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drm/nouveau/dp: store unencoded link_bw everywhere 

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Ben Skeggs 2011-08-04 09:55:44 +10:00
parent 27a4598737
commit 75a1fccf92
3 changed files with 26 additions and 22 deletions
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9
drivers/gpu/drm/nouveau/nouveau_bios.c
View File

@ -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;

7
drivers/gpu/drm/nouveau/nouveau_connector.c
View File

@ -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:

32
drivers/gpu/drm/nouveau/nouveau_dp.c
View File

@ -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 = 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_encoder->dp.link_bw = 27000 * dpcd[1];
nv_encoder->dp.link_nr = dpcd[2] & DP_MAX_LANE_COUNT_MASK;
if (nv_encoder->dp.link_nr > nv_encoder->dcb->dpconf.link_nr)
nv_encoder->dp.link_nr = nv_encoder->dcb->dpconf.link_nr;
nv_encoder->dp.enhanced_frame = dpcd[2] & DP_ENHANCED_FRAME_CAP;
nv_encoder->dp.enhanced_frame = (dpcd[2] & DP_ENHANCED_FRAME_CAP);
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);
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_DEBUG_KMS(dev, "maximum: %dx%d\n",
nv_encoder->dp.link_nr, nv_encoder->dp.link_bw);
return true;
}