On Thu, Jan 09, 2014 at 08:55 +0100, Sascha Hauer wrote: > > [ ... ] > > We have the situation here that a single bit controls two clocks. As > Shawn mentioned just using two gates on the same bit doesn't work > properly. Do we need a new basic clock type or expand the common gate > code somehow? > This situation happens from time to time and I haven't seen a solution > for this. You may want to lookup the following message: Date: Tue, 23 Jul 2013 15:14:06 +0200 From: Gerhard Sittig <gsi@xxxxxxx> To: linuxppc-dev@xxxxxxxxxxxxxxxx, Anatolij Gustschin <agust@xxxxxxx>, Mike Turquette <mturquette@xxxxxxxxxx>, linux-arm-kernel@xxxxxxxxxxxxxxxxxxx, devicetree@xxxxxxxxxxxxxxx Cc: [ ... ] Subject: Re: [PATCH v3 17/31] clk: mpc512x: introduce COMMON_CLK for MPC512x http://lists.infradead.org/pipermail/linux-arm-kernel/2013-July/185687.html The specific situation was for MS-CAN on PowerPC, but it inspired my outlining an approach to "shared clock gates". See an example implementation towards the end of the message with both the clk-gate.c extension, as well as rather generic example use. My approach turned out to not be needed, but it might serve as a starting point for you. You'd have to add support for static declaration though, but this should be straight forward. virtually yours Gerhard Sittig -- DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr. 5, D-82194 Groebenzell, Germany Phone: +49-8142-66989-0 Fax: +49-8142-66989-80 Email: office@xxxxxxx -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
