6.6-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 a032b921bdeba2274866daafc8e791edd609eb13 ]
'adi,adc-dev' is now deprecated and must not be used anymore. Hence, also remove it from being required.
The reason why it's being deprecated is because the axi-adc CORE is now an IIO service provider hardware (IIO backends) for consumers to make use of. Before, the logic with 'adi,adc-dev' was the opposite (it was kind of consumer referencing other nodes/devices) and that proved to be wrong and to not scale.
Now, IIO consumers of this hardware are expected to reference it using the io-backends property. Hence, the new '#io-backend-cells' is being added so the device is easily identified as a provider.
Reviewed-by: Rob Herring robh@kernel.org Signed-off-by: Nuno Sa nuno.sa@analog.com Link: https://lore.kernel.org/r/20240210-iio-backend-v11-2-f5242a5fb42a@analog.com Signed-off-by: Jonathan Cameron Jonathan.Cameron@huawei.com Stable-dep-of: 19fb11d7220b ("dt-bindings: adc: axi-adc: add clocks property") Signed-off-by: Sasha Levin sashal@kernel.org --- .../devicetree/bindings/iio/adc/adi,axi-adc.yaml | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/Documentation/devicetree/bindings/iio/adc/adi,axi-adc.yaml b/Documentation/devicetree/bindings/iio/adc/adi,axi-adc.yaml index 9996dd93f84b2..3d49d21ad33df 100644 --- a/Documentation/devicetree/bindings/iio/adc/adi,axi-adc.yaml +++ b/Documentation/devicetree/bindings/iio/adc/adi,axi-adc.yaml @@ -39,12 +39,15 @@ properties: $ref: /schemas/types.yaml#/definitions/phandle description: A reference to a the actual ADC to which this FPGA ADC interfaces to. + deprecated: true + + '#io-backend-cells': + const: 0
required: - compatible - dmas - reg - - adi,adc-dev
additionalProperties: false
@@ -55,7 +58,6 @@ examples: reg = <0x44a00000 0x10000>; dmas = <&rx_dma 0>; dma-names = "rx"; - - adi,adc-dev = <&spi_adc>; + #io-backend-cells = <0>; }; ...