From 77426ffa6c056d37b5a3b833051ae2f720bde597 Mon Sep 17 00:00:00 2001 From: Jim Lai Date: Thu, 13 Jan 2022 15:22:38 +0800 Subject: mb/google/brya/var/kano: Prevent camera LED blinking during boot Camera LED blinks as sensor is being probed during kernel boot, which misleads user to belive camera has been turned on. Configure _DSC to ACPI_DEVICE_SLEEP_D3_COLD so that driver skips initial probe during kernel boot and prevent privacy LED blink. BUG=b:214155527 TEST=Build and boot Kano to OS. Verify entries in SSDT and monitor LED during boot. Signed-off-by: Jim Lai Change-Id: I92f1e88d0fcce49660a95d4402c8c4161e320168 Reviewed-on: https://review.coreboot.org/c/coreboot/+/61109 Reviewed-by: Tim Wawrzynczak Reviewed-by: Paul Menzel Tested-by: build bot (Jenkins) --- src/mainboard/google/brya/variants/kano/overridetree.cb | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'src/mainboard/google/brya/variants') diff --git a/src/mainboard/google/brya/variants/kano/overridetree.cb b/src/mainboard/google/brya/variants/kano/overridetree.cb index 684a4aec51..4a49aa72f4 100644 --- a/src/mainboard/google/brya/variants/kano/overridetree.cb +++ b/src/mainboard/google/brya/variants/kano/overridetree.cb @@ -368,6 +368,7 @@ chip soc/intel/alderlake register "num_freq_entries" = "1" register "link_freq[0]" = "360 * MHz" register "remote_name" = ""IPU0"" + register "max_dstate_for_probe" = "ACPI_DEVICE_SLEEP_D3_COLD" #Controls register "clk_panel.clks[0].clknum" = "IMGCLKOUT_3" @@ -400,8 +401,6 @@ chip soc/intel/alderlake register "chip_name" = ""AT24 EEPROM"" register "device_type" = "INTEL_ACPI_CAMERA_NVM" - register "pr0" = ""\\_SB.PCI0.I2C2.CAM0.PRIC"" - register "nvm_size" = "0x2000" register "nvm_pagesize" = "1" register "nvm_readonly" = "1" -- cgit v1.2.3