From: Ajay Kumar <[email protected]> Added exynos5420_sys_save[] structure for system registers on Exynos5420. We save the values of all the system registers present in the list exynos5420_sys_save[], and we restore these values on resume.
As of now, we have added save/restore entry for EXYNOS5_SYS_DISP1_BLK_CFG. NOTE: Restoring of EXYNOS5_SYS_DISP1_BLK_CFG was not done on Exynos5250 because we use MIE path on Exynos5250 and the default reset value of EXYNOS5_SYS_DISP1_BLK_CFG is set to use MIE. Signed-off-by: Ajay Kumar <[email protected]> Tested-by: Prathyush Kalashwaram <[email protected]> Signed-off-by: Sachin Kamat <[email protected]> --- arch/arm/mach-exynos/include/mach/regs-pmu.h | 1 + arch/arm/mach-exynos/pm.c | 10 ++++++++++ 2 files changed, 11 insertions(+) diff --git a/arch/arm/mach-exynos/include/mach/regs-pmu.h b/arch/arm/mach-exynos/include/mach/regs-pmu.h index 2cdb63e8ce5c..c58b43a19020 100644 --- a/arch/arm/mach-exynos/include/mach/regs-pmu.h +++ b/arch/arm/mach-exynos/include/mach/regs-pmu.h @@ -227,6 +227,7 @@ /* For EXYNOS5 */ +#define EXYNOS5_SYS_DISP1_BLK_CFG S5P_SYSREG(0x0214) #define EXYNOS5_SYS_I2C_CFG S5P_SYSREG(0x0234) #define EXYNOS5_AUTO_WDTRESET_DISABLE S5P_PMUREG(0x0408) diff --git a/arch/arm/mach-exynos/pm.c b/arch/arm/mach-exynos/pm.c index 1578d435df43..a1b7b79b70fa 100644 --- a/arch/arm/mach-exynos/pm.c +++ b/arch/arm/mach-exynos/pm.c @@ -39,6 +39,10 @@ static struct sleep_save exynos5_sys_save[] = { SAVE_ITEM(EXYNOS5_SYS_I2C_CFG), }; +static struct sleep_save exynos5420_sys_save[] = { + SAVE_ITEM(EXYNOS5_SYS_DISP1_BLK_CFG), +}; + static struct sleep_save exynos_core_save[] = { /* SROM side */ SAVE_ITEM(S5P_SROM_BW), @@ -80,6 +84,9 @@ static void exynos_pm_prepare(void) tmp = __raw_readl(EXYNOS5_JPEG_MEM_OPTION); tmp &= ~EXYNOS5_OPTION_USE_RETENTION; __raw_writel(tmp, EXYNOS5_JPEG_MEM_OPTION); + } else if (soc_is_exynos5420()) { + s3c_pm_do_save(exynos5420_sys_save, + ARRAY_SIZE(exynos5420_sys_save)); } /* Set value of power down register for sleep mode */ @@ -256,6 +263,9 @@ static void exynos_pm_resume(void) if (soc_is_exynos5250()) s3c_pm_do_restore(exynos5_sys_save, ARRAY_SIZE(exynos5_sys_save)); + else if (soc_is_exynos5420()) + s3c_pm_do_restore(exynos5420_sys_save, + ARRAY_SIZE(exynos5420_sys_save)); s3c_pm_do_restore_core(exynos_core_save, ARRAY_SIZE(exynos_core_save)); -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
