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-rw-r--r--arch/arm/mach-rockchip/pm.c22
-rw-r--r--arch/arm/mach-rockchip/pm.h4
2 files changed, 19 insertions, 7 deletions
diff --git a/arch/arm/mach-rockchip/pm.c b/arch/arm/mach-rockchip/pm.c
index 2ca1170da5d6..c11a30b1d980 100644
--- a/arch/arm/mach-rockchip/pm.c
+++ b/arch/arm/mach-rockchip/pm.c
@@ -145,6 +145,19 @@ static void rk3288_slp_mode_set(int level)
mode_set1 |= BIT(PMU_CLR_ALIVE) | BIT(PMU_CLR_BUS) |
BIT(PMU_CLR_PERI) | BIT(PMU_CLR_DMA);
+
+ /*
+ * 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 +165,12 @@ static void rk3288_slp_mode_set(int level)
* wakeup will be error
*/
mode_set |= BIT(PMU_CLK_CORE_SRC_GATE_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 +281,6 @@ 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..8a55ee2298f8 100644
--- a/arch/arm/mach-rockchip/pm.h
+++ b/arch/arm/mach-rockchip/pm.h
@@ -62,10 +62,6 @@ 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)
-
enum rk3288_pwr_mode_con {
PMU_PWR_MODE_EN = 0,
PMU_CLK_CORE_SRC_GATE_EN,