[PATCH] media: atomisp: Avoid picking too big sensor resolution

[Hans de Goede <hdegoede@redhat.com>]

atomisp_try_fmt() is limiting the width of the requested resolution to 1920
before calling the sensor's try_fmt() method. But it is not limiting
the height. In case of the old mode-list based t4ka3 driver which has
a mode list of:

736x496
896x736
1936x1096
3280x2464

This results in 3280x2464 being selected when try_fmt is called
with a requested resolution of 3280x2464, which is not supported because
its width > 1920 .

Fix this by also limiting the height when in preview mode.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
---
 drivers/staging/media/atomisp/pci/atomisp_cmd.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/media/atomisp/pci/atomisp_cmd.c b/drivers/staging/media/atomisp/pci/atomisp_cmd.c
index 02ccf80e6559..10462c5db36f 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_cmd.c
+++ b/drivers/staging/media/atomisp/pci/atomisp_cmd.c
@@ -3784,9 +3784,14 @@ int atomisp_try_fmt(struct atomisp_device *isp, struct v4l2_pix_format *f,
 			return -EINVAL;
 	}
 
-	/* The preview pipeline does not support width > 1920 */
-	if (asd->run_mode->val == ATOMISP_RUN_MODE_PREVIEW)
+	/*
+	 * The preview pipeline does not support width > 1920. Also limit height
+	 * to avoid sensor drivers still picking a too wide resolution.
+	 */
+	if (asd->run_mode->val == ATOMISP_RUN_MODE_PREVIEW) {
 		f->width = min_t(u32, f->width, 1920);
+		f->height = min_t(u32, f->height, 1440);
+	}
 
 	/*
 	 * atomisp_set_fmt() will set the sensor resolution to the requested
-- 
2.47.0