Am 22.09.20 um 09:03 schrieb Tian Tao:
Use drm_get_edid to get the resolution, if that fails, set it to a fixed resolution. Rewrite the desrtoy callback function to release resources.
Signed-off-by: Tian Tao tiantao6@hisilicon.com
Reviewed-by: Thomas Zimmermann tzimmermann@suse.de
drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_vdac.c | 38 +++++++++++++++++++++--- 1 file changed, 34 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_vdac.c b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_vdac.c index 376a05d..c6999ed 100644 --- a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_vdac.c +++ b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_vdac.c @@ -21,12 +21,24 @@ static int hibmc_connector_get_modes(struct drm_connector *connector) { int count;
void *edid;
struct hibmc_connector *hibmc_connector = to_hibmc_connector(connector);
edid = drm_get_edid(connector, &hibmc_connector->adapter);
if (edid) {
drm_connector_update_edid_property(connector, edid);count = drm_add_edid_modes(connector, edid);if (count)goto out;}
count = drm_add_modes_noedid(connector, connector->dev->mode_config.max_width, connector->dev->mode_config.max_height); drm_set_preferred_mode(connector, 1024, 768);
+out:
- kfree(edid); return count;
}
@@ -36,6 +48,14 @@ static enum drm_mode_status hibmc_connector_mode_valid(struct drm_connector *con return MODE_OK; }
+static void hibmc_connector_destroy(struct drm_connector *connector) +{
- struct hibmc_connector *hibmc_connector = to_hibmc_connector(connector);
- i2c_del_adapter(&hibmc_connector->adapter);
- drm_connector_cleanup(connector);
+}
static const struct drm_connector_helper_funcs hibmc_connector_helper_funcs = { .get_modes = hibmc_connector_get_modes, @@ -44,7 +64,7 @@ static const struct drm_connector_helper_funcs
static const struct drm_connector_funcs hibmc_connector_funcs = { .fill_modes = drm_helper_probe_single_connector_modes,
- .destroy = drm_connector_cleanup,
- .destroy = hibmc_connector_destroy, .reset = drm_atomic_helper_connector_reset, .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state, .atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
@@ -77,10 +97,17 @@ static const struct drm_encoder_funcs hibmc_encoder_funcs = { int hibmc_vdac_init(struct hibmc_drm_private *priv) { struct drm_device *dev = priv->dev;
- struct hibmc_connector *hibmc_connector = &priv->connector; struct drm_encoder *encoder = &priv->encoder;
- struct drm_connector *connector = &priv->connector;
struct drm_connector *connector = &hibmc_connector->base; int ret;
ret = hibmc_ddc_create(dev, hibmc_connector);
if (ret) {
drm_err(dev, "failed to create ddc: %d\n", ret);return ret;}
encoder->possible_crtcs = 0x1; ret = drm_encoder_init(dev, encoder, &hibmc_encoder_funcs, DRM_MODE_ENCODER_DAC, NULL);
@@ -91,12 +118,15 @@ int hibmc_vdac_init(struct hibmc_drm_private *priv)
drm_encoder_helper_add(encoder, &hibmc_encoder_helper_funcs);
- ret = drm_connector_init(dev, connector, &hibmc_connector_funcs,
DRM_MODE_CONNECTOR_VGA);
ret = drm_connector_init_with_ddc(dev, connector,
&hibmc_connector_funcs,DRM_MODE_CONNECTOR_VGA,&hibmc_connector->adapter);if (ret) { drm_err(dev, "failed to init connector: %d\n", ret); return ret; }
drm_connector_helper_add(connector, &hibmc_connector_helper_funcs);
drm_connector_attach_encoder(connector, encoder);