linux-kernel - Re: [PATCH v9 2/4] drm/panel: simple: Add support for NEC NL4827HC19-05B 480x272 panel

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Message-ID: <20150714105328.GJ12465@ulmo.nvidia.com>
Date:	Tue, 14 Jul 2015 12:53:30 +0200
From:	Thierry Reding <thierry.reding@...il.com>
To:	Jianwei Wang <jianwei.wang@...escale.com>
Cc:	dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
	airlied@...ux.ie, daniel.vetter@...ll.ch, mark.yao@...k-chips.com,
	scottwood@...escale.com, Alison Wang <b18965@...escale.com>,
	Xiubo Li <lixiubo@...s.chinamobile.com>
Subject: Re: [PATCH v9 2/4] drm/panel: simple: Add support for NEC
 NL4827HC19-05B 480x272 panel

On Mon, Jul 13, 2015 at 06:51:30PM +0800, Jianwei Wang wrote:
> This adds support for the NEC NL4827HC19-05B 480x272 panel to the DRM
> simple panel driver.
> 
> Signed-off-by: Alison Wang <b18965@...escale.com>
> Signed-off-by: Xiubo Li <lixiubo@...s.chinamobile.com>
> Signed-off-by: Jianwei Wang <jianwei.wang@...escale.com>
> Acked-by: Daniel Vetter <daniel.vetter@...ll.ch>
> ---
>  .../bindings/panel/nec,nl4827hc19_05b.txt          |  7 ++++++
>  .../devicetree/bindings/vendor-prefixes.txt        |  1 +
>  MAINTAINERS                                        |  1 -
>  drivers/gpu/drm/panel/panel-simple.c               | 26 ++++++++++++++++++++++
>  4 files changed, 34 insertions(+), 1 deletion(-)
>  create mode 100644 Documentation/devicetree/bindings/panel/nec,nl4827hc19_05b.txt
> 
> diff --git a/Documentation/devicetree/bindings/panel/nec,nl4827hc19_05b.txt b/Documentation/devicetree/bindings/panel/nec,nl4827hc19_05b.txt
> new file mode 100644
> index 0000000..20e9473
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/panel/nec,nl4827hc19_05b.txt
> @@ -0,0 +1,7 @@
> +NEC LCD Technologies,Ltd. WQVGA TFT LCD panel
> +
> +Required properties:
> +- compatible: should be "nec,nl4827hc19_05b"
> +
> +This binding is compatible with the simple-panel binding, which is specified
> +in simple-panel.txt in this directory.
> diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt
> index 8033919..9f22b3e 100644
> --- a/Documentation/devicetree/bindings/vendor-prefixes.txt
> +++ b/Documentation/devicetree/bindings/vendor-prefixes.txt
> @@ -131,6 +131,7 @@ mundoreader	Mundo Reader S.L.
>  murata	Murata Manufacturing Co., Ltd.
>  mxicy	Macronix International Co., Ltd.
>  national	National Semiconductor
> +nec	NEC LCD Technologies, Ltd.
>  neonode		Neonode Inc.
>  netgear	NETGEAR
>  netlogic	Broadcom Corporation (formerly NetLogic Microsystems)

This belongs in a separate patch.

> diff --git a/MAINTAINERS b/MAINTAINERS
> index fffb8c9..e191ded 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -3410,7 +3410,6 @@ M:	Alison Wang <alison.wang@...escale.com>
>  L:	dri-devel@...ts.freedesktop.org
>  S:	Supported
>  F:	drivers/gpu/drm/fsl-dcu/
> -F:      Documentation/devicetree/bindings/drm/fsl-dcu/

What's this doing here?

>  F:      Documentation/devicetree/bindings/panel/nec,nl4827hc19_05b.txt
>  
>  DRM DRIVERS FOR NVIDIA TEGRA
> diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
> index f94201b..eb12fe4 100644
> --- a/drivers/gpu/drm/panel/panel-simple.c
> +++ b/drivers/gpu/drm/panel/panel-simple.c
> @@ -1036,6 +1036,29 @@ static const struct panel_desc shelly_sca07010_bfn_lnn = {
>  	.bus_format = MEDIA_BUS_FMT_RGB666_1X18,
>  };
>  
> +static const struct drm_display_mode nec_nl4827hc19_05b_mode = {
> +	.clock = 10870,
> +	.hdisplay = 480,
> +	.hsync_start = 480 + 2,
> +	.hsync_end = 480 + 2 + 41,
> +	.htotal = 480 + 2 + 41 + 2,
> +	.vdisplay = 272,
> +	.vsync_start = 272 + 2,
> +	.vsync_end = 272 + 2 + 4,
> +	.vtotal = 272 + 2 + 4 + 2,
> +	.vrefresh = 74,
> +};
> +
> +static const struct panel_desc nec_nl4827hc19_05b = {
> +	.modes = &nec_nl4827hc19_05b_mode,
> +	.num_modes = 1,
> +	.size = {
> +		.width = 95,
> +		.height = 54,
> +	},
> +	.bus_format = MEDIA_BUS_FMT_RGB888_1X24
> +};
> +

Please keep these...

>  static const struct of_device_id platform_of_match[] = {
>  	{
>  		.compatible = "ampire,am800480r3tmqwa1h",
> @@ -1125,6 +1148,9 @@ static const struct of_device_id platform_of_match[] = {
>  		.compatible = "shelly,sca07010-bfn-lnn",
>  		.data = &shelly_sca07010_bfn_lnn,
>  	}, {
> +		.compatible = "nec,nl4827hc19_05b",
> +		.data = &nec_nl4827hc19_05b,
> +	}, {

and this sorted alphabetically.

Thierry

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