media: v4l: fwnode: Initialise the V4L2 fwnode endpoints to zero

Initialise the V4L2 fwnode endpoints to zero in all drivers using
v4l2_fwnode_endpoint_parse(). This prepares for setting default endpoint
flags as well as the bus type. Setting bus type to zero will continue to
guess the bus among the guessable set (parallel, Bt.656 and CSI-2 D-PHY).
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Tested-by: Steve Longerbeam <steve_longerbeam@mentor.com>
Tested-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

drivers/media/i2c/adv7604.c

@@ -3093,7 +3093,7 @@ MODULE_DEVICE_TABLE(of, adv76xx_of_id);
 
 static int adv76xx_parse_dt(struct adv76xx_state *state)
 {
-	struct v4l2_fwnode_endpoint bus_cfg;
+	struct v4l2_fwnode_endpoint bus_cfg = { .bus_type = 0 };
 	struct device_node *endpoint;
 	struct device_node *np;
 	unsigned int flags;

drivers/media/i2c/mt9v032.c

@@ -989,7 +989,7 @@ static struct mt9v032_platform_data *
 mt9v032_get_pdata(struct i2c_client *client)
 {
 	struct mt9v032_platform_data *pdata = NULL;
-	struct v4l2_fwnode_endpoint endpoint;
+	struct v4l2_fwnode_endpoint endpoint = { .bus_type = 0 };
 	struct device_node *np;
 	struct property *prop;
 

drivers/media/i2c/ov5647.c

@@ -532,7 +532,7 @@ static const struct v4l2_subdev_internal_ops ov5647_subdev_internal_ops = {
 
 static int ov5647_parse_dt(struct device_node *np)
 {
-	struct v4l2_fwnode_endpoint bus_cfg;
+	struct v4l2_fwnode_endpoint bus_cfg = { .bus_type = 0 };
 	struct device_node *ep;
 
 	int ret;

drivers/media/i2c/ov7670.c

@@ -1728,7 +1728,7 @@ static int ov7670_parse_dt(struct device *dev,
 			   struct ov7670_info *info)
 {
 	struct fwnode_handle *fwnode = dev_fwnode(dev);
-	struct v4l2_fwnode_endpoint bus_cfg;
+	struct v4l2_fwnode_endpoint bus_cfg = { .bus_type = 0 };
 	struct fwnode_handle *ep;
 	int ret;
 

drivers/media/i2c/s5c73m3/s5c73m3-core.c

@@ -1603,7 +1603,7 @@ static int s5c73m3_get_platform_data(struct s5c73m3 *state)
 	const struct s5c73m3_platform_data *pdata = dev->platform_data;
 	struct device_node *node = dev->of_node;
 	struct device_node *node_ep;
-	struct v4l2_fwnode_endpoint ep;
+	struct v4l2_fwnode_endpoint ep = { .bus_type = 0 };
 	int ret;
 
 	if (!node) {

drivers/media/i2c/s5k5baf.c

@@ -1841,7 +1841,7 @@ static int s5k5baf_parse_device_node(struct s5k5baf *state, struct device *dev)
 {
 	struct device_node *node = dev->of_node;
 	struct device_node *node_ep;
-	struct v4l2_fwnode_endpoint ep;
+	struct v4l2_fwnode_endpoint ep = { .bus_type = 0 };
 	int ret;
 
 	if (!node) {

drivers/media/i2c/tda1997x.c

@@ -2265,7 +2265,7 @@ MODULE_DEVICE_TABLE(of, tda1997x_of_id);
 static int tda1997x_parse_dt(struct tda1997x_state *state)
 {
 	struct tda1997x_platform_data *pdata = &state->pdata;
-	struct v4l2_fwnode_endpoint bus_cfg;
+	struct v4l2_fwnode_endpoint bus_cfg = { .bus_type = 0 };
 	struct device_node *ep;
 	struct device_node *np;
 	unsigned int flags;

