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Tue, 10 Nov 2026 04:12:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1794283932; bh=xM/qy0LDmGAX2gldlTS/zKbKhse2bwRxfBsg2sK9AYs=; h=Date:From:To:Cc:Subject:References:In-Reply-To; b=BhM521TZv3m4O2TAooWY912f0uaCJrfkgK4cXlg6AbKE3eLmvdFpbmynhiXL1QqKy A1AIDCJkZE8gE8ngKX6CENCqjUENkyKHfO5mwy9J7tibQcMhO5ateddHrvkweujjkS OB7nb3YnYQ0B3Kh+EFTva8bTLmap+S9WBIwxPIqPLU+EzmWNUz9QiPjTNdfUhDk120 jVHajcTu8rJIB3EZ9PSSVps1uaIa8ennFiwdPC+DwO5nnHMYUHf9k3KlkTfUcZBcFp RoeHCHzB+Be4JDekknEwOBZ62IN6unukUNYk7Z5yQcy5nS372JN2QSe1XIMOSpfNAw J+QzQVz+6Ve5A== Date: Mon, 9 Nov 2026 22:12:07 -0600 From: Bjorn Andersson To: david@ixit.cz Cc: Dmitry Torokhov , Maxime Coquelin , Alexandre Torgue , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Henrik Rydberg , Konrad Dybcio , Petr Hodina , linux-input@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Krzysztof Kozlowski , devicetree@vger.kernel.org, linux-arm-msm@vger.kernel.org, phone-devel@vger.kernel.org, Konrad Dybcio , Dmitry Baryshkov , Abel Vesa Subject: Re: [PATCH v8 5/5] arm64: dts: qcom: sdm845-google: Add STM FTS touchscreen support Message-ID: References: <20260925-stmfts5-v8-0-0fcf49e2c85f@ixit.cz> <20260925-stmfts5-v8-5-0fcf49e2c85f@ixit.cz> X-Archived-By: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260925-stmfts5-v8-5-0fcf49e2c85f@ixit.cz> X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" X-Spam-Status: No, score=-20.9 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=4.0.1 X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-26) on aws-us-west-2-korg-listserv-alma10-1 On Fri, Sep 25, 2026 at 11:22:23PM +0200, David Heidelberg via B4 Relay wrote: > From: Petr Hodina > > Basic touchscreen connected to second i2c bus. > > Signed-off-by: Petr Hodina > Reviewed-by: Konrad Dybcio > Reviewed-by: Dmitry Baryshkov > Reviewed-by: Abel Vesa > Co-developed-by: David Heidelberg > Signed-off-by: David Heidelberg > --- > arch/arm64/boot/dts/qcom/sdm845-google-blueline.dts | 19 ++++++++++++++++++- > arch/arm64/boot/dts/qcom/sdm845-google-common.dtsi | 2 +- > 2 files changed, 19 insertions(+), 2 deletions(-) > > diff --git a/arch/arm64/boot/dts/qcom/sdm845-google-blueline.dts b/arch/arm64/boot/dts/qcom/sdm845-google-blueline.dts > index fa89be500fb85..51c835dca43f1 100644 > --- a/arch/arm64/boot/dts/qcom/sdm845-google-blueline.dts > +++ b/arch/arm64/boot/dts/qcom/sdm845-google-blueline.dts > @@ -21,17 +21,34 @@ &framebuffer0 { > stride = <(1080 * 4)>; > }; > > &i2c2 { > clock-frequency = <1000000>; > > status = "okay"; > > - /* ST,FTS @ 49 */ > + touchscreen@49 { > + compatible = "st,stmfts5"; > + reg = <0x49>; > + > + pinctrl-0 = <&touchscreen_irq_n>, <&touchscreen_reset>; > + pinctrl-names = "default"; > + > + interrupts-extended = <&tlmm 125 IRQ_TYPE_LEVEL_LOW>; > + > + mode-switch-gpios = <&tlmm 136 GPIO_ACTIVE_HIGH>; It's not clear to me how this worked or when it started failing, but due to a conflict with the reboot-mode binding dt-validate crashes when we reach this property. I opened a PR to handle it here: https://github.com/devicetree-org/dt-schema/pull/212 Regards, Bjorn > + reset-gpios = <&tlmm 99 GPIO_ACTIVE_LOW>; > + > + avdd-supply = <&vreg_l19a_3p3>; > + vdd-supply = <&vreg_l14a_1p8>; > + > + touchscreen-size-x = <1080>; > + touchscreen-size-y = <2160>; > + }; > }; > > &mdss_dsi0 { > vdda-supply = <&vdda_mipi_dsi0_1p2>; > > status = "okay"; > > panel@0 { > diff --git a/arch/arm64/boot/dts/qcom/sdm845-google-common.dtsi b/arch/arm64/boot/dts/qcom/sdm845-google-common.dtsi > index f1379857e2742..6ae1973aa8ac7 100644 > --- a/arch/arm64/boot/dts/qcom/sdm845-google-common.dtsi > +++ b/arch/arm64/boot/dts/qcom/sdm845-google-common.dtsi > @@ -504,17 +504,17 @@ firmware-pins { > > touchscreen_reset: ts-reset-state { > pins = "gpio99"; > function = "gpio"; > drive-strength = <8>; > bias-pull-up; > }; > > - touchscreen_pins: ts-pins-gpio-state { > + touchscreen_irq_n: ts-irq-n-gpio-state { > pins = "gpio125"; > function = "gpio"; > drive-strength = <2>; > bias-disable; > }; > > touchscreen_i2c_pins: qup-i2c2-gpio-state { > pins = "gpio27", "gpio28"; > > -- > 2.55.0 > >