linux-kernel - Re: [PATCH v2 2/6] drm/panel: simple: Add support for LG LP097QX1-SPA1 2048x1536 panel

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Date:	Wed, 8 Jun 2016 13:20:22 +0100
From:	Emil Velikov <emil.l.velikov@...il.com>
To:	Yakir Yang <ykk@...k-chips.com>
Cc:	David Airlie <airlied@...ux.ie>,
	Thierry Reding <thierry.reding@...il.com>,
	Rob Herring <robh+dt@...nel.org>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Kumar Gala <galak@...eaurora.org>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	devicetree <devicetree@...r.kernel.org>,
	"Linux-Kernel@...r. Kernel. Org" <linux-kernel@...r.kernel.org>,
	ML dri-devel <dri-devel@...ts.freedesktop.org>
Subject: Re: [PATCH v2 2/6] drm/panel: simple: Add support for LG
 LP097QX1-SPA1 2048x1536 panel

Hi Yakir,

On 8 June 2016 at 12:52, Yakir Yang <ykk@...k-chips.com> wrote:
> The LG LP097QX1-SPA1 is an 9.7", 2048x1536 (QXGA) TFT-LCD panel
> connected using eDP interfaces.
>
> Signed-off-by: Yakir Yang <ykk@...k-chips.com>
> ---
> Changes in v2: None
>
>  drivers/gpu/drm/panel/panel-simple.c | 25 +++++++++++++++++++++++++
>  1 file changed, 25 insertions(+)
>
> diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
> index 3a7bdf1..41020e1 100644
> --- a/drivers/gpu/drm/panel/panel-simple.c
> +++ b/drivers/gpu/drm/panel/panel-simple.c
> @@ -1040,6 +1040,28 @@ static const struct panel_desc lg_lp120up1 = {
>         },
>  };
>
> +static const struct drm_display_mode lg_lp097qx1_spa1_mode = {
I believe that lg_lp097qx1_spa1 should be moved/sorted before lg_lp120up1.

> +static const struct panel_desc lg_lp097qx1_spa1 = {
> +       .modes = &lg_lp097qx1_spa1_mode,
> +       .num_modes = 1,
> +       .size = {
> +               .width = 2048,
> +               .height = 1536,
These are the physical dimensions of the panel. From the documentation
(at the top of the file)

@width: width (in millimeters) of the panel's active display area
...

Thierry, perhaps it's worth renaming 'size' it to
"physical_{size,dimensions}" and/or alike to make it clearer ?
Looks like we have a few cases were people got confused -
innolux_zj070na_01p and samsung_ltn101nt05.

Regards,
Emil