[coreboot-gerrit] Change in coreboot[master]: mb/google/puff/var/dooly: Add gpio_keys for mic mute switch

[Ben Zhang (Code Review)]

Attention is currently required from: Tim Wawrzynczak.
Ben Zhang has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/54333 )

Change subject: mb/google/puff/var/dooly: Add gpio_keys for mic mute switch
......................................................................

mb/google/puff/var/dooly: Add gpio_keys for mic mute switch

UI monitors this input event and sends global mic mute
command to CRAS when the physical switch is toggled.

BUG=b:184593945
BRANCH=puff
TEST=build image and verify with evtest on DUT.
Apply crrev.com/c/2870806 with chrome cmdline flag and
verify global mute is triggered.
Verify sequences of switch toggle and suspend/resume.

Change-Id: Id89947885fdd96c5b5d598bda6db127daf298dc3
Signed-off-by: Ben Zhang 
---
M src/mainboard/google/hatch/variants/dooly/gpio.c
M src/mainboard/google/hatch/variants/dooly/overridetree.cb
2 files changed, 12 insertions(+), 1 deletion(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/33/54333/1

diff --git a/src/mainboard/google/hatch/variants/dooly/gpio.c b/src/mainboard/google/hatch/variants/dooly/gpio.c
index 5fd88c2..eabd2c6 100644
--- a/src/mainboard/google/hatch/variants/dooly/gpio.c
+++ b/src/mainboard/google/hatch/variants/dooly/gpio.c
@@ -42,7 +42,7 @@
    PAD_NC(GPP_C19, NONE),

/* D16 : DMIC_ON_OFF MIC_SWITCH_L */
-	PAD_CFG_GPI(GPP_D16, NONE, DEEP),
+	PAD_CFG_GPI_GPIO_DRIVER(GPP_D16, NONE, PLTRST),

/* E2  : EN_PP_MST_OD */
    PAD_CFG_GPO(GPP_E2, 1, DEEP),
diff --git a/src/mainboard/google/hatch/variants/dooly/overridetree.cb b/src/mainboard/google/hatch/variants/dooly/overridetree.cb
index 3d7a4a5..1276ed8 100644
--- a/src/mainboard/google/hatch/variants/dooly/overridetree.cb
+++ b/src/mainboard/google/hatch/variants/dooly/overridetree.cb
@@ -348,6 +348,17 @@
    			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_LOW(GPP_D16)"
+				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 #I2C #4
    	device pci 1a.0 on  end # eMMC
    	device pci 1d.2 on	# PCI Express Port 11 (X2 NVMe)