drivers/media/i2c/tvp514x.c

@@ -989,7 +989,7 @@ static struct tvp514x_platform_data *
 tvp514x_get_pdata(struct i2c_client *client)
 {
 	struct tvp514x_platform_data *pdata = NULL;
-	struct v4l2_fwnode_endpoint bus_cfg;
+	struct v4l2_fwnode_endpoint bus_cfg = { .bus_type = 0 };
 	struct device_node *endpoint;
 	unsigned int flags;
 

drivers/media/i2c/tvp5150.c

@@ -1593,7 +1593,7 @@ static int tvp5150_init(struct i2c_client *c)
 
 static int tvp5150_parse_dt(struct tvp5150 *decoder, struct device_node *np)
 {
-	struct v4l2_fwnode_endpoint bus_cfg;
+	struct v4l2_fwnode_endpoint bus_cfg = { .bus_type = 0 };
 	struct device_node *ep;
 #ifdef CONFIG_MEDIA_CONTROLLER
 	struct device_node *connectors, *child;

drivers/media/i2c/tvp7002.c

@@ -889,7 +889,7 @@ static const struct v4l2_subdev_ops tvp7002_ops = {
 static struct tvp7002_config *
 tvp7002_get_pdata(struct i2c_client *client)
 {
-	struct v4l2_fwnode_endpoint bus_cfg;
+	struct v4l2_fwnode_endpoint bus_cfg = { .bus_type = 0 };
 	struct tvp7002_config *pdata = NULL;
 	struct device_node *endpoint;
 	unsigned int flags;

drivers/media/platform/am437x/am437x-vpfe.c

@@ -2426,7 +2426,6 @@ static struct vpfe_config *
 vpfe_get_pdata(struct vpfe_device *vpfe)
 {
 	struct device_node *endpoint = NULL;
-	struct v4l2_fwnode_endpoint bus_cfg;
 	struct device *dev = vpfe->pdev;
 	struct vpfe_subdev_info *sdinfo;
 	struct vpfe_config *pdata;
@@ -2446,6 +2445,7 @@ vpfe_get_pdata(struct vpfe_device *vpfe)
 		return NULL;
 
 	for (i = 0; ; i++) {
+		struct v4l2_fwnode_endpoint bus_cfg = { .bus_type = 0 };
 		struct device_node *rem;
 
 		endpoint = of_graph_get_next_endpoint(dev->of_node, endpoint);

drivers/media/platform/atmel/atmel-isc.c

@@ -2028,7 +2028,6 @@ static int isc_parse_dt(struct device *dev, struct isc_device *isc)
 {
 	struct device_node *np = dev->of_node;
 	struct device_node *epn = NULL, *rem;
-	struct v4l2_fwnode_endpoint v4l2_epn;
 	struct isc_subdev_entity *subdev_entity;
 	unsigned int flags;
 	int ret;
@@ -2036,6 +2035,8 @@ static int isc_parse_dt(struct device *dev, struct isc_device *isc)
 	INIT_LIST_HEAD(&isc->subdev_entities);
 
 	while (1) {
+		struct v4l2_fwnode_endpoint v4l2_epn = { .bus_type = 0 };
+
 		epn = of_graph_get_next_endpoint(np, epn);
 		if (!epn)
 			return 0;

drivers/media/platform/atmel/atmel-isi.c

@@ -790,7 +790,7 @@ static int atmel_isi_parse_dt(struct atmel_isi *isi,
 			struct platform_device *pdev)
 {
 	struct device_node *np = pdev->dev.of_node;
-	struct v4l2_fwnode_endpoint ep;
+	struct v4l2_fwnode_endpoint ep = { .bus_type = 0 };
 	int err;
 
