LKML Archive on lore.kernel.org
help / color / mirror / Atom feed
From: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
To: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Cc: linux-renesas-soc@vger.kernel.org,
	David Airlie <airlied@linux.ie>,
	"open list:DRM DRIVERS FOR RENESAS"
	<dri-devel@lists.freedesktop.org>,
	open list <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 07/17] drm: rcar-du: Add R8A77965 support
Date: Thu, 26 Apr 2018 23:43:25 +0300	[thread overview]
Message-ID: <1954980.A0ABKULED7@avalon> (raw)
In-Reply-To: <20180426165346.494-8-kieran.bingham+renesas@ideasonboard.com>

Hi Kieran,

Thank you for the patch.

On Thursday, 26 April 2018 19:53:36 EEST Kieran Bingham wrote:
> The R8A77965 (M3-N) SoC provides VGA, HDMI and LVDS output.
> 
> This platform is unusual in that the VGA is connected to DU3 leaving DU2
> unpopulated. This is reflected by the channel_mask accordingly.

I'd write s/VGA/DPAD/g (or s/VGA/RGB/g) as the DPAD output can be used for 
other purposes than VGA.

> Signed-off-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
> ---
>  drivers/gpu/drm/rcar-du/rcar_du_drv.c | 29 +++++++++++++++++++++++++++
>  1 file changed, 29 insertions(+)
> 
> diff --git a/drivers/gpu/drm/rcar-du/rcar_du_drv.c
> b/drivers/gpu/drm/rcar-du/rcar_du_drv.c index d6ebc628fc22..4d195ff8c569
> 100644
> --- a/drivers/gpu/drm/rcar-du/rcar_du_drv.c
> +++ b/drivers/gpu/drm/rcar-du/rcar_du_drv.c
> @@ -246,6 +246,34 @@ static const struct rcar_du_device_info
> rcar_du_r8a7796_info = { .dpll_ch =  BIT(1),
>  };
> 
> +static const struct rcar_du_device_info rcar_du_r8a77965_info = {
> +	.gen = 3,
> +	.features = RCAR_DU_FEATURE_CRTC_IRQ_CLOCK
> +		  | RCAR_DU_FEATURE_EXT_CTRL_REGS
> +		  | RCAR_DU_FEATURE_VSP1_SOURCE,
> +	.channel_mask = BIT(0) | BIT(1) | BIT(3),

Depending on what you think of my suggestions for patch 05/17, you might want 
to reverse the bit order here.

> +	.routes = {
> +		/*
> +		 * R8A77965 has one RGB output, one LVDS output and one HDMI
> +		 * output.
> +		 */
> +		[RCAR_DU_OUTPUT_DPAD0] = {
> +			.possible_crtcs = BIT(2),
> +			.port = 0,
> +		},
> +		[RCAR_DU_OUTPUT_HDMI0] = {
> +			.possible_crtcs = BIT(1),
> +			.port = 1,
> +		},
> +		[RCAR_DU_OUTPUT_LVDS0] = {
> +			.possible_crtcs = BIT(0),

I wonder whether it wouldn't be easier to read if we replaced possible_crtcs 
with possible_channels, as this structure describes the hardware and had its 
num_crtcs field replaced with a channel_mask. This would require converting 
the possible_channels field to a possible_crtcs field in 
rcar_du_modeset_init(), and I think that no change would be needed in 
rcar_du_group_setup_defr8() (but please double check). On the other hand, no 
code would be simplified, and rcar_du_modeset_init() would gain some 
additional complexity, so it might not be worth it.

Either way this patch looks good to me.

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

> +			.port = 2,
> +		},
> +	},
> +	.num_lvds = 1,
> +	.dpll_ch =  BIT(1),
> +};
> +
>  static const struct rcar_du_device_info rcar_du_r8a77970_info = {
>  	.gen = 3,
>  	.features = RCAR_DU_FEATURE_CRTC_IRQ_CLOCK
> @@ -277,6 +305,7 @@ static const struct of_device_id rcar_du_of_table[] = {
>  	{ .compatible = "renesas,du-r8a7794", .data = &rcar_du_r8a7794_info },
>  	{ .compatible = "renesas,du-r8a7795", .data = &rcar_du_r8a7795_info },
>  	{ .compatible = "renesas,du-r8a7796", .data = &rcar_du_r8a7796_info },
> +	{ .compatible = "renesas,du-r8a77965", .data = &rcar_du_r8a77965_info },
>  	{ .compatible = "renesas,du-r8a77970", .data = &rcar_du_r8a77970_info },
>  	{ }
>  };

