From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alexandre Belloni Subject: Re: [PATCH 1/4] rtc: isl1208: Fix unintended clear of SR bits Date: Thu, 15 Feb 2018 09:30:28 +0100 Message-ID: <20180215083028.GH8219@piout.net> References: <20180123121801.4214-1-m.grzeschik@pengutronix.de> <20180123121801.4214-2-m.grzeschik@pengutronix.de> <20180214202610.GD8219@piout.net> <1518679666.5448.4.camel@diehl.com> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit Return-path: Content-Disposition: inline In-Reply-To: <1518679666.5448.4.camel-85mDkmTllUAAvxtiuMwx3w@public.gmane.org> Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Denis OSTERLAND Cc: "m.grzeschik-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org" , "linux-0h96xk9xTtrk1uMJSBkQmQ@public.gmane.org" , "linux-rtc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" , "a.zummo-BfzFCNDTiLLj+vYz1yj4TQ@public.gmane.org" , "linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" , "jdelvare-IBi9RG/b67k@public.gmane.org" , "devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" , "kernel-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org" List-Id: devicetree@vger.kernel.org On 15/02/2018 at 07:27:47 +0000, Denis OSTERLAND wrote: > Am Mittwoch, den 14.02.2018, 21:26 +0100 schrieb Alexandre Belloni: > > On 23/01/2018 at 13:17:58 +0100, Michael Grzeschik wrote: > > > > > > From: Denis Osterland > > > > > > After successful > > > sr = isl1208_i2c_set_regs(client, 0, regs, ISL1208_RTC_SECTION_LEN); > > > sr will be 0. > > > As a result > > > sr = i2c_smbus_write_byte_data(client, ISL1208_REG_SR, > > > sr & ~ISL1208_REG_SR_WRTC); > > > is equal to > > > sr = i2c_smbus_write_byte_data(client, ISL1208_REG_SR, 0); > > > which clears all flags in SR. > > > > > > Add an additional read of SR, to have value of SR in sr again. > > > > > > Signed-off-by: Denis Osterland > > > Signed-off-by: Michael Grzeschik > > > --- > > >  drivers/rtc/rtc-isl1208.c | 5 +++++ > > >  1 file changed, 5 insertions(+) > > > > > Applied, thanks. > > > You are welcome. > > One question, shall we avoid resent this patch in v2 of this series? > I ask because we are pretty far with the suggested changes. > No need to resend. If necessary, you can base v2 on top of rtc-next. -- Alexandre Belloni, Bootlin (formerly Free Electrons) Embedded Linux and Kernel engineering http://bootlin.com -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html