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volteer: enable eDP backlight 

This change ensure the eDP backlight control is driven high so that the
PCH can turn the backlight on and off. Still need to add controls to the
EC to turn the backlight off.

BUG=b:144520387
BRANCH=none
TEST=make buildall
TEST=verify backlight on Volteer

Change-Id: Idb075781dc358c5c7a6fe68f828a28407b92c94d
Signed-off-by: Keith Short <keithshort@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/1918005
Reviewed-by: Abe Levkoy <alevkoy@chromium.org>
This commit is contained in:
Keith Short 2019-11-14 13:55:52 -08:00 committed by Commit Bot
parent 188b6ff7d7
commit 2e228e9890
1 changed files with 7 additions and 0 deletions
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7
board/volteer/gpio.inc
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@ -91,6 +91,13 @@ GPIO(EN_PP3300_AG, PIN(8, 5), GPIO_OUT_LOW)
* default. */
GPIO(LED_SIDESEL_4_L, PIN(6, 0), GPIO_OUT_LOW)
/*
* eDP backlight - both PCH and EC have enable pins that must be high
* for the backlight to turn on. Default state is high, and can be turned
* off during sleep states.
*/
GPIO(EC_EDP_BL_EN, PIN(D, 3), GPIO_OUT_HIGH)
/* I2C pins - Alternate function below configures I2C module on these pins */
GPIO(EC_I2C0_SENSOR_SCL, PIN(B, 5), GPIO_INPUT | GPIO_SEL_1P8V)
GPIO(EC_I2C0_SENSOR_SDA, PIN(B, 4), GPIO_INPUT | GPIO_SEL_1P8V)