Document the MMC sub clock controller driver, the potential consumer of this driver is MMC or NAND.
Signed-off-by: Yixun Lan <[email protected]> --- .../bindings/clock/amlogic,mmc-clkc.txt | 31 +++++++++++++++++++ 1 file changed, 31 insertions(+) create mode 100644 Documentation/devicetree/bindings/clock/amlogic,mmc-clkc.txt diff --git a/Documentation/devicetree/bindings/clock/amlogic,mmc-clkc.txt b/Documentation/devicetree/bindings/clock/amlogic,mmc-clkc.txt new file mode 100644 index 000000000000..ff6b4bf3ecf9 --- /dev/null +++ b/Documentation/devicetree/bindings/clock/amlogic,mmc-clkc.txt @@ -0,0 +1,31 @@ +* Amlogic MMC Sub Clock Controller Driver + +The Amlogic MMC clock controller generates and supplies clock to support +MMC and NAND controller + +Required Properties: + +- compatible: should be: + "amlogic,meson-gx-mmc-clkc" + "amlogic,meson-axg-mmc-clkc" + +- #clock-cells: should be 1. +- clocks: phandles to clocks corresponding to the clock-names property +- clock-names: list of parent clock names + - "clkin0", "clkin1" + +Parent node should have the following properties : +- compatible: "syscon", "simple-mfd, and "amlogic,meson-axg-mmc-clkc" +- reg: base address and size of the MMC control register space. + +Example: Clock controller node: + +sd_mmc_c_clkc: clock-controller@7000 { + compatible = "amlogic,mmc-clkc", "syscon", "simple-mfd"; + reg = <0x0 0x7000 0x0 0x4>; + #clock-cells = <1>; + + clock-names = "clkin0", "clkin1"; + clocks = <&clkc CLKID_SD_MMC_C_CLK0>, + <&clkc CLKID_FCLK_DIV2>; +}; -- 2.18.0
