staging: drm/imx: Add YVU420 support to i.MX IPUv3 base driver

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/imx-drm/ipu-v3/ipu-common.c b/drivers/staging/imx-drm/ipu-v3/ipu-common.c
index 41fe116..7f3a3ae 100644 (file)
--- a/drivers/staging/imx-drm/ipu-v3/ipu-common.c
+++ b/drivers/staging/imx-drm/ipu-v3/ipu-common.c
@@ -234,6 +234,11 @@ void ipu_cpmem_set_yuv_planar_full(struct ipu_ch_param __iomem *p,
                ipu_ch_param_write_field(p, IPU_FIELD_UBO, u_offset / 8);
                ipu_ch_param_write_field(p, IPU_FIELD_VBO, v_offset / 8);
                break;
+       case V4L2_PIX_FMT_YVU420:
+               ipu_ch_param_write_field(p, IPU_FIELD_SLUV, (stride / 2) - 1);
+               ipu_ch_param_write_field(p, IPU_FIELD_UBO, v_offset / 8);
+               ipu_ch_param_write_field(p, IPU_FIELD_VBO, u_offset / 8);
+               break;
        }
 }
 EXPORT_SYMBOL_GPL(ipu_cpmem_set_yuv_planar_full);
@@ -246,10 +251,11 @@ void ipu_cpmem_set_yuv_planar(struct ipu_ch_param __iomem *p, u32 pixel_format,
 
        switch (pixel_format) {
        case V4L2_PIX_FMT_YUV420:
+       case V4L2_PIX_FMT_YVU420:
                uv_stride = stride / 2;
                u_offset = stride * height;
                v_offset = u_offset + (uv_stride * height / 2);
-               ipu_cpmem_set_yuv_planar_full(p, V4L2_PIX_FMT_YUV420, stride,
+               ipu_cpmem_set_yuv_planar_full(p, pixel_format, stride,
                                u_offset, v_offset);
                break;
        }
@@ -307,6 +313,7 @@ int ipu_cpmem_set_fmt(struct ipu_ch_param __iomem *cpmem, u32 pixelformat)
 {
        switch (pixelformat) {
        case V4L2_PIX_FMT_YUV420:
+       case V4L2_PIX_FMT_YVU420:
                /* pix format */
                ipu_ch_param_write_field(cpmem, IPU_FIELD_PFS, 2);
                /* burst size */
@@ -369,6 +376,7 @@ int ipu_cpmem_set_image(struct ipu_ch_param __iomem *cpmem,
 
        switch (pix->pixelformat) {
        case V4L2_PIX_FMT_YUV420:
+       case V4L2_PIX_FMT_YVU420:
                y_offset = Y_OFFSET(pix, image->rect.left, image->rect.top);
                u_offset = U_OFFSET(pix, image->rect.left,
                                image->rect.top) - y_offset;
@@ -414,6 +422,7 @@ enum ipu_color_space ipu_pixelformat_to_colorspace(u32 pixelformat)
 {
        switch (pixelformat) {
        case V4L2_PIX_FMT_YUV420:
+       case V4L2_PIX_FMT_YVU420:
        case V4L2_PIX_FMT_UYVY:
        case V4L2_PIX_FMT_YUYV:
                return IPUV3_COLORSPACE_YUV;