diff options
author | Rob Barnes <robbarnes@google.com> | 2021-06-16 15:18:04 -0600 |
---|---|---|
committer | Commit Bot <commit-bot@chromium.org> | 2021-06-22 16:14:52 +0000 |
commit | 7a3f5771d52fbcb0189f9402188b5a81c576c8ba (patch) | |
tree | 307b1b547a64abc16d9b95d299301266b3be882e /driver | |
parent | 4ec9bbd593d44d4709737fc4a5c8551f530a088b (diff) | |
download | chrome-ec-7a3f5771d52fbcb0189f9402188b5a81c576c8ba.tar.gz |
guybrush: Adjust PS8811 Chan B pre-shoot
Change PS8811 pre-shoot from 3dB to 1.5dB. This was incorrectly set to
3dB due to a misunderstanding of the datsheet.
BUG=b:186586795
TEST=Boot guybrush
BRANCH=None
Signed-off-by: Rob Barnes <robbarnes@google.com>
Change-Id: I49e150433408fc2b44fafb4bed406166f110fbeb
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2964957
Reviewed-by: Rock Chiu <rock.chiu@paradetech.corp-partner.google.com>
Reviewed-by: Diana Z <dzigterman@chromium.org>
Diffstat (limited to 'driver')
-rw-r--r-- | driver/retimer/ps8811.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/driver/retimer/ps8811.h b/driver/retimer/ps8811.h index 81b84d32e5..c3a98c1660 100644 --- a/driver/retimer/ps8811.h +++ b/driver/retimer/ps8811.h @@ -77,6 +77,10 @@ #define PS8811_CHAN_B_DE_4_5_PS_0_LSB 0x0 #define PS8811_CHAN_B_DE_4_5_PS_0_MSB 0x6 +/* De-emphasis -6 dB, Pre-shoot 1.5 dB */ +#define PS8811_CHAN_B_DE_6_PS_1_5_LSB 0x2 +#define PS8811_CHAN_B_DE_6_PS_1_5_MSB 0x16 + /* De-emphasis -6 dB, Pre-shoot 3 dB */ #define PS8811_CHAN_B_DE_6_PS_3_LSB 0x4 #define PS8811_CHAN_B_DE_6_PS_3_MSB 0x16 |