On Wed, Mar 29, 2017 at 02:57:02PM +0800, Icenowy Zheng wrote:
> > > @@ -691,6 +777,12 @@ static int sun4i_gpadc_remove(struct platform_device *pdev)
> > > if (!info->no_irq && IS_ENABLED(CONFIG_THERMAL_OF))
> > > iio_map_array_unregister(indio_dev);
> > >
> > > + if (info->data->gen2_ths) {
> > > + clk_disable_unprepare(info->ths_clk);
> > > + clk_disable_unprepare(info->ths_bus_clk);
> > > + reset_control_deassert(info->reset);
> > > + }
> > > +
> >
> > I'm not really fond of using this boolean as I don't see it being
> > possibly reused for any other SoCs that has a GPADC or THS.
>
> Because you didn't care new SoCs :-)
>
> All SoCs after H3 (A64, H5, R40) uses the same THS architecture with
> H3.
That's not really Quentin's point. His point is that having things
like flags and/or variables to identify various behaviours that might
differ from one SoC to the other usually works better when you want to
support several of them.
For example, replacing the gen2_ths by one variable with the number of
clocks, one with the number of channels, a bool to say it has a reset,
etc. definitely works better for us when Allwinner does some mix and
match between each SoC. And this happen most of the time.
Maxime
--
Maxime Ripard, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com
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