From f8d7374bab0ee911054ff5012dc120172af80a61 Mon Sep 17 00:00:00 2001 From: Frank Wu Date: Fri, 25 Dec 2020 11:32:30 +0800 Subject: mb/google/zork/var/vilboz: Fix Goodix touchscreen power sequence According Goodix GT7375P Programming Guide_Rev.0.6, increase the stop delay time from 100 ms to 160 ms. The power sequence is not met with the latest guide_rev.0.6. BUG=b:176270381 BRANCH=zork TEST=Confirm the measured waveform complies with Goodix touchscreen spec. Signed-off-by: Frank Wu Change-Id: I687ffa2eb13a9ddecb3045c5e1540b94417329ec Reviewed-on: https://review.coreboot.org/c/coreboot/+/48907 Reviewed-by: EricR Lai Reviewed-by: Rob Barnes Reviewed-by: Kangheui Won Reviewed-by: Paul Menzel Tested-by: build bot (Jenkins) --- src/mainboard/google/zork/variants/vilboz/overridetree.cb | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'src/mainboard/google/zork') diff --git a/src/mainboard/google/zork/variants/vilboz/overridetree.cb b/src/mainboard/google/zork/variants/vilboz/overridetree.cb index a3c2c978cf..f484e9a713 100644 --- a/src/mainboard/google/zork/variants/vilboz/overridetree.cb +++ b/src/mainboard/google/zork/variants/vilboz/overridetree.cb @@ -108,7 +108,7 @@ chip soc/amd/picasso register "generic.reset_off_delay_ms" = "2" register "generic.reset_delay_ms" = "20" register "generic.stop_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPIO_144)" - register "generic.stop_delay_ms" = "100" + register "generic.stop_delay_ms" = "160" register "generic.stop_off_delay_ms" = "2" register "generic.has_power_resource" = "1" register "hid_desc_reg_offset" = "0x01" -- cgit v1.2.3