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authorSeunghwan Kim <sh_.kim@samsung.com>2019-12-23 18:51:39 +0900
committerPatrick Georgi <pgeorgi@google.com>2019-12-27 09:03:15 +0000
commitf71991edc33b5c292da454e68f19bb0c264c0ffe (patch)
treeb4752b1d75a8beebce872b9aac0ad38a1a7b244b /src/mainboard/google
parentd60e9ab74ed6d29e4eb4581e7348ce38bd7c3eba (diff)
downloadcoreboot-f71991edc33b5c292da454e68f19bb0c264c0ffe.tar.xz
mb/google/kohaku: Update reset_delay_ms for digitizer device
We found the driver binding failure issue could be cleared with 100ms of "reset_delay_ms". Needs further check with device vendor, anyway it seems the IC need some time before communication after de-assertion of reset. BUG=b:129159369 BRANCH=firmware-hatch-12672.B TEST=Verified driver bound successfully. Signed-off-by: Seunghwan Kim <sh_.kim@samsung.com> Change-Id: Iccb33c13c9a390a2c971325c74c0c4ad4b08618e Reviewed-on: https://review.coreboot.org/c/coreboot/+/37911 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Furquan Shaikh <furquan@google.com>
Diffstat (limited to 'src/mainboard/google')
-rw-r--r--src/mainboard/google/hatch/variants/kohaku/overridetree.cb2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/mainboard/google/hatch/variants/kohaku/overridetree.cb b/src/mainboard/google/hatch/variants/kohaku/overridetree.cb
index 158731b8e7..ce8746932d 100644
--- a/src/mainboard/google/hatch/variants/kohaku/overridetree.cb
+++ b/src/mainboard/google/hatch/variants/kohaku/overridetree.cb
@@ -206,7 +206,7 @@ chip soc/intel/cannonlake
register "generic.irq" = "ACPI_IRQ_LEVEL_LOW(GPP_C7_IRQ)"
register "generic.enable_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPP_C15)"
register "generic.reset_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_A19)"
- register "generic.reset_delay_ms" = "1"
+ register "generic.reset_delay_ms" = "100"
register "generic.has_power_resource" = "1"
register "hid_desc_reg_offset" = "0x1"
device i2c 0x09 on end