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ARM: rockchip: enable PMU_GPIOINT_WAKEUP_EN when entering shallow suspend

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PMU_GPIOINT_WAKEUP_EN seems needed when entering the shallow suspend
(with logic staying on) but does not seem to be needed for the deep
suspend for unknown reasons.
Testing revealed that this setting really is necessary to reliably
resume the veyron devices from suspend.

Reported-by: Chris Zhong <zyw@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Chris Zhong <zyw@rock-chips.com>
Tested-by: Chris Zhong <zyw@rock-chips.com>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
This commit is contained in:
Heiko Stuebner
2015-07-22 17:18:03 +02:00
parent d1d3a1a1d7
commit 9bb91ae970
2 changed files with 7 additions and 3 deletions
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9
arch/arm/mach-rockchip/pm.c
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@@ -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) |
@@ -146,6 +143,9 @@ 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);
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
@@ -166,6 +166,9 @@ static void rk3288_slp_mode_set(int level)
*/
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);