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From: Rob Herring <robh-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
To: "Uwe Kleine-König"
	<u.kleine-koenig-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
Cc: Tomi Valkeinen <tomi.valkeinen-l0cyMroinI0@public.gmane.org>,
	Jean-Christophe Plagniol-Villard
	<plagnioj-sclMFOaUSTBWk0Htik3J/w@public.gmane.org>,
	linux-fbdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	linux-omap-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	kernel-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org,
	devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: [PATCH v2 1/3] devicetree/bindings: add reset-gpios and vcc-supply for panel-dpi
Date: Tue, 29 Dec 2015 14:54:58 -0600	[thread overview]
Message-ID: <20151229205458.GA31241@rob-hp-laptop> (raw)
In-Reply-To: <1450610002-10531-2-git-send-email-u.kleine-koenig-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>

On Sun, Dec 20, 2015 at 12:13:20PM +0100, Uwe Kleine-König wrote:
> Some displays have a reset input and/or need a regulator to function
> properly. Allow to specify them for panel-dpi devices.
> 
> Signed-off-by: Uwe Kleine-König <u.kleine-koenig-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
> ---
>  Documentation/devicetree/bindings/display/panel/panel-dpi.txt | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/display/panel/panel-dpi.txt b/Documentation/devicetree/bindings/display/panel/panel-dpi.txt
> index 216c894d4f99..b52ac52757df 100644
> --- a/Documentation/devicetree/bindings/display/panel/panel-dpi.txt
> +++ b/Documentation/devicetree/bindings/display/panel/panel-dpi.txt
> @@ -7,6 +7,8 @@ Required properties:
>  Optional properties:
>  - label: a symbolic name for the panel
>  - enable-gpios: panel enable gpio
> +- reset-gpios: GPIO to control the RESET pin

The problem with this in a generic binding is what if the panel has 
ordering requirements like enable gpio has to be inactive when reset 
is deasserted?

> +- vcc-supply: phandle of regulator that will be used to enable power to the display

What if there are 2 supplies?

While there are limits to what can be described here, I'm okay with 
allowing these, so:

Acked-by: Rob Herring <robh-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>

Rob
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  parent reply	other threads:[~2015-12-29 20:54 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <1450610002-10531-1-git-send-email-u.kleine-koenig@pengutronix.de>
     [not found] ` <1450610002-10531-1-git-send-email-u.kleine-koenig-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
2015-12-20 11:13   ` [PATCH v2 1/3] devicetree/bindings: add reset-gpios and vcc-supply for panel-dpi Uwe Kleine-König
     [not found]     ` <1450610002-10531-2-git-send-email-u.kleine-koenig-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
2015-12-29 20:54       ` Rob Herring [this message]
2015-12-30 10:29         ` Geert Uytterhoeven
     [not found]           ` <CAMuHMdUJPUeyhtM3=S4dOgevpnyd0TgkJy7QchPewO4KOxsWvA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-12-30 14:44             ` Rob Herring
2016-02-16 13:06         ` Tomi Valkeinen

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