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-rw-r--r--drivers/gpu/drm/ast/ast_mode.c17
1 files changed, 10 insertions, 7 deletions
diff --git a/drivers/gpu/drm/ast/ast_mode.c b/drivers/gpu/drm/ast/ast_mode.c
index 1e30eaeb0e1b..692e7a3b3555 100644
--- a/drivers/gpu/drm/ast/ast_mode.c
+++ b/drivers/gpu/drm/ast/ast_mode.c
@@ -1210,9 +1210,9 @@ static int ast_get_modes(struct drm_connector *connector)
{
struct ast_connector *ast_connector = to_ast_connector(connector);
struct ast_private *ast = to_ast_private(connector->dev);
- struct edid *edid;
- int ret;
+ struct edid *edid = NULL;
bool flags = false;
+ int ret;
if (ast->tx_chip_type == AST_TX_DP501) {
ast->dp501_maxclk = 0xff;
@@ -1226,7 +1226,7 @@ static int ast_get_modes(struct drm_connector *connector)
else
kfree(edid);
}
- if (!flags)
+ if (!flags && ast_connector->i2c)
edid = drm_get_edid(connector, &ast_connector->i2c->adapter);
if (edid) {
drm_connector_update_edid_property(&ast_connector->base, edid);
@@ -1332,10 +1332,13 @@ static int ast_connector_init(struct drm_device *dev)
if (!ast_connector->i2c)
drm_err(dev, "failed to add ddc bus for connector\n");
- drm_connector_init_with_ddc(dev, connector,
- &ast_connector_funcs,
- DRM_MODE_CONNECTOR_VGA,
- &ast_connector->i2c->adapter);
+ if (ast_connector->i2c)
+ drm_connector_init_with_ddc(dev, connector, &ast_connector_funcs,
+ DRM_MODE_CONNECTOR_VGA,
+ &ast_connector->i2c->adapter);
+ else
+ drm_connector_init(dev, connector, &ast_connector_funcs,
+ DRM_MODE_CONNECTOR_VGA);
drm_connector_helper_add(connector, &ast_connector_helper_funcs);