From: Priit Laes <plaes@plaes.org>
To: Yong Deng <yong.deng@magewell.com>
Cc: Maxime Ripard <maxime.ripard@free-electrons.com>,
Mauro Carvalho Chehab <mchehab@kernel.org>,
Rob Herring <robh+dt@kernel.org>,
Mark Rutland <mark.rutland@arm.com>, Chen-Yu Tsai <wens@csie.org>,
"David S. Miller" <davem@davemloft.net>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Randy Dunlap <rdunlap@infradead.org>,
Hans Verkuil <hans.verkuil@cisco.com>,
Stanimir Varbanov <stanimir.varbanov@linaro.org>,
Hugues Fruchet <hugues.fruchet@st.com>,
Yannick Fertre <yannick.fertre@st.com>,
Philipp Zabel <p.zabel@pengutronix.de>,
Arnd Bergmann <arnd@arndb.de>,
Benjamin Gaignard <benjamin.gaignard@linaro.org>,
Ramesh Shanmugasundaram <ramesh.shanmugasundaram@bp.renesas.com>,
Sakari Ailus <sakari.ailus@linux.intel.com>,
Rick Chang <rick.chang@mediatek.com>,
linux-media@vger.kernel.org, devicetree@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, linux-sunxi@googlegroups.com
Subject: Re: [linux-sunxi] [PATCH v4 1/2] dt-bindings: media: Add Allwinner V3s Camera Sensor Interface (CSI)
Date: Fri, 22 Dec 2017 10:00:08 +0000 [thread overview]
Message-ID: <20171222100008.nmmzwhtmputizn7d@plaes.org> (raw)
In-Reply-To: <1513935689-35415-1-git-send-email-yong.deng@magewell.com>
On Fri, Dec 22, 2017 at 05:41:29PM +0800, Yong Deng wrote:
> Add binding documentation for Allwinner V3s CSI.
>
> Signed-off-by: Yong Deng <yong.deng@magewell.com>
> ---
> .../devicetree/bindings/media/sun6i-csi.txt | 51 ++++++++++++++++++++++
> 1 file changed, 51 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 0000000..b5bfe3f
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/media/sun6i-csi.txt
> @@ -0,0 +1,51 @@
> +Allwinner V3s Camera Sensor Interface
> +------------------------------
Not sure whether syntax for these files is proper reStructuredText/Markdown,
but the underline-ish style expects the title and underline having same length.
> +
> +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
> +
> +- ports: A ports node with endpoint definitions as defined in
> + Documentation/devicetree/bindings/media/video-interfaces.txt.
> + Currently, the driver only support the parallel interface. So, a single port
^^ supports
> + node with one endpoint and parallel bus is supported.
> +
> +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 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + /* Parallel bus endpoint */
> + csi1_ep: endpoint {
> + remote-endpoint = <&adv7611_ep>;
> + bus-width = <16>;
> + data-shift = <0>;
> +
> + /* If hsync-active/vsync-active are missing,
> + embedded BT.656 sync is used */
> + hsync-active = <0>; /* Active low */
> + vsync-active = <0>; /* Active low */
> + data-active = <1>; /* Active high */
> + pclk-sample = <1>; /* Rising */
> + };
> + };
> + };
> +
> --
> 1.8.3.1
>
> --
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next prev parent reply other threads:[~2017-12-22 10:00 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-12-22 9:41 [PATCH v4 1/2] dt-bindings: media: Add Allwinner V3s Camera Sensor Interface (CSI) Yong Deng
2017-12-22 10:00 ` Priit Laes [this message]
2017-12-22 10:58 ` [linux-sunxi] " Yong
2017-12-26 21:53 ` Rob Herring
2017-12-26 21:55 ` Rob Herring
2017-12-28 1:05 ` Yong
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