From 38afe9e31c72279a58e337f48b828e4165c601f3 Mon Sep 17 00:00:00 2001 From: Kenneth Chan Date: Wed, 8 Dec 2021 18:56:50 +0800 Subject: mb/google/guybrush/var/dewatt: Add Elan touchscreen Add Elan 6918 touchscreen for dewatt. (EKTH6918 Product Spec V0.5) BUG=b:208373433 TEST=emerge-guybrush coreboot chromeos-bootimage. Teseted with Elan 6918 touchscreen. Signed-off-by: Kenneth Chan Change-Id: I28a7f5891e09ffa393c93881be68641d955efdf8 Reviewed-on: https://review.coreboot.org/c/coreboot/+/59975 Tested-by: build bot (Jenkins) Reviewed-by: Rob Barnes --- .../google/guybrush/variants/dewatt/overridetree.cb | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) (limited to 'src/mainboard/google/guybrush/variants/dewatt/overridetree.cb') diff --git a/src/mainboard/google/guybrush/variants/dewatt/overridetree.cb b/src/mainboard/google/guybrush/variants/dewatt/overridetree.cb index bbcb79c40c..a1614c9e03 100644 --- a/src/mainboard/google/guybrush/variants/dewatt/overridetree.cb +++ b/src/mainboard/google/guybrush/variants/dewatt/overridetree.cb @@ -63,4 +63,23 @@ chip soc/amd/cezanne device i2c 2c on end end end # I2C0 + device ref i2c_1 on + chip drivers/i2c/hid + register "generic.hid" = ""ELAN6918"" + register "generic.desc" = ""ELAN Touchscreen"" + register "generic.irq_gpio" = "ACPI_GPIO_IRQ_LEVEL_LOW(GPIO_89)" + register "generic.probed" = "1" + register "generic.reset_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPIO_121)" + register "generic.reset_delay_ms" = "20" + register "generic.reset_off_delay_ms" = "2" + register "generic.stop_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPIO_120)" + register "generic.stop_off_delay_ms" = "2" + register "generic.enable_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPIO_68)" + register "generic.enable_delay_ms" = "1" + register "generic.has_power_resource" = "1" + register "generic.disable_gpio_export_in_crs" = "1" + register "hid_desc_reg_offset" = "0x01" + device i2c 10 on end + end + end # I2C1 end # chip soc/amd/cezanne -- cgit v1.2.3