Hi, ChiYuan Huang <u0084500@xxxxxxxxx> 於 2021年10月6日 週三 下午4:47寫道： > > Hi, Mark: > ChiYuan Huang <u0084500@xxxxxxxxx> 於 2021年10月5日 週二 下午8:39寫道： > > > > Mark Brown <broonie@xxxxxxxxxx> 於 2021年10月5日 週二 下午8:29寫道： > > > > > > On Tue, Oct 05, 2021 at 08:25:43PM +0800, ChiYuan Huang wrote: > > > > Mark Brown <broonie@xxxxxxxxxx> 於 2021年10月5日 週二 下午7:49寫道： > > > > > On Tue, Oct 05, 2021 at 09:16:54AM +0800, cy_huang wrote: > > > > > > > > > + richtek,use-dvdd-1p8v: > > > > > > + description: Indicate DVDD 1P8V is used, default for 3P3V or 5V design > > > > > > + type: boolean > > > > > > > > I would expect this to be done through the regulator bindings, they > > > > > would allow the driver to query the supply voltage. > > > > > > > It's more like as the I/O pad voltage. > > > > Must be the same as I2C and I2S signal high level. > > > > It depends on the application SOC design. > > > > From my understanding, not all application SOC I/O voltage uses > > > > regulator interface. > > > > > > It doesn't really matter what the SoC is doing here, you can always add > > > regulator support to your device - you'd be requesting the supplies to > > > your device, if the SoC doesn't request the supplies that go to it that > > > doesn't really make a difference to what your driver does. > > > > > > Please don't take things off-list unless there is a really strong reason > > > to do so. Sending things to the list ensures that everyone gets a > > > chance to read and comment on things. > > > After contacting our HW RD, to support DVDD 1.8V not just SW config, > also HW connections. > To get only DVDD supply voltage is not enough to meet the HW design. > The property seems indeed and need to be used by user's HW connection. > > Can this property to be kept? After thinking, This property name may be improper. I think this change depends on HW external circuit for lowv application. Currently, I'm modifying the V3 change, this property name also affect the property parsing code change. May I directly change the name to 'richtek,dvdd-lowv-application' and submit the patch v3? Any comment is appreciated. > > Sorry, my fault. > > I just noticed the mail not reply all. Loop all again.
