[PATCH 03/22] drm/amd/display: Add debug option to disable DSC support

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From: Wenjing Liu <Wenjing.Liu@xxxxxxx>

[how]
Empty dsc enc caps when debug option is set to disable DSC.

Change-Id: I95e63c63bb0513a80144087c8327dcdcfa23c494
Signed-off-by: Wenjing Liu <Wenjing.Liu@xxxxxxx>
Reviewed-by: Nikola Cornij <Nikola.Cornij@xxxxxxx>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@xxxxxxx>
IP-reviewed-by: Wenjing Liu <Wenjing.Liu@xxxxxxx>
---
 drivers/gpu/drm/amd/display/dc/dc.h         | 1 +
 drivers/gpu/drm/amd/display/dc/dsc/dc_dsc.c | 3 ++-
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/display/dc/dc.h b/drivers/gpu/drm/amd/display/dc/dc.h
index 3fa85a54360f..7d31dcb9e37f 100644
--- a/drivers/gpu/drm/amd/display/dc/dc.h
+++ b/drivers/gpu/drm/amd/display/dc/dc.h
@@ -425,6 +425,7 @@ struct dc_debug_options {
 	bool validate_dml_output;
 	bool enable_dmcub_surface_flip;
 	bool usbc_combo_phy_reset_wa;
+	bool disable_dsc;
 };
 
 struct dc_debug_data {
diff --git a/drivers/gpu/drm/amd/display/dc/dsc/dc_dsc.c b/drivers/gpu/drm/amd/display/dc/dsc/dc_dsc.c
index 8b78fcbfe746..87d682d25278 100644
--- a/drivers/gpu/drm/amd/display/dc/dsc/dc_dsc.c
+++ b/drivers/gpu/drm/amd/display/dc/dsc/dc_dsc.c
@@ -224,7 +224,8 @@ static void get_dsc_enc_caps(
 
 	memset(dsc_enc_caps, 0, sizeof(struct dsc_enc_caps));
 	if (dsc) {
-		dsc->funcs->dsc_get_enc_caps(dsc_enc_caps, pixel_clock_100Hz);
+		if (!dsc->ctx->dc->debug.disable_dsc)
+			dsc->funcs->dsc_get_enc_caps(dsc_enc_caps, pixel_clock_100Hz);
 		if (dsc->ctx->dc->debug.native422_support)
 			dsc_enc_caps->color_formats.bits.YCBCR_NATIVE_422 = 1;
 	}
-- 
2.17.1

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