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Date: Thu, 25 Oct 2012 14:22:43 +0200 From: Davide Ciminaghi <ciminaghi@...dd.com> To: Mark Brown <broonie@...nsource.wolfsonmicro.com> Cc: sameo@...ux.intel.com, rubini@...dd.com, giancarlo.asnaghi@...com, linux-kernel@...r.kernel.org Subject: Re: [PATCH 02/10] drivers/mfd/sta2x11-mfd: add regmap support On Wed, Oct 24, 2012 at 01:49:55PM +0100, Mark Brown wrote: > On Wed, Oct 24, 2012 at 02:31:18PM +0200, Davide Ciminaghi wrote: > > On Tue, Oct 23, 2012 at 06:18:38PM +0100, Mark Brown wrote: > ... > > > My opinion is that passing function pointers for > > readable/writeable/precious/volatile methods could still be useful when > > registers' features or access properties can change at runtime (for instance a > > This is essential for sparse register maps, really. yes, I realized that when updating sta2x11-mfd to the new table driven approach yesterday. One more thing I found is that you can have the case in which, for instance, almost all readable registers are also writeable. To address such a case, I added the possibility for a user to specify ranges for which a given property is false, so that, in the above example, you first check whether a given register belongs to the non-writeable region and then maybe skip the other checks. I'm sending a regmap patch in few minutes. Thanks and regards Davide -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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