linux-kernel - Re: [PATCH v2 11/18] drm/sun4i: Add A83T support

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Message-ID: <2744508.m82qQEPny3@jernej-laptop>
Date:   Mon, 27 Nov 2017 17:01:49 +0100
From:   Jernej Škrabec <jernej.skrabec@...l.net>
To:     Maxime Ripard <maxime.ripard@...e-electrons.com>
Cc:     Daniel Vetter <daniel.vetter@...el.com>,
        David Airlie <airlied@...ux.ie>, Chen-Yu Tsai <wens@...e.org>,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        Mark Rutland <mark.rutland@....com>,
        Rob Herring <robh+dt@...nel.org>,
        linux-arm-kernel@...ts.infradead.org, linux-clk@...r.kernel.org,
        plaes@...es.org, icenowy@...c.io,
        Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>
Subject: Re: [PATCH v2 11/18] drm/sun4i: Add A83T support

Hi Maxime,

Dne ponedeljek, 27. november 2017 ob 16:41:35 CET je Maxime Ripard napisal(a):
> Add support for the A83T display pipeline.
> 
> Reviewed-by: Chen-Yu Tsai <wens@...e.org>
> Signed-off-by: Maxime Ripard <maxime.ripard@...e-electrons.com>
> ---
>  Documentation/devicetree/bindings/display/sunxi/sun4i-drm.txt | 3 +++
>  drivers/gpu/drm/sun4i/sun4i_drv.c                             | 2 ++
>  drivers/gpu/drm/sun4i/sun4i_tcon.c                            | 5 +++++
>  drivers/gpu/drm/sun4i/sun8i_mixer.c                           | 4 ++++
>  4 files changed, 14 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/display/sunxi/sun4i-drm.txt
> b/Documentation/devicetree/bindings/display/sunxi/sun4i-drm.txt index
> d4259a4f5171..d6b52e5c48c0 100644
> --- a/Documentation/devicetree/bindings/display/sunxi/sun4i-drm.txt
> +++ b/Documentation/devicetree/bindings/display/sunxi/sun4i-drm.txt
> @@ -93,6 +93,7 @@ Required properties:
>     * allwinner,sun6i-a31s-tcon
>     * allwinner,sun7i-a20-tcon
>     * allwinner,sun8i-a33-tcon
> +   * allwinner,sun8i-a83t-tcon-lcd
>     * allwinner,sun8i-v3s-tcon
>   - reg: base address and size of memory-mapped region
>   - interrupts: interrupt associated to this IP
> @@ -224,6 +225,7 @@ supported.
> 
>  Required properties:
>    - compatible: value must be one of:
> +    * allwinner,sun8i-a83t-de2-mixer

What will be the name of the second mixer, once support for HDMI is added? 
Should we start directly with 0 and 1 postfix ?

>      * allwinner,sun8i-v3s-de2-mixer
>    - reg: base address and size of the memory-mapped region.
>    - clocks: phandles to the clocks feeding the mixer
> @@ -253,6 +255,7 @@ Required properties:
>      * allwinner,sun6i-a31s-display-engine
>      * allwinner,sun7i-a20-display-engine
>      * allwinner,sun8i-a33-display-engine
> +    * allwinner,sun8i-a83t-display-engine
>      * allwinner,sun8i-v3s-display-engine
> 
>    - allwinner,pipelines: list of phandle to the display engine
> diff --git a/drivers/gpu/drm/sun4i/sun4i_drv.c
> b/drivers/gpu/drm/sun4i/sun4i_drv.c index 75c76cdd82bc..c418be2f22be 100644
> --- a/drivers/gpu/drm/sun4i/sun4i_drv.c
> +++ b/drivers/gpu/drm/sun4i/sun4i_drv.c
> @@ -193,6 +193,7 @@ static bool sun4i_drv_node_is_tcon(struct device_node
> *node) of_device_is_compatible(node, "allwinner,sun6i-a31s-tcon") ||
>  		of_device_is_compatible(node, "allwinner,sun7i-a20-tcon") ||
>  		of_device_is_compatible(node, "allwinner,sun8i-a33-tcon") ||
> +		of_device_is_compatible(node, "allwinner,sun8i-a83t-tcon-lcd") ||
>  		of_device_is_compatible(node, "allwinner,sun8i-v3s-tcon");
>  }
> 
> @@ -353,6 +354,7 @@ static const struct of_device_id sun4i_drv_of_table[] =
> { { .compatible = "allwinner,sun6i-a31s-display-engine" },
>  	{ .compatible = "allwinner,sun7i-a20-display-engine" },
>  	{ .compatible = "allwinner,sun8i-a33-display-engine" },
> +	{ .compatible = "allwinner,sun8i-a83t-display-engine" },
>  	{ .compatible = "allwinner,sun8i-v3s-display-engine" },
>  	{ }
>  };
> diff --git a/drivers/gpu/drm/sun4i/sun4i_tcon.c
> b/drivers/gpu/drm/sun4i/sun4i_tcon.c index 46ce6daa0b1a..871df75793a9
> 100644
> --- a/drivers/gpu/drm/sun4i/sun4i_tcon.c
> +++ b/drivers/gpu/drm/sun4i/sun4i_tcon.c
> @@ -1132,6 +1132,10 @@ static const struct sun4i_tcon_quirks
> sun8i_a33_quirks = { .has_lvds_pll		= true,
>  };
> 
> +static const struct sun4i_tcon_quirks sun8i_a83t_quirks = {
> +	/* nothing is supported */
> +};
> +
>  static const struct sun4i_tcon_quirks sun8i_v3s_quirks = {
>  	/* nothing is supported */
>  };
> @@ -1143,6 +1147,7 @@ static const struct of_device_id sun4i_tcon_of_table[]
> = { { .compatible = "allwinner,sun6i-a31s-tcon", .data = &sun6i_a31s_quirks
> }, { .compatible = "allwinner,sun7i-a20-tcon", .data = &sun7i_a20_quirks },
> { .compatible = "allwinner,sun8i-a33-tcon", .data = &sun8i_a33_quirks },
> +	{ .compatible = "allwinner,sun8i-a83t-tcon-lcd", .data =
> &sun8i_a83t_quirks }, { .compatible = "allwinner,sun8i-v3s-tcon", .data =
> &sun8i_v3s_quirks }, { }
>  };
> diff --git a/drivers/gpu/drm/sun4i/sun8i_mixer.c
> b/drivers/gpu/drm/sun4i/sun8i_mixer.c index 44d5e639ebb2..5a1376965270
> 100644
> --- a/drivers/gpu/drm/sun4i/sun8i_mixer.c
> +++ b/drivers/gpu/drm/sun4i/sun8i_mixer.c
> @@ -395,6 +395,10 @@ static const struct sun8i_mixer_cfg sun8i_v3s_mixer_cfg
> = {
> 
>  static const struct of_device_id sun8i_mixer_of_table[] = {
>  	{
> +		.compatible = "allwinner,sun8i-a83t-de2-mixer",
> +		.data = &sun8i_v3s_mixer_cfg,
> +	},
> +	{

Maybe you want to squash 12 patch since this works only by luck.

Best regards,
Jernej

>  		.compatible = "allwinner,sun8i-v3s-de2-mixer",
>  		.data = &sun8i_v3s_mixer_cfg,
>  	},
> --
> git-series 0.9.1