On 03/05/2014 06:56 AM, Inki Dae wrote:
2014-02-12 20:31 GMT+09:00 Andrzej Hajda a.hajda@samsung.com:
The patch adds DT bindings for Exynos DSI Master. DSIM follows rules for DSI bus host bindings [1]. Properties describes its resources: memory, interrupt, clocks, phy, regulators and frequencies of clocks.
Signed-off-by: Andrzej Hajda a.hajda@samsung.com
v2
- added burst and esc clock frequency properties
- add samsung prefix to all frequency props
.../devicetree/bindings/video/exynos_dsim.txt | 53 ++++++++++++++++++++++ 1 file changed, 53 insertions(+) create mode 100644 Documentation/devicetree/bindings/video/exynos_dsim.txt
diff --git a/Documentation/devicetree/bindings/video/exynos_dsim.txt b/Documentation/devicetree/bindings/video/exynos_dsim.txt new file mode 100644 index 0000000..2a49704 --- /dev/null +++ b/Documentation/devicetree/bindings/video/exynos_dsim.txt @@ -0,0 +1,53 @@ +Exynos MIPI DSI Master
+Required properties:
- compatible: "samsung,exynos4210-mipi-dsi"
- reg: physical base address and length of the registers set for the device
- interrupts: should contain DSI interrupt
- clocks: list of clock specifiers, must contain an entry for each required
- entry in clock-names
- clock-names: should include "bus_clk"and "pll_clk" entries
- phys: list of phy specifiers, must contain an entry for each required
- entry in phy-names
- phy-names: should include "dsim" entry
- vddcore-supply: MIPI DSIM Core voltage supply (e.g. 1.1V)
- vddio-supply: MIPI DSIM I/O and PLL voltage supply (e.g. 1.8V)
- samsung,pll-clock-frequency: specifies frequency of the "pll_clk" clock
- samsung,burst-clock-frequency: specifies DSI frequency in high-speed burst
- mode
- samsung,esc-clock-frequency: specifies DSI frequency in escape mode
- #address-cells, #size-cells: should be set respectively to <1> and <0>
- according to DSI host bindings (see MIPI DSI bindings [1])
+Optional properties:
- samsung,power-domain: a phandle to DSIM power domain node
+Child nodes:
- Should contain DSI peripheral nodes (see DSI bindings [1])
+[1]: Documentation/devicetree/bindings/mipi/dsi/mipi-dsi-bus.txt
+Example:
dsi@11C80000 {compatible = "samsung,exynos4210-mipi-dsi";reg = <0x11C80000 0x10000>;interrupts = <0 79 0>;clocks = <&clock 286>, <&clock 143>;clock-names = "bus_clk", "pll_clk";phys = <&mipi_phy 1>;phy-names = "dsim";vddcore-supply = <&vusb_reg>;vddio-supply = <&vmipi_reg>;samsung,power-domain = <&pd_lcd0>;#address-cells = <1>;#size-cells = <0>;samsung,pll-clock-frequency = <24000000>;samsung,burst-clock-frequency = <500000000>;samsung,esc-clock-frequency = <20000000>;Isn't a property indicating cpu or video mode needed for the future even though now DSI driver doesn't support CPU interface yet? Which mode is used would depend on machine.
Mode is determined by panel, ie. by dsi slave.
Regards Andrzej
panel@0 {reg = <0>;...};};-- 1.8.3.2
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