[media] V4l: sh_mobile_ceu_camera: fix cropping offset calculation

Use the correct scales to calculate cropping offsets.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

diff --git a/drivers/media/video/sh_mobile_ceu_camera.c b/drivers/media/video/sh_mobile_ceu_camera.c
index 325f50d..61f3701 100644 (file)
--- a/drivers/media/video/sh_mobile_ceu_camera.c
+++ b/drivers/media/video/sh_mobile_ceu_camera.c
@@ -1348,7 +1348,7 @@ static int sh_mobile_ceu_set_crop(struct soc_camera_device *icd,
        struct device *dev = icd->dev.parent;
        struct v4l2_mbus_framefmt mf;
        unsigned int scale_cam_h, scale_cam_v, scale_ceu_h, scale_ceu_v,
-               out_width, out_height, scale_h, scale_v;
+               out_width, out_height;
        int interm_width, interm_height;
        u32 capsr, cflcr;
        int ret;
@@ -1406,10 +1406,6 @@ static int sh_mobile_ceu_set_crop(struct soc_camera_device *icd,
        scale_ceu_h     = calc_scale(interm_width, &out_width);
        scale_ceu_v     = calc_scale(interm_height, &out_height);
 
-       /* Calculate camera scales */
-       scale_h         = calc_generic_scale(cam_rect->width, out_width);
-       scale_v         = calc_generic_scale(cam_rect->height, out_height);
-
        dev_geo(dev, "5: CEU scales %u:%u\n", scale_ceu_h, scale_ceu_v);
 
        /* Apply CEU scales. */
@@ -1421,8 +1417,8 @@ static int sh_mobile_ceu_set_crop(struct soc_camera_device *icd,
 
        icd->user_width  = out_width;
        icd->user_height = out_height;
-       cam->ceu_left    = scale_down(rect->left - cam_rect->left, scale_h) & ~1;
-       cam->ceu_top     = scale_down(rect->top - cam_rect->top, scale_v) & ~1;
+       cam->ceu_left    = scale_down(rect->left - cam_rect->left, scale_cam_h) & ~1;
+       cam->ceu_top     = scale_down(rect->top - cam_rect->top, scale_cam_v) & ~1;
 
        /* 6. Use CEU cropping to crop to the new window. */
        sh_mobile_ceu_set_rect(icd);
@@ -1433,7 +1429,7 @@ static int sh_mobile_ceu_set_crop(struct soc_camera_device *icd,
                icd->user_width, icd->user_height,
                cam->ceu_left, cam->ceu_top);
 
-       /* Restore capture */
+       /* Restore capture. The CE bit can be cleared by the hardware */
        if (pcdev->active)
                capsr |= 1;
        capture_restore(pcdev, capsr);