V4L/DVB: v4l: s5p-fimc: Fix 3-planar formats handling and pixel offset error on S5PV210 SoCs

Fix DMA engine pixel offset calculation for 3-planar YUV formats.
On S5PV210 SoCs horizontal offset is applied as number of pixels,
not bytes per line.

[mchehab@redhat.com: CodingStyle cleanup]
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 37 insertions, 50 deletions

diff --git a/drivers/media/video/s5p-fimc/fimc-core.c b/drivers/media/video/s5p-fimc/fimc-core.c
index 8cd1ef073926..6961c55baf9b 100644
--- a/drivers/media/video/s5p-fimc/fimc-core.c
+++ b/drivers/media/video/s5p-fimc/fimc-core.c
@@ -393,6 +393,37 @@ static void fimc_set_yuv_order(struct fimc_ctx *ctx)
         dbg("ctx->out_order_1p= %d", ctx->out_order_1p);
 }
 
+static void fimc_prepare_dma_offset(struct fimc_ctx *ctx, struct fimc_frame *f)
+{
+        struct samsung_fimc_variant *variant = ctx->fimc_dev->variant;
+
+        f->dma_offset.y_h = f->offs_h;
+        if (!variant->pix_hoff)
+                f->dma_offset.y_h *= (f->fmt->depth >> 3);
+
+        f->dma_offset.y_v = f->offs_v;
+
+        f->dma_offset.cb_h = f->offs_h;
+        f->dma_offset.cb_v = f->offs_v;
+
+        f->dma_offset.cr_h = f->offs_h;
+        f->dma_offset.cr_v = f->offs_v;
+
+        if (!variant->pix_hoff) {
+                if (f->fmt->planes_cnt == 3) {
+                        f->dma_offset.cb_h >>= 1;
+                        f->dma_offset.cr_h >>= 1;
+                }
+                if (f->fmt->color == S5P_FIMC_YCBCR420) {
+                        f->dma_offset.cb_v >>= 1;
+                        f->dma_offset.cr_v >>= 1;
+                }
+        }
+
+        dbg("in_offset: color= %d, y_h= %d, y_v= %d",
+            f->fmt->color, f->dma_offset.y_h, f->dma_offset.y_v);
+}
+
 /**
  * fimc_prepare_config - check dimensions, operation and color mode
  *                       and pre-calculate offset and the scaling coefficients.
@@ -406,7 +437,6 @@ static int fimc_prepare_config(struct fimc_ctx *ctx, u32 flags)
 {
         struct fimc_frame *s_frame, *d_frame;
         struct fimc_vid_buffer *buf = NULL;
-        struct samsung_fimc_variant *variant = ctx->fimc_dev->variant;
         int ret = 0;
 
         s_frame = &ctx->s_frame;
@@ -419,61 +449,16 @@ static int fimc_prepare_config(struct fimc_ctx *ctx, u32 flags)
                         swap(d_frame->width, d_frame->height);
                 }
 
-                /* Prepare the output offset ratios for scaler. */
-                d_frame->dma_offset.y_h = d_frame->offs_h;
-                if (!variant->pix_hoff)
-                        d_frame->dma_offset.y_h *= (d_frame->fmt->depth >> 3);
-
-                d_frame->dma_offset.y_v = d_frame->offs_v;
+                /* Prepare the DMA offset ratios for scaler. */
+                fimc_prepare_dma_offset(ctx, &ctx->s_frame);
+                fimc_prepare_dma_offset(ctx, &ctx->d_frame);
 
-                d_frame->dma_offset.cb_h = d_frame->offs_h;
-                d_frame->dma_offset.cb_v = d_frame->offs_v;
-
-                d_frame->dma_offset.cr_h = d_frame->offs_h;
-                d_frame->dma_offset.cr_v = d_frame->offs_v;
-
-                if (!variant->pix_hoff && d_frame->fmt->planes_cnt == 3) {
-                        d_frame->dma_offset.cb_h >>= 1;
-                        d_frame->dma_offset.cb_v >>= 1;
-                        d_frame->dma_offset.cr_h >>= 1;
-                        d_frame->dma_offset.cr_v >>= 1;
-                }
-
-                dbg("out offset: color= %d, y_h= %d, y_v= %d",
-                        d_frame->fmt->color,
-                        d_frame->dma_offset.y_h, d_frame->dma_offset.y_v);
-
-                /* Prepare the input offset ratios for scaler. */
-                s_frame->dma_offset.y_h = s_frame->offs_h;
-                if (!variant->pix_hoff)
-                        s_frame->dma_offset.y_h *= (s_frame->fmt->depth >> 3);
-                s_frame->dma_offset.y_v = s_frame->offs_v;
-
-                s_frame->dma_offset.cb_h = s_frame->offs_h;
-                s_frame->dma_offset.cb_v = s_frame->offs_v;
-
-                s_frame->dma_offset.cr_h = s_frame->offs_h;
-                s_frame->dma_offset.cr_v = s_frame->offs_v;
-
-                if (!variant->pix_hoff && s_frame->fmt->planes_cnt == 3) {
-                        s_frame->dma_offset.cb_h >>= 1;
-                        s_frame->dma_offset.cb_v >>= 1;
-                        s_frame->dma_offset.cr_h >>= 1;
-                        s_frame->dma_offset.cr_v >>= 1;
-                }
-
-                dbg("in offset: color= %d, y_h= %d, y_v= %d",
-                        s_frame->fmt->color, s_frame->dma_offset.y_h,
-                        s_frame->dma_offset.y_v);
-
-                fimc_set_yuv_order(ctx);
-
-                /* Check against the scaler ratio. */
                 if (s_frame->height > (SCALER_MAX_VRATIO * d_frame->height) ||
                     s_frame->width > (SCALER_MAX_HRATIO * d_frame->width)) {
                         err("out of scaler range");
                         return -EINVAL;
                 }
+                fimc_set_yuv_order(ctx);
         }
 
         /* Input DMA mode is not allowed when the scaler is disabled. */
@@ -1495,6 +1480,7 @@ static struct samsung_fimc_variant fimc2_variant_s5p = {
 };
 
 static struct samsung_fimc_variant fimc01_variant_s5pv210 = {
+        .pix_hoff       = 1,
         .has_inp_rot    = 1,
         .has_out_rot    = 1,
         .min_inp_pixsize = 16,
@@ -1509,6 +1495,7 @@ static struct samsung_fimc_variant fimc01_variant_s5pv210 = {
 };
 
 static struct samsung_fimc_variant fimc2_variant_s5pv210 = {
+        .pix_hoff        = 1,
         .min_inp_pixsize = 16,
         .min_out_pixsize = 32,