[coreboot-gerrit] Change in coreboot[master]: mb/google/poppy/variants/nocturne: add touchscreen register info

[Nick Vaccaro (Code Review)]

Nick Vaccaro has uploaded this change for review. ( https://review.coreboot.org/26316


Change subject: mb/google/poppy/variants/nocturne: add touchscreen register info
......................................................................

mb/google/poppy/variants/nocturne: add touchscreen register info

- add register information for touchscreen WCOM digitizer
- enable EN_PP3300_DX_TOUCHSCREEN (GPP_C22) to power touchscreen

BUG=b:78122599
BRANCH=none
TEST="emerge-nocturne coreboot chromeos-bootimage" and verify
touchscreen on Nocturne board works.

Change-Id: I9790a930e8ed2748d568ce58c931ce34b3e22007
Signed-off-by: Nick Vaccaro <nvaccaro at google.com>
---
M src/mainboard/google/poppy/variants/nocturne/devicetree.cb
M src/mainboard/google/poppy/variants/nocturne/gpio.c
2 files changed, 11 insertions(+), 2 deletions(-)



  git pull ssh://review.coreboot.org:29418/coreboot refs/changes/16/26316/1

diff --git a/src/mainboard/google/poppy/variants/nocturne/devicetree.cb b/src/mainboard/google/poppy/variants/nocturne/devicetree.cb
index ee4e1c7..04e9b0c 100644
--- a/src/mainboard/google/poppy/variants/nocturne/devicetree.cb
+++ b/src/mainboard/google/poppy/variants/nocturne/devicetree.cb
@@ -246,7 +246,16 @@
 		device pci 14.0 on  end # USB xHCI
 		device pci 14.1 on  end # USB xDCI (OTG)
 		device pci 14.2 on  end # Thermal Subsystem
-		device pci 15.0 on  end # I2C #0 - Touchscreen
+		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_E7_IRQ)"
+				register "generic.speed" = "I2C_SPEED_FAST_PLUS"
+				register "hid_desc_reg_offset" = "0x1"
+				device i2c 0a on end
+			end
+		end # I2C #0 - Touchscreen
 		device pci 15.1 on  end # I2C #1 - Trackpad
 		device pci 15.2 off end # I2C #2
 		device pci 15.3 on  end # I2C #3 - Camera
diff --git a/src/mainboard/google/poppy/variants/nocturne/gpio.c b/src/mainboard/google/poppy/variants/nocturne/gpio.c
index da3adb3..0e4852c 100644
--- a/src/mainboard/google/poppy/variants/nocturne/gpio.c
+++ b/src/mainboard/google/poppy/variants/nocturne/gpio.c
@@ -157,7 +157,7 @@
 	/* C21 : UART2_TXD ==> PCHTX_SERVORX_UART */
 	PAD_CFG_NF(GPP_C21, NONE, DEEP, NF1),
 	/* C22 : UART2_RTS# ==> EN_PP3300_DX_TOUCHSCREEN */
-	PAD_CFG_GPO(GPP_C22, 0, DEEP),
+	PAD_CFG_GPO(GPP_C22, 1, DEEP),
 	/* C23 : UART2_CTS# ==> PCH_WP_OD */
 	PAD_CFG_GPI_GPIO_DRIVER(GPP_C23, 20K_PU, DEEP),
 

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Gerrit-Project: coreboot
Gerrit-Branch: master
Gerrit-MessageType: newchange
Gerrit-Change-Id: I9790a930e8ed2748d568ce58c931ce34b3e22007
Gerrit-Change-Number: 26316
Gerrit-PatchSet: 1
Gerrit-Owner: Nick Vaccaro <nvaccaro at google.com>
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