM),
SAVE_ITEM(S5P_CLKSRC_MASK_TV),
SAVE_ITEM(S5P_CLKSRC_MASK_LCD0),
Expand All @@ -102,6 +106,7 @@ static struct sleep_save exynos4_core_save[] = {
SAVE_ITEM(S5P_CLKSRC_MASK_FSYS),
SAVE_ITEM(S5P_CLKSRC_MASK_PERIL0),
SAVE_ITEM(S5P_CLKSRC_MASK_PERIL1),
SAVE_ITEM(S5P_CLKDIV2_RATIO),
SAVE_ITEM(S5P_CLKGATE_SCLKCAM),
SAVE_ITEM(S5P_CLKGATE_IP_CAM),
SAVE_ITEM(S5P_CLKGATE_IP_TV),
Expand All @@ -122,8 +127,10 @@ static struct sleep_save exynos4_core_save[] = {
SAVE_ITEM(S5P_CLKGATE_IP_DMC),
SAVE_ITEM(S5P_CLKSRC_CPU),
SAVE_ITEM(S5P_CLKDIV_CPU),
SAVE_ITEM(S5P_CLKDIV_CPU + 0x4),
SAVE_ITEM(S5P_CLKGATE_SCLKCPU),
SAVE_ITEM(S5P_CLKGATE_IP_CPU),

/* GIC side */
SAVE_ITEM(S5P_VA_GIC_CPU + 0x000),
SAVE_ITEM(S5P_VA_GIC_CPU + 0x004),
Expand Down Expand Up @@ -206,6 +213,13 @@ static struct sleep_save exynos4_core_save[] = {
SAVE_ITEM(S5P_VA_COMBINER_BASE + 0x070),
SAVE_ITEM(S5P_VA_COMBINER_BASE + 0x080),
SAVE_ITEM(S5P_VA_COMBINER_BASE + 0x090),

/* SROM side */
SAVE_ITEM(S5P_SROM_BW),
SAVE_ITEM(S5P_SROM_BC0),
SAVE_ITEM(S5P_SROM_BC1),
SAVE_ITEM(S5P_SROM_BC2),
SAVE_ITEM(S5P_SROM_BC3),
};

static struct sleep_save exynos4_l2cc_save[] = {
Expand Down

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