Check if Odd pixel is required during DSC compute config and update the crtc_state to track the presence of odd pixels.
Signed-off-by: Ankit Nautiyal <[email protected]> --- drivers/gpu/drm/i915/display/intel_dp.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c index 433a629c2bae..44e7069c4d27 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.c +++ b/drivers/gpu/drm/i915/display/intel_dp.c @@ -2366,6 +2366,14 @@ static int intel_edp_dsc_compute_pipe_bpp(struct intel_dp *intel_dp, return 0; } +static bool intel_dp_dsc_needs_odd_pixel(int hdisplay, int replicated_pixels, int num_pipes) +{ + if (!replicated_pixels || num_pipes == 1) + return false; + + return ((hdisplay + replicated_pixels) / num_pipes) % 2; +} + int intel_dp_dsc_compute_config(struct intel_dp *intel_dp, struct intel_crtc_state *pipe_config, struct drm_connector_state *conn_state, @@ -2452,6 +2460,10 @@ int intel_dp_dsc_compute_config(struct intel_dp *intel_dp, adjusted_mode->crtc_hdisplay, pipe_config->dsc.slice_count, pipe_config->output_format); + pipe_config->dsc.has_odd_pixel = + intel_dp_dsc_needs_odd_pixel(adjusted_mode->crtc_hdisplay, + pipe_config->dsc.replicated_pixels, + num_joined_pipes); /* * VDSC engine operates at 1 Pixel per clock, so if peak pixel rate -- 2.45.2
