From 192be4327fac83f10b754ef69f25fdcdf574cec5 Mon Sep 17 00:00:00 2001 From: Duncan Laurie Date: Wed, 19 Jul 2017 23:26:00 -0700 Subject: [PATCH] eve: Enable active discharge on V3.3A and V1.8A Enable 100ohm discharge on the V3.3A and V1.8A rails. BUG=b:35581264 TEST=verify power down sequence on scope Change-Id: Ibdfff5a60bddd9da0d950dae619346d7a3dccd8b Signed-off-by: Duncan Laurie Reviewed-on: https://chromium-review.googlesource.com/578756 Reviewed-on: https://chromium-review.googlesource.com/579903 Reviewed-by: Furquan Shaikh --- board/eve/board.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/board/eve/board.c b/board/eve/board.c index 86b034e0b8..efe8918bfd 100644 --- a/board/eve/board.c +++ b/board/eve/board.c @@ -350,6 +350,9 @@ static void board_pmic_init(void) if (system_jumped_to_this_image()) return; + /* DISCHGCNT2 - enable 100 ohm discharge on V3.3A and V1.8A */ + i2c_write8(I2C_PORT_PMIC, I2C_ADDR_BD99992, 0x3d, 0x05); + /* DISCHGCNT3 - enable 100 ohm discharge on V1.00A */ i2c_write8(I2C_PORT_PMIC, I2C_ADDR_BD99992, 0x3e, 0x04);