linux-kernel - Re: [PATCH 1/3] media: rcar-vin: Add RCAR

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Message-ID: <20250331211328.GB1240431@ragnatech.se>
Date: Mon, 31 Mar 2025 23:13:28 +0200
From: Niklas Söderlund <niklas.soderlund@...natech.se>
To: Tomi Valkeinen <tomi.valkeinen+renesas@...asonboard.com>
Cc: Mauro Carvalho Chehab <mchehab@...nel.org>,
	Sakari Ailus <sakari.ailus@...ux.intel.com>,
	linux-media@...r.kernel.org, linux-renesas-soc@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
Subject: Re: [PATCH 1/3] media: rcar-vin: Add RCAR_GEN4 model value

Hi Tomi,

Thanks for your work.

On 2025-03-24 13:48:52 +0200, Tomi Valkeinen wrote:
> Currently Gen4 VINs are marked as RCAN_GEN3 models. Add a new enum
> value, RCAR_GEN4, and use it for Gen4 VINs. No functional changes in
> this patch.
> 
> Signed-off-by: Tomi Valkeinen <tomi.valkeinen+renesas@...asonboard.com>

Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@...natech.se>
Tested-by: Niklas Söderlund <niklas.soderlund+renesas@...natech.se>

> ---
>  drivers/media/platform/renesas/rcar-vin/rcar-core.c | 2 +-
>  drivers/media/platform/renesas/rcar-vin/rcar-dma.c  | 8 ++++----
>  drivers/media/platform/renesas/rcar-vin/rcar-vin.h  | 1 +
>  3 files changed, 6 insertions(+), 5 deletions(-)
> 
> diff --git a/drivers/media/platform/renesas/rcar-vin/rcar-core.c b/drivers/media/platform/renesas/rcar-vin/rcar-core.c
> index ddfb18e6e7a4..88989c5fe636 100644
> --- a/drivers/media/platform/renesas/rcar-vin/rcar-core.c
> +++ b/drivers/media/platform/renesas/rcar-vin/rcar-core.c
> @@ -1275,7 +1275,7 @@ static const struct rvin_info rcar_info_r8a77995 = {
>  };
>  
>  static const struct rvin_info rcar_info_gen4 = {
> -	.model = RCAR_GEN3,
> +	.model = RCAR_GEN4,
>  	.use_mc = true,
>  	.use_isp = true,
>  	.nv12 = true,
> diff --git a/drivers/media/platform/renesas/rcar-vin/rcar-dma.c b/drivers/media/platform/renesas/rcar-vin/rcar-dma.c
> index 8de871240440..972ae2cb3314 100644
> --- a/drivers/media/platform/renesas/rcar-vin/rcar-dma.c
> +++ b/drivers/media/platform/renesas/rcar-vin/rcar-dma.c
> @@ -803,7 +803,7 @@ static int rvin_setup(struct rvin_dev *vin)
>  	}
>  
>  	/* Make sure input interface and input format is valid. */
> -	if (vin->info->model == RCAR_GEN3) {
> +	if (vin->info->model == RCAR_GEN3 || vin->info->model == RCAR_GEN4) {
>  		switch (vnmc & VNMC_INF_MASK) {
>  		case VNMC_INF_YUV8_BT656:
>  		case VNMC_INF_YUV10_BT656:
> @@ -826,7 +826,7 @@ static int rvin_setup(struct rvin_dev *vin)
>  	}
>  
>  	/* Enable VSYNC Field Toggle mode after one VSYNC input */
> -	if (vin->info->model == RCAR_GEN3)
> +	if (vin->info->model == RCAR_GEN3 || vin->info->model == RCAR_GEN4)
>  		dmr2 = VNDMR2_FTEV;
>  	else
>  		dmr2 = VNDMR2_FTEV | VNDMR2_VLV(1);
> @@ -926,7 +926,7 @@ static int rvin_setup(struct rvin_dev *vin)
>  		if (input_is_yuv == output_is_yuv)
>  			vnmc |= VNMC_BPS;
>  
> -		if (vin->info->model == RCAR_GEN3) {
> +		if (vin->info->model == RCAR_GEN3 || vin->info->model == RCAR_GEN4) {
>  			/* Select between CSI-2 and parallel input */
>  			if (vin->is_csi)
>  				vnmc &= ~VNMC_DPINE;
> @@ -1351,7 +1351,7 @@ static int rvin_mc_validate_format(struct rvin_dev *vin, struct v4l2_subdev *sd,
>  
>  	if (rvin_scaler_needed(vin)) {
>  		/* Gen3 can't scale NV12 */
> -		if (vin->info->model == RCAR_GEN3 &&
> +		if ((vin->info->model == RCAR_GEN3 || vin->info->model == RCAR_GEN4) &&
>  		    vin->format.pixelformat == V4L2_PIX_FMT_NV12)
>  			return -EPIPE;
>  
> diff --git a/drivers/media/platform/renesas/rcar-vin/rcar-vin.h b/drivers/media/platform/renesas/rcar-vin/rcar-vin.h
> index f87d4bc9e53e..34bbd1343bf6 100644
> --- a/drivers/media/platform/renesas/rcar-vin/rcar-vin.h
> +++ b/drivers/media/platform/renesas/rcar-vin/rcar-vin.h
> @@ -39,6 +39,7 @@ enum model_id {
>  	RCAR_M1,
>  	RCAR_GEN2,
>  	RCAR_GEN3,
> +	RCAR_GEN4,
>  };
>  
>  enum rvin_csi_id {
> 
> -- 
> 2.43.0
> 

-- 
Kind Regards,
Niklas Söderlund