From mboxrd@z Thu Jan 1 00:00:00 1970 From: Srinivas Pandruvada Subject: Re: [PATCH v2] thermal: add sysfs_notify on some attributes Date: Wed, 30 Mar 2016 10:06:31 -0700 Message-ID: <1459357591.13525.62.camel@linux.intel.com> References: <1457979156-10972-1-git-send-email-srikars@nvidia.com> <1458079520.4486.39.camel@intel.com> <20160329013540.GA15615@localhost.localdomain> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: In-Reply-To: <20160329013540.GA15615-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org> Sender: linux-tegra-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Eduardo Valentin Cc: "Zhang, Rui" , "linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" , "srikars-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org" , "linux-pm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" , "linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" , "mlongnecker-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org" List-Id: linux-pm@vger.kernel.org On Mon, 2016-03-28 at 18:35 -0700, Eduardo Valentin wrote: > On Tue, Mar 15, 2016 at 11:08:00PM +0000, Pandruvada, Srinivas wrote: > >=20 > > On Mon, 2016-03-14 at 11:12 -0700, Srikar Srimath Tirumala wrote: > > >=20 > > >=20 [...] > >=20 > The complexity of such communication (or even the current status of > sysfs ABI) starts to reach limit of such channel. We may definitely > consider other means, such as /dev interface, just like IIO does. Yes. Instead of loading netlink I/F, we need to have thermal channel to notify. > > During last LPC we discussed about using IIO for temperature > > threshold > > notifications and I submitted multiple changes for that. Looks like > > we > > also care of trip point changes. So I think we need more > > comprehensive > > mechanism to address this. > >=20 > > May be we should have thermal mini summit during LPC again and > > decide a > > comprehensive plan to address all asynchronous thermal > > notifications. > >=20 > I have created a wiki for LPC 2016 > http://wiki.linuxplumbersconf.org/2016:thermal >=20 > Overall I believe we need to solve the (temperature) sensing in a > more > structured way within the kernel. We have three subsystem that allow > performing temperature sensing. They are different in design and > concept, but still solve similar problems. >=20 > Again, please lets generate enough quorum to run the micro conf. >=20 I am planning to attend. Thanks, Srinivas > BR,=C2=A0 >=20 > Eduardo Valentin