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 <ankit.k.nautiyal@xxxxxxxxx>
---
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 026254687a8d..b512e2dd9b37 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
