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authorJosé Pekkarinen <jose.pekkarinen@nokia.com>2016-04-11 10:41:07 +0300
committerJosé Pekkarinen <jose.pekkarinen@nokia.com>2016-04-13 08:17:18 +0300
commite09b41010ba33a20a87472ee821fa407a5b8da36 (patch)
treed10dc367189862e7ca5c592f033dc3726e1df4e3 /kernel/Documentation/devicetree/bindings/video/renesas,du.txt
parentf93b97fd65072de626c074dbe099a1fff05ce060 (diff)
These changes are the raw update to linux-4.4.6-rt14. Kernel sources
are taken from kernel.org, and rt patch from the rt wiki download page. During the rebasing, the following patch collided: Force tick interrupt and get rid of softirq magic(I70131fb85). Collisions have been removed because its logic was found on the source already. Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769 Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
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-* Renesas R-Car Display Unit (DU)
-
-Required Properties:
-
- - compatible: must be one of the following.
- - "renesas,du-r8a7779" for R8A7779 (R-Car H1) compatible DU
- - "renesas,du-r8a7790" for R8A7790 (R-Car H2) compatible DU
- - "renesas,du-r8a7791" for R8A7791 (R-Car M2) compatible DU
-
- - reg: A list of base address and length of each memory resource, one for
- each entry in the reg-names property.
- - reg-names: Name of the memory resources. The DU requires one memory
- resource for the DU core (named "du") and one memory resource for each
- LVDS encoder (named "lvds.x" with "x" being the LVDS controller numerical
- index).
-
- - interrupt-parent: phandle of the parent interrupt controller.
- - interrupts: Interrupt specifiers for the DU interrupts.
-
- - clocks: A list of phandles + clock-specifier pairs, one for each entry in
- the clock-names property.
- - clock-names: Name of the clocks. This property is model-dependent.
- - R8A7779 uses a single functional clock. The clock doesn't need to be
- named.
- - R8A7790 and R8A7791 use one functional clock per channel and one clock
- per LVDS encoder. The functional clocks must be named "du.x" with "x"
- being the channel numerical index. The LVDS clocks must be named
- "lvds.x" with "x" being the LVDS encoder numerical index.
- - In addition to the functional and encoder clocks, all DU versions also
- support externally supplied pixel clocks. Those clocks are optional.
- When supplied they must be named "dclkin.x" with "x" being the input
- clock numerical index.
-
-Required nodes:
-
-The connections to the DU output video ports are modeled using the OF graph
-bindings specified in Documentation/devicetree/bindings/graph.txt.
-
-The following table lists for each supported model the port number
-corresponding to each DU output.
-
- Port 0 Port1 Port2
------------------------------------------------------------------------------
- R8A7779 (H1) DPAD 0 DPAD 1 -
- R8A7790 (H2) DPAD LVDS 0 LVDS 1
- R8A7791 (M2) DPAD LVDS 0 -
-
-
-Example: R8A7790 (R-Car H2) DU
-
- du: du@feb00000 {
- compatible = "renesas,du-r8a7790";
- reg = <0 0xfeb00000 0 0x70000>,
- <0 0xfeb90000 0 0x1c>,
- <0 0xfeb94000 0 0x1c>;
- reg-names = "du", "lvds.0", "lvds.1";
- interrupt-parent = <&gic>;
- interrupts = <0 256 IRQ_TYPE_LEVEL_HIGH>,
- <0 268 IRQ_TYPE_LEVEL_HIGH>,
- <0 269 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&mstp7_clks R8A7790_CLK_DU0>,
- <&mstp7_clks R8A7790_CLK_DU1>,
- <&mstp7_clks R8A7790_CLK_DU2>,
- <&mstp7_clks R8A7790_CLK_LVDS0>,
- <&mstp7_clks R8A7790_CLK_LVDS1>;
- clock-names = "du.0", "du.1", "du.2", "lvds.0", "lvds.1";
-
- ports {
- #address-cells = <1>;
- #size-cells = <0>;
-
- port@0 {
- reg = <0>;
- du_out_rgb: endpoint {
- };
- };
- port@1 {
- reg = <1>;
- du_out_lvds0: endpoint {
- };
- };
- port@2 {
- reg = <2>;
- du_out_lvds1: endpoint {
- };
- };
- };
- };