From 1b0f9c5458608ae4bd0e3517d33e1775195f0b7d Mon Sep 17 00:00:00 2001 From: Kun Liu Date: Wed, 5 Nov 2025 20:07:21 +0800 Subject: [PATCH] mb/google/nissa/var/telith: Add parade touchscreen support Add parade PRT3408 touchscreen support BUG=b:461693725 TEST=emerge-nissa coreboot chromeos-bootimage Change-Id: I7d320bcaf3554c9adde4813a366ee60c28b8cc13 Signed-off-by: Kun Liu Reviewed-on: https://review.coreboot.org/c/coreboot/+/90093 Tested-by: build bot (Jenkins) Reviewed-by: Subrata Banik Reviewed-by: Kapil Porwal --- .../google/brya/variants/telith/gpio.c | 2 +- .../brya/variants/telith/overridetree.cb | 19 +++++++++++++++++++ 2 files changed, 20 insertions(+), 1 deletion(-) diff --git a/src/mainboard/google/brya/variants/telith/gpio.c b/src/mainboard/google/brya/variants/telith/gpio.c index 75f7617655..7b8d8344cc 100644 --- a/src/mainboard/google/brya/variants/telith/gpio.c +++ b/src/mainboard/google/brya/variants/telith/gpio.c @@ -96,7 +96,7 @@ static const struct pad_config early_gpio_table[] = { /* C0 : SMBCLK ==> EN_PP3300_TCHSCR_X */ PAD_CFG_GPO(GPP_C0, 1, DEEP), /* C1 : SMBDATA ==> TCHSCR_RST_L */ - PAD_CFG_GPO(GPP_C1, 1, DEEP), + PAD_CFG_GPO(GPP_C1, 0, DEEP), /* H20 : IMGCLKOUT1 ==> WLAN_PERST_L */ PAD_CFG_GPO(GPP_H20, 0, DEEP), diff --git a/src/mainboard/google/brya/variants/telith/overridetree.cb b/src/mainboard/google/brya/variants/telith/overridetree.cb index 86c4bc43e6..7c8706d8bf 100644 --- a/src/mainboard/google/brya/variants/telith/overridetree.cb +++ b/src/mainboard/google/brya/variants/telith/overridetree.cb @@ -372,6 +372,7 @@ chip soc/intel/alderlake register "hid" = ""ELAN0001"" register "desc" = ""ELAN Touchscreen"" register "irq" = "ACPI_IRQ_LEVEL_LOW(GPP_C7_IRQ)" + register "detect" = "1" register "reset_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_C1)" register "reset_delay_ms" = "20" register "reset_off_delay_ms" = "4" @@ -384,6 +385,24 @@ chip soc/intel/alderlake register "use_gpio_for_status" = "true" device i2c 10 on end end + chip drivers/i2c/hid + register "generic.hid" = ""PRT3408"" + register "generic.desc" = ""Parade Touchscreen"" + register "generic.irq" = "ACPI_IRQ_LEVEL_LOW(GPP_C7_IRQ)" + register "generic.detect" = "1" + register "generic.reset_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_C1)" + register "generic.reset_delay_ms" = "20" + register "generic.reset_off_delay_ms" = "2" + register "generic.stop_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_C6)" + register "generic.stop_delay_ms" = "250" + register "generic.stop_off_delay_ms" = "25" + register "generic.enable_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPP_C0)" + register "generic.enable_delay_ms" = "1" + register "generic.has_power_resource" = "true" + register "generic.use_gpio_for_status" = "true" + register "hid_desc_reg_offset" = "0x01" + device i2c 24 on end + end end device ref i2c2 on chip drivers/intel/mipi_camera