From: Ondrej Jirman <megous@megous.com> To: Rob Herring <robh+dt@kernel.org>, Maxime Ripard <mripard@kernel.org>, Chen-Yu Tsai <wens@csie.org>, Icenowy Zheng <icenowy@aosc.io> Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Samuel Holland <samuel@sholland.org>, Martijn Braam <martijn@brixit.nl>, Luca Weiss <luca@z3ntu.xyz>, Bhushan Shah <bshah@kde.org>, Ondrej Jirman <megous@megous.com>, Linus Walleij <linus.walleij@linaro.org> Subject: [PATCH v8 1/2] arm64: dts: sun50i-a64-pinephone: Enable LCD support on PinePhone Date: Thu, 2 Jul 2020 10:14:31 +0200 [thread overview] Message-ID: <20200702081432.1727696-2-megous@megous.com> (raw) In-Reply-To: <20200702081432.1727696-1-megous@megous.com> From: Icenowy Zheng <icenowy@aosc.io> PinePhone uses PWM backlight and a XBD599 LCD panel over DSI for display. Backlight levels curve was optimized by Martijn Braam using a lux meter. Add its device nodes. Signed-off-by: Icenowy Zheng <icenowy@aosc.io> Signed-off-by: Martijn Braam <martijn@brixit.nl> Signed-off-by: Ondrej Jirman <megous@megous.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> --- .../allwinner/sun50i-a64-pinephone-1.1.dts | 19 +++++++++++ .../dts/allwinner/sun50i-a64-pinephone.dtsi | 33 +++++++++++++++++++ 2 files changed, 52 insertions(+) diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone-1.1.dts b/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone-1.1.dts index 06a775c41664..3e99a87e9ce5 100644 --- a/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone-1.1.dts +++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone-1.1.dts @@ -9,3 +9,22 @@ / { model = "Pine64 PinePhone Braveheart (1.1)"; compatible = "pine64,pinephone-1.1", "allwinner,sun50i-a64"; }; + +&backlight { + power-supply = <®_ldo_io0>; + /* + * PWM backlight circuit on this PinePhone revision was changed since + * 1.0, and the lowest PWM duty cycle that doesn't lead to backlight + * being off is around 20%. Duty cycle for the lowest brightness level + * also varries quite a bit between individual boards, so the lowest + * value here was chosen as a safe default. + */ + brightness-levels = < + 774 793 814 842 + 882 935 1003 1088 + 1192 1316 1462 1633 + 1830 2054 2309 2596 + 2916 3271 3664 4096>; + num-interpolated-steps = <50>; + default-brightness-level = <400>; +}; diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone.dtsi index cefda145c3c9..a89425ad3727 100644 --- a/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone.dtsi +++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone.dtsi @@ -16,6 +16,13 @@ aliases { serial0 = &uart0; }; + backlight: backlight { + compatible = "pwm-backlight"; + pwms = <&r_pwm 0 50000 PWM_POLARITY_INVERTED>; + enable-gpios = <&pio 7 10 GPIO_ACTIVE_HIGH>; /* PH10 */ + /* Backlight configuration differs per PinePhone revision. */ + }; + chosen { stdout-path = "serial0:115200n8"; }; @@ -84,6 +91,28 @@ &dai { status = "okay"; }; +&de { + status = "okay"; +}; + +&dphy { + status = "okay"; +}; + +&dsi { + vcc-dsi-supply = <®_dldo1>; + status = "okay"; + + panel@0 { + compatible = "xingbangda,xbd599"; + reg = <0>; + reset-gpios = <&pio 3 23 GPIO_ACTIVE_LOW>; /* PD23 */ + iovcc-supply = <®_dldo2>; + vcc-supply = <®_ldo_io0>; + backlight = <&backlight>; + }; +}; + &ehci0 { status = "okay"; }; @@ -188,6 +217,10 @@ &r_pio { */ }; +&r_pwm { + status = "okay"; +}; + &r_rsb { status = "okay"; -- 2.27.0
WARNING: multiple messages have this Message-ID (diff)
