linux-kernel - [PATCH v9 6/9] arm64: dts: allwinner: a64-amarula-relic: Add Techstar TS8550B MIPI-DSI panel

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20190529105615.14027-7-jagan@amarulasolutions.com>
Date:   Wed, 29 May 2019 16:26:12 +0530
From:   Jagan Teki <jagan@...rulasolutions.com>
To:     Maxime Ripard <maxime.ripard@...tlin.com>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>, Chen-Yu Tsai <wens@...e.org>,
        dri-devel@...ts.freedesktop.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Cc:     Michael Trimarchi <michael@...rulasolutions.com>,
        devicetree@...r.kernel.org, linux-sunxi@...glegroups.com,
        linux-amarula@...rulasolutions.com,
        Sergey Suloev <ssuloev@...altech.com>,
        Ryan Pannell <ryan@...kl.com>, bshah@...olab.com,
        Jagan Teki <jagan@...rulasolutions.com>
Subject: [PATCH v9 6/9] arm64: dts: allwinner: a64-amarula-relic: Add Techstar TS8550B MIPI-DSI panel

Amarula A64-Relic board by default bound with Techstar TS8550B
MIPI-DSI panel, add support for it.

DSI panel connected via board DSI port with,
- DLDO1 as VCC-DSI supply
- DLDO2 as VCC supply
- DLDO2 as IOVCC supply
- PD24 gpio for reset pin
- PD23 gpio for backlight enable pin

Signed-off-by: Jagan Teki <jagan@...rulasolutions.com>
---
 .../allwinner/sun50i-a64-amarula-relic.dts    | 35 +++++++++++++++++++
 1 file changed, 35 insertions(+)

diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64-amarula-relic.dts b/arch/arm64/boot/dts/allwinner/sun50i-a64-amarula-relic.dts
index 5634245d11db..5109c3258a2f 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-a64-amarula-relic.dts
+++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-amarula-relic.dts
@@ -9,6 +9,7 @@
 #include "sun50i-a64.dtsi"
 
 #include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/pwm/pwm.h>
 
 / {
 	model = "Amarula A64-Relic";
@@ -18,6 +19,14 @@
 		serial0 = &uart0;
 	};
 
+	backlight: backlight {
+		compatible = "pwm-backlight";
+		pwms = <&pwm 0 50000 PWM_POLARITY_INVERTED>;
+		brightness-levels = <1 2 4 8 16 32 64 128 255>;
+		default-brightness-level = <2>;
+		enable-gpios = <&pio 3 23 GPIO_ACTIVE_HIGH>; /* LCD-BL-EN: PD23 */
+	};
+
 	chosen {
 		stdout-path = "serial0:115200n8";
 	};
@@ -80,6 +89,28 @@
 	};
 };
 
+&de {
+	status = "okay";
+};
+
+&dphy {
+	status = "okay";
+};
+
+&dsi {
+	vcc-dsi-supply = <&reg_dldo1>;		/* VCC-DSI */
+	status = "okay";
+
+	panel@0 {
+		compatible = "techstar,ts8550b", "sitronix,st7701";
+		reg = <0>;
+		VCC-supply = <&reg_dldo2>;	/* VCC-MIPI */
+		IOVCC-supply = <&reg_dldo2>;	/* VCC-MIPI */
+		reset-gpios = <&pio 3 24 GPIO_ACTIVE_HIGH>; /* LCD-RST: PD24 */
+		backlight = <&backlight>;
+	};
+};
+
 &ehci0 {
 	status = "okay";
 };
@@ -151,6 +182,10 @@
 	status = "okay";
 };
 
+&pwm {
+	status = "okay";
+};
+
 &r_rsb {
 	status = "okay";
 
-- 
2.18.0.321.gffc6fa0e3