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From: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
To: pabloyoyoista@postmarketos.org,
	Bjorn Andersson <andersson@kernel.org>,
	Konrad Dybcio <konradybcio@kernel.org>,
	Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	Conor Dooley <conor+dt@kernel.org>
Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	Richard Acayan <mailingradian@gmail.com>,
	~postmarketos/upstreaming@lists.sr.ht
Subject: Re: [PATCH v4 1/3] arm64: dts: qcom: sdm670: add default uart pinctrl nodes
Date: Tue, 16 Jun 2026 15:25:51 +0200	[thread overview]
Message-ID: <fe3135e1-8d47-4797-80f2-e929fe59948f@oss.qualcomm.com> (raw)
In-Reply-To: <20260601-pabloyoyoista-debug-uart-on-rdacayan-next-v4-1-c5d51dd96ca0@postmarketos.org>

On 6/1/26 6:55 PM, Pablo Correa Gómez via B4 Relay wrote:
> From: Pablo Correa Gómez <pabloyoyoista@postmarketos.org>
> 
> This is a pre-requisite to enable UART in sargo and bonito. Values for
> the pins have been taken from sdm845, and cross-checking dowstream,
> where available.
> 
> Signed-off-by: Pablo Correa Gómez <pabloyoyoista@postmarketos.org>
> ---

[...]

> +			qup_uart0_default: qup-uart0-default-state {
> +				qup_uart0_tx: tx-pins {
> +					pins = "gpio2";
> +					function = "qup0";
> +				};
> +
> +				qup_uart0_rx: rx-pins {
> +					pins = "gpio3";
> +					function = "qup0";
> +				};

Let's drop the unused labels and let's bring the default config
(bias-disable + drive-strength = <2>) to the SoC DT, like we have
in glymur.dtsi

Please also cross-check whether the pull-up you enable in your
phone's DT is actually necessary (and whether it's defined as such
in the vendor DT - FWIW it's not in the sdm670-pinctrl.dtsi common
one)

Konrad

  reply	other threads:[~2026-06-16 13:25 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-06-01 16:55 [PATCH v4 0/3] Add support and enable the debug UART in the Pixel 3a and Pixel 3a XL Pablo Correa Gómez via B4 Relay
2026-06-01 16:55 ` [PATCH v4 1/3] arm64: dts: qcom: sdm670: add default uart pinctrl nodes Pablo Correa Gómez via B4 Relay
2026-06-16 13:25   ` Konrad Dybcio [this message]
2026-06-01 16:55 ` [PATCH v4 2/3] arm64: dts: qcom: sdm670: add debug uart soc node Pablo Correa Gómez via B4 Relay
2026-06-01 16:55 ` [PATCH v4 3/3] arm64: dts: qcom: sdm670-google-common: enable debug uart Pablo Correa Gómez via B4 Relay

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