Seunghwan Kim has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/37911 )
Change subject: mb/google/kohaku: Set reset hold time for I2C digitizer device ......................................................................
mb/google/kohaku: Set reset hold time for I2C digitizer device
According to device's spec, we should hold reset assertion for 100ms in its power on sequence. This change passes the hold time amount to driver for it.
BUG=b:129159369 BRANCH=firmware-hatch-12672.B TEST=Checked the reset signal timing in digitizer device's power on sequence
Signed-off-by: Seunghwan Kim sh_.kim@samsung.com Change-Id: Iccb33c13c9a390a2c971325c74c0c4ad4b08618e --- M src/mainboard/google/hatch/variants/kohaku/overridetree.cb 1 file changed, 4 insertions(+), 0 deletions(-)
git pull ssh://review.coreboot.org:29418/coreboot refs/changes/11/37911/1
diff --git a/src/mainboard/google/hatch/variants/kohaku/overridetree.cb b/src/mainboard/google/hatch/variants/kohaku/overridetree.cb index cd5ce0e..70d664c 100644 --- a/src/mainboard/google/hatch/variants/kohaku/overridetree.cb +++ b/src/mainboard/google/hatch/variants/kohaku/overridetree.cb @@ -208,6 +208,10 @@ register "generic.reset_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_A19)" register "generic.reset_delay_ms" = "1" register "generic.has_power_resource" = "1" + register "generic.property_count" = "1" + register "generic.property_list[0].type" = "ACPI_DP_TYPE_INTEGER" + register "generic.property_list[0].name" = ""post-power-on-delay-ms"" + register "generic.property_list[0].integer" = "100" register "hid_desc_reg_offset" = "0x1" device i2c 0x09 on end end