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| author | Sue Chen <sue.chen@quanta.corp-partner.google.com> | 2019-03-18 14:47:35 +0800 |
|---|---|---|
| committer | chrome-bot <chrome-bot@chromium.org> | 2019-03-30 02:53:00 -0700 |
| commit | 96d07e2cee5ed4b6ace9d4b74287235d304e33cc (patch) | |
| tree | 02eb091bf1d14b73b1395ef4a8773a9aa714990b /board/fizz/board.c | |
| parent | 6e2c6d0c9a9d2772476c6e6b1b092704d7d9c8ed (diff) | |
| download | chrome-ec-96d07e2cee5ed4b6ace9d4b74287235d304e33cc.tar.gz | |
Fizz: Teemo PMIC TPS650830 VR1 setting for hang up issue
Set PMIC register V100ACNT (0x37) to 0x1B
[1:0] : 11b Forced PWM Operation.
[5:4] : 01b Output Voltage Selet Vnom (1V)
To improve +V1P00A ripple around 18mV.
BUG=b:128960577
BRANCH=firmware-fizz-10139.B
TEST=make buildall -j
Signed-off-by: Sue Chen <sue.chen@quanta.corp-partner.google.com>
Change-Id: I1e620a6c2eebcf2dec8c66989f1469072621ba92
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/1529983
Reviewed-by: Daisuke Nojiri <dnojiri@chromium.org>
Commit-Queue: Daisuke Nojiri <dnojiri@chromium.org>
Tested-by: Daisuke Nojiri <dnojiri@chromium.org>
(cherry picked from commit 4d510cbb5c27314b11bb92c4e9af361501605ad7)
Reviewed-on: https://chromium-review.googlesource.com/1529982
Commit-Ready: Daisuke Nojiri <dnojiri@chromium.org>
Diffstat (limited to 'board/fizz/board.c')
| -rw-r--r-- | board/fizz/board.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/board/fizz/board.c b/board/fizz/board.c index be1c65a8f0..4de18e7ec8 100644 --- a/board/fizz/board.c +++ b/board/fizz/board.c @@ -433,6 +433,17 @@ static void board_pmic_init(void) if (err) goto pmic_error; + if (oem == OEM_TEEMO) { + /* + * V100ACNT Register Field Description. Default: 0x2A + * [1:0] : 11b Forced PWM Operation. + * [5:4] : 01b Output Voltage Select Vnom (1V) + */ + err = I2C_PMIC_WRITE(TPS650X30_REG_V100ACNT, 0x1B); + if (err) + goto pmic_error; + } + CPRINTS("PMIC init done"); pmic_initialized = 1; return; |