[U-Boot] [PATCH v1 16/16] board: Add Qualcomm Dragonboard 410C support

[Mateusz Kulikowski]

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Hi,

On 11.01.2016 17:58, Simon Glass wrote:
> Hi,
> 
> On 6 January 2016 at 11:21, Mateusz Kulikowski
> <mateusz.kulikowski at gmail.com> wrote:
>> This commit add support for 96Boards Dragonboard410C.
[...]
>> +       usb_hub_reset_n_pm {
>> +               gpios = <&pmic_gpios 2 0>;
>> +       };
>> +
>> +       usb_sw_sel_pm {
>> +               gpios = <&pmic_gpios 3 0>;
>> +       };
>> +
>> +       key_vol_down {
>> +               gpios = <&pmic_pon 1 0>;
>> +       };
>> +
>> +       key_power {
>> +               gpios = <&pmic_pon 0 0>;
>> +       };
> 
> The above four nodes seems odd in that they don't have compatible
> strings. Is this how Linux does it? Also more normally the node name
> has hyphens rather than underscores.

In Linux nodes are childs of PMIC gpio periperhal (pmic_gpios in my case):
&pm8916_gpios {

	usb_hub_reset_pm: usb_hub_reset_pm {
		pinconf {
			pins = "gpio3";
			function = PMIC_GPIO_FUNC_NORMAL;
			output-low;
		};
	};

(https://github.com/torvalds/linux/blob/master/arch/arm64/boot/dts/qcom/apq8016-sbc-pmic-pins.dtsi)

I decided to move them away from PMIC, as they only use specific gpios.

To be honest they are just a references so I don't have to hardcode gpio names/numbers in 
board sources.

Is it ok if I keep it that way? Could you suggest better approach?

Regards,
Mateusz

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