diff options
| author | Keith Short <keithshort@chromium.org> | 2020-11-16 15:08:47 -0700 |
|---|---|---|
| committer | Commit Bot <commit-bot@chromium.org> | 2020-11-18 00:13:25 +0000 |
| commit | 867fe225cbd2321bf07241213c43692b7bf122c4 (patch) | |
| tree | 3c2197c63d10275fcc1ef0b32ef4db85cc0318b5 /driver/tcpm/ps8xxx.h | |
| parent | ef1ebb6ee64a3e070057c50d87046a095971ccc5 (diff) | |
| download | chrome-ec-867fe225cbd2321bf07241213c43692b7bf122c4.tar.gz | |
ps8815: Add a delay after writes to ROLE_CONTROL
The PS8815 can corrupt the transmit buffer. Add a delay following writes
to the ROLE_CONTROL register to workaround the corruption until a new
revision of the chip is available.
BUG=b:171430855
BRANCH=firmware-volteer-13521.B-master
TEST=make buildalls
TEST=Connect DP+USB monitor to Delbin. Perform repeated power role swaps
and verify no corrupted PS_RDY packets.
Signed-off-by: Keith Short <keithshort@chromium.org>
Change-Id: If887af58b0a7c3f27df879156e0f234f88db14ed
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2544803
Reviewed-by: Aseda Aboagye <aaboagye@chromium.org>
Reviewed-by: Abe Levkoy <alevkoy@chromium.org>
Diffstat (limited to 'driver/tcpm/ps8xxx.h')
| -rw-r--r-- | driver/tcpm/ps8xxx.h | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/driver/tcpm/ps8xxx.h b/driver/tcpm/ps8xxx.h index 788e2f2655..6ef1cd9d90 100644 --- a/driver/tcpm/ps8xxx.h +++ b/driver/tcpm/ps8xxx.h @@ -89,12 +89,9 @@ #define PS8751_REG_MUX_USB_DCI_CFG 0xED #endif -#if defined(CONFIG_USB_PD_TCPM_PS8815) /* Vendor defined registers */ #define PS8815_P1_REG_HW_REVISION 0xF0 -#endif - extern const struct tcpm_drv ps8xxx_tcpm_drv; /** |