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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/drm/imx/ldb.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>
Diffstat (limited to 'kernel/Documentation/devicetree/bindings/drm/imx/ldb.txt')
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diff --git a/kernel/Documentation/devicetree/bindings/drm/imx/ldb.txt b/kernel/Documentation/devicetree/bindings/drm/imx/ldb.txt
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--- a/kernel/Documentation/devicetree/bindings/drm/imx/ldb.txt
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@@ -1,146 +0,0 @@
-Device-Tree bindings for LVDS Display Bridge (ldb)
-
-LVDS Display Bridge
-===================
-
-The LVDS Display Bridge device tree node contains up to two lvds-channel
-nodes describing each of the two LVDS encoder channels of the bridge.
-
-Required properties:
- - #address-cells : should be <1>
- - #size-cells : should be <0>
- - compatible : should be "fsl,imx53-ldb" or "fsl,imx6q-ldb".
- Both LDB versions are similar, but i.MX6 has an additional
- multiplexer in the front to select any of the four IPU display
- interfaces as input for each LVDS channel.
- - gpr : should be <&gpr> on i.MX53 and i.MX6q.
- The phandle points to the iomuxc-gpr region containing the LVDS
- control register.
-- clocks, clock-names : phandles to the LDB divider and selector clocks and to
- the display interface selector clocks, as described in
- Documentation/devicetree/bindings/clock/clock-bindings.txt
- The following clocks are expected on i.MX53:
- "di0_pll" - LDB LVDS channel 0 mux
- "di1_pll" - LDB LVDS channel 1 mux
- "di0" - LDB LVDS channel 0 gate
- "di1" - LDB LVDS channel 1 gate
- "di0_sel" - IPU1 DI0 mux
- "di1_sel" - IPU1 DI1 mux
- On i.MX6q the following additional clocks are needed:
- "di2_sel" - IPU2 DI0 mux
- "di3_sel" - IPU2 DI1 mux
- The needed clock numbers for each are documented in
- Documentation/devicetree/bindings/clock/imx5-clock.txt, and in
- Documentation/devicetree/bindings/clock/imx6q-clock.txt.
-
-Optional properties:
- - pinctrl-names : should be "default" on i.MX53, not used on i.MX6q
- - pinctrl-0 : a phandle pointing to LVDS pin settings on i.MX53,
- not used on i.MX6q
- - fsl,dual-channel : boolean. if it exists, only LVDS channel 0 should
- be configured - one input will be distributed on both outputs in dual
- channel mode
-
-LVDS Channel
-============
-
-Each LVDS Channel has to contain either an of graph link to a panel device node
-or a display-timings node that describes the video timings for the connected
-LVDS display as well as the fsl,data-mapping and fsl,data-width properties.
-
-Required properties:
- - reg : should be <0> or <1>
- - port: Input and output port nodes with endpoint definitions as defined in
- Documentation/devicetree/bindings/graph.txt.
- On i.MX5, the internal two-input-multiplexer is used. Due to hardware
- limitations, only one input port (port@[0,1]) can be used for each channel
- (lvds-channel@[0,1], respectively).
- On i.MX6, there should be four input ports (port@[0-3]) that correspond
- to the four LVDS multiplexer inputs.
- A single output port (port@2 on i.MX5, port@4 on i.MX6) must be connected
- to a panel input port. Optionally, the output port can be left out if
- display-timings are used instead.
-
-Optional properties (required if display-timings are used):
- - display-timings : A node that describes the display timings as defined in
- Documentation/devicetree/bindings/video/display-timing.txt.
- - fsl,data-mapping : should be "spwg" or "jeida"
- This describes how the color bits are laid out in the
- serialized LVDS signal.
- - fsl,data-width : should be <18> or <24>
-
-example:
-
-gpr: iomuxc-gpr@53fa8000 {
- /* ... */
-};
-
-ldb: ldb@53fa8008 {
- #address-cells = <1>;
- #size-cells = <0>;
- compatible = "fsl,imx53-ldb";
- gpr = <&gpr>;
- clocks = <&clks IMX5_CLK_LDB_DI0_SEL>,
- <&clks IMX5_CLK_LDB_DI1_SEL>,
- <&clks IMX5_CLK_IPU_DI0_SEL>,
- <&clks IMX5_CLK_IPU_DI1_SEL>,
- <&clks IMX5_CLK_LDB_DI0_GATE>,
- <&clks IMX5_CLK_LDB_DI1_GATE>;
- clock-names = "di0_pll", "di1_pll",
- "di0_sel", "di1_sel",
- "di0", "di1";
-
- /* Using an of-graph endpoint link to connect the panel */
- lvds-channel@0 {
- #address-cells = <1>;
- #size-cells = <0>;
- reg = <0>;
-
- port@0 {
- reg = <0>;
-
- lvds0_in: endpoint {
- remote-endpoint = <&ipu_di0_lvds0>;
- };
- };
-
- port@2 {
- reg = <2>;
-
- lvds0_out: endpoint {
- remote-endpoint = <&panel_in>;
- };
- };
- };
-
- /* Using display-timings and fsl,data-mapping/width instead */
- lvds-channel@1 {
- #address-cells = <1>;
- #size-cells = <0>;
- reg = <1>;
- fsl,data-mapping = "spwg";
- fsl,data-width = <24>;
-
- display-timings {
- /* ... */
- };
-
- port@1 {
- reg = <1>;
-
- lvds1_in: endpoint {
- remote-endpoint = <&ipu_di1_lvds1>;
- };
- };
- };
-};
-
-panel: lvds-panel {
- /* ... */
-
- port {
- panel_in: endpoint {
- remote-endpoint = <&lvds0_out>;
- };
- };
-};