[RFC PATCH v2 03/21] exynos/dsim: add DT bindings (original) (raw)

Andrzej Hajda a.hajda at samsung.com
Wed Feb 12 03:31:10 PST 2014

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 at 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 at 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>; + + panel at 0 { + reg = <0>; + ... + }; + };

1.8.3.2

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