From: Ondrej Jirman <megous@megous.com> To: Rob Herring <robh+dt@kernel.org>, Maxime Ripard <mripard@kernel.org>, Chen-Yu Tsai <wens@csie.org>, Icenowy Zheng <icenowy@aosc.io> Cc: Ondrej Jirman <megous@megous.com>, devicetree@vger.kernel.org, Samuel Holland <samuel@sholland.org>, Linus Walleij <linus.walleij@linaro.org>, Bhushan Shah <bshah@kde.org>, linux-kernel@vger.kernel.org, Luca Weiss <luca@z3ntu.xyz>, Martijn Braam <martijn@brixit.nl>, linux-arm-kernel@lists.infradead.org Subject: [PATCH v8 1/2] arm64: dts: sun50i-a64-pinephone: Enable LCD support on PinePhone Date: Thu, 2 Jul 2020 10:14:31 +0200 [thread overview] Message-ID: <20200702081432.1727696-2-megous@megous.com> (raw) In-Reply-To: <20200702081432.1727696-1-megous@megous.com> From: Icenowy Zheng <icenowy@aosc.io> PinePhone uses PWM backlight and a XBD599 LCD panel over DSI for display. Backlight levels curve was optimized by Martijn Braam using a lux meter. Add its device nodes. Signed-off-by: Icenowy Zheng <icenowy@aosc.io> Signed-off-by: Martijn Braam <martijn@brixit.nl> Signed-off-by: Ondrej Jirman <megous@megous.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> --- .../allwinner/sun50i-a64-pinephone-1.1.dts | 19 +++++++++++ .../dts/allwinner/sun50i-a64-pinephone.dtsi | 33 +++++++++++++++++++ 2 files changed, 52 insertions(+) diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone-1.1.dts b/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone-1.1.dts index 06a775c41664..3e99a87e9ce5 100644 --- a/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone-1.1.dts +++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone-1.1.dts @@ -9,3 +9,22 @@ / { model = "Pine64 PinePhone Braveheart (1.1)"; compatible = "pine64,pinephone-1.1", "allwinner,sun50i-a64"; }; + +&backlight { + power-supply = <®_ldo_io0>; + /* + * PWM backlight circuit on this PinePhone revision was changed since + * 1.0, and the lowest PWM duty cycle that doesn't lead to backlight + * being off is around 20%. Duty cycle for the lowest brightness level + * also varries quite a bit between individual boards, so the lowest + * value here was chosen as a safe default. + */ + brightness-levels = < + 774 793 814 842 + 882 935 1003 1088 + 1192 1316 1462 1633 + 1830 2054 2309 2596 + 2916 3271 3664 4096>; + num-interpolated-steps = <50>; + default-brightness-level = <400>; +}; diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone.dtsi index cefda145c3c9..a89425ad3727 100644 --- a/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone.dtsi +++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone.dtsi @@ -16,6 +16,13 @@ aliases { serial0 = &uart0; }; + backlight: backlight { + compatible = "pwm-backlight"; + pwms = <&r_pwm 0 50000 PWM_POLARITY_INVERTED>; + enable-gpios = <&pio 7 10 GPIO_ACTIVE_HIGH>; /* PH10 */ + /* Backlight configuration differs per PinePhone revision. */ + }; + chosen { stdout-path = "serial0:115200n8"; }; @@ -84,6 +91,28 @@ &dai { status = "okay"; }; +&de { + status = "okay"; +}; + +&dphy { + status = "okay"; +}; + +&dsi { + vcc-dsi-supply = <®_dldo1>; + status = "okay"; + + panel@0 { + compatible = "xingbangda,xbd599"; + reg = <0>; + reset-gpios = <&pio 3 23 GPIO_ACTIVE_LOW>; /* PD23 */ + iovcc-supply = <®_dldo2>; + vcc-supply = <®_ldo_io0>; + backlight = <&backlight>; + }; +}; + &ehci0 { status = "okay"; }; @@ -188,6 +217,10 @@ &r_pio { */ }; +&r_pwm { + status = "okay"; +}; + &r_rsb { status = "okay"; -- 2.27.0 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2020-07-02 8:14 UTC|newest] Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-07-02 8:14 [PATCH v8 0/2] Add support for PinePhone LCD panel Ondrej Jirman 2020-07-02 8:14 ` Ondrej Jirman 2020-07-02 8:14 ` Ondrej Jirman [this message] 2020-07-02 8:14 ` [PATCH v8 1/2] arm64: dts: sun50i-a64-pinephone: Enable LCD support on PinePhone Ondrej Jirman 2020-07-02 8:14 ` [PATCH v8 2/2] arm64: dts: sun50i-a64-pinephone: Add touchscreen support Ondrej Jirman 2020-07-02 8:14 ` Ondrej Jirman 2020-07-03 12:17 ` Maxime Ripard 2020-07-03 12:17 ` Maxime Ripard 2020-07-03 13:08 ` Ondřej Jirman 2020-07-03 13:08 ` Ondřej Jirman
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