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skylake: Disable power rails and components when appropriate

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- Disable USB, wireless and audio power rail when powering down from S3
- Disable sensor power rail and display backlight when powering down
  from S0

BUG=chrome-os-partner:42104
TEST=Manual on Glados. Boot AP, verify that display backlight and USB
are functional.
BRANCH=None

Change-Id: I2879f57db555753b280e785df3d2cc967c152f21
Signed-off-by: Shawn Nematbakhsh <shawnn@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/285545
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-by: Alec Berg <alecaberg@chromium.org>
This commit is contained in:
Shawn Nematbakhsh
2015-07-14 12:39:51 -07:00
committed by ChromeOS Commit Bot
parent ac1cba419a
commit 88ef0bc44e
3 changed files with 42 additions and 7 deletions
Download Patch File Download Diff File Expand all files Collapse all files

27
board/glados/board.c
View File

@@ -302,3 +302,30 @@ void board_set_charge_limit(int charge_ma)
CONFIG_CHARGER_INPUT_CURRENT));
}
/* Called on AP S5 -> S3 transition */
void board_chipset_startup(void)
{
gpio_set_level(GPIO_PP1800_DX_AUDIO_EN, 1);
}
DECLARE_HOOK(HOOK_CHIPSET_STARTUP, board_chipset_startup, HOOK_PRIO_DEFAULT);
/* Called on AP S3 -> S5 transition */
void board_chipset_shutdown(void)
{
gpio_set_level(GPIO_PP1800_DX_AUDIO_EN, 0);
}
DECLARE_HOOK(HOOK_CHIPSET_SHUTDOWN, board_chipset_shutdown, HOOK_PRIO_DEFAULT);
/* Called on AP S3 -> S0 transition */
void board_chipset_resume(void)
{
gpio_set_level(GPIO_PP1800_DX_SENSOR_EN, 1);
}
DECLARE_HOOK(HOOK_CHIPSET_RESUME, board_chipset_resume, HOOK_PRIO_DEFAULT);
/* Called on AP S0 -> S3 transition */
void board_chipset_suspend(void)
{
gpio_set_level(GPIO_PP1800_DX_SENSOR_EN, 0);
}
DECLARE_HOOK(HOOK_CHIPSET_SUSPEND, board_chipset_suspend, HOOK_PRIO_DEFAULT);

12
board/glados/gpio.inc
View File

@@ -43,8 +43,8 @@ GPIO(I2C3_SDA, PIN(25), GPIO_INPUT)
GPIO(PCH_SCI_L, PIN(26), GPIO_ODR_HIGH)
/* KB BL PWM, only connected to TP */
GPIO(PWM_KBLIGHT, PIN(34), GPIO_OUT_LOW)
GPIO(USB1_ENABLE, PIN(36), GPIO_OUT_HIGH)
GPIO(USB2_ENABLE, PIN(67), GPIO_OUT_HIGH)
GPIO(USB1_ENABLE, PIN(36), GPIO_OUT_LOW)
GPIO(USB2_ENABLE, PIN(67), GPIO_OUT_LOW)
GPIO(ENTERING_RW, PIN(41), GPIO_OUT_LOW)
GPIO(PCH_SMI_L, PIN(44), GPIO_ODR_HIGH)
GPIO(PCH_PWRBTN_L, PIN(45), GPIO_OUTPUT)
@@ -79,13 +79,13 @@ GPIO(USB_C0_5V_EN, PIN(154), GPIO_OUT_LOW)
GPIO(USB_C1_5V_EN, PIN(204), GPIO_OUT_LOW)
GPIO(USB_C0_CHARGE_EN_L, PIN(64), GPIO_OUT_LOW)
GPIO(USB_C1_CHARGE_EN_L, PIN(157), GPIO_OUT_LOW)
GPIO(PP1800_DX_SENSOR_EN, PIN(11), GPIO_OUT_HIGH)
GPIO(PP1800_DX_AUDIO_EN, PIN(160), GPIO_OUT_HIGH)
GPIO(PP1800_DX_SENSOR_EN, PIN(11), GPIO_OUT_LOW)
GPIO(PP1800_DX_AUDIO_EN, PIN(160), GPIO_OUT_LOW)
GPIO(PCH_RTCRST, PIN(163), GPIO_OUT_LOW)
/* From lid sensor */
GPIO(TABLET_MODE, PIN(201), GPIO_INPUT | GPIO_PULL_UP)
GPIO(ENABLE_BACKLIGHT, PIN(202), GPIO_OUT_HIGH)
GPIO(PP3300_WLAN_EN, PIN(203), GPIO_OUT_HIGH)
GPIO(ENABLE_BACKLIGHT, PIN(202), GPIO_OUT_LOW)
GPIO(PP3300_WLAN_EN, PIN(203), GPIO_OUT_LOW)
GPIO(EC_WAKE_CLK, PIN(210), GPIO_INPUT)
GPIO(BOARD_ID0, PIN(6), GPIO_INPUT)
GPIO(BOARD_ID1, PIN(7), GPIO_INPUT)

10
power/skylake.c
View File

@@ -191,8 +191,10 @@ enum power_state power_handle_state(enum power_state state)
return POWER_S5G3;
}
/* Enable TP so that it can wake the system */
/* Enable TP + USB so that they can wake the system */
gpio_set_level(GPIO_ENABLE_TOUCHPAD, 1);
gpio_set_level(GPIO_USB1_ENABLE, 1);
gpio_set_level(GPIO_USB2_ENABLE, 1);
/* Call hooks now that rails are up */
hook_notify(HOOK_CHIPSET_STARTUP);
@@ -205,6 +207,8 @@ enum power_state power_handle_state(enum power_state state)
return POWER_S3S5;
}
gpio_set_level(GPIO_ENABLE_BACKLIGHT, 1);
/* Enable wireless */
wireless_set_state(WIRELESS_ON);
@@ -229,6 +233,8 @@ enum power_state power_handle_state(enum power_state state)
/* Call hooks before we remove power rails */
hook_notify(HOOK_CHIPSET_SUSPEND);
gpio_set_level(GPIO_ENABLE_BACKLIGHT, 0);
/* Suspend wireless */
wireless_set_state(WIRELESS_SUSPEND);
@@ -248,6 +254,8 @@ enum power_state power_handle_state(enum power_state state)
wireless_set_state(WIRELESS_OFF);
gpio_set_level(GPIO_ENABLE_TOUCHPAD, 0);
gpio_set_level(GPIO_USB1_ENABLE, 0);
gpio_set_level(GPIO_USB2_ENABLE, 0);
return POWER_S5G3;