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author | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-01-20 14:01:31 -0300 |
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committer | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-01-20 14:01:31 -0300 |
commit | b4b7ff4b08e691656c9d77c758fc355833128ac0 (patch) | |
tree | 82fcb00e6b918026dc9f2d1f05ed8eee83874cc0 /Documentation/devicetree/bindings/mipi/dsi/mipi-dsi-bus.txt | |
parent | 35acfa0fc609f2a2cd95cef4a6a9c3a5c38f1778 (diff) |
Linux-libre 4.4-gnupck-4.4-gnu
Diffstat (limited to 'Documentation/devicetree/bindings/mipi/dsi/mipi-dsi-bus.txt')
-rw-r--r-- | Documentation/devicetree/bindings/mipi/dsi/mipi-dsi-bus.txt | 98 |
1 files changed, 0 insertions, 98 deletions
diff --git a/Documentation/devicetree/bindings/mipi/dsi/mipi-dsi-bus.txt b/Documentation/devicetree/bindings/mipi/dsi/mipi-dsi-bus.txt deleted file mode 100644 index 973c27273..000000000 --- a/Documentation/devicetree/bindings/mipi/dsi/mipi-dsi-bus.txt +++ /dev/null @@ -1,98 +0,0 @@ -MIPI DSI (Display Serial Interface) busses -========================================== - -The MIPI Display Serial Interface specifies a serial bus and a protocol for -communication between a host and up to four peripherals. This document will -define the syntax used to represent a DSI bus in a device tree. - -This document describes DSI bus-specific properties only or defines existing -standard properties in the context of the DSI bus. - -Each DSI host provides a DSI bus. The DSI host controller's node contains a -set of properties that characterize the bus. Child nodes describe individual -peripherals on that bus. - -The following assumes that only a single peripheral is connected to a DSI -host. Experience shows that this is true for the large majority of setups. - -DSI host --------- - -In addition to the standard properties and those defined by the parent bus of -a DSI host, the following properties apply to a node representing a DSI host. - -Required properties: -- #address-cells: The number of cells required to represent an address on the - bus. DSI peripherals are addressed using a 2-bit virtual channel number, so - a maximum of 4 devices can be addressed on a single bus. Hence the value of - this property should be 1. -- #size-cells: Should be 0. There are cases where it makes sense to use a - different value here. See below. - -DSI peripheral --------------- - -Peripherals are represented as child nodes of the DSI host's node. Properties -described here apply to all DSI peripherals, but individual bindings may want -to define additional, device-specific properties. - -Required properties: -- reg: The virtual channel number of a DSI peripheral. Must be in the range - from 0 to 3. - -Some DSI peripherals respond to more than a single virtual channel. In that -case two alternative representations can be chosen: -- The reg property can take multiple entries, one for each virtual channel - that the peripheral responds to. -- If the virtual channels that a peripheral responds to are consecutive, the - #size-cells can be set to 1. The first cell of each entry in the reg - property is the number of the first virtual channel and the second cell is - the number of consecutive virtual channels. - -Example -------- - - dsi-host { - ... - - #address-cells = <1>; - #size-cells = <0>; - - /* peripheral responds to virtual channel 0 */ - peripheral@0 { - compatible = "..."; - reg = <0>; - }; - - ... - }; - - dsi-host { - ... - - #address-cells = <1>; - #size-cells = <0>; - - /* peripheral responds to virtual channels 0 and 2 */ - peripheral@0 { - compatible = "..."; - reg = <0, 2>; - }; - - ... - }; - - dsi-host { - ... - - #address-cells = <1>; - #size-cells = <1>; - - /* peripheral responds to virtual channels 1, 2 and 3 */ - peripheral@1 { - compatible = "..."; - reg = <1 3>; - }; - - ... - }; |