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| author |   Meenakshikumar Somasundaram <meenakshikumar.somasundaram@amd.com> | 2021-08-13 13:09:25 -0400 |
|---|---|---|
| committer |   Alex Deucher <alexander.deucher@amd.com> | 2021-10-06 15:52:48 -0400 |
| commit | 40fadb4c73a4589e6a9be545c377de13e67e0b93 (patch) | |
| tree | b1a710c7731ead042e68f34bba45d881deb2bd6a /drivers/gpu/drm/amd/display/dc/dce/dce_aux.c | |
| parent | drm/amd/display: Add debug flags for USB4 DP link training. (diff) | |
| download | linux-dev-40fadb4c73a4589e6a9be545c377de13e67e0b93.tar.xz linux-dev-40fadb4c73a4589e6a9be545c377de13e67e0b93.zip | |
drm/amd/display: Fix for access for ddc pin and aux engine.
[Why & How]
1. Remove unnecessary dummy interrupt source for USB4 HPD & HPD RX
2. Adjust parameter for DPCD writing of link training process of DPIA link
3. Adjust specific AUX defer delay for DPIA link
Reviewed-by: Jimmy Kizito <Jimmy.Kizito@amd.com>
Acked-by: Wayne Lin <Wayne.Lin@amd.com>
Acked-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Meenakshikumar Somasundaram <meenakshikumar.somasundaram@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dce/dce_aux.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dce/dce_aux.c | 3 |
1 files changed, 3 insertions, 0 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 5666543f095b..95cb4d7cc76a 100644 --- a/drivers/gpu/drm/amd/display/dc/dce/dce_aux.c +++ b/drivers/gpu/drm/amd/display/dc/dce/dce_aux.c @@ -627,6 +627,7 @@ int dce_aux_transfer_dmub_raw(struct ddc_service *ddc, #define AUX_MAX_I2C_DEFER_RETRIES 7 #define AUX_MAX_INVALID_REPLY_RETRIES 2 #define AUX_MAX_TIMEOUT_RETRIES 3 +#define AUX_DEFER_DELAY_FOR_DPIA 4 /*ms*/ static void dce_aux_log_payload(const char *payload_name, unsigned char *payload, uint32_t length, uint32_t max_length_to_log) @@ -772,6 +773,8 @@ bool dce_aux_transfer_with_retries(struct ddc_service *ddc, /* polling_timeout_period is in us */ if (aux110) defer_time_in_ms += aux110->polling_timeout_period / 1000; + else + defer_time_in_ms += AUX_DEFER_DELAY_FOR_DPIA; ++aux_defer_retries; fallthrough; case AUX_TRANSACTION_REPLY_I2C_OVER_AUX_DEFER: |