[media] s5p-fimc: Fix bytesperline value for V4L2_PIX_FMT_YUV420M format

Make sure bytesperline for Cb, Cr planes for V4L2_PIX_FMT_YUV420M
format is half of the Y plane value, rather than having same
bytesperline for all planes.
While at it, simplify the bytesperline parameter handling by
storing it when image format is set and returning those values
when getting the format, instead of recalculating bytesperline
from intermediate parameters.

Reported-by: Sebastian Dröge <sebastian.droege@collabora.co.uk>
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>

4 files changed, 24 insertions, 22 deletions

diff --git a/drivers/media/platform/s5p-fimc/fimc-capture.c b/drivers/media/platform/s5p-fimc/fimc-capture.c
index 18a70e4a0b0f..df6fc6c7eecd 100644
--- a/drivers/media/platform/s5p-fimc/fimc-capture.c
+++ b/drivers/media/platform/s5p-fimc/fimc-capture.c
@@ -950,9 +950,9 @@ static int fimc_cap_g_fmt_mplane(struct file *file, void *fh,
                                  struct v4l2_format *f)
 {
         struct fimc_dev *fimc = video_drvdata(file);
-        struct fimc_ctx *ctx = fimc->vid_cap.ctx;
 
-        return fimc_fill_format(&ctx->d_frame, f);
+        __fimc_get_format(&fimc->vid_cap.ctx->d_frame, f);
+        return 0;
 }
 
 static int fimc_cap_try_fmt_mplane(struct file *file, void *fh,
@@ -1074,8 +1074,10 @@ static int __fimc_capture_set_format(struct fimc_dev *fimc,
                         return ret;
         }
 
-        for (i = 0; i < ff->fmt->memplanes; i++)
+        for (i = 0; i < ff->fmt->memplanes; i++) {
+                ff->bytesperline[i] = pix->plane_fmt[i].bytesperline;
                 ff->payload[i] = pix->plane_fmt[i].sizeimage;
+        }
 
         set_frame_bounds(ff, pix->width, pix->height);
         /* Reset the composition rectangle if not yet configured */
diff --git a/drivers/media/platform/s5p-fimc/fimc-core.c b/drivers/media/platform/s5p-fimc/fimc-core.c
index 2e86f44edd23..92d477c91811 100644
--- a/drivers/media/platform/s5p-fimc/fimc-core.c
+++ b/drivers/media/platform/s5p-fimc/fimc-core.c
@@ -691,7 +691,7 @@ void fimc_alpha_ctrl_update(struct fimc_ctx *ctx)
         v4l2_ctrl_unlock(ctrl);
 }
 
-int fimc_fill_format(struct fimc_frame *frame, struct v4l2_format *f)
+void __fimc_get_format(struct fimc_frame *frame, struct v4l2_format *f)
 {
         struct v4l2_pix_format_mplane *pixm = &f->fmt.pix_mp;
         int i;
@@ -704,19 +704,9 @@ int fimc_fill_format(struct fimc_frame *frame, struct v4l2_format *f)
         pixm->num_planes = frame->fmt->memplanes;
 
         for (i = 0; i < pixm->num_planes; ++i) {
-                int bpl = frame->f_width;
-                if (frame->fmt->colplanes == 1) /* packed formats */
-                        bpl = (bpl * frame->fmt->depth[0]) / 8;
-                pixm->plane_fmt[i].bytesperline = bpl;
-
-                if (frame->fmt->flags & FMT_FLAGS_COMPRESSED) {
-                        pixm->plane_fmt[i].sizeimage = frame->payload[i];
-                        continue;
-                }
-                pixm->plane_fmt[i].sizeimage = (frame->o_width *
-                        frame->o_height * frame->fmt->depth[i]) / 8;
+                pixm->plane_fmt[i].bytesperline = frame->bytesperline[i];
+                pixm->plane_fmt[i].sizeimage = frame->payload[i];
         }
-        return 0;
 }
 
