Thread (5 messages) 5 messages, 3 authors, 2021-01-12

Re: [PATCH 2/2] dt-bindings: clock: adi,axi-clkgen: add Zynq & ZynqMP compatible strings

From: Rob Herring <robh@kernel.org>
Date: 2021-01-03 16:30:47
Also in: linux-clk, linux-fpga, lkml

On Mon, Dec 21, 2020 at 04:42:24PM +0200, Alexandru Ardelean wrote:
The axi-clkgen driver now supports ZynqMP (UltraScale) as well, however the
driver needs to use different PFD & VCO limits.

For ZynqMP, these needs to be selected by using the
'adi,zynqmp-axi-clkgen-2.00.a' string. For consistency a
'adi,zynq-axi-clkgen-2.00.a' has been added which should behave as the
original compatible string (i.e. 'adi,axi-clkgen-2.00.a').
Version numbers and SoC are kind of rendundant.

Does 'adi,axi-clkgen-2.00.a' apply to anything other than Zynq? If not, 
you don't really need a new string. If so, you really want it to be:

compatible = "adi,zynq-axi-clkgen-2.00.a", "adi,axi-clkgen-2.00.a";

To be forwards and backwards compatible.
quoted hunk ↗ jump to hunk
Signed-off-by: Alexandru Ardelean <redacted>
---
 Documentation/devicetree/bindings/clock/adi,axi-clkgen.yaml | 2 ++
 1 file changed, 2 insertions(+)
diff --git a/Documentation/devicetree/bindings/clock/adi,axi-clkgen.yaml b/Documentation/devicetree/bindings/clock/adi,axi-clkgen.yaml
index 0d06387184d6..398954ec6767 100644
--- a/Documentation/devicetree/bindings/clock/adi,axi-clkgen.yaml
+++ b/Documentation/devicetree/bindings/clock/adi,axi-clkgen.yaml
@@ -20,6 +20,8 @@ properties:
   compatible:
     enum:
       - adi,axi-clkgen-2.00.a
+      - adi,zynq-axi-clkgen-2.00.a
+      - adi,zynqmp-axi-clkgen-2.00.a
 
   clocks:
     description:
-- 
2.17.1
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