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Wed, 20 Aug 2025 08:03:24 -0400 From: Ioana Risteiu To: Lars-Peter Clausen , Michael Hennerich , Jonathan Cameron , "David Lechner" , =?UTF-8?q?Nuno=20S=C3=A1?= , Andy Shevchenko , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Ramona Nechita , , , CC: Ioana Risteiu Subject: [PATCH v4 3/4] iio: adc: extract setup function without backend Date: Wed, 20 Aug 2025 15:02:44 +0300 Message-ID: <20250820120247.3012-4-Ioana.Risteiu@analog.com> X-Mailer: git-send-email 2.47.2 In-Reply-To: <20250820120247.3012-1-Ioana.Risteiu@analog.com> References: <20250820120247.3012-1-Ioana.Risteiu@analog.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-ADIRuleOP-NewSCL: Rule Triggered X-Authority-Analysis: v=2.4 cv=bvAVxEai c=1 sm=1 tr=0 ts=68a5b994 cx=c_pps a=PpDZqlmH/M8setHirZLBMw==:117 a=PpDZqlmH/M8setHirZLBMw==:17 a=2OwXVqhp2XgA:10 a=gAnH3GRIAAAA:8 a=e6B03PNIoHuVPIBsO9AA:9 a=cPQSjfK2_nFv0Q5t_7PE:22 X-Proofpoint-GUID: WQwN1nrInSMs8PEmrVZjifBKCsbxCgda X-Proofpoint-ORIG-GUID: WQwN1nrInSMs8PEmrVZjifBKCsbxCgda X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUwODE5MDE5NSBTYWx0ZWRfX/AtsBmOsquDt SxFmX+1SaTgfsa8bCJFCavZLb2mR/4ARV3Ce7Gp4JxUA4Twf1R18aTRxLNIgKoGEoT0eesj4+x4 o7NUjfyGkxnNJVOzbgTlb+39vrWfXmLt8HPDCzZt0sUH2SmtaJVwDut6zwe8t+erWA+oo9We2H2 xBc/TQiTy1Kfc6aYd6E6FdSneYYK2nWBSJmvcQCRekVUMX1dAS6S6Ovu48TirFoAPvpJuxS6Xyi 7t4wkWEEgki0lorybAnlVaAJpP3gXXHLrPra86bMyJKfFMGPlcmMGN4uxP1l/4n/ohk95xunBnZ 1vgs/CkO7dWAuA3TcVDopFP78ezbvwPX3kj8OAXmAdv3V4rdNF0vBGyk4+01/8DwacxMWpblhI6 va9ZVBNDkGqHI1y+UUT7pgRbuP7rPg== X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1099,Hydra:6.1.9,FMLib:17.12.80.40 definitions=2025-08-20_03,2025-08-20_02,2025-03-28_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 adultscore=0 impostorscore=0 clxscore=1015 lowpriorityscore=0 phishscore=0 spamscore=0 suspectscore=0 priorityscore=1501 malwarescore=0 bulkscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2508110000 definitions=main-2508190195 Content-Type: text/plain; charset="utf-8" Refactor probe function by moving the initialization specific to communication without iio-backend into a separate setup function. The purpose of this modification is better code organization. No functional changes intended. Signed-off-by: Ioana Risteiu --- no changes in v4. drivers/iio/adc/ad7779.c | 83 ++++++++++++++++++++++------------------ 1 file changed, 45 insertions(+), 38 deletions(-) diff --git a/drivers/iio/adc/ad7779.c b/drivers/iio/adc/ad7779.c index 845adc510239..f7e681c0e8c0 100644 --- a/drivers/iio/adc/ad7779.c +++ b/drivers/iio/adc/ad7779.c @@ -752,6 +752,50 @@ static int ad7779_conf(struct ad7779_state *st, struct= gpio_desc *start_gpio) return 0; } =20 +static int ad7779_setup_without_backend(struct ad7779_state *st, struct