diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/core/dc_link.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/core/dc_link.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link.c b/drivers/gpu/drm/amd/display/dc/core/dc_link.c index 5ca72afe8f6f..f13da7c227f4 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_link.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_link.c @@ -1217,6 +1217,25 @@ static enum dc_status enable_link_dp(struct pipe_ctx *pipe_ctx) pipe_ctx->dis_clk->funcs->set_min_clocks_state( pipe_ctx->dis_clk, DM_PP_CLOCKS_STATE_NOMINAL); } else { +#if defined(CONFIG_DRM_AMD_DC_DCE12_0) + uint32_t dp_phyclk_in_khz; + const struct clocks_value clocks_value = + pipe_ctx->dis_clk->cur_clocks_value; + + /* 27mhz = 27000000hz= 27000khz */ + dp_phyclk_in_khz = link_settings.link_rate * 27000; + + if (((clocks_value.max_non_dp_phyclk_in_khz != 0) && + (dp_phyclk_in_khz > clocks_value.max_non_dp_phyclk_in_khz)) || + (dp_phyclk_in_khz > clocks_value.max_dp_phyclk_in_khz)) { + pipe_ctx->dis_clk->funcs->apply_clock_voltage_request( + pipe_ctx->dis_clk, + DM_PP_CLOCK_TYPE_DISPLAYPHYCLK, + dp_phyclk_in_khz, + false, + true); + } +#endif } } |