On 29/04/14 19:19, Tomi Valkeinen wrote: > On 29/04/14 18:05, Tony Lindgren wrote: > >>> omap4_padconf_global is a syscon node, not pinctrl. As syscon just gives >>> a raw regmap to its memory area, the driver needs to know about the OMAP >>> control registers to use it. >> >> That would be probably best set up the same way we have already set up >> for example omap4_padconf_global: tisyscon@4a1005a0. Then drivers can >> access it using regmap, see how drivers/regulator/pbias-regulator.c >> sets up the pbias regulator with regmap for MMC. > > Right, but it means that the driver will contain platform specific code > for all the omap revisions it supports. Isn't that wrong? > > I already have a patch for DSI that uses the syscon-method, and it works > fine. But it's quite ugly, imo, to fiddle with the OMAP control > registers in a driver. Oh, also, if I do that, I need to know both the SoC version and the DSS version in the driver. Tomi
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