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scarlet: shutdown PP900_S0 power rail when S3

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we need to shutdown PP900_S0 power rail when S3 to
save power consumption, let's do it.

BUG=b:62644399
BRANCH=none
TEST=run suspend_stress_test, it pass 1000 cycles
CQ-DEPEND=CL:890228

Change-Id: I366effe9d2a99cb608069dd5d599171d32a9b4ce
Signed-off-by: Lin Huang <hl@rock-chips.com>
Reviewed-on: https://chromium-review.googlesource.com/841902
Commit-Ready: Brian Norris <briannorris@chromium.org>
Tested-by: Derek Basehore <dbasehore@chromium.org>
Tested-by: Brian Norris <briannorris@chromium.org>
Reviewed-by: Derek Basehore <dbasehore@chromium.org>
Reviewed-by: Brian Norris <briannorris@chromium.org>
This commit is contained in:
Lin Huang
2017-12-22 10:57:59 +08:00
committed by chrome-bot
parent b34b34e6e8
commit aec855ac89
1 changed files with 2 additions and 2 deletions
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4
power/rk3399.c
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@@ -94,7 +94,6 @@ BUILD_ASSERT(GPIO_COUNT < 256);
#if CONFIG_CHIPSET_POWER_SEQ_VERSION == 2
static const struct power_seq_op s5s3_power_seq[] = {
{ GPIO_PP900_S0_EN, 1, 2 },
{ GPIO_PP900_S3_EN, 1, 2 },
{ GPIO_PP3300_S3_EN, 1, 2 },
{ GPIO_PP1800_S3_EN, 1, 2 },
@@ -143,6 +142,7 @@ static const struct power_seq_op s3s0_power_seq[] = {
#ifdef S3_USB_WAKE
/* Sigs that may already be on in S3, if we need to wake-on-USB */
static const struct power_seq_op s3s0_usb_wake_power_seq[] = {
{ GPIO_PP900_S0_EN, 1, 2 },
{ GPIO_PP1800_USB_EN, 1, 2 },
{ GPIO_PP3300_S0_EN, 1, 2 },
};
@@ -170,6 +170,7 @@ static const struct power_seq_op s0s3_usb_wake_power_seq[] = {
{ GPIO_PP3300_S0_EN, 0, 20 },
{ GPIO_PP1800_S0_EN, 0, 1 },
{ GPIO_PP1800_USB_EN, 0, 1 },
{ GPIO_PP900_S0_EN, 0, 0 },
};
#endif
@@ -181,7 +182,6 @@ static const struct power_seq_op s3s5_power_seq[] = {
{ GPIO_PP1800_S3_EN, 0, 2 },
{ GPIO_PP3300_S3_EN, 0, 2 },
{ GPIO_PP900_S3_EN, 0, 0 },
{ GPIO_PP900_S0_EN, 0, 0 },
};
#else
static const struct power_seq_op s3s5_power_seq[] = {