5.4-stable review patch. If anyone has any objections, please let me know.
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From: Nuno Sa nuno.sa@analog.com
[ Upstream commit 47f3f5a82a31527e027929c5cec3dd1ef5ef30f5 ]
In order to access the registers of the HW, we need to make sure that the AXI bus clock is enabled. Hence let's increase the number of clocks by one and add clock-names to differentiate between parent clocks and the bus clock.
Fixes: 0e646c52cf0e ("clk: Add axi-clkgen driver") Signed-off-by: Nuno Sa nuno.sa@analog.com Link: https://lore.kernel.org/r/20241029-axi-clkgen-fix-axiclk-v2-1-bc5e0733ad76@a... Reviewed-by: Conor Dooley conor.dooley@microchip.com Signed-off-by: Stephen Boyd sboyd@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- .../bindings/clock/adi,axi-clkgen.yaml | 22 +++++++++++++++---- 1 file changed, 18 insertions(+), 4 deletions(-)
diff --git a/Documentation/devicetree/bindings/clock/adi,axi-clkgen.yaml b/Documentation/devicetree/bindings/clock/adi,axi-clkgen.yaml index 0d06387184d68..bb2eec3021a09 100644 --- a/Documentation/devicetree/bindings/clock/adi,axi-clkgen.yaml +++ b/Documentation/devicetree/bindings/clock/adi,axi-clkgen.yaml @@ -25,9 +25,21 @@ properties: description: Specifies the reference clock(s) from which the output frequency is derived. This must either reference one clock if only the first clock - input is connected or two if both clock inputs are connected. - minItems: 1 - maxItems: 2 + input is connected or two if both clock inputs are connected. The last + clock is the AXI bus clock that needs to be enabled so we can access the + core registers. + minItems: 2 + maxItems: 3 + + clock-names: + oneOf: + - items: + - const: clkin1 + - const: s_axi_aclk + - items: + - const: clkin1 + - const: clkin2 + - const: s_axi_aclk
'#clock-cells': const: 0 @@ -39,6 +51,7 @@ required: - compatible - reg - clocks + - clock-names - '#clock-cells'
additionalProperties: false @@ -49,5 +62,6 @@ examples: compatible = "adi,axi-clkgen-2.00.a"; #clock-cells = <0>; reg = <0xff000000 0x1000>; - clocks = <&osc 1>; + clocks = <&osc 1>, <&clkc 15>; + clock-names = "clkin1", "s_axi_aclk"; };