Change in coreboot[master]: mainboard/google/zoombini/variants/meowth: enable touchscreen

[Nick Vaccaro (Code Review)]

Nick Vaccaro has uploaded this change for review. ( https://review.coreboot.org/23551

Change subject: mainboard/google/zoombini/variants/meowth: enable touchscreen
......................................................................

mainboard/google/zoombini/variants/meowth: enable touchscreen

BUG=b:69011806, b:72179988
BRANCH=master
TEST=Verify touchscreen on meowth works with this change.

Change-Id: Iad3f0b77a02552266435e523fdbb74b14ada101a
Signed-off-by: Nick Vaccaro 
---
M src/mainboard/google/zoombini/Kconfig
M src/mainboard/google/zoombini/variants/meowth/devicetree.cb
M src/mainboard/google/zoombini/variants/meowth/gpio.c
3 files changed, 21 insertions(+), 3 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/51/23551/1

diff --git a/src/mainboard/google/zoombini/Kconfig b/src/mainboard/google/zoombini/Kconfig
index 64180f3..31b8cc9 100644
--- a/src/mainboard/google/zoombini/Kconfig
+++ b/src/mainboard/google/zoombini/Kconfig
@@ -3,6 +3,7 @@
    def_bool n
    select BOARD_ROMSIZE_KB_16384
    select DRIVERS_I2C_GENERIC
+	select DRIVERS_I2C_HID
    select DRIVERS_SPI_ACPI
    select EC_GOOGLE_CHROMEEC
    select EC_GOOGLE_CHROMEEC_LPC
diff --git a/src/mainboard/google/zoombini/variants/meowth/devicetree.cb b/src/mainboard/google/zoombini/variants/meowth/devicetree.cb
index 88de878..4d40b63 100644
--- a/src/mainboard/google/zoombini/variants/meowth/devicetree.cb
+++ b/src/mainboard/google/zoombini/variants/meowth/devicetree.cb
@@ -53,6 +53,13 @@
    register "usb3_ports[0]" = "USB3_PORT_DEFAULT(OC2)"
    register "usb3_ports[1]" = "USB3_PORT_DEFAULT(OC3)"

+	# Touchscreen
+	register "i2c[0]" = "{
+		.speed = I2C_SPEED_FAST_PLUS,
+		.rise_time_ns = 98,
+		.fall_time_ns = 38,
+	}"
+
    device domain 0 on
    	device pci 00.0 on  end # Host Bridge
    	device pci 02.0 on  end # Integrated Graphics Device
@@ -63,7 +70,16 @@
    	device pci 14.0 on  end # USB xHCI
    	device pci 14.1 off end # USB xDCI (OTG)
    	device pci 14.5 off end # SDCard
-		device pci 15.0 on  end # I2C #0
+                device pci 15.0 on
+                        chip drivers/i2c/hid
+                                register "generic.hid" = ""WCOM50C1""
+                                register "generic.desc" = ""WCOM Digitizer""
+                                register "generic.irq" = "ACPI_IRQ_LEVEL_LOW(GPP_C14_IRQ)"
+                                register "generic.speed" = "I2C_SPEED_FAST_PLUS"
+                                register "hid_desc_reg_offset" = "0x1"
+                                device i2c 0a on end
+                        end
+                end # I2C #0
    	device pci 15.1 on  end # I2C #1
    	device pci 15.2 on  end # I2C #2
    	device pci 15.3 on  end # I2C #3
@@ -110,6 +126,7 @@
    			device spi 0 on end
    		end
    	end # GSPI #1
+		device pci 1e.3 on  end # GSPI #1
    	device pci 1f.0 on
    		chip ec/google/chromeec
    			device pnp 0c09.0 on end
diff --git a/src/mainboard/google/zoombini/variants/meowth/gpio.c b/src/mainboard/google/zoombini/variants/meowth/gpio.c
index 19c028e..21c4bbc 100644
--- a/src/mainboard/google/zoombini/variants/meowth/gpio.c
+++ b/src/mainboard/google/zoombini/variants/meowth/gpio.c
@@ -94,13 +94,13 @@
    			   NF1), /* UART_PCH_RX_DEBUG_TX */
 /* UART0_TXD */		PAD_CFG_NF(GPP_C9, NONE, DEEP,
    			   NF1), /* UART_PCH_TX_DEBUG_RX */
-/* UART0_RTS# */	PAD_CFG_GPO(GPP_C10, 0, DEEP), /* PP3300_TOUCH_EN */
+/* UART0_RTS# */	PAD_CFG_GPO(GPP_C10, 1, DEEP), /* PP3300_TOUCH_EN */
 /* UART0_CTS# */	PAD_NC(GPP_C11, NONE),
 /* Only P0 boards need an internal pullup */
 /* UART1_RXD */         PAD_CFG_GPI_APIC(GPP_C12, UP_20K, DEEP, EDGE_SINGLE,
    				 INVERT), /* H1_PCH_INT_ODL */
 /* UART1_TXD */		PAD_NC(GPP_C13, NONE),
-/* UART1_RTS# */	PAD_CFG_GPI_SCI(GPP_C14, NONE, DEEP, EDGE_SINGLE,
+/* UART1_RTS# */	PAD_CFG_GPI_APIC(GPP_C14, NONE, DEEP, LEVEL,
    				NONE), /* TOUCHSCREEN_INT_ODL */
 /* UART1_CTS# */	PAD_NC(GPP_C15, NONE),
 /* I2C0_SDA */		PAD_CFG_NF(GPP_C16, NONE, DEEP,