diff options
| author | David Francis <David.Francis@amd.com> | 2018-11-29 13:40:03 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2019-01-14 15:40:33 -0500 |
| commit | ad6756b4d773aae68430a7d8b3c35c6717de5a15 (patch) | |
| tree | 237b2f3271758140b80042d5b07add2eefe09680 /drivers/gpu/drm/amd/display/dc/dce | |
| parent | bbba983103842c31ae3013364d90b624df08087f (diff) | |
drm/amd/display: Shift dc link aux to aux_payload
[Why]
aux_payload should be the struct used inside dc to start
aux transactions. This will allow the old aux interface
to be seamlessly replaced.
[How]
Add three fields to aux_payload: reply, mot, defer_delay
This will mean that aux_payload has all data required
to submit a request. Shift dc_link to use this struct
Signed-off-by: David Francis <David.Francis@amd.com>
Reviewed-by: Harry Wentland <Harry.Wentland@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dce')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dce/dce_aux.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dce/dce_aux.c b/drivers/gpu/drm/amd/display/dc/dce/dce_aux.c index aaeb7faac0c4..760bc5cc329d 100644 --- a/drivers/gpu/drm/amd/display/dc/dce/dce_aux.c +++ b/drivers/gpu/drm/amd/display/dc/dce/dce_aux.c @@ -273,7 +273,8 @@ static int read_channel_reply(struct aux_engine *engine, uint32_t size, REG_GET(AUX_SW_DATA, AUX_SW_DATA, &reply_result_32); reply_result_32 = reply_result_32 >> 4; - *reply_result = (uint8_t)reply_result_32; + if (reply_result != NULL) + *reply_result = (uint8_t)reply_result_32; if (reply_result_32 == 0) { /* ACK */ uint32_t i = 0; |