mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-26 19:00:25 +00:00
drm/nouveau: move LVDS detection back to connector detect() time
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Ben Skeggs
parent
2dfe36b1b6
commit
d17f395cdc
1 changed files with 87 additions and 115 deletions
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@ -236,20 +236,6 @@ nouveau_connector_detect(struct drm_connector *connector)
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struct nouveau_i2c_chan *i2c;
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int type, flags;
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if (nv_connector->dcb->type == DCB_CONNECTOR_LVDS)
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nv_encoder = find_encoder_by_type(connector, OUTPUT_LVDS);
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if (nv_encoder && nv_connector->native_mode) {
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unsigned status = connector_status_connected;
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#if defined(CONFIG_ACPI_BUTTON) || \
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(defined(CONFIG_ACPI_BUTTON_MODULE) && defined(MODULE))
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if (!nouveau_ignorelid && !acpi_lid_open())
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status = connector_status_unknown;
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#endif
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nouveau_connector_set_encoder(connector, nv_encoder);
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return status;
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}
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/* Cleanup the previous EDID block. */
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if (nv_connector->edid) {
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drm_mode_connector_update_edid_property(connector, NULL);
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@ -321,6 +307,67 @@ nouveau_connector_detect(struct drm_connector *connector)
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return connector_status_disconnected;
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}
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static enum drm_connector_status
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nouveau_connector_detect_lvds(struct drm_connector *connector)
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{
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struct drm_device *dev = connector->dev;
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struct drm_nouveau_private *dev_priv = dev->dev_private;
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struct nouveau_connector *nv_connector = nouveau_connector(connector);
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struct nouveau_encoder *nv_encoder = NULL;
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enum drm_connector_status status = connector_status_disconnected;
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/* Cleanup the previous EDID block. */
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if (nv_connector->edid) {
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drm_mode_connector_update_edid_property(connector, NULL);
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kfree(nv_connector->edid);
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nv_connector->edid = NULL;
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}
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nv_encoder = find_encoder_by_type(connector, OUTPUT_LVDS);
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if (!nv_encoder)
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return connector_status_disconnected;
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if (!dev_priv->vbios.fp_no_ddc) {
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status = nouveau_connector_detect(connector);
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if (status == connector_status_connected)
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goto out;
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}
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/* If no EDID found above, and the VBIOS indicates a hardcoded
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* modeline is avalilable for the panel, set it as the panel's
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* native mode and exit.
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*/
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if (nouveau_bios_fp_mode(dev, NULL) && (dev_priv->vbios.fp_no_ddc ||
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nv_encoder->dcb->lvdsconf.use_straps_for_mode)) {
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status = connector_status_connected;
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goto out;
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}
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/* Still nothing, some VBIOS images have a hardcoded EDID block
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* stored for the panel stored in them.
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*/
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if (!dev_priv->vbios.fp_no_ddc) {
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struct edid *edid =
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(struct edid *)nouveau_bios_embedded_edid(dev);
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if (edid) {
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nv_connector->edid = kmalloc(EDID_LENGTH, GFP_KERNEL);
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*(nv_connector->edid) = *edid;
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status = connector_status_connected;
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}
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}
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out:
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#if defined(CONFIG_ACPI_BUTTON) || \
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(defined(CONFIG_ACPI_BUTTON_MODULE) && defined(MODULE))
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if (status == connector_status_connected &&
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!nouveau_ignorelid && !acpi_lid_open())
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status = connector_status_unknown;
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#endif
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drm_mode_connector_update_edid_property(connector, nv_connector->edid);
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return status;
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}
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static void
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nouveau_connector_force(struct drm_connector *connector)
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{
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@ -534,21 +581,28 @@ static int
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nouveau_connector_get_modes(struct drm_connector *connector)
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{
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struct drm_device *dev = connector->dev;
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struct drm_nouveau_private *dev_priv = dev->dev_private;
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struct nouveau_connector *nv_connector = nouveau_connector(connector);
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struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
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struct drm_display_mode mode;
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int ret = 0;
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/* If we're not LVDS, destroy the previous native mode, the attached
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* monitor could have changed.
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/* destroy the native mode, the attached monitor could have changed.
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*/
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if (nv_connector->dcb->type != DCB_CONNECTOR_LVDS &&
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nv_connector->native_mode) {
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if (nv_connector->native_mode) {
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drm_mode_destroy(dev, nv_connector->native_mode);
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nv_connector->native_mode = NULL;
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}
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if (nv_connector->edid)
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ret = drm_add_edid_modes(connector, nv_connector->edid);
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else
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if (nv_encoder->dcb->type == OUTPUT_LVDS &&
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(nv_encoder->dcb->lvdsconf.use_straps_for_mode ||
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dev_priv->vbios.fp_no_ddc) &&
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nouveau_bios_fp_mode(dev, &mode)) {
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nv_connector->native_mode = drm_mode_duplicate(dev, &mode);
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}
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/* Find the native mode if this is a digital panel, if we didn't
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* find any modes through DDC previously add the native mode to
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@ -662,99 +716,28 @@ nouveau_connector_funcs = {
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.force = nouveau_connector_force
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};
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static int
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nouveau_connector_create_lvds(struct drm_device *dev,
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struct drm_connector *connector)
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{
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struct nouveau_connector *nv_connector = nouveau_connector(connector);
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struct drm_nouveau_private *dev_priv = dev->dev_private;
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struct nouveau_i2c_chan *i2c = NULL;
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struct nouveau_encoder *nv_encoder;
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struct drm_display_mode native, *mode, *temp;
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bool dummy, if_is_24bit = false;
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int ret, flags;
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nv_encoder = find_encoder_by_type(connector, OUTPUT_LVDS);
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if (!nv_encoder)
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return -ENODEV;
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ret = nouveau_bios_parse_lvds_table(dev, 0, &dummy, &if_is_24bit);
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if (ret) {
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NV_ERROR(dev, "Error parsing LVDS table, disabling LVDS\n");
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return ret;
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}
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nv_connector->use_dithering = !if_is_24bit;
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/* Firstly try getting EDID over DDC, if allowed and I2C channel
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* is available.
