diff options
| author | Rob Barnes <robbarnes@google.com> | 2021-04-27 06:44:55 -0600 |
|---|---|---|
| committer | Commit Bot <commit-bot@chromium.org> | 2021-04-27 22:42:35 +0000 |
| commit | da02ed5aace26a2abe545daaede8a18a100cc197 (patch) | |
| tree | a33a181896aeb2e84048edb6f08d824f9ad0a2b8 /board | |
| parent | da8382de9741fad4af44dda39e59ec232f1ea66c (diff) | |
| download | chrome-ec-da02ed5aace26a2abe545daaede8a18a100cc197.tar.gz | |
ANX7451: Set upstream AUX FLIP
AUX flip control must be enabled. Otherwise alternate mode will not work
on ANX7451 when cable is flipped. The USB registers use a separate i2c
address that must be dynamically configured. Since there may be multiple
ANX74** parts on a board, this address must be dynamically configured
using a board callback.
BUG=b:185276137
TEST=Display works when cable is flipped on B2
BRANCH=None
Signed-off-by: Rob Barnes <robbarnes@google.com>
Change-Id: I144131b2f53985d97e0be960e202366f726dd90b
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2854120
Reviewed-by: Diana Z <dzigterman@chromium.org>
Diffstat (limited to 'board')
| -rw-r--r-- | board/guybrush/board.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/board/guybrush/board.c b/board/guybrush/board.c index 85861a9995..75ffa3d183 100644 --- a/board/guybrush/board.c +++ b/board/guybrush/board.c @@ -165,6 +165,17 @@ __override int board_c1_ps8818_mux_set(const struct usb_mux *me, return rv; } +/* + * ANX7491(A1) and ANX7451(C1) are on the same i2c bus. Both default + * to 0x29 for the USB i2c address. This moves ANX7451(C1) USB i2c + * address to 0x2A. ANX7491(A1) will stay at the default 0x29. + */ +uint16_t board_anx7451_get_usb_i2c_addr(const struct usb_mux *me) +{ + ASSERT(me->usb_port == USBC_PORT_C1); + return 0x2a; +} + void motion_interrupt(enum gpio_signal signal) { switch (signal) { |