 	/* Default settings for ISI */

drivers/media/platform/cadence/cdns-csi2rx.c

@@ -361,7 +361,7 @@ static int csi2rx_get_resources(struct csi2rx_priv *csi2rx,
 
 static int csi2rx_parse_dt(struct csi2rx_priv *csi2rx)
 {
-	struct v4l2_fwnode_endpoint v4l2_ep;
+	struct v4l2_fwnode_endpoint v4l2_ep = { .bus_type = 0 };
 	struct fwnode_handle *fwh;
 	struct device_node *ep;
 	int ret;

drivers/media/platform/cadence/cdns-csi2tx.c

@@ -432,7 +432,7 @@ static int csi2tx_get_resources(struct csi2tx_priv *csi2tx,
 
 static int csi2tx_check_lanes(struct csi2tx_priv *csi2tx)
 {
-	struct v4l2_fwnode_endpoint v4l2_ep;
+	struct v4l2_fwnode_endpoint v4l2_ep = { .bus_type = 0 };
 	struct device_node *ep;
 	int ret;
 

drivers/media/platform/davinci/vpif_capture.c

@@ -1511,7 +1511,6 @@ static struct vpif_capture_config *
 vpif_capture_get_pdata(struct platform_device *pdev)
 {
 	struct device_node *endpoint = NULL;
-	struct v4l2_fwnode_endpoint bus_cfg;
 	struct vpif_capture_config *pdata;
 	struct vpif_subdev_info *sdinfo;
 	struct vpif_capture_chan_config *chan;
@@ -1541,6 +1540,7 @@ vpif_capture_get_pdata(struct platform_device *pdev)
 		return NULL;
 
 	for (i = 0; i < VPIF_CAPTURE_NUM_CHANNELS; i++) {
+		struct v4l2_fwnode_endpoint bus_cfg = { .bus_type = 0 };
 		struct device_node *rem;
 		unsigned int flags;
 		int err;

drivers/media/platform/exynos4-is/media-dev.c

@@ -390,7 +390,7 @@ static int fimc_md_parse_port_node(struct fimc_md *fmd,
 {
 	struct fimc_source_info *pd = &fmd->sensor[index].pdata;
 	struct device_node *rem, *ep, *np;
-	struct v4l2_fwnode_endpoint endpoint;
+	struct v4l2_fwnode_endpoint endpoint = { .bus_type = 0 };
 	int ret;
 
 	/* Assume here a port node can have only one endpoint node. */

drivers/media/platform/exynos4-is/mipi-csis.c

@@ -718,7 +718,7 @@ static int s5pcsis_parse_dt(struct platform_device *pdev,
 			    struct csis_state *state)
 {
 	struct device_node *node = pdev->dev.of_node;
-	struct v4l2_fwnode_endpoint endpoint;
+	struct v4l2_fwnode_endpoint endpoint = { .bus_type = 0 };
 	int ret;
 
 	if (of_property_read_u32(node, "clock-frequency",

drivers/media/platform/pxa_camera.c

@@ -2298,7 +2298,7 @@ static int pxa_camera_pdata_from_dt(struct device *dev,
 {
 	u32 mclk_rate;
 	struct device_node *remote, *np = dev->of_node;
-	struct v4l2_fwnode_endpoint ep;
+	struct v4l2_fwnode_endpoint ep = { .bus_type = 0 };
 	int err = of_property_read_u32(np, "clock-frequency",
 				       &mclk_rate);
 	if (!err) {

drivers/media/platform/rcar-vin/rcar-csi2.c

@@ -743,7 +743,7 @@ static int rcsi2_parse_v4l2(struct rcar_csi2 *priv,
 static int rcsi2_parse_dt(struct rcar_csi2 *priv)
 {
 	struct device_node *ep;
-	struct v4l2_fwnode_endpoint v4l2_ep;
+	struct v4l2_fwnode_endpoint v4l2_ep = { .bus_type = 0 };
 	int ret;
 
 	ep = of_graph_get_endpoint_by_regs(priv->dev->of_node, 0, 0);

