mb/google/nissa/var/yaviks: Extend sd_hold for touchpad/touchscreen
Extend sd_hold to meet touchpad/touchscreen SPEC.
touchscreen:
tHD > 0.2 us
touchpad:
0.3 us < tHD < 0.9 us
After applied the change, the tHD meets reqirement.
touchscreen:
0.056 us -> 0.28 us
touchpad:
0.056 us -> 0.384 us
BUG=b:263340540
TEST=build and measure the timing meet SPEC
Signed-off-by: Wisley Chen <wisley.chen@quanta.corp-partner.google.com>
Change-Id: I172d2ec8a4b16d8005106f55a37795cc72d69e98
Reviewed-on: https://review.coreboot.org/c/coreboot/+/70195
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kangheui Won <khwon@chromium.org>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
diff --git a/src/mainboard/google/brya/variants/yaviks/overridetree.cb b/src/mainboard/google/brya/variants/yaviks/overridetree.cb
index 61c9188..d84fccd 100644
--- a/src/mainboard/google/brya/variants/yaviks/overridetree.cb
+++ b/src/mainboard/google/brya/variants/yaviks/overridetree.cb
@@ -64,7 +64,7 @@
.speed = I2C_SPEED_FAST,
.scl_lcnt = 158,
.scl_hcnt = 79,
- .sda_hold = 7,
+ .sda_hold = 30,
}
},
.i2c[3] = {
@@ -82,7 +82,7 @@
.speed = I2C_SPEED_FAST,
.scl_lcnt = 158,
.scl_hcnt = 79,
- .sda_hold = 7,
+ .sda_hold = 40,
}
},
}"