On Tue, 2023-11-28 at 10:33 +0100, Krzysztof Kozlowski wrote: > On 27/11/2023 16:55, Nuno Sa via B4 Relay wrote: > > From: Michael Hennerich <michael.hennerich@xxxxxxxxxx> > > > > Subject: drop ".yaml" Will do... > > > This patch adds support for an external amplifier to be connected in a > > Please do not use "This commit/patch", but imperative mood. See longer > explanation here: > https://elixir.bootlin.com/linux/v5.17.1/source/Documentation/process/submitting-patches.rst#L95 ack... > > > gain of two configuration. > > > > Signed-off-by: Michael Hennerich <michael.hennerich@xxxxxxxxxx> > > Signed-off-by: Nuno Sa <nuno.sa@xxxxxxxxxx> > > --- > > Documentation/devicetree/bindings/iio/dac/adi,ad5791.yaml | 5 +++++ > > 1 file changed, 5 insertions(+) > > > > diff --git a/Documentation/devicetree/bindings/iio/dac/adi,ad5791.yaml > > b/Documentation/devicetree/bindings/iio/dac/adi,ad5791.yaml > > index 3a84739736f6..c81285d84db7 100644 > > --- a/Documentation/devicetree/bindings/iio/dac/adi,ad5791.yaml > > +++ b/Documentation/devicetree/bindings/iio/dac/adi,ad5791.yaml > > @@ -26,6 +26,11 @@ properties: > > vdd-supply: true > > vss-supply: true > > > > + adi,rbuf-gain2-en: > > + description: Specify to allow an external amplifier to be connected in > > a > > + gain of two configuration. > > I don't understand this. Without this property external amplifier is not > allowed to be connected? This sounds like some policy, but should rather > focus on hardware. > Well, this really translates in a different configuration in the device. If this is set then the device is configured to allow an external amplifier to be connected in a gain of two configuration which depends on the HW setup you want the chip to be. The description already states pretty much what the datasheet says. So while I understand it's a fair question from you (you don't have the time to check all datasheets for reviews you do), I'm not sure there's much more to add into the description of the property. - Nuno Sá
