diff options
| -rw-r--r-- | arch/arm/mach-rockchip/pm.c | 35 | ||||
| -rw-r--r-- | arch/arm/mach-rockchip/pm.h | 5 |
2 files changed, 28 insertions, 12 deletions
diff --git a/arch/arm/mach-rockchip/pm.c b/arch/arm/mach-rockchip/pm.c index 892bace139be..156cd23dfba5 100644 --- a/arch/arm/mach-rockchip/pm.c +++ b/arch/arm/mach-rockchip/pm.c @@ -96,7 +96,7 @@ static bool rk3288_slp_disable_osc(void) static void rk3288_slp_mode_set(int level) { u32 mode_set, mode_set1; - bool osc_switch_to_32k = rk3288_slp_disable_osc(); + bool osc_disable = rk3288_slp_disable_osc(); regmap_read(sgrf_regmap, RK3288_SGRF_CPU_CON0, &rk3288_sgrf_cpu_con0); regmap_read(sgrf_regmap, RK3288_SGRF_SOC_CON0, &rk3288_sgrf_soc_con0); @@ -123,9 +123,6 @@ static void rk3288_slp_mode_set(int level) regmap_write(sgrf_regmap, RK3288_SGRF_FAST_BOOT_ADDR, rk3288_bootram_phy); - regmap_write(pmu_regmap, RK3288_PMU_WAKEUP_CFG1, - PMU_ARMINT_WAKEUP_EN); - mode_set = BIT(PMU_GLOBAL_INT_DISABLE) | BIT(PMU_L2FLUSH_EN) | BIT(PMU_SREF0_ENTER_EN) | BIT(PMU_SREF1_ENTER_EN) | BIT(PMU_DDR0_GATING_EN) | BIT(PMU_DDR1_GATING_EN) | @@ -140,11 +137,27 @@ static void rk3288_slp_mode_set(int level) BIT(PMU_DDR1IO_RET_EN) | BIT(PMU_DDR0IO_RET_EN) | BIT(PMU_ALIVE_USE_LF) | BIT(PMU_PLL_PD_EN); - if (osc_switch_to_32k) + if (osc_disable) mode_set |= BIT(PMU_OSC_24M_DIS); mode_set1 |= BIT(PMU_CLR_ALIVE) | BIT(PMU_CLR_BUS) | BIT(PMU_CLR_PERI) | BIT(PMU_CLR_DMA); + + regmap_write(pmu_regmap, RK3288_PMU_WAKEUP_CFG1, + PMU_ARMINT_WAKEUP_EN); + + /* + * In deep suspend we use PMU_PMU_USE_LF to let the rk3288 + * switch its main clock supply to the alternative 32kHz + * source. Therefore set 30ms on a 32kHz clock for pmic + * stabilization. Similar 30ms on 24MHz for the other + * mode below. + */ + regmap_write(pmu_regmap, RK3288_PMU_STABL_CNT, 32 * 30); + + /* only wait for stabilization, if we turned the osc off */ + regmap_write(pmu_regmap, RK3288_PMU_OSC_CNT, + osc_disable ? 32 * 30 : 0); } else { /* * arm off, logic normal @@ -152,6 +165,15 @@ static void rk3288_slp_mode_set(int level) * wakeup will be error */ mode_set |= BIT(PMU_CLK_CORE_SRC_GATE_EN); + + regmap_write(pmu_regmap, RK3288_PMU_WAKEUP_CFG1, + PMU_ARMINT_WAKEUP_EN | PMU_GPIOINT_WAKEUP_EN); + + /* 30ms on a 24MHz clock for pmic stabilization */ + regmap_write(pmu_regmap, RK3288_PMU_STABL_CNT, 24000 * 30); + + /* oscillator is still running, so no need to wait */ + regmap_write(pmu_regmap, RK3288_PMU_OSC_CNT, 0); } regmap_write(pmu_regmap, RK3288_PMU_PWRMODE_CON, mode_set); @@ -262,9 +284,6 @@ static int rk3288_suspend_init(struct device_node *np) memcpy(rk3288_bootram_base, rockchip_slp_cpu_resume, rk3288_bootram_sz); - regmap_write(pmu_regmap, RK3288_PMU_OSC_CNT, OSC_STABL_CNT_THRESH); - regmap_write(pmu_regmap, RK3288_PMU_STABL_CNT, PMU_STABL_CNT_THRESH); - return 0; } diff --git a/arch/arm/mach-rockchip/pm.h b/arch/arm/mach-rockchip/pm.h index b6494c2bd761..b5af26f8336e 100644 --- a/arch/arm/mach-rockchip/pm.h +++ b/arch/arm/mach-rockchip/pm.h @@ -61,10 +61,7 @@ static inline void rockchip_suspend_init(void) /* PMU_WAKEUP_CFG1 bits */ #define PMU_ARMINT_WAKEUP_EN BIT(0) - -/* wait 30ms for OSC stable and 30ms for pmic stable */ -#define OSC_STABL_CNT_THRESH (32 * 30) -#define PMU_STABL_CNT_THRESH (32 * 30) +#define PMU_GPIOINT_WAKEUP_EN BIT(3) enum rk3288_pwr_mode_con { PMU_PWR_MODE_EN = 0, |