-- 
Regards,

Laurent Pinchart

  reply	other threads:[~2018-04-26 20:43 UTC|newest]

Thread overview: 43+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20180426165346.494-1-kieran.bingham+renesas@ideasonboard.com>
2018-04-26 16:53 ` [PATCH 01/17] dt-bindings: display: renesas: du: Increase indent in output table Kieran Bingham
2018-04-26 20:08   ` Laurent Pinchart
2018-04-26 16:53 ` [PATCH 02/17] dt-bindings: display: renesas: du: Document the R8A77965 bindings Kieran Bingham
2018-04-26 16:57   ` Kieran Bingham
2018-04-26 20:10     ` Laurent Pinchart
2018-04-27  8:40       ` Kieran Bingham
2018-04-26 16:53 ` [PATCH 03/17] pinctrl: sh-pfc: r8a77965: Add DU RGB output pins, groups and functions Kieran Bingham
2018-04-26 20:16   ` Laurent Pinchart
2018-04-26 16:53 ` [PATCH 04/17] drm: rcar-du: Use the correct naming for ODPM fields in DEFR6 Kieran Bingham
2018-04-26 20:18   ` Laurent Pinchart
2018-04-26 16:53 ` [PATCH 05/17] drm: rcar-du: Split CRTC handling to support hardware indexing Kieran Bingham
2018-04-26 20:30   ` Laurent Pinchart
2018-04-27 10:15     ` Kieran Bingham
2018-04-26 16:53 ` [PATCH 06/17] drm: rcar-du: Allow DU groups to work with " Kieran Bingham
2018-04-26 20:36   ` Laurent Pinchart
2018-04-27 10:10     ` Kieran Bingham
2018-04-26 16:53 ` [PATCH 07/17] drm: rcar-du: Add R8A77965 support Kieran Bingham
2018-04-26 20:43   ` Laurent Pinchart [this message]
2018-04-27 10:14     ` Kieran Bingham
2018-04-26 16:53 ` [PATCH 08/17] arm64: dts: r8a77965: Provide sysc header definitions Kieran Bingham
2018-04-26 20:53   ` Laurent Pinchart
2018-04-26 16:53 ` [PATCH 09/17] arm64: dts: r8a77965: Use the correct CPG header Kieran Bingham
2018-04-26 21:16   ` Laurent Pinchart
2018-04-26 16:53 ` [PATCH 10/17] arm64: dts: r8a77965: Add FCPF and FCPV instances Kieran Bingham
2018-04-26 21:06   ` Laurent Pinchart
2018-04-26 16:53 ` [PATCH 11/17] arm64: dts: r8a77965: Add VSP instances Kieran Bingham
2018-04-26 21:11   ` Laurent Pinchart
2018-04-27 16:33     ` Kieran Bingham
2018-06-08  9:29     ` Geert Uytterhoeven
2018-06-08 11:00       ` Laurent Pinchart
2018-04-26 16:53 ` [PATCH 12/17] arm64: dts: r8a77965: Populate the DU instance placeholder Kieran Bingham
2018-04-26 21:15   ` Laurent Pinchart
2018-04-27 16:34     ` Kieran Bingham
2018-04-26 16:53 ` [PATCH 13/17] arm64: dts: r8a77965: Add HDMI encoder instance Kieran Bingham
2018-04-26 21:17   ` Laurent Pinchart
2018-04-26 16:53 ` [PATCH 14/17] arm64: dts: r8a77965-salvator-x: Add DU external dot clocks Kieran Bingham
2018-04-26 21:18   ` Laurent Pinchart
2018-04-26 16:53 ` [PATCH 15/17] arm64: dts: r8a77965-salvator-x: Enable HDMI output Kieran Bingham
2018-04-26 21:21   ` Laurent Pinchart
2018-04-27 16:22     ` Kieran Bingham
2018-04-26 16:53 ` [PATCH 16/17] arm64: dts: r8a77965-salvator-xs: Add DU external dot clocks Kieran Bingham
2018-04-26 21:22   ` Laurent Pinchart
2018-04-26 16:53 ` [PATCH 17/17] arm64: dts: r8a77965-salvator-xs: Enable HDMI output Kieran Bingham

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=1954980.A0ABKULED7@avalon \
    --to=laurent.pinchart@ideasonboard.com \
    --cc=airlied@linux.ie \
    --cc=dri-devel@lists.freedesktop.org \
    --cc=kieran.bingham+renesas@ideasonboard.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-renesas-soc@vger.kernel.org \
    --subject='Re: [PATCH 07/17] drm: rcar-du: Add R8A77965 support' \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).