> On Monday, January 09, 2012 12:41 PM, Mark Brown wrote > > In my design, the voltage vary from 900mV to the 1300mV in increment of > > 50mV. In this case, the voltage change request is 900, 950, 1000, 1050, > > 1100, 1150, 1200, 1250, 1300. > > I would like to have entry like > > 900-950->vsel0 > > 950-1000>vsel1, > > 1000-1050->vsel2 > > 1050-1100->vsel3 > > 1100-1150->vsel0 > > 1150-1200->vsel1 > > 1200-1250->vsel2 > > 1250->1300->vsel3 > > Why? I'm not sure I understand this. You're asking the regulator to > output ranges not voltages and you're setting multiple overlapping > ranges for each VSEL. If I fix the voltage with each VSEL then only 4 voltages will be possible but I want to have more than 4 different output. How do I achieve this? > > > Based on voltage increment requirements for a given application, this > > table can be tune more. Now if client request for voltage setting for > > range of 1000-1050, I will select the VSET1 for configuration, similarly > > for 1100-1150, VSET0 will be the configuration register. > > This just seems like it makes the driver configuration much more > complex and restricts the ability of the system to adapt itself to > what's happening at runtime. > > What I'd expect to see is nothing but the GPIOs and their default state > (since sadly we can't read back from output GPIOs with gpiolib) being > specified. I did not understand it correctly. Can you please elaborate how can we pass the voltage with corresponding vsel? I want to have around 10 different voltages at output. -- 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
