media: v4l: fwnode: Let the caller provide V4L2 fwnode endpoint

Instead of allocating the V4L2 fwnode endpoint in
v4l2_fwnode_endpoint_alloc_parse, let the caller to do this. This allows
setting default parameters for the endpoint which is a very common need
for drivers.

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>

1 files changed, 13 insertions, 13 deletions

diff --git a/drivers/media/i2c/smiapp/smiapp-core.c b/drivers/media/i2c/smiapp/smiapp-core.c
index 69495c6dc228..2d6059e3a577 100644
--- a/drivers/media/i2c/smiapp/smiapp-core.c
+++ b/drivers/media/i2c/smiapp/smiapp-core.c
@@ -2757,7 +2757,7 @@ static int __maybe_unused smiapp_resume(struct device *dev)
 static struct smiapp_hwconfig *smiapp_get_hwconfig(struct device *dev)
 {
 	struct smiapp_hwconfig *hwcfg;
-	struct v4l2_fwnode_endpoint *bus_cfg;
+	struct v4l2_fwnode_endpoint bus_cfg = { .bus_type = 0 };
 	struct fwnode_handle *ep;
 	struct fwnode_handle *fwnode = dev_fwnode(dev);
 	u32 rotation;
@@ -2771,27 +2771,27 @@ static struct smiapp_hwconfig *smiapp_get_hwconfig(struct device *dev)
 	if (!ep)
 		return NULL;
 
-	bus_cfg = v4l2_fwnode_endpoint_alloc_parse(ep);
-	if (IS_ERR(bus_cfg))
+	rval = v4l2_fwnode_endpoint_alloc_parse(ep, &bus_cfg);
+	if (rval)
 		goto out_err;
 
 	hwcfg = devm_kzalloc(dev, sizeof(*hwcfg), GFP_KERNEL);
 	if (!hwcfg)
 		goto out_err;
 
-	switch (bus_cfg->bus_type) {
+	switch (bus_cfg.bus_type) {
 	case V4L2_MBUS_CSI2_DPHY:
 		hwcfg->csi_signalling_mode = SMIAPP_CSI_SIGNALLING_MODE_CSI2;
-		hwcfg->lanes = bus_cfg->bus.mipi_csi2.num_data_lanes;
+		hwcfg->lanes = bus_cfg.bus.mipi_csi2.num_data_lanes;
 		break;
 	case V4L2_MBUS_CCP2:
-		hwcfg->csi_signalling_mode = (bus_cfg->bus.mipi_csi1.strobe) ?
+		hwcfg->csi_signalling_mode = (bus_cfg.bus.mipi_csi1.strobe) ?
 		SMIAPP_CSI_SIGNALLING_MODE_CCP2_DATA_STROBE :
 		SMIAPP_CSI_SIGNALLING_MODE_CCP2_DATA_CLOCK;
 		hwcfg->lanes = 1;
 		break;
 	default:
-		dev_err(dev, "unsupported bus %u\n", bus_cfg->bus_type);
+		dev_err(dev, "unsupported bus %u\n", bus_cfg.bus_type);
 		goto out_err;
 	}
 
@@ -2823,28 +2823,28 @@ static struct smiapp_hwconfig *smiapp_get_hwconfig(struct device *dev)
 	dev_dbg(dev, "nvm %d, clk %d, mode %d\n",
 		hwcfg->nvm_size, hwcfg->ext_clk, hwcfg->csi_signalling_mode);
 
-	if (!bus_cfg->nr_of_link_frequencies) {
+	if (!bus_cfg.nr_of_link_frequencies) {
 		dev_warn(dev, "no link frequencies defined\n");
 		goto out_err;
 	}
 
 	hwcfg->op_sys_clock = devm_kcalloc(
-		dev, bus_cfg->nr_of_link_frequencies + 1 /* guardian */,
+		dev, bus_cfg.nr_of_link_frequencies + 1 /* guardian */,
 		sizeof(*hwcfg->op_sys_clock), GFP_KERNEL);
 	if (!hwcfg->op_sys_clock)
 		goto out_err;
 
-	for (i = 0; i < bus_cfg->nr_of_link_frequencies; i++) {
-		hwcfg->op_sys_clock[i] = bus_cfg->link_frequencies[i];
+	for (i = 0; i < bus_cfg.nr_of_link_frequencies; i++) {
+		hwcfg->op_sys_clock[i] = bus_cfg.link_frequencies[i];
 		dev_dbg(dev, "freq %d: %lld\n", i, hwcfg->op_sys_clock[i]);
 	}
 
-	v4l2_fwnode_endpoint_free(bus_cfg);
+	v4l2_fwnode_endpoint_free(&bus_cfg);
 	fwnode_handle_put(ep);
 	return hwcfg;
 
 out_err:
-	v4l2_fwnode_endpoint_free(bus_cfg);
+	v4l2_fwnode_endpoint_free(&bus_cfg);
 	fwnode_handle_put(ep);
 	return NULL;
 }