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| author | Zhuohao Lee <zhuohao@chromium.org> | 2018-10-16 20:45:37 +0800 |
|---|---|---|
| committer | chrome-bot <chrome-bot@chromium.org> | 2018-10-25 00:32:27 -0700 |
| commit | 9245f05ec8fcee8da5277ac1d7ee1ba2d218fa67 (patch) | |
| tree | 71077314862a62ff327eb75e3aa57b62a54f8daa | |
| parent | 53b4123e52901e986d533a94013df683d2eb62a5 (diff) | |
| download | chrome-ec-9245f05ec8fcee8da5277ac1d7ee1ba2d218fa67.tar.gz | |
rammus: V1.0A power rail should be in 1V during S0ix
Per b:116180071 discussion, the V1.0A power rail should
keep at 1V during S0ix. This patch fixes the pmic setting
to avoid the potential stability issue.
BUG=b:116180071
BRANCH=master
TEST=Measure the V1.0A power rail during S0ix
Change-Id: Ic1d883d7d2427cdb2b8b871df17fbe701904e73e
Signed-off-by: Zhuohao Lee <zhuohao@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/1282550
Reviewed-by: Furquan Shaikh <furquan@chromium.org>
| -rw-r--r-- | board/rammus/board.c | 18 |
1 files changed, 0 insertions, 18 deletions
diff --git a/board/rammus/board.c b/board/rammus/board.c index 2f88f6c293..b5be106f71 100644 --- a/board/rammus/board.c +++ b/board/rammus/board.c @@ -335,15 +335,6 @@ static void board_pmic_disable_slp_s0_vr_decay(void) i2c_write8(I2C_PORT_PMIC, I2C_ADDR_BD99992, 0x34, 0x2a); /* - * V100ACNT: - * Bits 7:6 (00) - Disable low power mode on SLP_S0# assertion - * Bits 5:4 (01) - Nominal voltage 1.0V - * Bits 3:2 (10) - VR set to AUTO on SLP_S0# de-assertion - * Bits 1:0 (10) - VR set to AUTO operating mode - */ - i2c_write8(I2C_PORT_PMIC, I2C_ADDR_BD99992, 0x37, 0x1a); - - /* * V085ACNT: * Bits 7:6 (00) - Disable low power mode on SLP_S0# assertion * Bits 5:4 (11) - Nominal voltage 1.0V @@ -374,15 +365,6 @@ static void board_pmic_enable_slp_s0_vr_decay(void) i2c_write8(I2C_PORT_PMIC, I2C_ADDR_BD99992, 0x34, 0x6a); /* - * V100ACNT: - * Bits 7:6 (01) - Enable low power mode on SLP_S0# assertion - * Bits 5:4 (01) - Nominal voltage 1.0V - * Bits 3:2 (10) - VR set to AUTO on SLP_S0# de-assertion - * Bits 1:0 (10) - VR set to AUTO operating mode - */ - i2c_write8(I2C_PORT_PMIC, I2C_ADDR_BD99992, 0x37, 0x5a); - - /* * V085ACNT: * Bits 7:6 (01) - Enable low power mode on SLP_S0# assertion * Bits 5:4 (11) - Nominal voltage 1.0V |