diff options
Diffstat (limited to 'drivers/gpu/drm/udl/udl_connector.c')
| -rw-r--r-- | drivers/gpu/drm/udl/udl_connector.c | 31 |
1 files changed, 23 insertions, 8 deletions
diff --git a/drivers/gpu/drm/udl/udl_connector.c b/drivers/gpu/drm/udl/udl_connector.c index b3b2cedf6745..fe5cdbcf2636 100644 --- a/drivers/gpu/drm/udl/udl_connector.c +++ b/drivers/gpu/drm/udl/udl_connector.c @@ -22,13 +22,17 @@ static u8 *udl_get_edid(struct udl_device *udl) { u8 *block; - char rbuf[3]; + char *rbuf; int ret, i; block = kmalloc(EDID_LENGTH, GFP_KERNEL); if (block == NULL) return NULL; + rbuf = kmalloc(2, GFP_KERNEL); + if (rbuf == NULL) + goto error; + for (i = 0; i < EDID_LENGTH; i++) { ret = usb_control_msg(udl->ddev->usbdev, usb_rcvctrlpipe(udl->ddev->usbdev, 0), (0x02), @@ -36,16 +40,17 @@ static u8 *udl_get_edid(struct udl_device *udl) HZ); if (ret < 1) { DRM_ERROR("Read EDID byte %d failed err %x\n", i, ret); - i--; goto error; } block[i] = rbuf[1]; } + kfree(rbuf); return block; error: kfree(block); + kfree(rbuf); return NULL; } @@ -57,6 +62,14 @@ static int udl_get_modes(struct drm_connector *connector) edid = (struct edid *)udl_get_edid(udl); + /* + * We only read the main block, but if the monitor reports extension + * blocks then the drm edid code expects them to be present, so patch + * the extension count to 0. + */ + edid->checksum += edid->extensions; + edid->extensions = 0; + drm_mode_connector_update_edid_property(connector, edid); ret = drm_add_edid_modes(connector, edid); kfree(edid); @@ -84,7 +97,8 @@ udl_detect(struct drm_connector *connector, bool force) return connector_status_connected; } -struct drm_encoder *udl_best_single_encoder(struct drm_connector *connector) +static struct drm_encoder* +udl_best_single_encoder(struct drm_connector *connector) { int enc_id = connector->encoder_ids[0]; struct drm_mode_object *obj; @@ -97,8 +111,9 @@ struct drm_encoder *udl_best_single_encoder(struct drm_connector *connector) return encoder; } -int udl_connector_set_property(struct drm_connector *connector, struct drm_property *property, - uint64_t val) +static int udl_connector_set_property(struct drm_connector *connector, + struct drm_property *property, + uint64_t val) { return 0; } @@ -110,13 +125,13 @@ static void udl_connector_destroy(struct drm_connector *connector) kfree(connector); } -struct drm_connector_helper_funcs udl_connector_helper_funcs = { +static struct drm_connector_helper_funcs udl_connector_helper_funcs = { .get_modes = udl_get_modes, .mode_valid = udl_mode_valid, .best_encoder = udl_best_single_encoder, }; -struct drm_connector_funcs udl_connector_funcs = { +static struct drm_connector_funcs udl_connector_funcs = { .dpms = drm_helper_connector_dpms, .detect = udl_detect, .fill_modes = drm_helper_probe_single_connector_modes, @@ -138,7 +153,7 @@ int udl_connector_init(struct drm_device *dev, struct drm_encoder *encoder) drm_sysfs_connector_add(connector); drm_mode_connector_attach_encoder(connector, encoder); - drm_connector_attach_property(connector, + drm_object_attach_property(&connector->base, dev->mode_config.dirty_info_property, 1); return 0; |