Documentation: dt: xgene: Add PMD clock binding

Add APM X-Gene clock binding documentation for PMD clock.

Signed-off-by: Hoan Tran <hotran@apm.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>

diff --git a/Documentation/devicetree/bindings/clock/xgene.txt b/Documentation/devicetree/bindings/clock/xgene.txt
index 82f9638..8233e77 100644 (file)
--- a/Documentation/devicetree/bindings/clock/xgene.txt
+++ b/Documentation/devicetree/bindings/clock/xgene.txt
@@ -8,6 +8,7 @@ Required properties:
 - compatible : shall be one of the following:
        "apm,xgene-socpll-clock" - for a X-Gene SoC PLL clock
        "apm,xgene-pcppll-clock" - for a X-Gene PCP PLL clock
+       "apm,xgene-pmd-clock" - for a X-Gene PMD clock
        "apm,xgene-device-clock" - for a X-Gene device clock
        "apm,xgene-socpll-v2-clock" - for a X-Gene SoC PLL v2 clock
        "apm,xgene-pcppll-v2-clock" - for a X-Gene PCP PLL v2 clock
@@ -22,6 +23,15 @@ Required properties for SoC or PCP PLL clocks:
 Optional properties for PLL clocks:
 - clock-names : shall be the name of the PLL. If missing, use the device name.
 
+Required properties for PMD clocks:
+- reg : shall be the physical register address for the pmd clock.
+- clocks : shall be the input parent clock phandle for the clock.
+- #clock-cells : shall be set to 1.
+- clock-output-names : shall be the name of the clock referenced by derive
+  clock.
+Optional properties for PLL clocks:
+- clock-names : shall be the name of the clock. If missing, use the device name.
+
 Required properties for device clocks:
 - reg : shall be a list of address and length pairs describing the CSR
          reset and/or the divider. Either may be omitted, but at least
@@ -59,6 +69,14 @@ For example:
                type = <0>;
        };
 
+       pmd0clk: pmd0clk@7e200200 {
+               compatible = "apm,xgene-pmd-clock";
+               #clock-cells = <1>;
+               clocks = <&pmdpll 0>;
+               reg = <0x0 0x7e200200 0x0 0x10>;
+               clock-output-names = "pmd0clk";
+       };
+
        socpll: socpll@17000120 {
                compatible = "apm,xgene-socpll-clock";
                #clock-cells = <1>;