diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/core/dc_link_ddc.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/core/dc_link_ddc.c | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link_ddc.c b/drivers/gpu/drm/amd/display/dc/core/dc_link_ddc.c index dec12de37642..c5936e064360 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_link_ddc.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_link_ddc.c @@ -37,8 +37,13 @@ #include "dc_link_ddc.h" #include "dce/dce_aux.h" +/*DP to Dual link DVI converter*/ +static const uint8_t DP_DVI_CONVERTER_ID_4[] = "m2DVIa"; +static const uint8_t DP_DVI_CONVERTER_ID_5[] = "3393N2"; + #define AUX_POWER_UP_WA_DELAY 500 #define I2C_OVER_AUX_DEFER_WA_DELAY 70 +#define I2C_OVER_AUX_DEFER_WA_DELAY_1MS 1 /* CV smart dongle slave address for retrieving supported HDTV modes*/ #define CV_SMART_DONGLE_ADDRESS 0x20 @@ -282,11 +287,17 @@ static uint32_t defer_delay_converter_wa( struct dc_link *link = ddc->link; if (link->dpcd_caps.branch_dev_id == DP_BRANCH_DEVICE_ID_0080E1 && - !memcmp(link->dpcd_caps.branch_dev_name, - DP_DVI_CONVERTER_ID_4, - sizeof(link->dpcd_caps.branch_dev_name))) + !memcmp(link->dpcd_caps.branch_dev_name, + DP_DVI_CONVERTER_ID_4, + sizeof(link->dpcd_caps.branch_dev_name))) return defer_delay > I2C_OVER_AUX_DEFER_WA_DELAY ? defer_delay : I2C_OVER_AUX_DEFER_WA_DELAY; + if (link->dpcd_caps.branch_dev_id == DP_BRANCH_DEVICE_ID_006037 && + !memcmp(link->dpcd_caps.branch_dev_name, + DP_DVI_CONVERTER_ID_5, + sizeof(link->dpcd_caps.branch_dev_name))) + return defer_delay > I2C_OVER_AUX_DEFER_WA_DELAY_1MS ? + I2C_OVER_AUX_DEFER_WA_DELAY_1MS : defer_delay; return defer_delay; } |