Change in coreboot[master]: [WIP]: mainboard/google/soraka: wacom touchscreen support

[Wisley Chen (Code Review)]

Wisley Chen has uploaded this change for review. ( https://review.coreboot.org/20476

Change subject: [WIP]: mainboard/google/soraka: wacom touchscreen support
......................................................................

[WIP]: mainboard/google/soraka: wacom touchscreen support

Initialize wacom touchscreen support. Soraka supports wacom touchscreen.

BUG=b:37007801
BRANCH=None
TEST=Verified that evtest can get event when finger/AES pen touch the screen.

Change-Id: I0fbae4782c6442149cda57d23c61ed87546621bb
Signed-off-by: Wisley Chen 
---
M src/mainboard/google/poppy/variants/baseboard/gpio.c
M src/mainboard/google/poppy/variants/soraka/devicetree.cb
2 files changed, 14 insertions(+), 11 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/76/20476/1

diff --git a/src/mainboard/google/poppy/variants/baseboard/gpio.c b/src/mainboard/google/poppy/variants/baseboard/gpio.c
index 803a631..91f0b5f 100644
--- a/src/mainboard/google/poppy/variants/baseboard/gpio.c
+++ b/src/mainboard/google/poppy/variants/baseboard/gpio.c
@@ -234,7 +234,7 @@
    /* E2  : SATAXPCIE2 ==> NC */
    PAD_CFG_NC(GPP_E2),
    /* E3  : CPU_GP0 ==> TOUCHSCREEN_RST_L */
-	PAD_CFG_GPO(GPP_E3, 0, DEEP),
+	PAD_CFG_GPO(GPP_E3, 1, DEEP),
    /* E4  : SATA_DEVSLP0 ==> NC */
    PAD_CFG_NC(GPP_E4),
    /* E5  : SATA_DEVSLP1 ==> NC */
diff --git a/src/mainboard/google/poppy/variants/soraka/devicetree.cb b/src/mainboard/google/poppy/variants/soraka/devicetree.cb
index 58287fa..e742ea9 100644
--- a/src/mainboard/google/poppy/variants/soraka/devicetree.cb
+++ b/src/mainboard/google/poppy/variants/soraka/devicetree.cb
@@ -214,16 +214,19 @@
    	device pci 14.1 off end # USB xDCI (OTG)
    	device pci 14.2 on  end # Thermal Subsystem
    	device pci 15.0 on
-			chip drivers/i2c/generic
-				register "hid" = ""ATML0001""
-				register "desc" = ""Atmel Touchscreen""
-				register "irq" = "ACPI_IRQ_LEVEL_LOW(GPP_E7_IRQ)"
-				register "probed" = "1"
-				register "has_power_resource" = "1"
-				register "disable_gpio_export_in_crs" = "1"
-				register "enable_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPP_C22)"
-				register "enable_delay_ms" = "250"
-				device i2c 4b on end
+			chip drivers/i2c/hid
+				register "generic.hid" = ""WCOMNTN2""
+				register "generic.desc" = ""WCOM Touchscreen""
+				register "generic.irq" = "ACPI_IRQ_LEVEL_LOW(GPP_E7_IRQ)"
+				register "generic.probed" = "1"
+				register "generic.reset_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_E3)"
+				register "generic.reset_delay_ms" = "1"
+				register "generic.enable_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPP_C22)"
+				register "generic.enable_delay_ms" = "250"
+				register "generic.has_power_resource" = "1"
+				register "generic.disable_gpio_export_in_crs" = "1"
+				register "hid_desc_reg_offset" = "0x1"
+				device i2c 0xA on end
    		end
    	end # I2C #0
    	device pci 15.1 on