Quoting Sudeep Holla (2018-06-25 10:15:45) > > > On 25/06/18 17:37, Stephen Boyd wrote: > > Quoting Rafael J. Wysocki (2018-06-16 08:50:18) > >> On Fri, Jun 15, 2018 at 7:43 PM, Stephen Boyd <[email protected]> wrote: > >>> > >>> Is this for clk_enable/disable? What about clk_set_rate() or > >>> clk_set_phase()? Is ACPI's AML taking care of that? > >> > >> That's for clk_enable/disable AFAICS. > >> > >> AML doesn't manage device performance states at all. > > > > Alright. We may need to add a better way for device drivers to get > > handles to clk pointers on ACPI firmware so they can change frequencies > > or phase, etc. > > Is there any specific usecase/device needing this in the kernel ? SPI > slaves ?
Mark Brown has been pushing x86 folks to use clk framework for audio drivers in ASoC. I haven't seen other uses besides that really.
