Hi Mauro, Javier

On Tue, 15 May 2012, Mauro Carvalho Chehab wrote:

> This is an automatic generated email to let you know that the following patch 
> were queued at the 
> http://git.linuxtv.org/media_tree.git tree:
> 
> Subject: [media] media: mx2_camera: Fix mbus format handling
> Author:  Javier Martin <javier.mar...@vista-silicon.com>
> Date:    Mon Mar 26 09:17:48 2012 -0300

Looks like I have missed this patch, unfortunately, it hasn't been cc'ed 
to me. It would have been better to merge it via my soc-camera tree, also 
because with this merge window there are a couple more changes, that 
affect the generic soc-camera API and the mx2-camera driver in particular. 
So far I don't see anything, what could break here, but if something does 
- we know who will have to fix it;-)

Thanks
Guennadi

> 
> Remove MX2_CAMERA_SWAP16 and MX2_CAMERA_PACK_DIR_MSB flags
> so that the driver can negotiate with the attached sensor
> whether the mbus format needs convertion from UYUV to YUYV
> or not.
> 
> Signed-off-by: Javier Martin <javier.mar...@vista-silicon.com>
> Signed-off-by: Mauro Carvalho Chehab <mche...@redhat.com>
> 
>  arch/arm/plat-mxc/include/mach/mx2_cam.h |    2 -
>  drivers/media/video/mx2_camera.c         |   52 
> +++++++++++++++++++++++++++---
>  2 files changed, 47 insertions(+), 7 deletions(-)
> 
> ---
> 
> http://git.linuxtv.org/media_tree.git?a=commitdiff;h=d509835e32bd761a2b7b446034a273da568e5573
> 
> diff --git a/arch/arm/plat-mxc/include/mach/mx2_cam.h 
> b/arch/arm/plat-mxc/include/mach/mx2_cam.h
> index 3c080a3..7ded6f1 100644
> --- a/arch/arm/plat-mxc/include/mach/mx2_cam.h
> +++ b/arch/arm/plat-mxc/include/mach/mx2_cam.h
> @@ -23,7 +23,6 @@
>  #ifndef __MACH_MX2_CAM_H_
>  #define __MACH_MX2_CAM_H_
>  
> -#define MX2_CAMERA_SWAP16            (1 << 0)
>  #define MX2_CAMERA_EXT_VSYNC         (1 << 1)
>  #define MX2_CAMERA_CCIR                      (1 << 2)
>  #define MX2_CAMERA_CCIR_INTERLACE    (1 << 3)
> @@ -31,7 +30,6 @@
>  #define MX2_CAMERA_GATED_CLOCK               (1 << 5)
>  #define MX2_CAMERA_INV_DATA          (1 << 6)
>  #define MX2_CAMERA_PCLK_SAMPLE_RISING        (1 << 7)
> -#define MX2_CAMERA_PACK_DIR_MSB              (1 << 8)
>  
>  /**
>   * struct mx2_camera_platform_data - optional platform data for mx2_camera
> diff --git a/drivers/media/video/mx2_camera.c 
> b/drivers/media/video/mx2_camera.c
> index 18afaee..7c3c0e8 100644
> --- a/drivers/media/video/mx2_camera.c
> +++ b/drivers/media/video/mx2_camera.c
> @@ -344,6 +344,19 @@ static struct mx2_fmt_cfg mx27_emma_prp_table[] = {
>                                       PRP_INTR_CH2OVF,
>               }
>       },
> +     {
> +             .in_fmt         = V4L2_MBUS_FMT_UYVY8_2X8,
> +             .out_fmt        = V4L2_PIX_FMT_YUV420,
> +             .cfg            = {
> +                     .channel        = 2,
> +                     .in_fmt         = PRP_CNTL_DATA_IN_YUV422,
> +                     .out_fmt        = PRP_CNTL_CH2_OUT_YUV420,
> +                     .src_pixel      = 0x22000888, /* YUV422 (YUYV) */
> +                     .irq_flags      = PRP_INTR_RDERR | PRP_INTR_CH2WERR |
> +                                     PRP_INTR_CH2FC | PRP_INTR_LBOVF |
> +                                     PRP_INTR_CH2OVF,
> +             }
> +     },
>  };
>  
>  static struct mx2_fmt_cfg *mx27_emma_prp_get_format(
> @@ -980,6 +993,7 @@ static int mx2_camera_set_bus_param(struct 
> soc_camera_device *icd)
>       struct soc_camera_host *ici = to_soc_camera_host(icd->parent);
