From: Yong Deng <yong.deng@magewell.com>
To: Maxime Ripard <maxime.ripard@bootlin.com>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>,
Rob Herring <robh+dt@kernel.org>,
Mark Rutland <mark.rutland@arm.com>, Chen-Yu Tsai <wens@csie.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
"David S. Miller" <davem@davemloft.net>,
Andrew Morton <akpm@linux-foundation.org>,
Arnd Bergmann <arnd@arndb.de>,
Hans Verkuil <hans.verkuil@cisco.com>,
Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
Geert Uytterhoeven <geert@linux-m68k.org>,
Neil Armstrong <narmstrong@baylibre.com>,
Philipp Zabel <p.zabel@pengutronix.de>,
Jacopo Mondi <jacopo+renesas@jmondi.org>,
Thomas Gleixner <tglx@linutronix.de>,
Todor Tomov <todor.tomov@linaro.org>,
linux-media@vger.kernel.org, devicetree@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, linux-sunxi@googlegroups.com,
Sakari Ailus <sakari.ailus@linux.intel.com>,
Yong Deng <yong.deng@magewell.com>
Subject: [PATCH v12 1/2] dt-bindings: media: Add Allwinner V3s Camera Sensor Interface (CSI)
Date: Tue, 30 Oct 2018 16:12:23 +0800 [thread overview]
Message-ID: <1540887143-27904-1-git-send-email-yong.deng@magewell.com> (raw)
Add binding documentation for Allwinner V3s CSI.
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Yong Deng <yong.deng@magewell.com>
---
.../devicetree/bindings/media/sun6i-csi.txt | 56 ++++++++++++++++++++++
1 file changed, 56 insertions(+)
create mode 100644 Documentation/devicetree/bindings/media/sun6i-csi.txt
diff --git a/Documentation/devicetree/bindings/media/sun6i-csi.txt b/Documentation/devicetree/bindings/media/sun6i-csi.txt
new file mode 100644
index 000000000000..443e18c181b3
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/sun6i-csi.txt
@@ -0,0 +1,56 @@
+Allwinner V3s Camera Sensor Interface
+-------------------------------------
+
+Allwinner V3s SoC features a CSI module(CSI1) with parallel interface.
+
+Required properties:
+ - compatible: value must be "allwinner,sun8i-v3s-csi"
+ - reg: base address and size of the memory-mapped region.
+ - interrupts: interrupt associated to this IP
+ - clocks: phandles to the clocks feeding the CSI
+ * bus: the CSI interface clock
+ * mod: the CSI module clock
+ * ram: the CSI DRAM clock
+ - clock-names: the clock names mentioned above
+ - resets: phandles to the reset line driving the CSI
+
+The CSI node should contain one 'port' child node with one child 'endpoint'
+node, according to the bindings defined in
+Documentation/devicetree/bindings/media/video-interfaces.txt.
+
+Endpoint node properties for CSI
+---------------------------------
+See the video-interfaces.txt for a detailed description of these properties.
+- remote-endpoint : (required) a phandle to the bus receiver's endpoint
+ node
+- bus-width: : (required) must be 8, 10, 12 or 16
+- pclk-sample : (optional) (default: sample on falling edge)
+- hsync-active : (required; parallel-only)
+- vsync-active : (required; parallel-only)
+
+Example:
+
+csi1: csi@1cb4000 {
+ compatible = "allwinner,sun8i-v3s-csi";
+ reg = <0x01cb4000 0x1000>;
+ interrupts = <GIC_SPI 84 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&ccu CLK_BUS_CSI>,
+ <&ccu CLK_CSI1_SCLK>,
+ <&ccu CLK_DRAM_CSI>;
+ clock-names = "bus", "mod", "ram";
+ resets = <&ccu RST_BUS_CSI>;
+
+ port {
+ /* Parallel bus endpoint */
+ csi1_ep: endpoint {
+ remote-endpoint = <&adv7611_ep>;
+ bus-width = <16>;
+
+ /* If hsync-active/vsync-active are missing,
+ embedded BT.656 sync is used */
+ hsync-active = <0>; /* Active low */
+ vsync-active = <0>; /* Active low */
+ pclk-sample = <1>; /* Rising */
+ };
+ };
+};
--
1.8.3.1
next reply other threads:[~2018-10-30 17:06 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-30 8:12 Yong Deng [this message]
2018-10-30 13:06 ` [PATCH v12 1/2] dt-bindings: media: Add Allwinner V3s Camera Sensor Interface (CSI) Laurent Pinchart
2018-11-23 7:45 ` jacopo mondi
2018-11-23 8:01 ` Yong
2018-11-23 8:13 ` jacopo mondi
2018-11-23 8:33 ` Yong
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