Re: [PATCH v2 07/10] drm/rcar-du: Add support for r8a779h0

[Laurent Pinchart <laurent.pinchart@ideasonboard.com>]

Hi Tomi,

Thank you for the patch.

On Thu, Dec 05, 2024 at 03:45:02PM +0200, Tomi Valkeinen wrote:
> From: Tomi Valkeinen <tomi.valkeinen+renesas@ideasonboard.com>
> 
> Add support for r8a779h0. It is very similar to r8a779g0, but has only
> one output.
> 
> Signed-off-by: Tomi Valkeinen <tomi.valkeinen+renesas@ideasonboard.com>
> Tested-by: Geert Uytterhoeven <geert+renesas@glider.be>

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

> ---
>  drivers/gpu/drm/renesas/rcar-du/rcar_du_drv.c   | 18 ++++++++++++++++++
>  drivers/gpu/drm/renesas/rcar-du/rcar_du_group.c |  4 +++-
>  2 files changed, 21 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/renesas/rcar-du/rcar_du_drv.c b/drivers/gpu/drm/renesas/rcar-du/rcar_du_drv.c
> index fb719d9aff10..7858e10839f2 100644
> --- a/drivers/gpu/drm/renesas/rcar-du/rcar_du_drv.c
> +++ b/drivers/gpu/drm/renesas/rcar-du/rcar_du_drv.c
> @@ -545,6 +545,23 @@ static const struct rcar_du_device_info rcar_du_r8a779g0_info = {
>  	.dsi_clk_mask =  BIT(1) | BIT(0),
>  };
>  
> +static const struct rcar_du_device_info rcar_du_r8a779h0_info = {
> +	.gen = 4,
> +	.features = RCAR_DU_FEATURE_CRTC_IRQ
> +		  | RCAR_DU_FEATURE_VSP1_SOURCE
> +		  | RCAR_DU_FEATURE_NO_BLENDING,
> +	.channels_mask = BIT(0),
> +	.routes = {
> +		/* R8A779H0 has one MIPI DSI output. */
> +		[RCAR_DU_OUTPUT_DSI0] = {
> +			.possible_crtcs = BIT(0),
> +			.port = 0,
> +		},
> +	},
> +	.num_rpf = 5,
> +	.dsi_clk_mask = BIT(0),
> +};
> +
>  static const struct of_device_id rcar_du_of_table[] = {
>  	{ .compatible = "renesas,du-r8a7742", .data = &rcar_du_r8a7790_info },
>  	{ .compatible = "renesas,du-r8a7743", .data = &rzg1_du_r8a7743_info },
> @@ -571,6 +588,7 @@ static const struct of_device_id rcar_du_of_table[] = {
>  	{ .compatible = "renesas,du-r8a77995", .data = &rcar_du_r8a7799x_info },
>  	{ .compatible = "renesas,du-r8a779a0", .data = &rcar_du_r8a779a0_info },
>  	{ .compatible = "renesas,du-r8a779g0", .data = &rcar_du_r8a779g0_info },
> +	{ .compatible = "renesas,du-r8a779h0", .data = &rcar_du_r8a779h0_info },
>  	{ }
>  };
>  
> diff --git a/drivers/gpu/drm/renesas/rcar-du/rcar_du_group.c b/drivers/gpu/drm/renesas/rcar-du/rcar_du_group.c
> index 0fbf6abbde6e..b9ae6cc43702 100644
> --- a/drivers/gpu/drm/renesas/rcar-du/rcar_du_group.c
> +++ b/drivers/gpu/drm/renesas/rcar-du/rcar_du_group.c
> @@ -107,10 +107,12 @@ static void rcar_du_group_setup_didsr(struct rcar_du_group *rgrp)
>  		 */
>  		rcrtc = rcdu->crtcs;
>  		num_crtcs = rcdu->num_crtcs;
> -	} else if (rcdu->info->gen >= 3 && rgrp->num_crtcs > 1) {
> +	} else if ((rcdu->info->gen == 3 && rgrp->num_crtcs > 1) ||
> +		   rcdu->info->gen == 4) {
>  		/*
>  		 * On Gen3 dot clocks are setup through per-group registers,
>  		 * only available when the group has two channels.
> +		 * On Gen4 the registers are there for single channel too.
>  		 */
>  		rcrtc = &rcdu->crtcs[rgrp->index * 2];
>  		num_crtcs = rgrp->num_crtcs;
> 

-- 
Regards,

Laurent Pinchart