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| author | Scott Collyer <scollyer@google.com> | 2021-03-16 07:22:25 -0700 |
|---|---|---|
| committer | Commit Bot <commit-bot@chromium.org> | 2021-04-15 18:24:31 +0000 |
| commit | e721551bbbdf0eb0edf107f57efd49577a6f8d88 (patch) | |
| tree | 5f824fc4641528b54dd85480503328b118f28261 /board/gingerbread | |
| parent | 654e8de3ae38ba76bbec24167899f9f90c1f1fab (diff) | |
| download | chrome-ec-e721551bbbdf0eb0edf107f57efd49577a6f8d88.tar.gz | |
honeybuns: Allow for board specific mf preference
This CL enables a given board to have its own policy regarding the mf
preference bit which is used by a UFP to signal its preferred pin
configuration in the DP Status message.
BUG=b:175434634
BRANCH=None
TEST=Verfied that the mf bit in the DP status message follows the
board preference.
Signed-off-by: Scott Collyer <scollyer@google.com>
Change-Id: Ied7cdb72d1e302aab25dd5531856b1c7c148e64f
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2765422
Tested-by: Scott Collyer <scollyer@chromium.org>
Reviewed-by: Diana Z <dzigterman@chromium.org>
Commit-Queue: Scott Collyer <scollyer@chromium.org>
Diffstat (limited to 'board/gingerbread')
| -rw-r--r-- | board/gingerbread/board.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/board/gingerbread/board.c b/board/gingerbread/board.c index a3cc78598f..4672ba0886 100644 --- a/board/gingerbread/board.c +++ b/board/gingerbread/board.c @@ -6,6 +6,7 @@ /* Gingerbread board-specific configuration */ #include "common.h" +#include "cros_board_info.h" #include "driver/ppc/sn5s330.h" #include "driver/tcpm/ps8xxx.h" #include "driver/tcpm/stm32gx.h" @@ -290,6 +291,25 @@ void board_overcurrent_event(int port, int is_overcurrented) { /* TODO: b/ - check correct operation for honeybuns */ } + +int dock_get_mf_preference(void) +{ + int rv; + uint32_t fw_config; + int mf = MF_OFF; + + /* + * MF (multi function) preferece is indicated by bit 0 of the fw_config + * data field. If this data field does not exist, then default to 4 lane + * mode. + */ + rv = cbi_get_fw_config(&fw_config); + if (!rv) + mf = CBI_FW_MF_PREFERENCE(fw_config); + + return mf; +} + #endif /* SECTION_IS_RW */ static void board_init(void) |