From: Matti Vaittinen Date: Wed, 2 Apr 2025 06:44:36 +0000 (+0300) Subject: dt-bindings: Add ROHM BD7970x variants X-Git-Tag: v6.16-rc1~30^2~4^2~173 X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=04f0bc81d6017b9ec80fbe0e00fe9ee02cfd42c4;p=linux-block.git dt-bindings: Add ROHM BD7970x variants The ROHM BD79700, BD79701 and BD79702 are subsets of the BD79703 DAC. The main difference is the number of the channels. BD79703 has 6 channels. The BD79702 has 4, BD79701 3 and BD79700 2 channels. Additionally, the BD79700 and BD79701 do not have separate Vfs pin but use the Vcc also for the full-scale voltage. Add properties for the BD79700, BD79701 and BD79702. Signed-off-by: Matti Vaittinen Acked-by: Conor Dooley Link: https://patch.msgid.link/0a114565e4de52bf8f98c4f9d17943e5148b0112.1743576022.git.mazziesaccount@gmail.com Signed-off-by: Jonathan Cameron --- diff --git a/Documentation/devicetree/bindings/iio/dac/rohm,bd79703.yaml b/Documentation/devicetree/bindings/iio/dac/rohm,bd79703.yaml index 188b00333dfb..c00fa50e42e8 100644 --- a/Documentation/devicetree/bindings/iio/dac/rohm,bd79703.yaml +++ b/Documentation/devicetree/bindings/iio/dac/rohm,bd79703.yaml @@ -5,19 +5,26 @@ $id: http://devicetree.org/schemas/iio/dac/rohm,bd79703.yaml# $schema: http://devicetree.org/meta-schemas/core.yaml# -title: ROHM BD79703 DAC device driver +title: ROHM BD79700, BD79701, BD79702 and BD79703 DACs maintainers: - Matti Vaittinen description: | - The ROHM BD79703 is a 6 channel, 8-bit DAC. - Datasheet can be found here: + The ROHM BD7970[0,1,2,3] are 8-bit DACs. The BD79700 has 2 channels, + BD79701 3 channels, BD79702 4 channels and BD79703 has 6 channels. + Datasheets for BD79702 and BD79703 can be found from https://fscdn.rohm.com/en/products/databook/datasheet/ic/data_converter/dac/bd79702fv-lb_bd79703fv-lb-e.pdf + and for the BD79700 and the BD79701 from + https://fscdn.rohm.com/en/products/databook/datasheet/ic/data_converter/dac/bd79700fvm-lb_bd79701fvm-lb-e.pdf properties: compatible: - const: rohm,bd79703 + enum: + - rohm,bd79700 + - rohm,bd79701 + - rohm,bd79702 + - rohm,bd79703 reg: maxItems: 1 @@ -27,19 +34,31 @@ properties: vfs-supply: description: - The regulator to use as a full scale voltage. The voltage should be between 2.7V .. VCC + The regulator to use as a full scale voltage. The voltage should be + between 2.7V .. VCC. Not present on BD79700 and BD79701. vcc-supply: description: - The regulator supplying the operating voltage. Should be between 2.7V ... 5.5V + The regulator supplying the operating voltage. Should be between + 2.7V ... 5.5V. Is used also as a Vfs on BD79700 and BD79701. required: - compatible - reg - spi-max-frequency - - vfs-supply - vcc-supply +if: + properties: + compatible: + contains: + enum: + - rohm,bd79702 + - rohm,bd79703 +then: + required: + - vfs-supply + allOf: - $ref: /schemas/spi/spi-peripheral-props.yaml#