linux-kernel - Re: [PATCH v2 08/16] media: platform: rzg2l-cru: rzg2l-video: Use MIPI CSI-2 data types for ICnMC

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Message-ID: <20240927224352.GH12322@pendragon.ideasonboard.com>
Date: Sat, 28 Sep 2024 01:43:52 +0300
From: Laurent Pinchart <laurent.pinchart@...asonboard.com>
To: Prabhakar <prabhakar.csengg@...il.com>
Cc: Sakari Ailus <sakari.ailus@...ux.intel.com>,
	Mauro Carvalho Chehab <mchehab@...nel.org>,
	Hans Verkuil <hverkuil-cisco@...all.nl>,
	linux-media@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-renesas-soc@...r.kernel.org,
	Biju Das <biju.das.jz@...renesas.com>,
	Fabrizio Castro <fabrizio.castro.jz@...esas.com>,
	Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
Subject: Re: [PATCH v2 08/16] media: platform: rzg2l-cru: rzg2l-video: Use
 MIPI CSI-2 data types for ICnMC_INF definitions

Hi Prabhakar,

Thank you for the patch.

On Tue, Sep 10, 2024 at 06:53:49PM +0100, Prabhakar wrote:
> From: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
> 
> The INF field in the ICnMC register accepts data type codes as specified
> in the MIPI CSI-2 v2.1 specification. This patch introduces the
> `ICnMC_INF()` macro to use the MIPI CSI-2 data types, which are available
> in the `media/mipi-csi2.h` header.
> 
> Suggested-by: Laurent Pinchart <laurent.pinchart+renesas@...asonboard.com>
> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>

Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@...asonboard.com>

> ---
>  drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c | 8 ++++----
>  1 file changed, 4 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
> index 9ab7ef33c9da..de88c0fab961 100644
> --- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
> +++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
> @@ -15,6 +15,7 @@
>  #include <linux/delay.h>
>  #include <linux/pm_runtime.h>
>  
> +#include <media/mipi-csi2.h>
>  #include <media/v4l2-ioctl.h>
>  #include <media/videobuf2-dma-contig.h>
>  
> @@ -77,8 +78,7 @@
>  /* CRU Image Processing Main Control Register */
>  #define ICnMC				0x208
>  #define ICnMC_CSCTHR			BIT(5)
> -#define ICnMC_INF_YUV8_422		(0x1e << 16)
> -#define ICnMC_INF_USER			(0x30 << 16)
> +#define ICnMC_INF(x)			((x) << 16)
>  #define ICnMC_VCSEL(x)			((x) << 22)
>  #define ICnMC_INF_MASK			GENMASK(21, 16)
>  
> @@ -307,12 +307,12 @@ static void rzg2l_cru_csi2_setup(struct rzg2l_cru_dev *cru, bool *input_is_yuv,
>  
>  	switch (ip_sd_fmt->code) {
>  	case MEDIA_BUS_FMT_UYVY8_1X16:
> -		icnmc = ICnMC_INF_YUV8_422;
> +		icnmc = ICnMC_INF(MIPI_CSI2_DT_YUV422_8B);
>  		*input_is_yuv = true;
>  		break;
>  	default:
>  		*input_is_yuv = false;
> -		icnmc = ICnMC_INF_USER;
> +		icnmc = ICnMC_INF(MIPI_CSI2_DT_USER_DEFINED(0));
>  		break;
>  	}
>  

-- 
Regards,

Laurent Pinchart