linux-kernel - Re: [PATCH 2/2] ARM: dts: da850: add a node for the LCD controller

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Date:   Sat, 15 Oct 2016 23:12:33 +0530
From:   Sekhar Nori <nsekhar@...com>
To:     Bartosz Golaszewski <bgolaszewski@...libre.com>,
        Kevin Hilman <khilman@...libre.com>,
        Michael Turquette <mturquette@...libre.com>,
        Rob Herring <robh+dt@...nel.org>,
        Frank Rowand <frowand.list@...il.com>,
        Mark Rutland <mark.rutland@....com>,
        Peter Ujfalusi <peter.ujfalusi@...com>,
        Russell King <linux@...linux.org.uk>,
        Karl Beldan <karl.beldan@...il.com>
CC:     LKML <linux-kernel@...r.kernel.org>,
        arm-soc <linux-arm-kernel@...ts.infradead.org>,
        linux-drm <dri-devel@...ts.freedesktop.org>,
        linux-devicetree <devicetree@...r.kernel.org>,
        Jyri Sarha <jsarha@...com>,
        Tomi Valkeinen <tomi.valkeinen@...com>,
        David Airlie <airlied@...ux.ie>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        Maxime Ripard <maxime.ripard@...e-electrons.com>,
        Karl Beldan <kbeldan@...libre.com>
Subject: Re: [PATCH 2/2] ARM: dts: da850: add a node for the LCD controller

On Wednesday 05 October 2016 06:35 PM, Bartosz Golaszewski wrote:
> From: Karl Beldan <kbeldan@...libre.com>
> 
> Add pins used by the LCD controller and a disabled LCDC node to be
> reused in device trees including da850.dtsi.
> 
> Signed-off-by: Karl Beldan <kbeldan@...libre.com>
> [Bartosz:
>   - added the commit description
>   - changed the dt node name to a generic one
>   - added a da850-specific compatible string
>   - removed the tilcdc,panel node
>   - moved the pins definitions to da850.dtsi as suggested by
>     Sekhar Nori (was in: da850-lcdk.dts)]
> Signed-off-by: Bartosz Golaszewski <bgolaszewski@...libre.com>
> ---
>  arch/arm/boot/dts/da850.dtsi | 29 +++++++++++++++++++++++++++++
>  1 file changed, 29 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/da850.dtsi b/arch/arm/boot/dts/da850.dtsi
> index f79e1b9..32908ae 100644
> --- a/arch/arm/boot/dts/da850.dtsi
> +++ b/arch/arm/boot/dts/da850.dtsi

> @@ -399,6 +420,14 @@
>  				<&edma0 0 1>;
>  			dma-names = "tx", "rx";
>  		};
> +
> +		display: display@...000 {
> +			compatible = "ti,am33xx-tilcdc", "ti,da850-tilcdc";

This should instead be:

compatible = "ti,da850-tilcdc", "ti,am33xx-tilcdc";

as the closest match should appear first in the list.

> +			reg = <0x213000 0x1000>;
> +			interrupt-parent = <&intc>

No need of specifying the interrupt-parent as it is assumed to be that
from the parent node (soc) if left unspecified.

I made these two fixes locally and pushed the two patches in this series
to v4.10/dt branch of my tree (for URL see MAINTAINERS). Can you take a
look and make sure I did not mess anything up?

Regards,
Sekhar