On Sun, May 28, 2017 at 9:39 PM, Hauke Mehrtens <hauke@xxxxxxxxxx> wrote:
> From: Martin Blumenstingl <martin.blumenstingl@xxxxxxxxxxxxxx>
>
> Instead of hacking the configuration of the FPI bus into the arch code
> add an own bus driver for this internal bus. The FPI bus is the main
> bus of the SoC. This bus driver makes sure the bus is configured
> correctly before the child drivers are getting initialized. This driver
> will probably also be used on different SoC later.
> +Optional properties:
> +- regmap : A phandle to the RCU syscon
> +- offset-endianness : Offset of the endianness configuration register
Shouldn't be one of
big-endian;
little-endian;
native-endian;
?
For what purpose that register is used?
Is it configurable in RTL? IOW why you need to have it in DT?
> + offset-endianness = <0x4c>;
> + big-endian;
> + /* RCU configuration is optional */
> + rcu_regmap = syscon_regmap_lookup_by_phandle(np, "regmap");
> + if (!IS_ERR_OR_NULL(rcu_regmap)) {
_OR_NULL is suspicious. You are doing something wrong.
--
With Best Regards,
Andy Shevchenko
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