From: Linus Walleij <linus.walleij@linaro.org>
To: Thierry Reding <thierry.reding@gmail.com>,
Sam Ravnborg <sam@ravnborg.org>,
dri-devel@lists.freedesktop.org
Cc: devicetree@vger.kernel.org
Subject: [PATCH 1/2] drm/panel: Add DT bindings for Samsung LMS397KF04
Date: Tue, 6 Apr 2021 01:47:12 +0200 [thread overview]
Message-ID: <20210405234713.3190693-1-linus.walleij@linaro.org> (raw)
This adds device tree bindings for the Samsung LMS397KF04
RGB DPI display panel.
Cc: devicetree@vger.kernel.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
.../display/panel/samsung,lms397kf04.yaml | 74 +++++++++++++++++++
1 file changed, 74 insertions(+)
create mode 100644 Documentation/devicetree/bindings/display/panel/samsung,lms397kf04.yaml
diff --git a/Documentation/devicetree/bindings/display/panel/samsung,lms397kf04.yaml b/Documentation/devicetree/bindings/display/panel/samsung,lms397kf04.yaml
new file mode 100644
index 000000000000..4cb75a5f2e3a
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/panel/samsung,lms397kf04.yaml
@@ -0,0 +1,74 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/panel/samsung,lms397kf04.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Samsung LMS397KF04 display panel
+
+description: The datasheet claims this is based around a display controller
+ named DB7430 with a separate backlight controller.
+
+maintainers:
+ - Linus Walleij <linus.walleij@linaro.org>
+
+allOf:
+ - $ref: panel-common.yaml#
+
+properties:
+ compatible:
+ const: samsung,lms397kf04
+
+ reg: true
+
+ reset-gpios: true
+
+ vci-supply:
+ description: regulator that supplies the VCI analog voltage
+ usually around 3.0 V
+
+ vccio-supply:
+ description: regulator that supplies the VCCIO voltage usually
+ around 1.8 V
+
+ backlight: true
+
+ spi-max-frequency:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: inherited as a SPI client node, the datasheet specifies
+ maximum 300 ns minimum cycle which gives around 3 MHz max frequency
+ maximum: 3000000
+
+ port: true
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+
+ spi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ panel@0 {
+ compatible = "samsung,lms397kf04";
+ spi-max-frequency = <3000000>;
+ reg = <0>;
+ vci-supply = <&lcd_3v0_reg>;
+ vccio-supply = <&lcd_1v8_reg>;
+ reset-gpios = <&gpio 1 GPIO_ACTIVE_LOW>;
+ backlight = <&ktd259>;
+
+ port {
+ panel_in: endpoint {
+ remote-endpoint = <&display_out>;
+ };
+ };
+ };
+ };
+
+...
--
2.29.2
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next reply other threads:[~2021-04-05 23:47 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-05 23:47 Linus Walleij [this message]
2021-04-05 23:47 ` [PATCH 2/2] drm/panel: lms397kf04: Add driver for LMS397KF04 Linus Walleij
2021-04-29 20:20 ` [2/2] " Doug Anderson
2021-05-31 10:51 ` Linus Walleij
2021-04-09 16:15 ` [PATCH 1/2] drm/panel: Add DT bindings for Samsung LMS397KF04 Rob Herring
2021-04-29 14:34 ` Linus Walleij
2021-04-29 20:27 ` Doug Anderson
2021-04-29 20:22 ` [1/2] " Doug Anderson
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