linux-kernel - Re: [PATCH v4 0/9] staging: iio: ad7780: move out of staging

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Message-ID: <72a54cd5f58aeb9507b95b7e33ca3d9a38c853e9.camel@analog.com>
Date:   Fri, 1 Mar 2019 08:35:17 +0000
From:   "Ardelean, Alexandru" <Alex.Ardelean@...log.com>
To:     "lars@...afoo.de" <lars@...afoo.de>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "Popa, Stefan Serban" <StefanSerban.Popa@...log.com>,
        "knaack.h@....de" <knaack.h@....de>,
        "jic23@...nel.org" <jic23@...nel.org>,
        "Hennerich, Michael" <Michael.Hennerich@...log.com>,
        "renatogeh@...il.com" <renatogeh@...il.com>,
        "mark.rutland@....com" <mark.rutland@....com>,
        "giuliano.belinassi@....br" <giuliano.belinassi@....br>,
        "pmeerw@...erw.net" <pmeerw@...erw.net>,
        "gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>
CC:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-iio@...r.kernel.org" <linux-iio@...r.kernel.org>,
        "devel@...verdev.osuosl.org" <devel@...verdev.osuosl.org>,
        "kernel-usp@...glegroups.com" <kernel-usp@...glegroups.com>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>
Subject: Re: [PATCH v4 0/9] staging: iio: ad7780: move out of staging

On Thu, 2019-02-28 at 11:23 -0300, Renato Lui Geh wrote:
> 

The patch-series is a bit big.
I guess that the intent is to move this out-of-staging, but various patches
are holding this in it's place.
For patch series above a certain size, you could get many re-spins
[V2,3,4... so on].

You could send some of the changes as individual patches, or group them in
series of 1,2 or 3 patches. That way, you "parallelize" patch sending, and
when you get reviews on each patch, you can re-spin them individually.
You'll find over time that certain patches get accepted on V1, others on V2
and some on V7 [ hopefully, there isn't any frustration at that point ].

Well, this is a technique I use to distribute some of my upstream-patch-
work, so that I can switch easier between internal-work & upstreaming-work.

Coming back to this patch-series.
My general input, is that the patches are fine over-all; some are just
cosmetics/noise/a-different-way-of-doing-things-for-this-driver, and those
usually can be left to preference [of the maintainer usually].

I do suggest to not hurry when re-spinning patches, and not change too much
the number of patches in a new series. That can complicate things
sometimes. But, if doing small patch-series or individual patches, you
won't have this problem too much.

Thanks
Alex

> 
> This series of patches contains the following:
>  - Adds user input for the 'gain' and 'filter' GPIO pins for the ad778x
>    family chips;
>  - Filter reading for the ad778x;
>  - Sets pattern macro values and mask for PATTERN status bits;
>  - Adds ID values for the ad7170, ad7171, ad7780 and ad7781 for ID
>    status bits checking;
>  - Moves regulator initialization to after GPIO init to maintain
>    consistency between probe and remove;
>  - Copyright edits, adding SPDX identifier and new copyright holder;
>  - Moves the ad7780 driver out of staging to the mainline;
>  - Adds device tree binding for the ad7780 driver.
> 
> Renato Lui Geh (9):
>   staging: iio: ad7780: add gain & filter gpio support
>   staging: iio: ad7780: add filter reading to ad778x
>   staging: iio: ad7780: set pattern values and masks directly
>   staging:iio:ad7780: add chip ID values and mask
>   staging: iio: ad7780: move regulator to after GPIO init
>   staging: iio: ad7780: add SPDX identifier
>   staging: iio: ad7780: add new copyright holder
>   staging: iio: ad7780: moving ad7780 out of staging
>   staging: iio: ad7780: add device tree binding
> 
> Changelog:
> *v3
>  - SPDX and regulator init as patches
>  - Renamed filter to odr and ad778x_filter to ad778x_odr_avail
>  - Removed unnecessary regulator disabling
>  - Removed unnecessary AD_SD_CHANNEL macro
>  - Changed unsigned int to unsigned long long to avoid overflow
> *v4
>  - Split gain & filter patch into two, with the new commit adding only
>    filter reading
>  - Changed pattern values to direct values, and added pattern mask
>  - Added ID values and mask
>  - Added new copyright holder
>  - Added device tree binding to the ad7780 driver
> 
>  .../bindings/iio/adc/adi,ad7780.txt           |  48 +++
>  drivers/iio/adc/Kconfig                       |  12 +
>  drivers/iio/adc/Makefile                      |   1 +
>  drivers/iio/adc/ad7780.c                      | 365 ++++++++++++++++++
>  drivers/staging/iio/adc/Kconfig               |  13 -
>  drivers/staging/iio/adc/Makefile              |   1 -
>  drivers/staging/iio/adc/ad7780.c              | 277 -------------
>  7 files changed, 426 insertions(+), 291 deletions(-)
>  create mode 100644
> Documentation/devicetree/bindings/iio/adc/adi,ad7780.txt
>  create mode 100644 drivers/iio/adc/ad7780.c
>  delete mode 100644 drivers/staging/iio/adc/ad7780.c
> 
> --
> 2.21.0
>