Re: [PATCH] gpu: ipu-v3: Fix BT1120 interlaced CCIR codes

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Hi Marek,

On Sat, 2018-04-07 at 15:04 +0200, Marek Vasut wrote:
> The BT1120 interlaced CCIR codes are the same as BT656 ones
> and different than BT656 progressive CCIR codes, fix this.

thank you for the patch, and sorry for the delay.

> Signed-off-by: Marek Vasut <marex@xxxxxxx>
> Cc: Steve Longerbeam <steve_longerbeam@xxxxxxxxxx>
> Cc: Philipp Zabel <p.zabel@xxxxxxxxxxxxxx>
> ---
>  drivers/gpu/ipu-v3/ipu-csi.c | 8 ++++++--
>  1 file changed, 6 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/gpu/ipu-v3/ipu-csi.c b/drivers/gpu/ipu-v3/ipu-csi.c
> index caa05b0702e1..301a729581ce 100644
> --- a/drivers/gpu/ipu-v3/ipu-csi.c
> +++ b/drivers/gpu/ipu-v3/ipu-csi.c
> @@ -435,12 +435,16 @@ int ipu_csi_init_interface(struct ipu_csi *csi,
>  		break;
>  	case IPU_CSI_CLK_MODE_CCIR1120_PROGRESSIVE_DDR:
>  	case IPU_CSI_CLK_MODE_CCIR1120_PROGRESSIVE_SDR:
> -	case IPU_CSI_CLK_MODE_CCIR1120_INTERLACED_DDR:
> -	case IPU_CSI_CLK_MODE_CCIR1120_INTERLACED_SDR:
>  		ipu_csi_write(csi, 0x40030 | CSI_CCIR_ERR_DET_EN,
>  				   CSI_CCIR_CODE_1);
>  		ipu_csi_write(csi, 0xFF0000, CSI_CCIR_CODE_3);
>  		break;
> +	case IPU_CSI_CLK_MODE_CCIR1120_INTERLACED_DDR:
> +	case IPU_CSI_CLK_MODE_CCIR1120_INTERLACED_SDR:
> +		ipu_csi_write(csi, 0x40596 | CSI_CCIR_ERR_DET_EN, CSI_CCIR_CODE_1);
> +		ipu_csi_write(csi, 0xD07DF, CSI_CCIR_CODE_2);
> +		ipu_csi_write(csi, 0xFF0000, CSI_CCIR_CODE_3);

If these are the same as BT656 codes (so this case would be for PAL?),
could this just be moved up into the IPU_CSI_CLK_MODE_CCIR656_INTERLACED
case? Would the NTSC CCIR codes be the same as well?

regards
Philipp



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