@@ -43,12 +43,20 @@ properties:
ID in its "clocks" phandle cell. See include/dt-bindings/clock/imx8m-clock.h
for the full list of i.MX8M clock IDs.
+ fsl,anatop:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description:
+ The phandle to the anatop module that outputs the PLLs, which,
+ along with the oscillators, are used to generate the clocks for
+ the on-chip peripherals.
+
required:
- compatible
- reg
- clocks
- clock-names
- '#clock-cells'
+ - fsl,anatop
allOf:
- if:
@@ -109,6 +117,7 @@ examples:
<&clk_ext3>, <&clk_ext4>;
clock-names = "osc_32k", "osc_24m", "clk_ext1", "clk_ext2",
"clk_ext3", "clk_ext4";
+ fsl,anatop = <&anatop>;
};
- |
@@ -120,6 +129,7 @@ examples:
<&clk_ext2>, <&clk_ext3>, <&clk_ext4>;
clock-names = "ckil", "osc_25m", "osc_27m", "clk_ext1",
"clk_ext2", "clk_ext3", "clk_ext4";
+ fsl,anatop = <&anatop>;
};
...
Adding the phandle to the anatop node will break the ABI but will allow for a better description of the clock generation hardware, making the dependency of CCM on anatop explicit. Indeed, the CCM receives the PLLs generated by anatop as inputs, which, together with the oscillators, are used to generate the clocks for the on-chip peripherals. By doing this, it will also be possible to generalize the CCM driver code, which will no longer require the platform's compatible string to retrieve the anatop device node. Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com> --- Changes in v7: - New .../devicetree/bindings/clock/imx8m-clock.yaml | 10 ++++++++++ 1 file changed, 10 insertions(+)