diff options
| author | Xiaodong Yan <Xiaodong.Yan@amd.com> | 2019-08-30 17:07:01 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2019-10-10 19:34:06 -0500 |
| commit | 33fd29007d74ed1bd86b9b9af73624bab01bc9a7 (patch) | |
| tree | ff813ae948ce9ae72cd7c38d1d362603116cb927 | |
| parent | ce10a0f39b1949e9262f9dabbede65bf598516ec (diff) | |
drm/amd/display: make aux defer delay and aux sw start delay seperate
[why]
1. defer delay and sw start delay has been mixed up, defer delay was
programmed to AUX_SW_CONTROL:AUX_SW_START_DELAY.
2. There's no delay for defer
[how]
1. Set aux sw start to 0
2. Add delay for defer scenario
Signed-off-by: Xiaodong Yan <Xiaodong.Yan@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dce/dce_aux.c | 11 |
1 files changed, 9 insertions, 2 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 c3f9f4185ce8..48a0e4ae80c2 100644 --- a/drivers/gpu/drm/amd/display/dc/dce/dce_aux.c +++ b/drivers/gpu/drm/amd/display/dc/dce/dce_aux.c @@ -475,7 +475,7 @@ int dce_aux_transfer_raw(struct ddc_service *ddc, aux_req.action = i2caux_action_from_payload(payload); aux_req.address = payload->address; - aux_req.delay = payload->defer_delay * 10; + aux_req.delay = 0; aux_req.length = payload->length; aux_req.data = payload->data; @@ -544,8 +544,15 @@ bool dce_aux_transfer_with_retries(struct ddc_service *ddc, case AUX_TRANSACTION_REPLY_AUX_DEFER: case AUX_TRANSACTION_REPLY_I2C_OVER_AUX_NACK: case AUX_TRANSACTION_REPLY_I2C_OVER_AUX_DEFER: - if (++aux_defer_retries >= AUX_MAX_DEFER_RETRIES) + if (++aux_defer_retries >= AUX_MAX_DEFER_RETRIES) { goto fail; + } else { + if ((*payload->reply == AUX_TRANSACTION_REPLY_AUX_DEFER) || + (*payload->reply == AUX_TRANSACTION_REPLY_I2C_OVER_AUX_DEFER)) { + if (payload->defer_delay > 0) + msleep(payload->defer_delay); + } + } break; case AUX_TRANSACTION_REPLY_I2C_DEFER: |