linux-kernel - Re: [PATCH v3] arm64: dts: qcom: qcs6490-rb3gen2: enable Bluetooth

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Message-ID: <6a40b442-6c4e-4abb-aeba-54ff9e86dfde@kernel.org>
Date: Mon, 2 Dec 2024 10:36:06 +0100
From: Krzysztof Kozlowski <krzk@...nel.org>
To: Janaki Ramaiah Thota <quic_janathot@...cinc.com>,
 Bjorn Andersson <andersson@...nel.org>,
 Konrad Dybcio <konradybcio@...nel.org>, Rob Herring <robh@...nel.org>,
 Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>
Cc: quic_mohamull@...cinc.com, quic_hbandi@...cinc.com,
 linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
 linux-kernel@...r.kernel.org, quic_msavaliy@...cinc.com
Subject: Re: [PATCH v3] arm64: dts: qcom: qcs6490-rb3gen2: enable Bluetooth

On 02/12/2024 10:32, Janaki Ramaiah Thota wrote:
>>
>>> +	pinctrl-names = "default", "sleep";
>>> +	pinctrl-1 = <&qup_uart7_sleep_cts>, <&qup_uart7_sleep_rts>,
>>> +			<&qup_uart7_sleep_tx>, <&qup_uart7_sleep_rx>;
>>
>> This could be just one phandle to state node with multiple pins subnode.
>>
> 
> Since we have different configuration for 3 GPIOs, it’s not good to 
> combine all 4 GPIOs into one common sleep configuration. Each GPIO 
> configuration is having separate requirements based on the Bluetooth SOC.

I did not propose that. Please read bindings and other existing DTS sources.

> This is as per hardware recommendations.



Best regards,
Krzysztof