diff options
| author | Kyoung Kim <kyoung.il.kim@intel.com> | 2016-01-11 13:58:28 -0800 |
|---|---|---|
| committer | chrome-bot <chrome-bot@chromium.org> | 2016-01-14 19:52:47 -0800 |
| commit | 6955bfdd9b551e9fdad3b8d1673f0c3dad6f6c14 (patch) | |
| tree | d0e96fae96b9f1101ff538c1c37b0d5e819c7f0b | |
| parent | 6e2d2982499ff65d447f629e68ab19a2f8bdbf9b (diff) | |
| download | chrome-ec-6955bfdd9b551e9fdad3b8d1673f0c3dad6f6c14.tar.gz | |
Kunimitsu: Increase 5V rail in PMIC
Fix for 5V voltage drop on USB daughter board
BUG=chrome-os-partner:49222
BRANCH=master
TEST=monitoring 5V rails in daugher board when 1A load to USB port.
Change-Id: I7a5138e11101994e3e335e5cc16068985fd3366a
Signed-off-by: Kyoung Kim <kyoung.il.kim@intel.com>
Reviewed-on: https://chromium-review.googlesource.com/321430
Commit-Ready: Kyoung Il Kim <kyoung.il.kim@intel.com>
Tested-by: Kyoung Il Kim <kyoung.il.kim@intel.com>
Reviewed-by: Shawn N <shawnn@chromium.org>
| -rw-r--r-- | board/kunimitsu/board.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/board/kunimitsu/board.c b/board/kunimitsu/board.c index 6b1f199b8e..15f825cd44 100644 --- a/board/kunimitsu/board.c +++ b/board/kunimitsu/board.c @@ -476,6 +476,16 @@ static void board_pmic_init(void) if (ret) goto pmic_error; + /* + * Increase Voltage + * [7:0] : 0x2a default + * [5:4] : 10b default + * [5:4] : 01b 5.1V (0x1a) + */ + ret = I2C_PMIC_WRITE(TPS650830_REG_V5ADS3CNT, 0x1a); + if (ret) + goto pmic_error; + CPRINTS("PMIC initialization done"); return; |