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Commit 75a1fccf authored by Ben Skeggs's avatar Ben Skeggs
Browse files

drm/nouveau/dp: store unencoded link_bw everywhere 



Signed-off-by: default avatarBen Skeggs <bskeggs@redhat.com>
parent 27a45987

drivers/gpu/drm/nouveau/nouveau_bios.c

+8 −1
Original line number Diff line number Diff line
@@ -6199,7 +6199,14 @@ parse_dcb20_entry(struct drm_device *dev, struct dcb_table *dcb, 
	}

	case OUTPUT_DP:

		entry->dpconf.sor.link = (conf & 0x00000030) >> 4;

		entry->dpconf.link_bw = (conf & 0x00e00000) >> 21;

		switch ((conf & 0x00e00000) >> 21) {

		case 0:

			entry->dpconf.link_bw = 162000;

			break;

		default:

			entry->dpconf.link_bw = 270000;

			break;

		}

		switch ((conf & 0x0f000000) >> 24) {

		case 0xf:

			entry->dpconf.link_nr = 4;

drivers/gpu/drm/nouveau/nouveau_connector.c

+2 −5
Original line number Diff line number Diff line
@@ -708,11 +708,8 @@ nouveau_connector_mode_valid(struct drm_connector *connector, 
	case OUTPUT_TV:

		return get_slave_funcs(encoder)->mode_valid(encoder, mode);

	case OUTPUT_DP:

		if (nv_encoder->dp.link_bw == DP_LINK_BW_2_7)

			max_clock = nv_encoder->dp.link_nr * 270000;

		else

			max_clock = nv_encoder->dp.link_nr * 162000;



		max_clock  = nv_encoder->dp.link_nr;

		max_clock *= nv_encoder->dp.link_bw;

		clock = clock * nouveau_connector_bpp(connector) / 8;

		break;

	default:

drivers/gpu/drm/nouveau/nouveau_dp.c

+14 −14
Original line number Diff line number Diff line
@@ -516,7 +516,7 @@ nouveau_dp_link_train(struct drm_encoder *encoder, u32 datarate) 
	nouveau_bios_run_init_table(dev, ROM16(bios[6]), dp.dcb, dp.crtc);



	/* start off at highest link rate supported by encoder and display */

	if (nv_encoder->dp.link_bw == DP_LINK_BW_1_62)

	while (*link_bw > nv_encoder->dp.link_bw)

		link_bw++;



	while (link_bw[0]) {
@@ -566,24 +566,24 @@ nouveau_dp_detect(struct drm_encoder *encoder) 
	if (ret)

		return false;



	NV_DEBUG_KMS(dev, "encoder: link_bw %d, link_nr %d\n"

		      "display: link_bw %d, link_nr %d version 0x%02x\n",

		 nv_encoder->dcb->dpconf.link_bw,

		 nv_encoder->dcb->dpconf.link_nr,

		 dpcd[1], dpcd[2] & 0x0f, dpcd[0]);



	nv_encoder->dp.dpcd_version = dpcd[0];

	nv_encoder->dp.link_bw = 27000 * dpcd[1];

	nv_encoder->dp.link_nr = dpcd[2] & DP_MAX_LANE_COUNT_MASK;

	nv_encoder->dp.enhanced_frame = dpcd[2] & DP_ENHANCED_FRAME_CAP;



	nv_encoder->dp.link_bw = dpcd[1];

	if (nv_encoder->dp.link_bw != DP_LINK_BW_1_62 &&

	    !nv_encoder->dcb->dpconf.link_bw)

		nv_encoder->dp.link_bw = DP_LINK_BW_1_62;

	NV_DEBUG_KMS(dev, "display: %dx%d dpcd 0x%02x\n",

		     nv_encoder->dp.link_nr, nv_encoder->dp.link_bw, dpcd[0]);

	NV_DEBUG_KMS(dev, "encoder: %dx%d\n",

		     nv_encoder->dcb->dpconf.link_nr,

		     nv_encoder->dcb->dpconf.link_bw);



	nv_encoder->dp.link_nr = dpcd[2] & DP_MAX_LANE_COUNT_MASK;

	if (nv_encoder->dp.link_nr > nv_encoder->dcb->dpconf.link_nr)

	if (nv_encoder->dcb->dpconf.link_nr < nv_encoder->dp.link_nr)

		nv_encoder->dp.link_nr = nv_encoder->dcb->dpconf.link_nr;

	if (nv_encoder->dcb->dpconf.link_bw < nv_encoder->dp.link_bw)

		nv_encoder->dp.link_bw = nv_encoder->dcb->dpconf.link_bw;



	nv_encoder->dp.enhanced_frame = (dpcd[2] & DP_ENHANCED_FRAME_CAP);

	NV_DEBUG_KMS(dev, "maximum: %dx%d\n",

		     nv_encoder->dp.link_nr, nv_encoder->dp.link_bw);



	return true;

}