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mb/google/trulo/var/uldrenite: Add fw_config probe for touchscreen

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Use fw_config to probe touchscreen.

BUG=b:392040004
BRANCH=firmware-trulo-15217.771.B
TEST=emerge-nissa coreboot chromeos-bootimage

Change-Id: I63512e85052bce974ffb0b738164bea440bd413c
Signed-off-by: John Su <john_su@compal.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/86144
Reviewed-by: Jayvik Desai <jayvik@google.com>
Reviewed-by: Ian Feng <ian_feng@compal.corp-partner.google.com>
Reviewed-by: Subrata Banik <subratabanik@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Frank Wu <frank_wu@compal.corp-partner.google.com>
This commit is contained in:
John Su 2025-01-24 21:10:09 +08:00 • committed by Subrata Banik
commit 3dabaf8868
2 changed files with 50 additions and 6 deletions
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31
src/mainboard/google/brya/variants/uldrenite/overridetree.cb
View file

@ -1,3 +1,10 @@
fw_config
field TOUCHSCREEN 4 4
option TOUCHSCREEN_UNKNOWN 0
option TOUCHSCREEN_NONE 1
end
end
chip soc/intel/alderlake
register "sagv" = "SaGv_Enabled"
@ -348,7 +355,9 @@ chip soc/intel/alderlake
register "enable_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPP_E17)"
register "enable_delay_ms" = "1"
register "has_power_resource" = "true"
device i2c 10 on end
device i2c 10 on
probe TOUCHSCREEN TOUCHSCREEN_UNKNOWN
end
end # EKTH5012
chip drivers/i2c/hid
register "generic.hid" = ""ELAN900C""
@ -364,7 +373,9 @@ chip soc/intel/alderlake
register "generic.stop_delay_ms" = "150"
register "generic.has_power_resource" = "1"
register "hid_desc_reg_offset" = "0x01"
device i2c 16 on end
device i2c 16 on
probe TOUCHSCREEN TOUCHSCREEN_UNKNOWN
end
end # EKTH7D18
chip drivers/i2c/hid
register "generic.hid" = ""GXTP7996""
@ -379,7 +390,9 @@ chip soc/intel/alderlake
register "generic.enable_delay_ms" = "10"
register "generic.has_power_resource" = "1"
register "hid_desc_reg_offset" = "0x01"
device i2c 5d on end
device i2c 5d on
probe TOUCHSCREEN TOUCHSCREEN_UNKNOWN
end
end # GXTP7996
chip drivers/i2c/hid
register "generic.hid" = ""WDHT0002""
@ -394,7 +407,9 @@ chip soc/intel/alderlake
register "generic.enable_delay_ms" = "1"
register "generic.has_power_resource" = "1"
register "hid_desc_reg_offset" = "0x20"
device i2c 2c on end
device i2c 2c on
probe TOUCHSCREEN TOUCHSCREEN_UNKNOWN
end
end # WDT8752A
chip drivers/i2c/hid
register "generic.hid" = ""WDHT2601""
@ -409,7 +424,9 @@ chip soc/intel/alderlake
register "generic.enable_delay_ms" = "1"
register "generic.has_power_resource" = "1"
register "hid_desc_reg_offset" = "0x20"
device i2c 3c on end
device i2c 3c on
probe TOUCHSCREEN TOUCHSCREEN_UNKNOWN
end
end # WDT8790A
chip drivers/i2c/hid
register "generic.hid" = ""GTCH7502""
@ -424,7 +441,9 @@ chip soc/intel/alderlake
register "generic.enable_delay_ms" = "30"
register "generic.has_power_resource" = "1"
register "hid_desc_reg_offset" = "0x01"
device i2c 40 on end
device i2c 40 on
probe TOUCHSCREEN TOUCHSCREEN_UNKNOWN
end
end # GTCH7502
end # I2C5
device ref pcie_rp2 on

25
src/mainboard/google/brya/variants/uldrenite/variant.c
View file

@ -4,6 +4,7 @@
#include <baseboard/variants.h>
#include <console/console.h>
#include <delay.h>
#include <fw_config.h>
#define RW350R_RST_DELAY_MS 20
#define RW350R_PERST_DELAY_MS 30
@ -21,6 +22,30 @@ static const struct pad_config rw350r_perst_pad[] = {
PAD_CFG_GPO(GPP_F13, 1, DEEP),
};
static const struct pad_config touchscreen_disable_pads[] = {
/* A21 : TCHSCR_REPORT_EN */
PAD_NC(GPP_A21, NONE),
/* B16 : SOC_I2C_TCHSCR_SDA */
PAD_NC(GPP_B16, NONE),
/* B17 : SOC_I2C_TCHSCR_SCL */
PAD_NC(GPP_B17, NONE),
/* D15 : TCHSCR_RST_L */
PAD_NC(GPP_D15, NONE),
/* D16 : TCHSCR_INT_ODL */
PAD_NC(GPP_D16, NONE),
/* E17 : EN_PP3300_TCHSCR_X */
PAD_NC(GPP_E17, NONE),
};
void fw_config_gpio_padbased_override(struct pad_config *padbased_table)
{
if (fw_config_probe(FW_CONFIG(TOUCHSCREEN, TOUCHSCREEN_NONE))) {
printk(BIOS_INFO, "Disable touchscreen GPIO pins.\n");
gpio_padbased_override(padbased_table, touchscreen_disable_pads,
ARRAY_SIZE(touchscreen_disable_pads));
}
}
void variant_init(void)
{
/*