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[188.192.41.75]) by smtp.gmail.com with ESMTPSA id x18sm1295067eda.39.2017.04.27.07.37.57 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Thu, 27 Apr 2017 07:37:57 -0700 (PDT) From: Ulrich Hecht To: geert@glider.be, horms@verge.net.au Cc: linux-pwm@vger.kernel.org, linux-renesas-soc@vger.kernel.org, magnus.damm@gmail.com, laurent.pinchart@ideasonboard.com, Ulrich Hecht Subject: [PATCH v2 4/8] arm64: dts: r8a7796: salvator-x: Add panel backlight support Date: Thu, 27 Apr 2017 16:37:39 +0200 Message-Id: <1493303863-23719-5-git-send-email-ulrich.hecht+renesas@gmail.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1493303863-23719-1-git-send-email-ulrich.hecht+renesas@gmail.com> References: <1493303863-23719-1-git-send-email-ulrich.hecht+renesas@gmail.com> Sender: linux-renesas-soc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-renesas-soc@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP The panel backlight is controlled through a GPIO and a PWM channel. Signed-off-by: Ulrich Hecht Reviewed-by: Laurent Pinchart --- arch/arm64/boot/dts/renesas/r8a7796-salvator-x.dts | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) diff --git a/arch/arm64/boot/dts/renesas/r8a7796-salvator-x.dts b/arch/arm64/boot/dts/renesas/r8a7796-salvator-x.dts index 14d9e51..abda84c 100644 --- a/arch/arm64/boot/dts/renesas/r8a7796-salvator-x.dts +++ b/arch/arm64/boot/dts/renesas/r8a7796-salvator-x.dts @@ -133,6 +133,11 @@ function = "i2c2"; }; + pwm1_pins: pwm { + groups = "pwm1_a"; + function = "pwm1"; + }; + sdhi0_pins: sd0 { groups = "sdhi0_data4", "sdhi0_ctrl"; function = "sdhi0"; @@ -183,6 +188,16 @@ interrupt-parent = <&gpio2>; interrupts = <11 IRQ_TYPE_LEVEL_LOW>; }; + + backlight: backlight { + compatible = "pwm-backlight"; + pwms = <&pwm1 0 50000>; + + brightness-levels = <256 128 64 16 8 4 0>; + default-brightness-level = <6>; + + enable-gpios = <&gpio6 7 GPIO_ACTIVE_HIGH>; + }; }; &extal_clk { @@ -235,6 +250,13 @@ status = "okay"; }; +&pwm1 { + pinctrl-0 = <&pwm1_pins>; + pinctrl-names = "default"; + + status = "okay"; +}; + &scif1 { pinctrl-0 = <&scif1_pins>; pinctrl-names = "default";