linux-kernel - Re: [PATCH 2/2] ARM: bus: da8xx-mstpri: new driver

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Date:   Sun, 30 Oct 2016 23:30:16 -0500
From:   Rob Herring <robh@...nel.org>
To:     Bartosz Golaszewski <bgolaszewski@...libre.com>
Cc:     Kevin Hilman <khilman@...libre.com>,
        Michael Turquette <mturquette@...libre.com>,
        Sekhar Nori <nsekhar@...com>,
        Frank Rowand <frowand.list@...il.com>,
        Mark Rutland <mark.rutland@....com>,
        Peter Ujfalusi <peter.ujfalusi@...com>,
        Russell King <linux@...linux.org.uk>,
        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>
Subject: Re: [PATCH 2/2] ARM: bus: da8xx-mstpri: new driver

On Wed, Oct 26, 2016 at 07:35:55PM +0200, Bartosz Golaszewski wrote:
> Create the driver for the da8xx master peripheral priority
> configuration and implement support for writing to the three
> Master Priority registers on da850 SoCs.
> 
> Signed-off-by: Bartosz Golaszewski <bgolaszewski@...libre.com>
> ---
>  .../devicetree/bindings/bus/ti,da850-mstpri.txt    |  20 ++
>  drivers/bus/Kconfig                                |   9 +
>  drivers/bus/Makefile                               |   2 +
>  drivers/bus/da8xx-mstpri.c                         | 266 +++++++++++++++++++++
>  4 files changed, 297 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/bus/ti,da850-mstpri.txt
>  create mode 100644 drivers/bus/da8xx-mstpri.c
> 
> diff --git a/Documentation/devicetree/bindings/bus/ti,da850-mstpri.txt b/Documentation/devicetree/bindings/bus/ti,da850-mstpri.txt
> new file mode 100644
> index 0000000..225af09
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/bus/ti,da850-mstpri.txt
> @@ -0,0 +1,20 @@
> +* Device tree bindings for Texas Instruments da8xx master peripheral
> +  priority driver
> +
> +DA8XX SoCs feature a set of registers allowing to change the priority of all
> +peripherals classified as masters.
> +
> +Documentation:
> +OMAP-L138 (DA850) - http://www.ti.com/lit/ug/spruh82c/spruh82c.pdf
> +
> +Required properties:
> +
> +- compatible:		"ti,da850-mstpri", "syscon" - for da850 based boards

Drop syscon. Doesn't look like it is needed and the example doesn't 
match.

> +- reg:			offset and length of the mstpri registers
> +
> +Example for da850-lcdk is shown below.
> +
> +mstpri {
> +	compatible = "ti,da850-mstpri";
> +	reg = <0x14110 0x0c>;
> +};