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drm/nouveau: recognise DCB connector type 0x41 as LVDS 

After looking at a number of different logs, it appears 0x41 likely
indicates the presense of an LVDS panel following the SPWG spec
(http://www.spwg.org/)

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
hifive-unleashed-5.1
Ben Skeggs 2011-04-18 09:57:48 +10:00
parent eea55c89e5
commit 8c3f6bb970
3 changed files with 7 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/gpu/drm/nouveau/nouveau_bios.c
View File

@ -6031,6 +6031,7 @@ parse_dcb_connector_table(struct nvbios *bios)
case DCB_CONNECTOR_DVI_I:
case DCB_CONNECTOR_DVI_D:
case DCB_CONNECTOR_LVDS:
case DCB_CONNECTOR_LVDS_SPWG:
case DCB_CONNECTOR_DP:
case DCB_CONNECTOR_eDP:
case DCB_CONNECTOR_HDMI_0:

1
drivers/gpu/drm/nouveau/nouveau_bios.h
View File

@ -82,6 +82,7 @@ enum dcb_connector_type {
DCB_CONNECTOR_DVI_I = 0x30,
DCB_CONNECTOR_DVI_D = 0x31,
DCB_CONNECTOR_LVDS = 0x40,
DCB_CONNECTOR_LVDS_SPWG = 0x41,
DCB_CONNECTOR_DP = 0x46,
DCB_CONNECTOR_eDP = 0x47,
DCB_CONNECTOR_HDMI_0 = 0x60,

8
drivers/gpu/drm/nouveau/nouveau_connector.c
View File

@ -442,7 +442,7 @@ nouveau_connector_set_property(struct drm_connector *connector,
}
/* LVDS always needs gpu scaling */
if (nv_connector->dcb->type == DCB_CONNECTOR_LVDS &&
if (connector->connector_type == DRM_MODE_CONNECTOR_LVDS &&
value == DRM_MODE_SCALE_NONE)
return -EINVAL;
@ -650,6 +650,7 @@ nouveau_connector_get_modes(struct drm_connector *connector)
ret = get_slave_funcs(encoder)->get_modes(encoder, connector);
if (nv_connector->dcb->type == DCB_CONNECTOR_LVDS ||
nv_connector->dcb->type == DCB_CONNECTOR_LVDS_SPWG ||
nv_connector->dcb->type == DCB_CONNECTOR_eDP)
ret += nouveau_connector_scaler_modes_add(connector);
@ -810,6 +811,7 @@ nouveau_connector_create(struct drm_device *dev, int index)
type = DRM_MODE_CONNECTOR_HDMIA;
break;
case DCB_CONNECTOR_LVDS:
case DCB_CONNECTOR_LVDS_SPWG:
type = DRM_MODE_CONNECTOR_LVDS;
funcs = &nouveau_connector_funcs_lvds;
break;
@ -838,7 +840,7 @@ nouveau_connector_create(struct drm_device *dev, int index)
drm_connector_helper_add(connector, &nouveau_connector_helper_funcs);
/* Check if we need dithering enabled */
if (dcb->type == DCB_CONNECTOR_LVDS) {
if (connector->connector_type == DRM_MODE_CONNECTOR_LVDS) {
bool dummy, is_24bit = false;
ret = nouveau_bios_parse_lvds_table(dev, 0, &dummy, &is_24bit);
@ -883,7 +885,7 @@ nouveau_connector_create(struct drm_device *dev, int index)
nv_connector->use_dithering ?
DRM_MODE_DITHERING_ON : DRM_MODE_DITHERING_OFF);
if (dcb->type != DCB_CONNECTOR_LVDS) {
if (connector->connector_type != DRM_MODE_CONNECTOR_LVDS) {
if (dev_priv->card_type >= NV_50)
connector->polled = DRM_CONNECTOR_POLL_HPD;
else