drivers/media/platform/renesas-ceu.c

@@ -1536,7 +1536,6 @@ static int ceu_parse_platform_data(struct ceu_device *ceudev,
 static int ceu_parse_dt(struct ceu_device *ceudev)
 {
 	struct device_node *of = ceudev->dev->of_node;
-	struct v4l2_fwnode_endpoint fw_ep;
 	struct device_node *ep, *remote;
 	struct ceu_subdev *ceu_sd;
 	unsigned int i;
@@ -1552,6 +1551,8 @@ static int ceu_parse_dt(struct ceu_device *ceudev)
 		return ret;
 
 	for (i = 0; i < num_ep; i++) {
+		struct v4l2_fwnode_endpoint fw_ep = { .bus_type = 0 };
+
 		ep = of_graph_get_endpoint_by_regs(of, 0, i);
 		if (!ep) {
 			dev_err(ceudev->dev,

drivers/media/platform/stm32/stm32-dcmi.c

@@ -1624,7 +1624,7 @@ static int dcmi_probe(struct platform_device *pdev)
 {
 	struct device_node *np = pdev->dev.of_node;
 	const struct of_device_id *match = NULL;
-	struct v4l2_fwnode_endpoint ep;
+	struct v4l2_fwnode_endpoint ep = { .bus_type = 0 };
 	struct stm32_dcmi *dcmi;
 	struct vb2_queue *q;
 	struct dma_chan *chan;

drivers/staging/media/imx/imx-media-csi.c

@@ -1053,7 +1053,7 @@ static int csi_link_validate(struct v4l2_subdev *sd,
 			     struct v4l2_subdev_format *sink_fmt)
 {
 	struct csi_priv *priv = v4l2_get_subdevdata(sd);
-	struct v4l2_fwnode_endpoint upstream_ep;
+	struct v4l2_fwnode_endpoint upstream_ep = { .bus_type = 0 };
 	bool is_csi2;
 	int ret;
 
@@ -1167,7 +1167,7 @@ static int csi_enum_mbus_code(struct v4l2_subdev *sd,
 			      struct v4l2_subdev_mbus_code_enum *code)
 {
 	struct csi_priv *priv = v4l2_get_subdevdata(sd);
-	struct v4l2_fwnode_endpoint upstream_ep;
+	struct v4l2_fwnode_endpoint upstream_ep = { .bus_type = 0 };
 	const struct imx_media_pixfmt *incc;
 	struct v4l2_mbus_framefmt *infmt;
 	int ret = 0;
@@ -1406,7 +1406,7 @@ static int csi_set_fmt(struct v4l2_subdev *sd,
 {
 	struct csi_priv *priv = v4l2_get_subdevdata(sd);
 	struct imx_media_video_dev *vdev = priv->vdev;
-	struct v4l2_fwnode_endpoint upstream_ep;
+	struct v4l2_fwnode_endpoint upstream_ep = { .bus_type = 0 };
 	const struct imx_media_pixfmt *cc;
 	struct v4l2_pix_format vdev_fmt;
 	struct v4l2_mbus_framefmt *fmt;
@@ -1545,7 +1545,7 @@ static int csi_set_selection(struct v4l2_subdev *sd,
 			     struct v4l2_subdev_selection *sel)
 {
 	struct csi_priv *priv = v4l2_get_subdevdata(sd);
-	struct v4l2_fwnode_endpoint upstream_ep;
+	struct v4l2_fwnode_endpoint upstream_ep = { .bus_type = 0 };
 	struct v4l2_mbus_framefmt *infmt;
 	struct v4l2_rect *crop, *compose;
 	int pad, ret;

include/media/v4l2-fwnode.h

@@ -139,6 +139,8 @@ struct v4l2_fwnode_link {
  * set the V4L2_MBUS_CSI2_CONTINUOUS_CLOCK flag. The caller should hold a
  * reference to @fwnode.
  *
+ * The caller must set the bus_type field of @vep to zero.
+ *
  * NOTE: This function does not parse properties the size of which is variable
  * without a low fixed limit. Please use v4l2_fwnode_endpoint_alloc_parse() in
  * new drivers instead.