From: aford173@gmail.com (Adam Ford)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH V2] DTS: davinci: da850evm: Enable LCD and Backlight
Date: Thu, 26 Apr 2018 21:18:54 -0500 [thread overview]
Message-ID: <20180427021854.12850-1-aford173@gmail.com> (raw)
When using the board files the LCD works, but not with the DT.
This adds enables the original da850-evm to work with the same
LCD in device tree mode.
Signed-off-by: Adam Ford <aford173@gmail.com>
---
V2: Add regulator and GPIO enable pins. Remove PWM backlight and replace with GPIO
arch/arm/boot/dts/da850-evm.dts | 63 +++++++++++++++++++++++++++++++++
1 file changed, 63 insertions(+)
diff --git a/arch/arm/boot/dts/da850-evm.dts b/arch/arm/boot/dts/da850-evm.dts
index 11cf3765214f..4c59dab3362e 100644
--- a/arch/arm/boot/dts/da850-evm.dts
+++ b/arch/arm/boot/dts/da850-evm.dts
@@ -164,6 +164,51 @@
status = "okay";
};
};
+
+ backlight {
+ compatible = "gpio-backlight";
+ enable-gpios = <&gpio 48 GPIO_ACTIVE_HIGH>;
+ default-on;
+ };
+
+ panel {
+ compatible = "ti,tilcdc,panel";
+ pinctrl-names = "default";
+ pinctrl-0 = <&lcd_pins>;
+ status = "okay";
+ enable-gpios = <&gpio 47 GPIO_ACTIVE_HIGH>;
+
+ panel-info {
+ ac-bias = <255>;
+ ac-bias-intrpt = <0>;
+ dma-burst-sz = <16>;
+ bpp = <16>;
+ fdd = <0x80>;
+ sync-edge = <0>;
+ sync-ctrl = <1>;
+ raster-order = <0>;
+ fifo-th = <0>;
+ };
+
+ display-timings {
+ 480x272 {
+ clock-frequency = <9000000>;
+ hactive = <480>;
+ vactive = <272>;
+ hfront-porch = <3>;
+ hback-porch = <2>;
+ hsync-len = <42>;
+ vback-porch = <3>;
+ vfront-porch = <4>;
+ vsync-len = <11>;
+ hsync-active = <0>;
+ vsync-active = <0>;
+ de-active = <1>;
+ pixelclk-active = <1>;
+ };
+ };
+ };
+
vbat: fixedregulator0 {
compatible = "regulator-fixed";
regulator-name = "vbat";
@@ -172,6 +217,16 @@
regulator-boot-on;
};
+ lcd_reg: lcdregulator {
+ compatible = "regulator-fixed";
+ regulator-name = "m_lcd_panel_pwr";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ gpio = <&gpio 40 GPIO_ACTIVE_HIGH>;
+ enable-active-high;
+ regulator-always-on;
+ };
+
sound {
compatible = "simple-audio-card";
simple-audio-card,name = "DA850/OMAP-L138 EVM";
@@ -255,6 +310,14 @@
};
};
+&gpio {
+ status = "okay";
+};
+
+&lcdc {
+ status = "okay";
+};
+
&mcasp0 {
#sound-dai-cells = <0>;
status = "okay";
--
2.17.0
next reply other threads:[~2018-04-27 2:18 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-04-27 2:18 Adam Ford [this message]
2018-05-01 11:28 ` [PATCH V2] DTS: davinci: da850evm: Enable LCD and Backlight Sekhar Nori
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20180427021854.12850-1-aford173@gmail.com \
--to=aford173@gmail.com \
--cc=linux-arm-kernel@lists.infradead.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.