diff options
| author | Furquan Shaikh <furquan@chromium.org> | 2016-12-13 09:15:07 -0800 |
|---|---|---|
| committer | Martin Roth <martinroth@google.com> | 2016-12-17 04:21:38 +0100 |
| commit | 2fe0d75d42904b224be344b1865a2582b20ecea2 (patch) | |
| tree | 3accad02c625353c06581e9e20b8bf5401184a8b | |
| parent | 60f3217ed9a91bcf96a49af83fac3dcbaf54aa88 (diff) | |
google/reef: Use exported GPIOs and ACPI regulator for touchscreen
ELAN touchscreen device expects firmware to export GPIOs and ACPI
regulators for managing power to the device. Thus, provide the
required ACPI elements for OS driver to properly manage this device.
BUG=chrome-os-partner:60194
BRANCH=None
TEST=Verified that touchscreen works properly on boot-up and after
suspend/resume.
Change-Id: I298ca5de9c0ae302309d87e3dffb65f9be1e882e
Signed-off-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-on: https://review.coreboot.org/17799
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
| -rw-r--r-- | src/mainboard/google/reef/Kconfig | 3 | ||||
| -rw-r--r-- | src/mainboard/google/reef/variants/baseboard/devicetree.cb | 9 |
2 files changed, 11 insertions, 1 deletions
diff --git a/src/mainboard/google/reef/Kconfig b/src/mainboard/google/reef/Kconfig index c5625b68a0..0766577a1f 100644 --- a/src/mainboard/google/reef/Kconfig +++ b/src/mainboard/google/reef/Kconfig @@ -50,6 +50,9 @@ config DRIVERS_I2C_WACOM config DRIVERS_PS2_KEYBOARD default y +config DRIVERS_GENERIC_GPIO_REGULATOR + default y + config MAINBOARD_DIR string default google/reef diff --git a/src/mainboard/google/reef/variants/baseboard/devicetree.cb b/src/mainboard/google/reef/variants/baseboard/devicetree.cb index 1d9dcbb624..7db4f156b8 100644 --- a/src/mainboard/google/reef/variants/baseboard/devicetree.cb +++ b/src/mainboard/google/reef/variants/baseboard/devicetree.cb @@ -179,7 +179,14 @@ chip soc/intel/apollolake register "probed" = "1" register "pwr_mgmt_type" = "GPIO_EXPORT" register "reset_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPIO_36)" - register "enable_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPIO_152)" + + chip drivers/generic/gpio_regulator + register "name" = ""vcc33"" + register "gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPIO_152)" + register "enabled_on_boot" = "1" + device generic 0 on end + end + device i2c 10 on end end end # - I2C 3 |