[coreboot-gerrit] Change in coreboot[master]: mb/google/brya/var/banshee: Add mic mute switch setting

[Felix Held (Code Review)]

Felix Held has submitted this change. ( https://review.coreboot.org/c/coreboot/+/62804 )

Change subject: mb/google/brya/var/banshee: Add mic mute switch setting
......................................................................

mb/google/brya/var/banshee: Add mic mute switch setting

Using the GPP_F22 as mic mute switch based on the latest schematic.

BUG=b:223737606, b:216110896
BRANCH=firmware-brya-14505.B
TEST=emerge-brya coreboot chromeos-bootimage
The mic_mute event is changed when the mic_mute GPIO pin is switched.
Event: time 1647939954.639995, type 5 (EV_SW), code 14 (SW_MUTE_DEVICE), value 0
Event: time 1647939954.639995, -------------- SYN_REPORT ------------
Event: time 1647939954.648152, type 5 (EV_SW), code 14 (SW_MUTE_DEVICE), value 1
Event: time 1647939954.648152, -------------- SYN_REPORT ------------

Signed-off-by: Frank Wu 
Change-Id: I6f7176afbd64f7c080f02369f195043a2df88e5d
Reviewed-on: https://review.coreboot.org/c/coreboot/+/62804
Tested-by: build bot (Jenkins) 
Reviewed-by: Tim Wawrzynczak 
Reviewed-by: Eric Lai 
---
M src/mainboard/google/brya/Kconfig.name
M src/mainboard/google/brya/variants/banshee/gpio.c
M src/mainboard/google/brya/variants/banshee/overridetree.cb
3 files changed, 14 insertions(+), 1 deletion(-)

Approvals:
  build bot (Jenkins): Verified
  Tim Wawrzynczak: Looks good to me, approved
  Eric Lai: Looks good to me, approved

diff --git a/src/mainboard/google/brya/Kconfig.name b/src/mainboard/google/brya/Kconfig.name
index f1cab9d..b3917d2 100644
--- a/src/mainboard/google/brya/Kconfig.name
+++ b/src/mainboard/google/brya/Kconfig.name
@@ -174,6 +174,7 @@
    select BOARD_GOOGLE_BASEBOARD_BRYA
    select MEMORY_SODIMM
    select CHROMEOS_WIFI_SAR if CHROMEOS
+	select DRIVERS_GENERIC_GPIO_KEYS

config BOARD_GOOGLE_CROTA
    bool "->  Crota"
diff --git a/src/mainboard/google/brya/variants/banshee/gpio.c b/src/mainboard/google/brya/variants/banshee/gpio.c
index a6f6854..b8f4dab 100644
--- a/src/mainboard/google/brya/variants/banshee/gpio.c
+++ b/src/mainboard/google/brya/variants/banshee/gpio.c
@@ -186,7 +186,8 @@
    PAD_NC(GPP_F20, NONE),
    /* F21 : EXT_PWR_GATE2# ==> NC */
    PAD_NC(GPP_F21, NONE),
-	/* F22 : NC */
+	/* F22 : NC ==> MIC_SW */
+	PAD_CFG_GPI_GPIO_DRIVER(GPP_F22, NONE, DEEP),
    /* F23 : NC */

/* H0  : GPPH0_BOOT_STRAP1 */
diff --git a/src/mainboard/google/brya/variants/banshee/overridetree.cb b/src/mainboard/google/brya/variants/banshee/overridetree.cb
index ea81874..866bbd6 100644
--- a/src/mainboard/google/brya/variants/banshee/overridetree.cb
+++ b/src/mainboard/google/brya/variants/banshee/overridetree.cb
@@ -196,6 +196,17 @@
    			register "property_list[0].integer" = "1"
    			device i2c 1a on end
    		end
+			chip drivers/generic/gpio_keys
+				register "name" = ""MUTE""
+				register "label" = ""mic_mute_switch""
+				register "gpio" = "ACPI_GPIO_INPUT_ACTIVE_HIGH(GPP_F22)"
+				register "key.wakeup_route" = "WAKEUP_ROUTE_DISABLED"
+				register "key.dev_name" = ""MMSW""
+				register "key.linux_code" = "SW_MUTE_DEVICE"
+				register "key.linux_input_type" = "EV_SW"
+				register "key.label" = ""mic_mute_switch_key""
+				device generic 0 on end
+			end
    	end #I2C0
    	device ref i2c1 on
    		chip drivers/i2c/tpm