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

From: Rob Herring
Date: Mon Oct 31 2016 - 00:32:00 EST


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@xxxxxxxxxxxx>
> ---
> .../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>;
> +};