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mb/google/rex/var/screebo: Prevent camera LED blinking during boot 

Configure _DSC to ACPI_DEVICE_SLEEP_D3_COLD so that driver skips
initial probe during kernel boot, preventing privacy LED blink.

BUG=b:317434358
TEST=none

Change-Id: I43044e64c2c3a645ec0cad2ac903cc19ac89c9af
Signed-off-by: Jason Chen <jason.z.chen@intel.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/79803
Reviewed-by: Subrata Banik <subratabanik@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kapil Porwal <kapilporwal@google.com>
Reviewed-by: Wentao Qin <qinwentao@huaqin.corp-partner.google.com>
This commit is contained in:
Jason Chen 2024-01-02 12:16:26 +08:00 committed by Jakub Czapiga
parent b4283a4fbb
commit 27069e61b0
1 changed files with 1 additions and 0 deletions
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src/mainboard/google/rex/variants/screebo/overridetree.cb
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@ -514,6 +514,7 @@ chip soc/intel/meteorlake
register "num_freq_entries" = "1"
register "link_freq[0]" = "400 * MHz"
register "remote_name" = ""IPU0""
register "max_dstate_for_probe" = "ACPI_DEVICE_SLEEP_D3_COLD"
register "has_power_resource" = "1"
#Controls