diff options
| author | Furquan Shaikh <furquan@google.com> | 2018-03-19 16:36:33 -0700 |
|---|---|---|
| committer | chrome-bot <chrome-bot@chromium.org> | 2018-03-20 02:21:59 -0700 |
| commit | bb48421c9803e2f5fcfb603bbf6c38e3c0a15bcc (patch) | |
| tree | 663a64c9712e4021b2083b1cb5a24f9176467647 | |
| parent | 84f8f46851d6a5ef56a10900919b00095413d0a0 (diff) | |
| download | chrome-ec-bb48421c9803e2f5fcfb603bbf6c38e3c0a15bcc.tar.gz | |
poppy: Lower VCCIO from 0.975V to 0.850V
CQ-DEPEND=CL:*591042
BUG=b:75978856
BRANCH=poppy
TEST=No regressions observed.
Change-Id: I3c481ac46bd9005df05f7be13bee8799959fb282
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://chromium-review.googlesource.com/969786
Commit-Ready: Furquan Shaikh <furquan@chromium.org>
Tested-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-by: Nicolas Boichat <drinkcat@chromium.org>
| -rw-r--r-- | board/poppy/board.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/board/poppy/board.c b/board/poppy/board.c index f3243bd83a..bf33c32f1f 100644 --- a/board/poppy/board.c +++ b/board/poppy/board.c @@ -419,11 +419,11 @@ static void board_pmic_disable_slp_s0_vr_decay(void) /* * VCCIOCNT: * Bit 6 (0) - Disable decay of VCCIO on SLP_S0# assertion - * Bits 5:4 (00) - Nominal output voltage: 0.975V + * Bits 5:4 (00) - Nominal output voltage: 0.850V * 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, 0x30, 0xa); + i2c_write8(I2C_PORT_PMIC, I2C_ADDR_BD99992, 0x30, 0x3a); /* * V18ACNT: @@ -458,11 +458,11 @@ static void board_pmic_enable_slp_s0_vr_decay(void) /* * VCCIOCNT: * Bit 6 (1) - Enable decay of VCCIO on SLP_S0# assertion - * Bits 5:4 (00) - Nominal output voltage: 0.975V + * Bits 5:4 (00) - Nominal output voltage: 0.850V * 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, 0x30, 0x4a); + i2c_write8(I2C_PORT_PMIC, I2C_ADDR_BD99992, 0x30, 0x7a); /* * V18ACNT: |