From: Dan Carpenter <dan.carpenter@oracle.com>
To: "Ardelean, Alexandru" <Alex.Ardelean@analog.com>
Cc: "mark.rutland@arm.com" <mark.rutland@arm.com>,
"devel@driverdev.osuosl.org" <devel@driverdev.osuosl.org>,
"lars@metafoo.de" <lars@metafoo.de>,
"Hennerich, Michael" <Michael.Hennerich@analog.com>,
"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
"linux-iio@vger.kernel.org" <linux-iio@vger.kernel.org>,
"gregkh@linuxfoundation.org" <gregkh@linuxfoundation.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"kernel-usp@googlegroups.com" <kernel-usp@googlegroups.com>,
"robh+dt@kernel.org" <robh+dt@kernel.org>,
"giuliano.belinassi@usp.br" <giuliano.belinassi@usp.br>,
"pmeerw@pmeerw.net" <pmeerw@pmeerw.net>,
"knaack.h@gmx.de" <knaack.h@gmx.de>,
"renatogeh@gmail.com" <renatogeh@gmail.com>,
"Popa, Stefan Serban" <StefanSerban.Popa@analog.com>,
"jic23@kernel.org" <jic23@kernel.org>
Subject: Re: [PATCH v4 1/9] staging: iio: ad7780: add gain & filter gpio support
Date: Fri, 1 Mar 2019 10:42:02 +0300 [thread overview]
Message-ID: <20190301074024.GA9828@kadam> (raw)
In-Reply-To: <4f945f058c8536a2731c4de3e0b9227a41cd2891.camel@analog.com>
On Fri, Mar 01, 2019 at 06:56:14AM +0000, Ardelean, Alexandru wrote:
> On Thu, 2019-02-28 at 11:23 -0300, Renato Lui Geh wrote:
> >
> >
> > Previously, the AD7780 driver only supported gpio for the 'powerdown'
> > pin. This commit adds suppport for the 'gain' and 'filter' pin.
> >
> > Signed-off-by: Renato Lui Geh <renatogeh@gmail.com>
> > Signed-off-by: Giuliano Belinassi <giuliano.belinassi@usp.br>
> > Co-developed-by: Giuliano Belinassi <giuliano.belinassi@usp.br>
> > ---
> > Changes in v3:
> > - Renamed ad7780_chip_info's filter to odr
> > - Renamed ad778x_filter to ad778x_odr_avail
> > - Changed vref variable from unsigned int to unsigned long long to avoid
> > overflow
> > - Removed unnecessary AD_SD_CHANNEL macro
> > Changes in v4:
> > - Removed useless macro
> > - Added default case for switch to suppress warning
> > - Removed chunks belonging to filter reading, adding these as a
> > patch for itself
> >
> > drivers/staging/iio/adc/ad7780.c | 90 +++++++++++++++++++++++++++++---
> > 1 file changed, 84 insertions(+), 6 deletions(-)
> >
> > diff --git a/drivers/staging/iio/adc/ad7780.c
> > b/drivers/staging/iio/adc/ad7780.c
> > index c4a85789c2db..87fbcf510d45 100644
> > --- a/drivers/staging/iio/adc/ad7780.c
> > +++ b/drivers/staging/iio/adc/ad7780.c
> > @@ -39,6 +39,12 @@
> > #define AD7170_PATTERN (AD7780_PAT0 | AD7170_PAT2)
> > #define AD7170_PATTERN_MASK (AD7780_PAT0 | AD7780_PAT1 | AD7170_PAT2)
> >
> > +#define AD7780_GAIN_MIDPOINT 64
> > +#define AD7780_FILTER_MIDPOINT 13350
> > +
> > +static const unsigned int ad778x_gain[2] = { 1, 128 };
> > +static const unsigned int ad778x_odr_avail[2] = { 10000, 16700 };
>
> ad778x_odr_avail[2] is not used in this patch, so it should probably go
> into the next one
> (i.e. staging: iio: ad7780: add filter reading to ad778x )
>
> one good way of catching stuff like this is to do interactive rebase and
> compile your driver on each patch to see if the compiler catches this;
> i suspect the compiler would have thrown an error for this change
>
GCC (v7.3) doesn't complain about unused variables if they're const.
regards,
dan carpenter
next prev parent reply other threads:[~2019-03-01 7:42 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-28 14:23 [PATCH v4 0/9] staging: iio: ad7780: move out of staging Renato Lui Geh
2019-02-28 14:23 ` [PATCH v4 1/9] staging: iio: ad7780: add gain & filter gpio support Renato Lui Geh
2019-03-01 6:56 ` Ardelean, Alexandru
2019-03-01 7:42 ` Dan Carpenter [this message]
2019-03-02 19:03 ` Jonathan Cameron
2019-02-28 14:24 ` [PATCH v4 2/9] staging: iio: ad7780: add filter reading to ad778x Renato Lui Geh
2019-03-01 6:59 ` Ardelean, Alexandru
2019-02-28 14:24 ` [PATCH v4 3/9] staging: iio: ad7780: set pattern values and masks directly Renato Lui Geh
2019-03-01 7:17 ` Ardelean, Alexandru
2019-03-02 19:07 ` Jonathan Cameron
2019-03-02 19:08 ` Jonathan Cameron
2019-03-04 7:19 ` Ardelean, Alexandru
2019-02-28 14:24 ` [PATCH v4 4/9] staging:iio:ad7780: add chip ID values and mask Renato Lui Geh
2019-03-01 7:20 ` Ardelean, Alexandru
2019-03-03 14:01 ` Renato Lui Geh
2019-03-03 14:53 ` Jonathan Cameron
2019-03-04 7:33 ` Ardelean, Alexandru
2019-03-09 0:19 ` Renato Lui Geh
2019-03-09 17:47 ` Jonathan Cameron
2019-02-28 14:25 ` [PATCH v4 5/9] staging: iio: ad7780: move regulator to after GPIO init Renato Lui Geh
2019-03-01 7:38 ` Ardelean, Alexandru
2019-03-02 19:11 ` Jonathan Cameron
2019-03-04 7:20 ` Ardelean, Alexandru
2019-02-28 14:25 ` [PATCH v4 6/9] staging: iio: ad7780: add SPDX identifier Renato Lui Geh
2019-02-28 14:25 ` [PATCH v4 7/9] staging: iio: ad7780: add new copyright holder Renato Lui Geh
2019-02-28 14:26 ` [PATCH v4 8/9] staging: iio: ad7780: moving ad7780 out of staging Renato Lui Geh
2019-03-02 19:17 ` Jonathan Cameron
2019-02-28 14:26 ` [PATCH v4 9/9] staging: iio: ad7780: add device tree binding Renato Lui Geh
2019-03-02 19:13 ` Jonathan Cameron
2019-03-11 22:47 ` Rob Herring
2019-03-01 8:35 ` [PATCH v4 0/9] staging: iio: ad7780: move out of staging Ardelean, Alexandru
2019-03-03 13:52 ` Renato Lui Geh
2019-03-03 14:32 ` Alexandru Ardelean
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