mainboard/puff: Tune ALC5682I rise_fall times on i2c
Tunes the headphone amp i2c with measured signal shape.
BUG=b:147192377
BRANCH=none
TEST=builds and measured i2c frequency below 400khz
Change-Id: I60f73bcf60ed140f595c953be371b982a63f7b95
Signed-off-by: Edward O'Callaghan <quasisec@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/38459
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Edward O'Callaghan <quasisec@chromium.org>
Reviewed-by: Daniel Kurtz <djkurtz@google.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
diff --git a/src/mainboard/google/hatch/variants/puff/overridetree.cb b/src/mainboard/google/hatch/variants/puff/overridetree.cb
index bf9120a..3507e6d 100644
--- a/src/mainboard/google/hatch/variants/puff/overridetree.cb
+++ b/src/mainboard/google/hatch/variants/puff/overridetree.cb
@@ -161,8 +161,8 @@
},
.i2c[4] = {
.speed = I2C_SPEED_FAST,
- .rise_time_ns = 0,
- .fall_time_ns = 0,
+ .rise_time_ns = 60,
+ .fall_time_ns = 60,
},
}"