From mboxrd@z Thu Jan 1 00:00:00 1970 From: Pavel Machek Subject: [PATCHv2] ti-soc-thermal: request temperature periodically if hw can't do that itself Date: Sun, 18 Jan 2015 21:24:47 +0100 Message-ID: <20150118202447.GA29014@amd> References: <20150103114632.GA21883@amd> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <20150103114632.GA21883@amd> Sender: linux-pm-owner@vger.kernel.org To: pali.rohar@gmail.com, sre@debian.org, sre@ring0.de, kernel list , linux-arm-kernel , linux-omap@vger.kernel.org, tony@atomide.com, khilman@kernel.org, aaro.koskinen@iki.fi, ivo.g.dimitrov.75@gmail.com, edubezval@gmail.com, rui.zhang@intel.com, linux-pm@vger.kernel.org List-Id: linux-omap@vger.kernel.org When periodic mode is not enabled, it is neccessary to force reads. Signed-off-by: Pavel Machek diff --git a/drivers/thermal/ti-soc-thermal/ti-bandgap.c b/drivers/thermal/ti-soc-thermal/ti-bandgap.c index 634b6ce..2fde78c 100644 --- a/drivers/thermal/ti-soc-thermal/ti-bandgap.c +++ b/drivers/thermal/ti-soc-thermal/ti-bandgap.c @@ -43,6 +43,8 @@ #include "ti-bandgap.h" +static int ti_bandgap_force_single_read(struct ti_bandgap *bgp, int id); + /*** Helper functions to access registers and their bitfields ***/ /** @@ -852,14 +831,21 @@ int ti_bandgap_read_temperature(struct ti_bandgap *bgp, int id, if (ret) return ret; + if (!TI_BANDGAP_HAS(bgp, MODE_CONFIG)) { + ret = ti_bandgap_force_single_read(bgp, id); + if (ret) + return ret; + } + spin_lock(&bgp->lock); temp = ti_bandgap_read_temp(bgp, id); -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html