Re: [PATCH 07/16] gpu: ipu-v3: Add VDI input IDMAC channels

From	Philipp Zabel <p.zabel@pengutronix.de>
Newsgroups	linux.kernel
Subject	Re: [PATCH 07/16] gpu: ipu-v3: Add VDI input IDMAC channels
Date	2016-07-15 14:50 +0200
Message-ID	<rVaJ4-6Xs-19@gated-at.bofh.it> (permalink)
References	<rSqAF-51z-3@gated-at.bofh.it> <rSqAG-51z-25@gated-at.bofh.it>
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Am Donnerstag, den 07.07.2016, 16:03 -0700 schrieb Steve Longerbeam:
> Adds the VDIC field input IDMAC channels. These channels
> transfer fields F(n-1), F(n), and F(N+1) from memory to
> the VDIC (channels 8, 9, 10 respectively).
> 
> Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com>
> ---
>  include/video/imx-ipu-v3.h | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/include/video/imx-ipu-v3.h b/include/video/imx-ipu-v3.h
> index 586979e..2302fc5 100644
> --- a/include/video/imx-ipu-v3.h
> +++ b/include/video/imx-ipu-v3.h
> @@ -107,6 +107,9 @@ enum ipu_channel_irq {
>  #define IPUV3_CHANNEL_CSI2			 2
>  #define IPUV3_CHANNEL_CSI3			 3
>  #define IPUV3_CHANNEL_VDI_MEM_IC_VF		 5
> +#define IPUV3_CHANNEL_MEM_VDI_P			 8
> +#define IPUV3_CHANNEL_MEM_VDI			 9
> +#define IPUV3_CHANNEL_MEM_VDI_N			10

I would prefer the names to be just a bit more descriptive:

#define IPUV3_CHANNEL_MEM_VDI_PREV		 8
#define IPUV3_CHANNEL_MEM_VDI_CUR		 9
#define IPUV3_CHANNEL_MEM_VDI_NEXT		10

The reference manual states that the purposes of these channels are
"Previous field", "Current field", and "Next field" input to the VDIC,
respectively.

regards
Philipp

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Re: [PATCH 07/16] gpu: ipu-v3: Add VDI input IDMAC channels Philipp Zabel <p.zabel@pengutronix.de> - 2016-07-15 14:50 +0200
  Re: [PATCH 07/16] gpu: ipu-v3: Add VDI input IDMAC channels Steve Longerbeam <steve_longerbeam@mentor.com> - 2016-07-15 23:40 +0200

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