On Wed, Feb 07, 2018 at 02:18:46PM +0000, Mark Brown wrote: > On Wed, Feb 07, 2018 at 02:37:51PM +0200, Peter De Schrijver wrote: > > On Wed, Feb 07, 2018 at 10:43:51AM +0000, Mark Brown wrote: > > > On Wed, Feb 07, 2018 at 10:47:44AM +0200, Peter De Schrijver wrote: > > > > On Tue, Feb 06, 2018 at 04:35:44PM +0000, Mark Brown wrote: > > > > > On Tue, Feb 06, 2018 at 06:34:02PM +0200, Peter De Schrijver wrote: > > > > > > > Add API to get min/max rail voltage configured from platform for > > > > > > given rails. > > > > > > because... > > > > > of the next patch where this is used to retrieve the minimum rail voltage. > > > > And that in turn is needed for...? > > > To calculate the required voltage for each frequency. > > You're going to have to provide a much better explanation of what this > is doing - right now it seems like an abuse of constraints. Client > drivers can already determine if a particular voltage they want to set > is available via regulator_list_voltage() and so on, that's what > constraints are there to set. It sounds like you're trying to use them > for something else but you're really not explaining your use case > clearly. There is no way to query what voltage I will actually get for a given input voltage. If you read drivers/clk/tegra/cvb. (you did do that right?), you will see that there is a minimum and maximum voltage defined by charaterization which needs to be capped to the regulator generated voltages for those points. Peter. -- To unsubscribe from this list: send the line "unsubscribe linux-tegra" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
