[PATCH v5 03/10] dt-bindings: display: Add STM32 LTDC driver

From: Yannick Fertre <yannick.fertre@st.com>
To: Alexandre TORGUE <alexandre.torgue@st.com>,
	Thierry Reding <thierry.reding@gmail.com>,
	David Airlie <airlied@linux.ie>,
	Maxime Coquelin <mcoquelin.stm32@gmail.com>,
	Russell King <linux@armlinux.org.uk>,
	Mark Rutland <mark.rutland@arm.com>,
	Rob Herring <robh+dt@kernel.org>, Arnd Bergmann <arnd@arndb.de>,
	Benjamin Gaignard <benjamin.gaignard@st.com>,
	Yannick Fertre <yannick.fertre@st.com>
Cc: devicetree@vger.kernel.org, kernel@stlinux.com,
	Philippe Cornu <philippe.cornu@st.com>,
	Fabien Dessenne <fabien.dessenne@st.com>,
	dri-devel@lists.freedesktop.org,
	Mickael Reulier <mickael.reulier@st.com>,
	Vincent Abriou <vincent.abriou@st.com>,
	Gabriel FERNANDEZ <gabriel.fernandez@st.com>,
	linux-arm-kernel@lists.infradead.org
Subject: [PATCH v5 03/10] dt-bindings: display: Add STM32 LTDC driver
Date: Tue, 28 Mar 2017 11:44:46 +0200	[thread overview]
Message-ID: <1490694293-18358-4-git-send-email-yannick.fertre@st.com> (raw)
In-Reply-To: <1490694293-18358-1-git-send-email-yannick.fertre@st.com>

This patch adds documentation of device tree bindings for the STM32 LTDC
(Lcd-Tft Display Controller).

Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Yannick Fertre <yannick.fertre@st.com>
---
 .../devicetree/bindings/display/st,stm32-ltdc.txt  | 36 ++++++++++++++++++++++
 1 file changed, 36 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/display/st,stm32-ltdc.txt

diff --git a/Documentation/devicetree/bindings/display/st,stm32-ltdc.txt b/Documentation/devicetree/bindings/display/st,stm32-ltdc.txt
new file mode 100644
index 0000000..8e14769
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/st,stm32-ltdc.txt
@@ -0,0 +1,36 @@
+* STMicroelectronics STM32 lcd-tft display controller
+
+- ltdc: lcd-tft display controller host
+  must be a sub-node of st-display-subsystem
+  Required properties:
+  - compatible: "st,stm32-ltdc"
+  - reg: Physical base address of the IP registers and length of memory mapped region.
+  - clocks: A list of phandle + clock-specifier pairs, one for each
+    entry in 'clock-names'.
+  - clock-names: A list of clock names. For ltdc it should contain:
+      - "lcd" for the clock feeding the output pixel clock & IP clock.
+  - resets: reset to be used by the device (defined by use of RCC macro).
+  Required nodes:
+    - Video port for RGB output.
+
+Example:
+
+/ {
+	...
+	soc {
+	...
+		ltdc: display-controller@40016800 {
+			compatible = "st,stm32-ltdc";
+			reg = <0x40016800 0x200>;
+			interrupts = <88>, <89>;
+			resets = <&rcc STM32F4_APB2_RESET(LTDC)>;
+			clocks = <&rcc 1 CLK_LCD>;
+			clock-names = "lcd";
+
+			port {
+				ltdc_out_rgb: endpoint {
+				};
+			};
+		};
+	};
+};
-- 
1.9.1

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