ii= o_dev *indio_dev) +{ + int ret; + struct device *dev =3D &st->spi->dev; + + indio_dev->info =3D &ad7779_info; + indio_dev->channels =3D st->chip_info->channels; + + st->trig =3D devm_iio_trigger_alloc(dev, "%s-dev%d", indio_dev->name, + iio_device_id(indio_dev)); + if (!st->trig) + return -ENOMEM; + + st->trig->ops =3D &ad7779_trigger_ops; + + iio_trigger_set_drvdata(st->trig, st); + + ret =3D devm_request_irq(dev, st->spi->irq, iio_trigger_generic_data_rdy_= poll, + IRQF_ONESHOT | IRQF_NO_AUTOEN, indio_dev->name, + st->trig); + if (ret) + return dev_err_probe(dev, ret, "request IRQ %d failed\n", + st->spi->irq); + + ret =3D devm_iio_trigger_register(dev, st->trig); + if (ret) + return ret; + + indio_dev->trig =3D iio_trigger_get(st->trig); + + init_completion(&st->completion); + + ret =3D devm_iio_triggered_buffer_setup(dev, indio_dev, + &iio_pollfunc_store_time, + &ad7779_trigger_handler, + &ad7779_buffer_setup_ops); + if (ret) + return ret; + + return ad7779_spi_write_mask(st, AD7779_REG_DOUT_FORMAT, + AD7779_DCLK_CLK_DIV_MSK, + FIELD_PREP(AD7779_DCLK_CLK_DIV_MSK, 7)); +} + static int ad7779_probe(struct spi_device *spi) { struct iio_dev *indio_dev; @@ -760,9 +804,6 @@ static int ad7779_probe(struct spi_device *spi) struct device *dev =3D &spi->dev; int ret =3D -EINVAL; =20 - if (!spi->irq) - return dev_err_probe(dev, ret, "DRDY irq not present\n"); - indio_dev =3D devm_iio_device_alloc(dev, sizeof(*st)); if (!indio_dev) return -ENOMEM; @@ -804,45 +845,11 @@ static int ad7779_probe(struct spi_device *spi) return ret; =20 indio_dev->name =3D st->chip_info->name; - indio_dev->info =3D &ad7779_info; indio_dev->modes =3D INDIO_DIRECT_MODE; - indio_dev->channels =3D st->chip_info->channels; indio_dev->num_channels =3D ARRAY_SIZE(ad7779_channels); =20 - st->trig =3D devm_iio_trigger_alloc(dev, "%s-dev%d", indio_dev->name, - iio_device_id(indio_dev)); - if (!st->trig) - return -ENOMEM; - - st->trig->ops =3D &ad7779_trigger_ops; - - iio_trigger_set_drvdata(st->trig, st); - - ret =3D devm_request_irq(dev, spi->irq, iio_trigger_generic_data_rdy_poll, - IRQF_ONESHOT | IRQF_NO_AUTOEN, indio_dev->name, - st->trig); - if (ret) - return dev_err_probe(dev, ret, "request IRQ %d failed\n", - st->spi->irq); - - ret =3D devm_iio_trigger_register(dev, st->trig); - if (ret) - return ret; - - indio_dev->trig =3D iio_trigger_get(st->trig); - - init_completion(&st->completion); - - ret =3D devm_iio_triggered_buffer_setup(dev, indio_dev, - &iio_pollfunc_store_time, - &ad7779_trigger_handler, - &ad7779_buffer_setup_ops); - if (ret) - return ret; + ret =3D ad7779_setup_without_backend(st, indio_dev); =20 - ret =3D ad7779_spi_write_mask(st, AD7779_REG_DOUT_FORMAT, - AD7779_DCLK_CLK_DIV_MSK, - FIELD_PREP(AD7779_DCLK_CLK_DIV_MSK, 7)); if (ret) return ret; =20 --=20 2.47.2