From mboxrd@z Thu Jan 1 00:00:00 1970 From: swarren@wwwdotorg.org (Stephen Warren) Date: Mon, 19 Mar 2012 16:06:51 -0600 Subject: [PATCH 1/4 v7] pinctrl: introduce generic pin config In-Reply-To: <1331586859-15619-1-git-send-email-linus.walleij@stericsson.com> References: <1331586859-15619-1-git-send-email-linus.walleij@stericsson.com> Message-ID: <4F67ADFB.6000608@wwwdotorg.org> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On 03/12/2012 03:14 PM, Linus Walleij wrote: > From: Linus Walleij > > This is a split-off from the earlier patch set which adds generic > pin configuration for the pin controllers that want it. Since > we may have a system with mixed generic and custom pin controllers, > we pass a boolean in the pin controller ops vtable to indicate > if it is generic. > > ChangeLog v1->v5: > - Follow parent patch versioning number system. > - Document the semantic meaning of return values from pin config > get functions, so we can iterate over pins and check their > properties from debugfs as part of the generic config code. > - Use proper cast functions in the generic debugfs pin config > file. > - Expand generic config to optionally cover groups too. > ChangeLog v5->v6: > - Update to match underlying changes. > ChangeLog v6->v7: > - Drop DRIVE_OFF parameter, use bias high impedance for this > - Delete argument for drive modes push-pull, od and os. These > are now just state transitions. > - Delete slew rate rising/falling due to discussions on on > proper semantics > - Drop config wakeup, struct irq_chip does this for now, add > back if need be. > - Set PIN_CONFIG_END to 0x7fff making room for custom config > parameters from 0x8000 and up. > - Prefix accessor functions with pinconf_ I think this is probably workable. I'm still not totally convinced that it'll really turn out to be that "generic", but I guess we may as well try it and see, so: Acked-by: Stephen Warren