X-Git-Url: http://git.monstr.eu/?a=blobdiff_plain;f=drivers%2Fgpu%2Fdrm%2Famd%2Fdisplay%2Fdc%2Fdcn10%2Fdcn10_dpp_dscl.c;h=cb9767ddf93d3863190e414e4df57aaa96100cbb;hb=d842bc6c0579ca7643eed029beabab3ac562a335;hp=673b93f4fea519f3117286518a27abd6fd8a2b86;hpb=aef4226f914016cc00affa8476ba5164dcca56fd;p=linux-2.6-microblaze.git

diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_dpp_dscl.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_dpp_dscl.c
index 673b93f4fea5..cb9767ddf93d 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_dpp_dscl.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_dpp_dscl.c
@@ -217,6 +217,8 @@ static void dpp1_dscl_set_lb(
 	const struct line_buffer_params *lb_params,
 	enum lb_memory_config mem_size_config)
 {
+	uint32_t max_partitions = 63; /* Currently hardcoded on all ASICs before DCN 3.2 */
+
 	/* LB */
 	if (dpp->base.caps->dscl_data_proc_format == DSCL_DATA_PRCESSING_FIXED_FORMAT) {
 		/* DSCL caps: pixel data processed in fixed format */
@@ -239,9 +241,12 @@ static void dpp1_dscl_set_lb(
 			LB_DATA_FORMAT__ALPHA_EN, lb_params->alpha_en); /* Alpha enable */
 	}
 
+	if (dpp->base.caps->max_lb_partitions == 31)
+		max_partitions = 31;
+
 	REG_SET_2(LB_MEMORY_CTRL, 0,
 		MEMORY_CONFIG, mem_size_config,
-		LB_MAX_PARTITIONS, 63);
+		LB_MAX_PARTITIONS, max_partitions);
 }
 
 static const uint16_t *dpp1_dscl_get_filter_coeffs_64p(int taps, struct fixed31_32 ratio)