[media] s5p-fimc: Keep local copy of sensors platform data

Use a copy of sensor platform data structure, rather than referencing
external platform data from the driver. This allows to fill the local
copy with values parsed from device tree when needed.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/platform/s5p-fimc/fimc-capture.c

@@ -50,9 +50,9 @@ static int fimc_capture_hw_init(struct fimc_dev *fimc)
 	fimc_prepare_dma_offset(ctx, &ctx->d_frame);
 	fimc_set_yuv_order(ctx);
 
-	fimc_hw_set_camera_polarity(fimc, sensor->pdata);
-	fimc_hw_set_camera_type(fimc, sensor->pdata);
-	fimc_hw_set_camera_source(fimc, sensor->pdata);
+	fimc_hw_set_camera_polarity(fimc, &sensor->pdata);
+	fimc_hw_set_camera_type(fimc, &sensor->pdata);
+	fimc_hw_set_camera_source(fimc, &sensor->pdata);
 	fimc_hw_set_camera_offset(fimc, &ctx->s_frame);
 
 	ret = fimc_set_scaler_info(ctx);

drivers/media/platform/s5p-fimc/fimc-lite.c

@@ -135,7 +135,7 @@ static int fimc_lite_hw_init(struct fimc_lite *fimc)
 	sensor = v4l2_get_subdev_hostdata(pipeline->subdevs[IDX_SENSOR]);
 	spin_lock_irqsave(&fimc->slock, flags);
 
-	flite_hw_set_camera_bus(fimc, sensor->pdata);
+	flite_hw_set_camera_bus(fimc, &sensor->pdata);
 	flite_hw_set_source_format(fimc, &fimc->inp_frame);
 	flite_hw_set_window_offset(fimc, &fimc->inp_frame);
 	flite_hw_set_output_dma(fimc, &fimc->out_frame, true);

drivers/media/platform/s5p-fimc/fimc-mdevice.c

@@ -252,27 +252,27 @@ static struct v4l2_subdev *fimc_md_register_sensor(struct fimc_md *fmd,
 	if (!s_info || !fmd)
 		return NULL;
 
-	adapter = i2c_get_adapter(s_info->pdata->i2c_bus_num);
+	adapter = i2c_get_adapter(s_info->pdata.i2c_bus_num);
 	if (!adapter) {
 		v4l2_warn(&fmd->v4l2_dev,
 			  "Failed to get I2C adapter %d, deferring probe\n",
-			  s_info->pdata->i2c_bus_num);
+			  s_info->pdata.i2c_bus_num);
 		return ERR_PTR(-EPROBE_DEFER);
 	}
 	sd = v4l2_i2c_new_subdev_board(&fmd->v4l2_dev, adapter,
-				       s_info->pdata->board_info, NULL);
+				       s_info->pdata.board_info, NULL);
 	if (IS_ERR_OR_NULL(sd)) {
 		i2c_put_adapter(adapter);
 		v4l2_warn(&fmd->v4l2_dev,
 			  "Failed to acquire subdev %s, deferring probe\n",
-			  s_info->pdata->board_info->type);
+			  s_info->pdata.board_info->type);
 		return ERR_PTR(-EPROBE_DEFER);
 	}
 	v4l2_set_subdev_hostdata(sd, s_info);
 	sd->grp_id = SENSOR_GROUP_ID;
 
 	v4l2_info(&fmd->v4l2_dev, "Registered sensor subdevice %s\n",
-		  s_info->pdata->board_info->type);
+		  s_info->pdata.board_info->type);
 	return sd;
 }
 
@@ -316,7 +316,7 @@ static int fimc_md_register_sensor_entities(struct fimc_md *fmd)
 	for (i = 0; i < num_clients; i++) {
 		struct v4l2_subdev *sd;
 
-		fmd->sensor[i].pdata = &pdata->isp_info[i];
+		fmd->sensor[i].pdata = pdata->isp_info[i];
 		ret = __fimc_md_set_camclk(fmd, &fmd->sensor[i], true);
 		if (ret)
 			break;
@@ -641,11 +641,11 @@ static int fimc_md_create_links(struct fimc_md *fmd)
 
 		sensor = fmd->sensor[i].subdev;
 		s_info = v4l2_get_subdev_hostdata(sensor);
-		if (!s_info || !s_info->pdata)
+		if (!s_info)
 			continue;
 
 		source = NULL;
-		pdata = s_info->pdata;
+		pdata = &s_info->pdata;
 
 		switch (pdata->bus_type) {
 		case FIMC_MIPI_CSI2:
@@ -757,7 +757,7 @@ static int __fimc_md_set_camclk(struct fimc_md *fmd,
 				struct fimc_sensor_info *s_info,
 				bool on)
 {
-	struct s5p_fimc_isp_info *pdata = s_info->pdata;
+	struct s5p_fimc_isp_info *pdata = &s_info->pdata;
 	struct fimc_camclk_info *camclk;
 	int ret = 0;
 

drivers/media/platform/s5p-fimc/fimc-mdevice.h

@@ -51,7 +51,7 @@ struct fimc_camclk_info {
  * This data structure applies to image sensor and the writeback subdevs.
  */
 struct fimc_sensor_info {
-	struct s5p_fimc_isp_info *pdata;
+	struct s5p_fimc_isp_info pdata;
 	struct v4l2_subdev *subdev;
 	struct fimc_dev *host;
 };