ARM: rockchip: decrease the wait time for resume
The register-default delay time for wait the 24MHz OSC stabilization as well
as PMU stabilization is 750ms, let's decrease them to a still safe 30ms.
Signed-off-by: Chris Zhong <zyw@rock-chips.com>
Reviewed-by: Doug Anderson <dianders@chromium.org>
Tested-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
diff --git a/arch/arm/mach-rockchip/pm.c b/arch/arm/mach-rockchip/pm.c
index 50cb781..a3ab397 100644
--- a/arch/arm/mach-rockchip/pm.c
+++ b/arch/arm/mach-rockchip/pm.c
@@ -209,6 +209,9 @@
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 7c889c0..91a542d 100644
--- a/arch/arm/mach-rockchip/pm.h
+++ b/arch/arm/mach-rockchip/pm.h
@@ -63,6 +63,10 @@
/* 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,