linux-kernel - [RFC PATCH v2 0/5] iio: adc: qcom-spmi-vadc: Propagate fw node label to userspace

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Message-Id: <20230116220909.196926-1-marijn.suijten@somainline.org>
Date:   Mon, 16 Jan 2023 23:09:04 +0100
From:   Marijn Suijten <marijn.suijten@...ainline.org>
To:     phone-devel@...r.kernel.org, Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Jonathan Cameron <jic23@...nel.org>
Cc:     ~postmarketos/upstreaming@...ts.sr.ht,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...ainline.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Martin Botka <martin.botka@...ainline.org>,
        Jami Kettunen <jami.kettunen@...ainline.org>,
        Marijn Suijten <marijn.suijten@...ainline.org>,
        Lars-Peter Clausen <lars@...afoo.de>,
        linux-arm-msm@...r.kernel.org, linux-iio@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [RFC PATCH v2 0/5] iio: adc: qcom-spmi-vadc: Propagate fw node label to userspace

Implement read_label in qcom-spmi-vadc to see DT-specified label names
in userspace.  At the same time clear up some documentation around
extend_name to promote read_label, and normalize similar code in
qcom-spmi-adc5.

Changes since v1:
- qcom-spmi-vadc: Use read_label instead of extend_name;

New since v1:
- core: Point users of extend_name field to read_label callback
- qcom-spmi-adc5: Use datasheet_name string literal for
  iio_chan_spec::datasheet_name;
- qcom-spmi-adc5: Fall back to datasheet_name instead of
  fwnode_get_name() for iio_chan_spec::extend_name (gets rid of @xx in
  sysfs filenames and labels);
- qcom-spmi-adc5: Remove unnecessary datasheet_name NULL check.

v1: https://lore.kernel.org/linux-arm-msm/20221106193018.270106-1-marijn.suijten@somainline.org/

Marijn Suijten (5):
  iio: core: Point users of extend_name field to read_label callback
  iio: adc: qcom-spmi-adc5: Use driver datasheet_name instead of DT
    label
  iio: adc: qcom-spmi-adc5: Fall back to datasheet_name instead of
    fwnode name
  iio: adc: qcom-spmi-adc5: Remove unnecessary datasheet_name NULL check
  iio: adc: qcom-spmi-vadc: Propagate fw node label to userspace

 drivers/iio/adc/qcom-spmi-adc5.c | 15 +++++++--------
 drivers/iio/adc/qcom-spmi-vadc.c | 19 ++++++++++++++++++-
 include/linux/iio/iio.h          |  3 +++
 3 files changed, 28 insertions(+), 9 deletions(-)

--
2.39.0