media: platform: Move bcm2835-unicam compatible to downstream driver

The upstream Unicam driver needs a set of userland changes to get
libcamera to run, and those aren't written or merged yet.

Move the "brcm,bcm2835-unicam" compatible from the upstream driver
to the old downstream version so that users can run libcamera
against 6.10.
Once the libcamera changes have been merged this can be reverted
to use the upstream driver.

If using the non-legacy compatible then assume we want to use
media-controller API for configuration.

Signed-off-by: Dave Stevenson <[email protected]>

Author: 6by9

drivers/media/platform/bcm2835/bcm2835-unicam.c

@@ -3381,6 +3381,11 @@ static int unicam_probe(struct platform_device *pdev)
 	 * device tree requests it.
 	 */
 	unicam->mc_api = media_controller;
+
+	/* Compatible is for the non-legacy version of the driver - use compatible */
+	if (of_device_get_match_data(&unicam->pdev->dev))
+		unicam->mc_api = true;
+
 	if (of_property_read_bool(pdev->dev.of_node, "brcm,media-controller"))
 		unicam->mc_api = true;
 
@@ -3500,7 +3505,8 @@ static void unicam_remove(struct platform_device *pdev)
 }
 
 static const struct of_device_id unicam_of_match[] = {
-	{ .compatible = "brcm,bcm2835-unicam-legacy", },
+	{ .compatible = "brcm,bcm2835-unicam", .data = (void *)1 },
+	{ .compatible = "brcm,bcm2835-unicam-legacy", .data = 0 },
 	{ /* sentinel */ },
 };
 MODULE_DEVICE_TABLE(of, unicam_of_match);

drivers/media/platform/broadcom/bcm2835-unicam/bcm2835-unicam.c

@@ -2735,7 +2735,6 @@ static void unicam_remove(struct platform_device *pdev)
 }
 
 static const struct of_device_id unicam_of_match[] = {
-	{ .compatible = "brcm,bcm2835-unicam", },
 	{ .compatible = "brcm,bcm2835-unicam-upstream", },
 	{ /* sentinel */ },
 };