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authorTony Huang <tony-huang@quanta.corp-partner.google.com>2023-04-26 13:25:03 +0800
committerFelix Held <felix-coreboot@felixheld.de>2023-04-27 13:02:57 +0000
commit0f8c03b59320b16d3cedb011d5778b3f0ead1e12 (patch)
tree19741169f15a545a6710f9eb6c2fbee9b386d83a /src
parent7915884a2fa6b155e3984f695c155252f9f92ae4 (diff)
mb/google/nissa/var/yavilla: Add elan touchscreen support
Update devicetree to support ELAN I2C generic touchscreen. BUG=b:273791621 BRANCH=firmware-nissa-15217.B TEST=emerge-nissa coreboot Change-Id: I2779c2930d89ff42233f9b20bd8abdf6dc00c0e0 Signed-off-by: Tony Huang <tony-huang@quanta.corp-partner.google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/74776 Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Derek Huang <derekhuang@google.com>
Diffstat (limited to 'src')
-rw-r--r--src/mainboard/google/brya/variants/yavilla/overridetree.cb16
1 files changed, 16 insertions, 0 deletions
diff --git a/src/mainboard/google/brya/variants/yavilla/overridetree.cb b/src/mainboard/google/brya/variants/yavilla/overridetree.cb
index f7798e761b..33e557143f 100644
--- a/src/mainboard/google/brya/variants/yavilla/overridetree.cb
+++ b/src/mainboard/google/brya/variants/yavilla/overridetree.cb
@@ -156,6 +156,22 @@ chip soc/intel/alderlake
end
end
device ref i2c1 on
+ chip drivers/i2c/generic
+ register "hid" = ""ELAN0001""
+ register "desc" = ""ELAN Touchscreen""
+ register "irq" = "ACPI_IRQ_LEVEL_LOW(GPP_C7_IRQ)"
+ register "probed" = "1"
+ register "reset_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_C1)"
+ register "reset_delay_ms" = "20"
+ register "reset_off_delay_ms" = "2"
+ register "stop_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_C6)"
+ register "stop_delay_ms" = "280"
+ register "stop_off_delay_ms" = "2"
+ register "enable_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPP_C0)"
+ register "enable_delay_ms" = "1"
+ register "has_power_resource" = "1"
+ device i2c 10 on end
+ end
chip drivers/i2c/hid
register "generic.hid" = ""ELAN2513""
register "generic.desc" = ""ELAN Touchscreen""