 void fimc_fill_frame(struct fimc_frame *frame, struct v4l2_format *f)
@@ -765,9 +755,16 @@ void fimc_adjust_mplane_format(struct fimc_fmt *fmt, u32 width, u32 height,
                 if (fmt->colplanes == 1 && /* Packed */
                     (bpl == 0 || ((bpl * 8) / fmt->depth[i]) < pix->width))
                         bpl = (pix->width * fmt->depth[0]) / 8;
-
-                if (i == 0) /* Same bytesperline for each plane. */
+                /*
+                 * Currently bytesperline for each plane is same, except
+                 * V4L2_PIX_FMT_YUV420M format. This calculation may need
+                 * to be changed when other multi-planar formats are added
+                 * to the fimc_formats[] array.
+                 */
+                if (i == 0)
                         bytesperline = bpl;
+                else if (i == 1 && fmt->memplanes == 3)
+                        bytesperline /= 2;
 
                 plane_fmt->bytesperline = bytesperline;
                 plane_fmt->sizeimage = max((pix->width * pix->height *
diff --git a/drivers/media/platform/s5p-fimc/fimc-core.h b/drivers/media/platform/s5p-fimc/fimc-core.h
index 424ff960f0d9..cf760c364099 100644
--- a/drivers/media/platform/s5p-fimc/fimc-core.h
+++ b/drivers/media/platform/s5p-fimc/fimc-core.h
@@ -265,6 +265,7 @@ struct fimc_vid_buffer {
  * @width:      image pixel width
  * @height:     image pixel weight
  * @payload:    image size in bytes (w x h x bpp)
+ * @bytesperline: bytesperline value for each plane
  * @paddr:      image frame buffer physical addresses
  * @dma_offset: DMA offset in bytes
  * @fmt:        fimc color format pointer
@@ -279,6 +280,7 @@ struct fimc_frame {
         u32     width;
         u32     height;
         unsigned int            payload[VIDEO_MAX_PLANES];
+        unsigned int            bytesperline[VIDEO_MAX_PLANES];
         struct fimc_addr        paddr;
         struct fimc_dma_offset  dma_offset;
         struct fimc_fmt         *fmt;
@@ -637,7 +639,7 @@ int fimc_ctrls_create(struct fimc_ctx *ctx);
 void fimc_ctrls_delete(struct fimc_ctx *ctx);
 void fimc_ctrls_activate(struct fimc_ctx *ctx, bool active);
 void fimc_alpha_ctrl_update(struct fimc_ctx *ctx);
-int fimc_fill_format(struct fimc_frame *frame, struct v4l2_format *f);
+void __fimc_get_format(struct fimc_frame *frame, struct v4l2_format *f);
 void fimc_adjust_mplane_format(struct fimc_fmt *fmt, u32 width, u32 height,
                                struct v4l2_pix_format_mplane *pix);
 struct fimc_fmt *fimc_find_format(const u32 *pixelformat, const u32 *mbus_code,
diff --git a/drivers/media/platform/s5p-fimc/fimc-m2m.c b/drivers/media/platform/s5p-fimc/fimc-m2m.c
index 1d57f3b87aa3..1eabd7e74849 100644
--- a/drivers/media/platform/s5p-fimc/fimc-m2m.c
+++ b/drivers/media/platform/s5p-fimc/fimc-m2m.c
@@ -294,7 +294,8 @@ static int fimc_m2m_g_fmt_mplane(struct file *file, void *fh,
         if (IS_ERR(frame))
                 return PTR_ERR(frame);
 
-        return fimc_fill_format(frame, f);
+        __fimc_get_format(frame, f);
+        return 0;
 }
 
 static int fimc_try_fmt_mplane(struct fimc_ctx *ctx, struct v4l2_format *f)
@@ -389,8 +390,8 @@ static int fimc_m2m_s_fmt_mplane(struct file *file, void *fh,
         fimc_alpha_ctrl_update(ctx);
 
         for (i = 0; i < frame->fmt->colplanes; i++) {
-                frame->payload[i] =
-                        (pix->width * pix->height * frame->fmt->depth[i]) / 8;
+                frame->bytesperline[i] = pix->plane_fmt[i].bytesperline;
+                frame->payload[i] = pix->plane_fmt[i].sizeimage;
         }
 
         fimc_fill_frame(frame, f);