[PATCH v3 6/9] ARM: mvebu: add pinctrl device in DT for Armada 370/XP SoCs
Stephen Warren
swarren at wwwdotorg.org
Wed Sep 12 08:23:19 EST 2012
On 09/10/2012 02:39 AM, Sebastian Hesselbarth wrote:
> From: Thomas Petazzoni <thomas.petazzoni at free-electrons.com>
>
> The Armada 370 and XP SoCs have configurable muxing for a certain
> number of their pins, controlled through a pinctrl driver.
Hmmm. I'd be tempted just to put the entire node definition there;
putting in a .dtsi file just to share the reg property doesn't seem
especially useful.
> The 'compatible' property is defined in the SoC-specific .dtsi files,
> since the compatible string identifies the number of pins and other
> SoC-specific properties.
> diff --git a/arch/arm/boot/dts/armada-370-xp.dtsi b/arch/arm/boot/dts/armada-370-xp.dtsi
> + pinctrl at d0018000 {
If this is the only pinctrl instance, you'd typically name the node just
"pinctrl", since the "@d0018000" isn't needed to get unique node names.
> + reg = <0xd0018000 0x38>;
> + #address-cells = <1>;
> + #size-cells = <1>;
> + ranges;
What is "ranges" for; this isn't a memory-mapped bus, right?
> + };
> };
> };
More information about the devicetree-discuss
mailing list