>       struct mx2_camera_dev *pcdev = ici->priv;
>       struct v4l2_mbus_config cfg = {.type = V4L2_MBUS_PARALLEL,};
> +     const struct soc_camera_format_xlate *xlate;
>       unsigned long common_flags;
>       int ret;
>       int bytesperline;
> @@ -1024,14 +1038,31 @@ static int mx2_camera_set_bus_param(struct 
> soc_camera_device *icd)
>               return ret;
>       }
>  
> +     xlate = soc_camera_xlate_by_fourcc(icd, pixfmt);
> +     if (!xlate) {
> +             dev_warn(icd->parent, "Format %x not found\n", pixfmt);
> +             return -EINVAL;
> +     }
> +
> +     if (xlate->code == V4L2_MBUS_FMT_YUYV8_2X8) {
> +             csicr1 |= CSICR1_PACK_DIR;
> +             csicr1 &= ~CSICR1_SWAP16_EN;
> +             dev_dbg(icd->parent, "already yuyv format, don't convert\n");
> +     } else if (xlate->code == V4L2_MBUS_FMT_UYVY8_2X8) {
> +             csicr1 &= ~CSICR1_PACK_DIR;
> +             csicr1 |= CSICR1_SWAP16_EN;
> +             dev_dbg(icd->parent, "convert uyvy mbus format into yuyv\n");
> +     } else {
> +             dev_warn(icd->parent, "mbus format not supported\n");
> +             return -EINVAL;
> +     }
> +
>       if (common_flags & V4L2_MBUS_PCLK_SAMPLE_RISING)
>               csicr1 |= CSICR1_REDGE;
>       if (common_flags & V4L2_MBUS_VSYNC_ACTIVE_HIGH)
>               csicr1 |= CSICR1_SOF_POL;
>       if (common_flags & V4L2_MBUS_HSYNC_ACTIVE_HIGH)
>               csicr1 |= CSICR1_HSYNC_POL;
> -     if (pcdev->platform_flags & MX2_CAMERA_SWAP16)
> -             csicr1 |= CSICR1_SWAP16_EN;
>       if (pcdev->platform_flags & MX2_CAMERA_EXT_VSYNC)
>               csicr1 |= CSICR1_EXT_VSYNC;
>       if (pcdev->platform_flags & MX2_CAMERA_CCIR)
> @@ -1042,8 +1073,6 @@ static int mx2_camera_set_bus_param(struct 
> soc_camera_device *icd)
>               csicr1 |= CSICR1_GCLK_MODE;
>       if (pcdev->platform_flags & MX2_CAMERA_INV_DATA)
>               csicr1 |= CSICR1_INV_DATA;
> -     if (pcdev->platform_flags & MX2_CAMERA_PACK_DIR_MSB)
> -             csicr1 |= CSICR1_PACK_DIR;
>  
>       pcdev->csicr1 = csicr1;
>  
> @@ -1118,7 +1147,8 @@ static int mx2_camera_get_formats(struct 
> soc_camera_device *icd,
>               return 0;
>       }
>  
> -     if (code == V4L2_MBUS_FMT_YUYV8_2X8) {
> +     if (code == V4L2_MBUS_FMT_YUYV8_2X8 ||
> +         code == V4L2_MBUS_FMT_UYVY8_2X8) {
>               formats++;
>               if (xlate) {
>                       /*
> @@ -1134,6 +1164,18 @@ static int mx2_camera_get_formats(struct 
> soc_camera_device *icd,
>               }
>       }
>  
> +     if (code == V4L2_MBUS_FMT_UYVY8_2X8) {
> +             formats++;
> +             if (xlate) {
> +                     xlate->host_fmt =
> +                             soc_mbus_get_fmtdesc(V4L2_MBUS_FMT_YUYV8_2X8);
> +                     xlate->code     = code;
> +                     dev_dbg(dev, "Providing host format %s for sensor code 
> %d\n",
> +                             xlate->host_fmt->name, code);
> +                     xlate++;
> +             }
> +     }
> +
>       /* Generic pass-trough */
>       formats++;
>       if (xlate) {
> 
> _______________________________________________
> linuxtv-commits mailing list
> linuxtv-comm...@linuxtv.org
> http://www.linuxtv.org/cgi-bin/mailman/listinfo/linuxtv-commits
> 

---
Guennadi Liakhovetski, Ph.D.
Freelance Open-Source Software Developer
http://www.open-technology.de/
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