From mboxrd@z Thu Jan 1 00:00:00 1970 From: Paul Mundt Date: Sun, 04 Mar 2012 21:03:04 +0000 Subject: Re: [PATCH] sh_tmu / PM: Prevent power from being removed from TMU devices Message-Id: <20120304210303.GB11325@linux-sh.org> List-Id: References: <201203030041.30244.rjw@sisk.pl> In-Reply-To: <201203030041.30244.rjw@sisk.pl> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-sh@vger.kernel.org On Sat, Mar 03, 2012 at 12:41:30AM +0100, Rafael J. Wysocki wrote: > From: Rafael J. Wysocki > > To prevent TMU devices from losing power define a fake "always busy" > suspend callback in the sh_tmu driver that will cause all attempts to > suspend the system to fail. In addition to that, make the driver > change the runtime PM settings of TMU devices so that they appear to > be always "active" and make SH7372 add them to the A4R domain (where > they physically belong), to make the PM domains core take those > settings into consideration when attempting to remove power from A4R. > > Proprer power management support will be added to the sh_tmu driver > in the future. > > Signed-off-by: Rafael J. Wysocki Presumably we also need the same for the MTU2 and CMT drivers?