diff options
| author | David Wu <david_wu@quanta.corp-partner.google.com> | 2024-08-12 14:14:00 +0800 |
|---|---|---|
| committer | Felix Held <felix-coreboot@felixheld.de> | 2024-08-13 13:25:33 +0000 |
| commit | e1e16e0cb9900607df1b59b041a8a34f8a54b88c (patch) | |
| tree | 88bb6822e0e0eca499b1f5abdedc7e5e807a5598 /src/mainboard/google/brya/variants/riven/overridetree.cb | |
| parent | f7ed007298e0d2f78114f056817a1abff6c64f54 (diff) | |
mb/google/nissa/var/riven: Add elan touchscreen support
This change adds the necessary configuration for the elan
touchscreen (ELAN9004) device, connected to I2C bus 16.
It includes settings for:
* HID descriptor
* Device description
* IRQ configuration
* Detection
* Reset, stop and enable GPIOs with their respective delays
* Power resource handling
* HID descriptor register offset
BUG=b:348125053 b:348126380
TEST=emerge-nissa coreboot
boot with elan TS, make sure elan TS is functional.
Change-Id: I64c5a11dfaacfcca34240375d4dca5c76a60f62e
Signed-off-by: David Wu <david_wu@quanta.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/83876
Reviewed-by: Eric Lai <ericllai@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Subrata Banik <subratabanik@google.com>
Diffstat (limited to 'src/mainboard/google/brya/variants/riven/overridetree.cb')
| -rw-r--r-- | src/mainboard/google/brya/variants/riven/overridetree.cb | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/src/mainboard/google/brya/variants/riven/overridetree.cb b/src/mainboard/google/brya/variants/riven/overridetree.cb index 411277f8e6..22a1bfce1d 100644 --- a/src/mainboard/google/brya/variants/riven/overridetree.cb +++ b/src/mainboard/google/brya/variants/riven/overridetree.cb @@ -256,6 +256,23 @@ chip soc/intel/alderlake device i2c 10 on end end chip drivers/i2c/hid + register "generic.hid" = ""ELAN9004"" + register "generic.desc" = ""ELAN 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" = "280" + register "generic.stop_off_delay_ms" = "2" + register "generic.enable_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPP_C0)" + register "generic.enable_delay_ms" = "1" + register "generic.has_power_resource" = "1" + register "hid_desc_reg_offset" = "0x01" + device i2c 16 on end + end + chip drivers/i2c/hid register "generic.hid" = ""GTCH7503"" register "generic.desc" = ""G2 Touchscreen"" register "generic.irq" = "ACPI_IRQ_LEVEL_LOW(GPP_C7_IRQ)" |