On Tue, 22 Sep 2015, Josh Wu wrote:
> The preview path only can convert UYVY format to RGB data.
>
> To make preview path work correctly, we need to set up YCC_SWAP
> according to sensor output and convert them to UYVY.
>
> Signed-off-by: Josh Wu <josh...@atmel.com>
> ---
>
> drivers/media/platform/soc_camera/atmel-isi.c | 16 ++++++++++++++++
> 1 file changed, 16 insertions(+)
>
> diff --git a/drivers/media/platform/soc_camera/atmel-isi.c
> b/drivers/media/platform/soc_camera/atmel-isi.c
> index bbf6449..e87d354 100644
> --- a/drivers/media/platform/soc_camera/atmel-isi.c
> +++ b/drivers/media/platform/soc_camera/atmel-isi.c
> @@ -127,6 +127,22 @@ static u32 setup_cfg2_yuv_swap(struct atmel_isi *isi,
> cfg2_yuv_swap = ISI_CFG2_YCC_SWAP_MODE_1;
> break;
> }
> + } else if (xlate->host_fmt->fourcc == V4L2_PIX_FMT_RGB565) {
> + /* Preview path is enabled, it will convert UYVY to RGB format.
> + * But if sensor output format is not UYVY, we need to set
> + * YCC_SWAP_MODE to convert it as UYVY.
> + */
Please, fix multiline comment style:
/*
* ...
* ...
*/
> + switch (xlate->code) {
> + case MEDIA_BUS_FMT_VYUY8_2X8:
> + cfg2_yuv_swap = ISI_CFG2_YCC_SWAP_MODE_1;
> + break;
> + case MEDIA_BUS_FMT_YUYV8_2X8:
> + cfg2_yuv_swap = ISI_CFG2_YCC_SWAP_MODE_2;
> + break;
> + case MEDIA_BUS_FMT_YVYU8_2X8:
> + cfg2_yuv_swap = ISI_CFG2_YCC_SWAP_MODE_3;
> + break;
> + }
> }
>
> return cfg2_yuv_swap;
> --
> 1.9.1
>
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