[PATCH v5 2/3] clk: meson: add DT documentation for emmc clock controller
From: sboyd@kernel.org (Stephen Boyd)
Date: 2018-10-18 17:08:08
Also in:
linux-amlogic, linux-clk, lkml
Quoting Jianxin Pan (2018-10-17 22:07:24)
quoted hunk ↗ jump to hunk
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 0000000..9e6d343 --- /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,gx-mmc-clkc" + "amlogic,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 :
The example only has one node. Can you add two nodes?
+- compatible: "amlogic,axg-mmc-clkc", "syscon".
+- reg: base address and size of the MMC control register space.
+
+Example: Clock controller node:
+
+sd_mmc_c_clkc: clock-controller at 7000 {
+ compatible = "amlogic,axg-mmc-clkc", "syscon";
+ reg = <0x0 0x7000 0x0 0x4>;
+ #clock-cells = <1>;
+
+ clock-names = "clkin0", "clkin1";
+ clocks = <&clkc CLKID_SD_MMC_C_CLK0>,
+ <&clkc CLKID_FCLK_DIV2>;
+};