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ARM: rockchip: decrease the wait time for resume

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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>
This commit is contained in:
Chris Zhong 2015-02-09 21:12:22 +08:00 committed by Heiko Stuebner
parent bd76d73836
commit aefc7c7512
2 changed files with 7 additions and 0 deletions
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3
arch/arm/mach-rockchip/pm.c
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@ -209,6 +209,9 @@ 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;
}

4
arch/arm/mach-rockchip/pm.h
View File

@ -63,6 +63,10 @@ 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,