diff options
| author | Justin TerAvest <teravest@chromium.org> | 2018-12-10 08:12:36 -0700 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2018-12-19 05:14:21 +0000 |
| commit | afd40b2e2f547baaa367541f7a53d033c0321bf2 (patch) | |
| tree | 3bc04fcf65fd6c98a7b77934a15d1c5f51b405ea /src/mainboard | |
| parent | da245353095d25ca9a8ee1a724135bd0ce5b5b1f (diff) | |
mb/google/octopus/var/ampton: Tune I2C Audio
The previous settings caused the I2C frequency for the audio bus to be
too high, at 417kHz. The settings in this commit correct the frequency
to 396kHz.
BUG=b:119423345
Change-Id: Ibed886e6e1b0df4df6b87f6291e515364b3bf718
Signed-off-by: Justin TerAvest <teravest@chromium.org>
Reviewed-on: https://review.coreboot.org/c/30129
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Diffstat (limited to 'src/mainboard')
| -rw-r--r-- | src/mainboard/google/octopus/variants/ampton/overridetree.cb | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/src/mainboard/google/octopus/variants/ampton/overridetree.cb b/src/mainboard/google/octopus/variants/ampton/overridetree.cb index 46d4dcdb22..b3f9416c80 100644 --- a/src/mainboard/google/octopus/variants/ampton/overridetree.cb +++ b/src/mainboard/google/octopus/variants/ampton/overridetree.cb @@ -12,8 +12,9 @@ chip soc/intel/apollolake }, .i2c[5] = { .speed = I2C_SPEED_FAST, - .rise_time_ns = 104, - .fall_time_ns = 52, + .rise_time_ns = 60, + .fall_time_ns = 20, + .data_hold_time_ns = 350, }, .i2c[6] = { .speed = I2C_SPEED_FAST, |