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dt-bindings: clock: at91: new sckc bindings 

Remove the need for child nodes in the sckc binding to be able to remove
dtc warnings and have a more modern binding.

Also document optional properties.

Cc: Rob Herring <robh@kernel.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
This commit is contained in:
Alexandre Belloni 2019-02-19 18:01:54 +01:00 committed by Stephen Boyd
parent 9e98c678c2
commit cc40f6404d
1 changed files with 12 additions and 18 deletions
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30
Documentation/devicetree/bindings/clock/at91-clock.txt
View File

@ -8,29 +8,23 @@ Slow Clock controller:
Required properties:
- compatible : shall be one of the following:
"atmel,at91sam9x5-sckc" or
"atmel,at91sam9x5-sckc",
"atmel,sama5d3-sckc" or
"atmel,sama5d4-sckc":
at91 SCKC (Slow Clock Controller)
This node contains the slow clock definitions.
"atmel,at91sam9x5-clk-slow-osc":
at91 slow oscillator
"atmel,at91sam9x5-clk-slow-rc-osc":
at91 internal slow RC oscillator
- reg : defines the IO memory reserved for the SCKC.
- #size-cells : shall be 0 (reg is used to encode clk id).
- #address-cells : shall be 1 (reg is used to encode clk id).
- #clock-cells : shall be 0.
- clocks : shall be the input parent clock phandle for the clock.
Optional properties:
- atmel,osc-bypass : boolean property. Set this when a clock signal is directly
provided on XIN.
For example:
sckc: sckc@fffffe50 {
compatible = "atmel,sama5d3-pmc";
reg = <0xfffffe50 0x4>
#size-cells = <0>;
#address-cells = <1>;
/* put at91 slow clocks here */
sckc@fffffe50 {
compatible = "atmel,at91sam9x5-sckc";
reg = <0xfffffe50 0x4>;
clocks = <&slow_xtal>;
#clock-cells = <0>;
};
Power Management Controller (PMC):