erebion/coreboot
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

google/rush_ryu: Remove long delay when turning on AVDD_DSI_CSI

Browse source 
Based on TPS65913, the max LDO turn on time is 500us. Since it is requested
the default delay of 500us when calling function pmic_write_reg(), it is
safe to remove this 100ms delay.

BRANCH=none
BUG=chrome-os-partner:31936
TEST=build and test on ryu

Signed-off-by: Jimmy Zhang <jimmzhang@nvidia.com>

Change-Id: I2cfda38728db223c26f9122b70d37e828921459a
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 271b7e95f6
Original-Change-Id: I53aecc273484edfa502231b44f6bcd7f5d8f9331
Original-Reviewed-on: https://chromium-review.googlesource.com/231170
Original-Tested-by: Jimmy Zhang <jimmzhang@nvidia.com>
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Original-Commit-Queue: Jimmy Zhang <jimmzhang@nvidia.com>
Reviewed-on: http://review.coreboot.org/9529
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
This commit is contained in:
Jimmy Zhang 2014-11-20 15:43:04 -08:00 • committed by Patrick Georgi
commit 1d1a15d87f
1 changed files with 0 additions and 2 deletions
Download patch file Download diff file Expand all files Collapse all files

2
src/mainboard/google/rush_ryu/mainboard.c
View file

@ -123,8 +123,6 @@ static int enable_lcd_vdd(void)
VSEL_1200, 1);
pmic_write_reg(I2CPWR_BUS, TI65913_LDO5_CTRL,
TI65913_MODE_ACTIVE_ON, 1);
/* wait for 100ms */
mdelay(100);
/*
* Enable VDD_LCD