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Message-ID: <6866a4d4-3ef1-4e87-a69e-bb9efce1a071@kernel.org>
Date: Thu, 7 Nov 2024 12:57:29 +0100
From: Krzysztof Kozlowski <krzk@...nel.org>
To: Andrea della Porta <andrea.porta@...e.com>
Cc: Michael Turquette <mturquette@...libre.com>,
Stephen Boyd <sboyd@...nel.org>, Rob Herring <robh@...nel.org>,
Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley
<conor+dt@...nel.org>, Florian Fainelli <florian.fainelli@...adcom.com>,
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Subject: Re: [PATCH v3 02/12] dt-bindings: pinctrl: Add RaspberryPi RP1
gpio/pinctrl/pinmux bindings
On 04/11/2024 12:11, Andrea della Porta wrote:
>>>>
>>>> Your example does not use any subnodes, so this looks not needed.
>>>
>>> The example has subnodes, as in the following excerpt from the example:
>>
>> I meant, you do not need properties in subnodes (1st level). You only
>> want properties in subnodes of subnodes, so 2nd level. What is the point
>> of allowing them in 1st level?
>
> I will add those two sub-nodes to the example:
>
> rp1-i2s0-default-state {
> function = "i2s0";
> pins = "gpio18", "gpio19", "gpio20", "gpio21";
> bias-disable;
> };
>
> rp1-uart0-default-state {
> txd-pins {
> function = "uart0";
> pins = "gpio14";
> bias-disable;
> };
>
> rxd-pins {
> function = "uart0";
> pins = "gpio15";
> bias-pull-up;
> };
> };
>
> The first is just a group of pins with the same settings, the second is
> a pin group with different settings per pin. This is basically the same
> usage as in qcom,sm4250-lpass-lpi-pinctrl.yaml.
>
Ack, that's ok then.
Best regards,
Krzysztof
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