From: Ondrej Jirman <megous@megous.com>
To: linux-sunxi@googlegroups.com,
"Thierry Reding" <thierry.reding@gmail.com>,
"Sam Ravnborg" <sam@ravnborg.org>,
"David Airlie" <airlied@linux.ie>,
"Daniel Vetter" <daniel@ffwll.ch>,
"Guido Günther" <agx@sigxcpu.org>,
"Purism Kernel Team" <kernel@puri.sm>,
"Rob Herring" <robh+dt@kernel.org>,
"Maxime Ripard" <mripard@kernel.org>,
"Chen-Yu Tsai" <wens@csie.org>,
"Linus Walleij" <linus.walleij@linaro.org>,
"Icenowy Zheng" <icenowy@aosc.io>
Cc: Ondrej Jirman <megous@megous.com>,
devicetree@vger.kernel.org, Samuel Holland <samuel@sholland.org>,
Bhushan Shah <bshah@kde.org>,
linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org,
Luca Weiss <luca@z3ntu.xyz>, Martijn Braam <martijn@brixit.nl>,
linux-arm-kernel@lists.infradead.org
Subject: [PATCH v5 12/13] arm64: dts: sun50i-a64-pinephone: Enable LCD support on PinePhone
Date: Fri, 26 Jun 2020 02:56:00 +0200 [thread overview]
Message-ID: <20200626005601.241022-13-megous@megous.com> (raw)
In-Reply-To: <20200626005601.241022-1-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>
---
.../allwinner/sun50i-a64-pinephone-1.1.dts | 19 ++++++++++
.../dts/allwinner/sun50i-a64-pinephone.dtsi | 35 +++++++++++++++++++
2 files changed, 54 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..85a7aa5efd32 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 +91,30 @@ &dai {
status = "okay";
};
+&de {
+ status = "okay";
+};
+
+&dphy {
+ status = "okay";
+};
+
+&dsi {
+ vcc-dsi-supply = <®_dldo1>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ 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 +219,10 @@ &r_pio {
*/
};
+&r_pwm {
+ status = "okay";
+};
+
&r_rsb {
status = "okay";
--
2.27.0
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next prev parent reply other threads:[~2020-06-26 7:36 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-26 0:55 [PATCH v5 00/13] Add support for PinePhone LCD panel Ondrej Jirman
2020-06-26 0:55 ` [PATCH v5 01/13] dt-bindings: vendor-prefixes: Add Xingbangda Ondrej Jirman
2020-06-26 0:55 ` [PATCH v5 02/13] dt-bindings: panel: Convert rocktech, jh057n00900 to yaml Ondrej Jirman
2020-06-29 22:02 ` Rob Herring
2020-06-26 0:55 ` [PATCH v5 03/13] dt-bindings: panel: Add compatible for Xingbangda XBD599 panel Ondrej Jirman
2020-06-26 0:55 ` [PATCH v5 04/13] drm/panel: rocktech-jh057n00900: Rename the driver to st7703 Ondrej Jirman
2020-07-01 7:47 ` Linus Walleij
2020-06-26 0:55 ` [PATCH v5 05/13] drm/panel: st7703: Rename functions from jh057n prefix " Ondrej Jirman
2020-07-01 7:48 ` Linus Walleij
2020-06-26 0:55 ` [PATCH v5 06/13] drm/panel: st7703: Prepare for supporting multiple panels Ondrej Jirman
2020-07-01 7:48 ` Linus Walleij
2020-06-26 0:55 ` [PATCH v5 07/13] drm/panel: st7703: Move code specific to jh057n closer together Ondrej Jirman
2020-07-01 7:49 ` Linus Walleij
2020-06-26 0:55 ` [PATCH v5 08/13] drm/panel: st7703: Move generic part of init sequence to enable callback Ondrej Jirman
2020-07-01 7:50 ` Linus Walleij
2020-06-26 0:55 ` [PATCH v5 09/13] drm/panel: st7703: Add support for Xingbangda XBD599 Ondrej Jirman
2020-07-01 7:50 ` Linus Walleij
2020-07-01 10:34 ` Ondřej Jirman
2020-06-26 0:55 ` [PATCH v5 10/13] drm/panel: st7703: Enter sleep after display off Ondrej Jirman
2020-07-01 7:51 ` Linus Walleij
2020-06-26 0:55 ` [PATCH v5 11/13] drm/panel: st7703: Assert reset prior to powering down the regulators Ondrej Jirman
2020-07-01 7:51 ` Linus Walleij
2020-06-26 0:56 ` Ondrej Jirman [this message]
2020-07-01 7:52 ` [PATCH v5 12/13] arm64: dts: sun50i-a64-pinephone: Enable LCD support on PinePhone Linus Walleij
2020-06-26 0:56 ` [PATCH v5 13/13] arm64: dts: sun50i-a64-pinephone: Add touchscreen support Ondrej Jirman
2020-07-01 7:52 ` Linus Walleij
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