summaryrefslogtreecommitdiff
path: root/src/mainboard/asrock
diff options
context:
space:
mode:
authorTerry Cheong <htcheong@chromium.org>2024-06-04 13:15:54 +0800
committerFelix Held <felix-coreboot@felixheld.de>2024-08-02 01:19:36 +0000
commit3396c4027d3723a2f8693448f660748e2bb7c07f (patch)
treef293766d34833223dfcb18797742da88baf6a5ad /src/mainboard/asrock
parentef4d562d2fb8e5ecc8c917adac809814194aa937 (diff)
mb/google/brox/var/brox: Enable Class-D calibration
DC offset of class-D amplifier is 7mV in Brox which is larger than the expected 3mV. Add a section in the verb table to enable class-D calibration based on the updated verb table provided by Realtek in b:342506575 comment#6. This improves the offset to be less than 1mV. BUG=b:342506575 BRANCH=main TEST=Verify DC offset of speaker amplier output is less than 1mV with a multimeter when \ playing -100dB sine waves. Change-Id: I776f5c24ce3c829cbd64840957c1431608cf2b85 Signed-off-by: Terry Cheong <htcheong@chromium.org> Reviewed-on: https://review.coreboot.org/c/coreboot/+/82794 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Shelley Chen <shchen@google.com> Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
Diffstat (limited to 'src/mainboard/asrock')
0 files changed, 0 insertions, 0 deletions