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Diffstat (limited to 'Documentation/devicetree/bindings/misc/ifm-csi.txt')
-rw-r--r-- | Documentation/devicetree/bindings/misc/ifm-csi.txt | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/misc/ifm-csi.txt b/Documentation/devicetree/bindings/misc/ifm-csi.txt new file mode 100644 index 000000000000..5bdfffb0b9f7 --- /dev/null +++ b/Documentation/devicetree/bindings/misc/ifm-csi.txt | |||
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1 | IFM camera sensor interface on mpc5200 LocalPlus bus | ||
2 | |||
3 | Required properties: | ||
4 | - compatible: "ifm,o2d-csi" | ||
5 | - reg: specifies sensor chip select number and associated address range | ||
6 | - interrupts: external interrupt line number and interrupt sense mode | ||
7 | of the interrupt line signaling frame valid events | ||
8 | - gpios: three gpio-specifiers for "capture", "reset" and "master enable" | ||
9 | GPIOs (strictly in this order). | ||
10 | - ifm,csi-clk-handle: the phandle to a node in the DT describing the sensor | ||
11 | clock generator. This node is usually a general purpose timer controller. | ||
12 | - ifm,csi-addr-bus-width: address bus width (valid values are 16, 24, 25) | ||
13 | - ifm,csi-data-bus-width: data bus width (valid values are 8 and 16) | ||
14 | - ifm,csi-wait-cycles: sensor bus wait cycles | ||
15 | |||
16 | Optional properties: | ||
17 | - ifm,csi-byte-swap: if this property is present, the byte swapping on | ||
18 | the bus will be enabled. | ||
19 | |||
20 | Example: | ||
21 | |||
22 | csi@3,0 { | ||
23 | compatible = "ifm,o2d-csi"; | ||
24 | reg = <3 0 0x00100000>; /* CS 3, 1 MiB range */ | ||
25 | interrupts = <1 1 2>; /* IRQ1, edge falling */ | ||
26 | |||
27 | ifm,csi-clk-handle = <&timer7>; | ||
28 | gpios = <&gpio_simple 23 0 /* image_capture */ | ||
29 | &gpio_simple 26 0 /* image_reset */ | ||
30 | &gpio_simple 29 0>; /* image_master_en */ | ||
31 | |||
32 | ifm,csi-addr-bus-width = <24>; | ||
33 | ifm,csi-data-bus-width = <8>; | ||
34 | ifm,csi-wait-cycles = <0>; | ||
35 | }; | ||
36 | |||
37 | The base address of the used chip select is specified in the | ||
38 | ranges property of the parent localbus node, for example: | ||
39 | |||
40 | ranges = <0 0 0xff000000 0x01000000 | ||
41 | 3 0 0xe3000000 0x00100000>; | ||