Re: [PATCH 3/6] soc/tegra: pmc: Add support for IO pads power state and voltage

From: Laxman Dewangan
Date: Tue May 03 2016 - 09:19:31 EST



On Tuesday 03 May 2016 06:42 PM, Jon Hunter wrote:
On 03/05/16 13:48, Laxman Dewangan wrote:
On Tuesday 03 May 2016 06:25 PM, Jon Hunter wrote:
Currently SOR driver is using the tegra_io_rail_power_off/on() APIs.
Once the proper interface available then I will move sor driver to use
new method and then we can full get rid of older APIs and macros.

Till that, we need to have this.
I prefer it is done before this series. In other words, if we need a
proper enum for the rail/pad IDs then add one and convert any existing
drivers over to use any new APIs first.
But the converting to new API can be done after this patch only.
Yes but before you add the pinctrl driver. May be you should separate
the two.

My point is that any follow-up series to this, would have to touch the
pmc and the sor driver. So why not make the changes for the pmc and sor
now, and once in place then add the pinctrl driver?

I will be happy on this approach also. I added pincontrol driver for following purpose:
- To show how new APIs used. This will help on understanding of need and whole as a design.
- To get reviewed the whole design/method.
- To get accepted the pmc changes on this cycle so that if possible, we can have pincntrl driver in next cycle to avoid cross subsystem approach.