From mboxrd@z Thu Jan 1 00:00:00 1970 From: carlo@caione.org (Carlo Caione) Date: Wed, 22 Oct 2014 11:52:40 +0200 Subject: [PATCH v3 1/3] ARM: meson: reset: Add reset controller for MesonX SoCs In-Reply-To: <1413819611.3107.6.camel@pengutronix.de> References: <1413803985-8363-1-git-send-email-carlo@caione.org> <1413803985-8363-2-git-send-email-carlo@caione.org> <1413819611.3107.6.camel@pengutronix.de> Message-ID: <20141022095240.GA22342@carlo-MacBookPro> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On lun, ott 20, 2014 at 05:40:11 +0200, Philipp Zabel wrote: > Am Montag, den 20.10.2014, 13:19 +0200 schrieb Carlo Caione: > > Hi Philipp, > > from the documentation and the sources I have, it seems that in the register > > together with the bits for resetting the ICs there are also bits for turning > > the ICs on and off. I really wanted to avoid create a new of_xlate function > > just to map the reset IDs to the correct bit in the register so I left the > > nr_resets to BITS_PER_LONG and I'm using the default of_xlate. > > This way I can also avoid to use obscure reset IDs to be remapped when I can > > use directly the bit number in the register as reset ID. > > I'm fine with reusing of_reset_simple_xlate and using the bit offsets as > reset control number. Do you already know what abstraction you'll choose > for the IC enable bits? (Are those clock gates, or maybe power domains?) > Hopefully the documentation you obtained will help to decide. Those are clock gates actually. Arnd suggested to add a driver for the entire block (resets and clock gates) so probably I need to dig deeper in the CCF. -- Carlo Caione