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*/
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if (!dev_priv->vbios.fp_no_ddc && nv_encoder->dcb->i2c_index < 0xf)
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i2c = nouveau_i2c_find(dev, nv_encoder->dcb->i2c_index);
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if (i2c) {
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nouveau_connector_ddc_prepare(connector, &flags);
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nv_connector->edid = drm_get_edid(connector, &i2c->adapter);
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nouveau_connector_ddc_finish(connector, flags);
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}
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/* If no EDID found above, and the VBIOS indicates a hardcoded
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* modeline is avalilable for the panel, set it as the panel's
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* native mode and exit.
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*/
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if (!nv_connector->edid && nouveau_bios_fp_mode(dev, &native) &&
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(nv_encoder->dcb->lvdsconf.use_straps_for_mode ||
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dev_priv->vbios.fp_no_ddc)) {
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nv_connector->native_mode = drm_mode_duplicate(dev, &native);
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goto out;
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}
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/* Still nothing, some VBIOS images have a hardcoded EDID block
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* stored for the panel stored in them.
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*/
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if (!nv_connector->edid && !nv_connector->native_mode &&
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!dev_priv->vbios.fp_no_ddc) {
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struct edid *edid =
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(struct edid *)nouveau_bios_embedded_edid(dev);
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if (edid) {
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nv_connector->edid = kmalloc(EDID_LENGTH, GFP_KERNEL);
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*(nv_connector->edid) = *edid;
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}
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}
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if (!nv_connector->edid)
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goto out;
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/* We didn't find/use a panel mode from the VBIOS, so parse the EDID
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* block and look for the preferred mode there.
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*/
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ret = drm_add_edid_modes(connector, nv_connector->edid);
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if (ret == 0)
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goto out;
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nv_connector->detected_encoder = nv_encoder;
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nv_connector->native_mode = nouveau_connector_native_mode(connector);
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list_for_each_entry_safe(mode, temp, &connector->probed_modes, head)
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drm_mode_remove(connector, mode);
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out:
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if (!nv_connector->native_mode) {
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NV_ERROR(dev, "LVDS present in DCB table, but couldn't "
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"determine its native mode. Disabling.\n");
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return -ENODEV;
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}
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drm_mode_connector_update_edid_property(connector, nv_connector->edid);
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return 0;
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}
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static const struct drm_connector_funcs
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nouveau_connector_funcs_lvds = {
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.dpms = drm_helper_connector_dpms,
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.save = NULL,
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.restore = NULL,
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.detect = nouveau_connector_detect_lvds,
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.destroy = nouveau_connector_destroy,
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.fill_modes = drm_helper_probe_single_connector_modes,
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.set_property = nouveau_connector_set_property,
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.force = nouveau_connector_force
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};
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int
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nouveau_connector_create(struct drm_device *dev,
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struct dcb_connector_table_entry *dcb)
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{
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const struct drm_connector_funcs *funcs = &nouveau_connector_funcs;
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struct drm_nouveau_private *dev_priv = dev->dev_private;
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struct nouveau_connector *nv_connector = NULL;
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struct drm_connector *connector;
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struct drm_encoder *encoder;
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int ret, type;
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int type;
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NV_DEBUG_KMS(dev, "\n");
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@ -787,6 +770,7 @@ nouveau_connector_create(struct drm_device *dev,
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case DCB_CONNECTOR_LVDS:
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NV_INFO(dev, "Detected a LVDS connector\n");
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type = DRM_MODE_CONNECTOR_LVDS;
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funcs = &nouveau_connector_funcs_lvds;
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break;
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case DCB_CONNECTOR_DP:
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NV_INFO(dev, "Detected a DisplayPort connector\n");
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@ -811,7 +795,7 @@ nouveau_connector_create(struct drm_device *dev,
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connector->interlace_allowed = false;
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connector->doublescan_allowed = false;
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drm_connector_init(dev, connector, &nouveau_connector_funcs, type);
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drm_connector_init(dev, connector, funcs, type);
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drm_connector_helper_add(connector, &nouveau_connector_helper_funcs);
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/* attach encoders */
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@ -841,9 +825,6 @@ nouveau_connector_create(struct drm_device *dev,
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drm_connector_attach_property(connector, dev->mode_config.dvi_i_select_subconnector_property, 0);
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}
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if (dcb->type != DCB_CONNECTOR_LVDS)
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nv_connector->use_dithering = false;
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switch (dcb->type) {
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case DCB_CONNECTOR_VGA:
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connector->polled = DRM_CONNECTOR_POLL_CONNECT;
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@ -883,14 +864,5 @@ nouveau_connector_create(struct drm_device *dev,
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}
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drm_sysfs_connector_add(connector);
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if (dcb->type == DCB_CONNECTOR_LVDS) {
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ret = nouveau_connector_create_lvds(dev, connector);
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if (ret) {
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connector->funcs->destroy(connector);
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return ret;
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}
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}
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return 0;
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}
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