Messages in this thread | | | Date | Tue, 20 Jan 2015 16:05:01 +0100 | From | Alexandre Belloni <> | Subject | Re: [PATCH v3 2/8] mfd: Add atmel-st driver |
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On 20/01/2015 at 09:47:39 +0000, Lee Jones wrote : > > > This driver looks pretty pointless. Why can't you request the sysconf > > > registers from within the drivers themselves? > > > > > > > How would you probe the watchdog driver then? Would you had the > > "atmel,at91rm9200-st" compatible there? > > > > At some point in time, we should add the reset driver, would you also > > match it on "atmel,at91rm9200-st"? > > > > I'm fine with that as this allows to avoid the mfd driver. > > I'm sorry, I don't follow. Why can't each driver have their own > compatible strings? >
The same IP provides a clocksource, a watchdog and is also the reset controller. I think that the DT guidelines requires that the DT describes the hardware and so use one compatible for that IP;
-- Alexandre Belloni, Free Electrons Embedded Linux, Kernel and Android engineering http://free-electrons.com
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