f7354e6c23
Add compatible property for the Exynos5250 and enable the frame start and frame end interrupts. These interrupts are needed for the Exynos5 FIMC-IS firmware. The driver enables those interrupt only where available, depending on the 'compatible' property. This can be optimized further, by exposing some API at the subdev driver, so the host driver can enable extra interrupts only for the image processing chains involving FIMC-IS. Signed-off-by: Shaik Ameer Basha <shaik.ameer@samsung.com> Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
81 lines
2.5 KiB
Text
81 lines
2.5 KiB
Text
Samsung S5P/EXYNOS SoC series MIPI CSI-2 receiver (MIPI CSIS)
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-------------------------------------------------------------
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Required properties:
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- compatible : "samsung,s5pv210-csis" for S5PV210 (S5PC110),
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"samsung,exynos4210-csis" for Exynos4210 (S5PC210),
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"samsung,exynos4212-csis" for Exynos4212/Exynos4412,
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"samsung,exynos5250-csis" for Exynos5250;
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- reg : offset and length of the register set for the device;
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- interrupts : should contain MIPI CSIS interrupt; the format of the
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interrupt specifier depends on the interrupt controller;
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- bus-width : maximum number of data lanes supported (SoC specific);
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- vddio-supply : MIPI CSIS I/O and PLL voltage supply (e.g. 1.8V);
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- vddcore-supply : MIPI CSIS Core voltage supply (e.g. 1.1V);
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- clocks : list of clock specifiers, corresponding to entries in
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clock-names property;
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- clock-names : must contain "csis", "sclk_csis" entries, matching entries
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in the clocks property.
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Optional properties:
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- clock-frequency : The IP's main (system bus) clock frequency in Hz, default
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value when this property is not specified is 166 MHz;
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- samsung,csis-wclk : CSI-2 wrapper clock selection. If this property is present
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external clock from CMU will be used, or the bus clock if
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if it's not specified.
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The device node should contain one 'port' child node with one child 'endpoint'
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node, according to the bindings defined in Documentation/devicetree/bindings/
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media/video-interfaces.txt. The following are properties specific to those nodes.
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port node
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---------
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- reg : (required) must be 3 for camera C input (CSIS0) or 4 for
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camera D input (CSIS1);
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endpoint node
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-------------
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- data-lanes : (required) an array specifying active physical MIPI-CSI2
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data input lanes and their mapping to logical lanes; the
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array's content is unused, only its length is meaningful;
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- samsung,csis-hs-settle : (optional) differential receiver (HS-RX) settle time;
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Example:
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reg0: regulator@0 {
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};
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reg1: regulator@1 {
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};
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/* SoC properties */
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csis_0: csis@11880000 {
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compatible = "samsung,exynos4210-csis";
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reg = <0x11880000 0x1000>;
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interrupts = <0 78 0>;
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#address-cells = <1>;
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#size-cells = <0>;
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};
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/* Board properties */
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csis_0: csis@11880000 {
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clock-frequency = <166000000>;
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vddio-supply = <®0>;
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vddcore-supply = <®1>;
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port {
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reg = <3>; /* 3 - CSIS0, 4 - CSIS1 */
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csis0_ep: endpoint {
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remote-endpoint = <...>;
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data-lanes = <1>, <2>;
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samsung,csis-hs-settle = <12>;
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};
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};
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};
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