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[83.173.201.248]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-429c54efcadsm99111f8f.5.2025.10.31.05.55.29 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 31 Oct 2025 05:55:29 -0700 (PDT) From: max.oss.09@gmail.com To: Max Krummenacher Cc: Conor Dooley , Fabio Estevam , Krzysztof Kozlowski , Pengutronix Kernel Team , Rob Herring , Sascha Hauer , Shawn Guo , devicetree@vger.kernel.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH] arm64: dts: imx8qm-apalis: add pwm used by the backlight Date: Fri, 31 Oct 2025 13:55:07 +0100 Message-ID: <20251031125510.433175-1-max.oss.09@gmail.com> X-Mailer: git-send-email 2.42.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20251031_055532_051101_3998A3A4 X-CRM114-Status: GOOD ( 11.53 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Max Krummenacher Add pwm node used by the backlight output pin BKL1_PWM and reference it from the pwm-backlight node. Signed-off-by: Max Krummenacher --- arch/arm64/boot/dts/freescale/imx8-apalis-eval.dtsi | 5 ++++- arch/arm64/boot/dts/freescale/imx8-apalis-ixora-v1.1.dtsi | 5 ++++- arch/arm64/boot/dts/freescale/imx8-apalis-ixora-v1.2.dtsi | 5 ++++- arch/arm64/boot/dts/freescale/imx8-apalis-v1.1.dtsi | 7 +++++-- 4 files changed, 17 insertions(+), 5 deletions(-) diff --git a/arch/arm64/boot/dts/freescale/imx8-apalis-eval.dtsi b/arch/arm64/boot/dts/freescale/imx8-apalis-eval.dtsi index 311d4950793c..06790255a764 100644 --- a/arch/arm64/boot/dts/freescale/imx8-apalis-eval.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8-apalis-eval.dtsi @@ -109,7 +109,10 @@ &pciea { status = "okay"; }; -/* TODO: Apalis BKL1_PWM */ +/* Apalis BKL1_PWM */ +&pwm_lvds1 { + status = "okay"; +}; /* Apalis DAP1 */ &sai1 { diff --git a/arch/arm64/boot/dts/freescale/imx8-apalis-ixora-v1.1.dtsi b/arch/arm64/boot/dts/freescale/imx8-apalis-ixora-v1.1.dtsi index 3d8731504ce1..7022de46b8bf 100644 --- a/arch/arm64/boot/dts/freescale/imx8-apalis-ixora-v1.1.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8-apalis-ixora-v1.1.dtsi @@ -196,7 +196,10 @@ &pciea { status = "okay"; }; -/* TODO: Apalis BKL1_PWM */ +/* Apalis BKL1_PWM */ +&pwm_lvds1 { + status = "okay"; +}; /* Apalis DAP1 */ &sai1 { diff --git a/arch/arm64/boot/dts/freescale/imx8-apalis-ixora-v1.2.dtsi b/arch/arm64/boot/dts/freescale/imx8-apalis-ixora-v1.2.dtsi index 106e802a68ba..12732ed7f811 100644 --- a/arch/arm64/boot/dts/freescale/imx8-apalis-ixora-v1.2.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8-apalis-ixora-v1.2.dtsi @@ -245,7 +245,10 @@ &pciea { status = "okay"; }; -/* TODO: Apalis BKL1_PWM */ +/* Apalis BKL1_PWM */ +&pwm_lvds1 { + status = "okay"; +}; /* Apalis DAP1 */ &sai1 { diff --git a/arch/arm64/boot/dts/freescale/imx8-apalis-v1.1.dtsi b/arch/arm64/boot/dts/freescale/imx8-apalis-v1.1.dtsi index 86d018f470c1..66261c0286d6 100644 --- a/arch/arm64/boot/dts/freescale/imx8-apalis-v1.1.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8-apalis-v1.1.dtsi @@ -18,7 +18,7 @@ backlight: backlight { brightness-levels = <0 45 63 88 119 158 203 255>; default-brightness-level = <4>; enable-gpios = <&lsio_gpio1 4 GPIO_ACTIVE_HIGH>; /* Apalis BKL1_ON */ - /* TODO: hook-up to Apalis BKL1_PWM */ + pwms = <&pwm_lvds1 0 6666667 PWM_POLARITY_INVERTED>; status = "disabled"; }; @@ -799,7 +799,10 @@ &phyx2_lpcg { <&hsio_refa_clk>, <&hsio_per_clk>; }; -/* TODO: Apalis BKL1_PWM */ +&pwm_lvds1 { + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_pwm_bkl>; +}; /* Apalis DAP1 */ &sai1 { -- 2.42.0