V4L/DVB: mx2_camera: remove emma limitation for RGB565

In the current source status the emma has no limitation for any PIXFMT
since the data is parsed raw and unprocessed into the memory.

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

1 files changed, 5 insertions, 10 deletions

diff --git a/drivers/media/video/mx2_camera.c b/drivers/media/video/mx2_camera.c
index 38d09474da13..3fba60036eb2 100644
--- a/drivers/media/video/mx2_camera.c
+++ b/drivers/media/video/mx2_camera.c
@@ -716,8 +716,11 @@ static void mx27_camera_emma_buf_init(struct soc_camera_device *icd,
         /*
          * We only use the EMMA engine to get rid of the broken
          * DMA Engine. No color space consversion at the moment.
-         * We adjust incoming and outgoing pixelformat to rgb16
-         * and adjust the bytesperline accordingly.
+         * We set the incomming and outgoing pixelformat to an
+         * 16 Bit wide format and adjust the bytesperline
+         * accordingly. With this configuration the inputdata
+         * will not be changed by the emma and could be any type
+         * of 16 Bit Pixelformat.
          */
         writel(PRP_CNTL_CH1EN |
                         PRP_CNTL_CSIEN |
@@ -903,10 +906,6 @@ static int mx2_camera_set_fmt(struct soc_camera_device *icd,
                 return -EINVAL;
         }
 
-        /* eMMA can only do RGB565 */
-        if (mx27_camera_emma(pcdev) && pix->pixelformat != V4L2_PIX_FMT_RGB565)
-                return -EINVAL;
-
         mf.width        = pix->width;
         mf.height       = pix->height;
         mf.field        = pix->field;
@@ -950,10 +949,6 @@ static int mx2_camera_try_fmt(struct soc_camera_device *icd,
 
         /* FIXME: implement MX27 limits */
 
-        /* eMMA can only do RGB565 */
-        if (mx27_camera_emma(pcdev) && pixfmt != V4L2_PIX_FMT_RGB565)
-                return -EINVAL;
-
         /* limit to MX25 hardware capabilities */
         if (cpu_is_mx25()) {
                 if (xlate->host_fmt->bits_per_sample <= 8)