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Add support for probing the TC358743 subdevice from device tree. The reference clock must be supplied using the common clock bindings. MIPI CSI-2 specific properties are parsed from the OF graph endpoint node and support for a non-continuous MIPI CSI-2 clock is added. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
49 lines
1.6 KiB
Plaintext
49 lines
1.6 KiB
Plaintext
* Toshiba TC358743 HDMI-RX to MIPI CSI2-TX Bridge
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The Toshiba TC358743 HDMI-RX to MIPI CSI2-TX (H2C) is a bridge that converts
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a HDMI stream to MIPI CSI-2 TX. It is programmable through I2C.
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Required Properties:
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- compatible: value should be "toshiba,tc358743"
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- clocks, clock-names: should contain a phandle link to the reference clock
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source, the clock input is named "refclk".
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Optional Properties:
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- reset-gpios: gpio phandle GPIO connected to the reset pin
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- interrupts, interrupt-parent: GPIO connected to the interrupt pin
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- data-lanes: should be <1 2 3 4> for four-lane operation,
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or <1 2> for two-lane operation
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- clock-lanes: should be <0>
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- clock-noncontinuous: Presence of this boolean property decides whether the
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MIPI CSI-2 clock is continuous or non-continuous.
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- link-frequencies: List of allowed link frequencies in Hz. Each frequency is
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expressed as a 64-bit big-endian integer. The frequency
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is half of the bps per lane due to DDR transmission.
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For further information on the MIPI CSI-2 endpoint node properties, see
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Documentation/devicetree/bindings/media/video-interfaces.txt.
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Example:
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tc358743@0f {
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compatible = "toshiba,tc358743";
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reg = <0x0f>;
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clocks = <&hdmi_osc>;
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clock-names = "refclk";
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reset-gpios = <&gpio6 9 GPIO_ACTIVE_LOW>;
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interrupt-parent = <&gpio2>;
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interrupts = <5 IRQ_TYPE_LEVEL_HIGH>;
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port {
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tc358743_out: endpoint {
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remote-endpoint = <&mipi_csi2_in>;
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data-lanes = <1 2 3 4>;
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clock-lanes = <0>;
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clock-noncontinuous;
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link-frequencies = /bits/ 64 <297000000>;
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};
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};
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};
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