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([5.2.193.191]) by smtp.gmail.com with ESMTPSA id v13sm13863772ejh.62.2021.07.26.00.14.07 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 26 Jul 2021 00:14:08 -0700 (PDT) From: Alexandru Ardelean To: linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org Cc: denis.ciocca@st.com, jic23@kernel.org, Alexandru Ardelean Subject: [PATCH 1/4] iio: st_sensors: remove st_sensors_deallocate_trigger() function Date: Mon, 26 Jul 2021 10:14:01 +0300 Message-Id: <20210726071404.14529-2-aardelean@deviqon.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210726071404.14529-1-aardelean@deviqon.com> References: <20210726071404.14529-1-aardelean@deviqon.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-iio@vger.kernel.org This change converts the st_sensors_allocate_trigger() to use device-managed functions. The parent device of the IIO device object is used. This is based on the assumption that all other devm_ calls in the ST sensors use this reference. That makes the st_sensors_deallocate_trigger() function un-needed, so it can be removed. Signed-off-by: Alexandru Ardelean --- drivers/iio/accel/st_accel_core.c | 18 +------- .../common/st_sensors/st_sensors_trigger.c | 45 +++++++------------ drivers/iio/gyro/st_gyro_core.c | 18 +------- drivers/iio/magnetometer/st_magn_core.c | 18 +------- drivers/iio/pressure/st_pressure_core.c | 18 +------- include/linux/iio/common/st_sensors.h | 5 --- 6 files changed, 19 insertions(+), 103 deletions(-) diff --git a/drivers/iio/accel/st_accel_core.c b/drivers/iio/accel/st_accel_core.c index f1e6ec380667..a7be1633bff1 100644 --- a/drivers/iio/accel/st_accel_core.c +++ b/drivers/iio/accel/st_accel_core.c @@ -1380,29 +1380,13 @@ int st_accel_common_probe(struct iio_dev *indio_dev) return err; } - err = iio_device_register(indio_dev); - if (err) - goto st_accel_device_register_error; - - dev_info(&indio_dev->dev, "registered accelerometer %s\n", - indio_dev->name); - - return 0; - -st_accel_device_register_error: - if (adata->irq > 0) - st_sensors_deallocate_trigger(indio_dev); - return err; + return iio_device_register(indio_dev); } EXPORT_SYMBOL(st_accel_common_probe); void st_accel_common_remove(struct iio_dev *indio_dev) { - struct st_sensor_data *adata = iio_priv(indio_dev); - iio_device_unregister(indio_dev); - if (adata->irq > 0) - st_sensors_deallocate_trigger(indio_dev); } EXPORT_SYMBOL(st_accel_common_remove); diff --git a/drivers/iio/common/st_sensors/st_sensors_trigger.c b/drivers/iio/common/st_sensors/st_sensors_trigger.c index 64e0a748a855..d022157b66a2 100644 --- a/drivers/iio/common/st_sensors/st_sensors_trigger.c +++ b/drivers/iio/common/st_sensors/st_sensors_trigger.c @@ -119,11 +119,12 @@ int st_sensors_allocate_trigger(struct iio_dev *indio_dev, const struct iio_trigger_ops *trigger_ops) { struct st_sensor_data *sdata = iio_priv(indio_dev); + struct device *parent = indio_dev->dev.parent; unsigned long irq_trig; int err; - sdata->trig = iio_trigger_alloc(sdata->dev, "%s-trigger", - indio_dev->name); + sdata->trig = devm_iio_trigger_alloc(parent, "%s-trigger", + indio_dev->name); if (sdata->trig == NULL) { dev_err(&indio_dev->dev, "failed to allocate iio trigger.\n"); return -ENOMEM; @@ -153,7 +154,7 @@ int st_sensors_allocate_trigger(struct iio_dev *indio_dev, sdata->sensor_settings->drdy_irq.addr_ihl, sdata->sensor_settings->drdy_irq.mask_ihl, 1); if (err < 0) - goto iio_trigger_free; + return err; dev_info(&indio_dev->dev, "interrupts on the falling edge or active low level\n"); } @@ -179,8 +180,7 @@ int st_sensors_allocate_trigger(struct iio_dev *indio_dev, if (!sdata->sensor_settings->drdy_irq.stat_drdy.addr) { dev_err(&indio_dev->dev, "edge IRQ not supported w/o stat register.\n"); - err = -EOPNOTSUPP; - goto iio_trigger_free; + return -EOPNOTSUPP; } sdata->edge_irq = true; } else { @@ -205,44 +205,29 @@ int st_sensors_allocate_trigger(struct iio_dev *indio_dev, sdata->sensor_settings->drdy_irq.stat_drdy.addr) irq_trig |= IRQF_SHARED; - err = request_threaded_irq(sdata->irq, - st_sensors_irq_handler, - st_sensors_irq_thread, - irq_trig, - sdata->trig->name, - sdata->trig); + err = devm_request_threaded_irq(parent, + sdata->irq, + st_sensors_irq_handler, + st_sensors_irq_thread, + irq_trig, + sdata->trig->name, + sdata->trig); if (err) { dev_err(&indio_dev->dev, "failed to request trigger IRQ.\n"); - goto iio_trigger_free; + return err; } - err = iio_trigger_register(sdata->trig); + err = devm_iio_trigger_register(parent, sdata->trig); if (err < 0) { dev_err(&indio_dev->dev, "failed to register iio trigger.\n"); - goto iio_trigger_register_error; + return err; } indio_dev->trig = iio_trigger_get(sdata->trig); return 0; - -iio_trigger_register_error: - free_irq(sdata->irq, sdata->trig); -iio_trigger_free: - iio_trigger_free(sdata->trig); - return err; } EXPORT_SYMBOL(st_sensors_allocate_trigger); -void st_sensors_deallocate_trigger(struct iio_dev *indio_dev) -{ - struct st_sensor_data *sdata = iio_priv(indio_dev); - - iio_trigger_unregister(sdata->trig); - free_irq(sdata->irq, sdata->trig); - iio_trigger_free(sdata->trig); -} -EXPORT_SYMBOL(st_sensors_deallocate_trigger); - int st_sensors_validate_device(struct iio_trigger *trig, struct iio_dev *indio_dev) { diff --git a/drivers/iio/gyro/st_gyro_core.c b/drivers/iio/gyro/st_gyro_core.c index e8fc8af65143..cb539b47cdf4 100644 --- a/drivers/iio/gyro/st_gyro_core.c +++ b/drivers/iio/gyro/st_gyro_core.c @@ -515,29 +515,13 @@ int st_gyro_common_probe(struct iio_dev *indio_dev) return err; } - err = iio_device_register(indio_dev); - if (err) - goto st_gyro_device_register_error; - - dev_info(&indio_dev->dev, "registered gyroscope %s\n", - indio_dev->name); - - return 0; - -st_gyro_device_register_error: - if (gdata->irq > 0) - st_sensors_deallocate_trigger(indio_dev); - return err; + return iio_device_register(indio_dev); } EXPORT_SYMBOL(st_gyro_common_probe); void st_gyro_common_remove(struct iio_dev *indio_dev) { - struct st_sensor_data *gdata = iio_priv(indio_dev); - iio_device_unregister(indio_dev); - if (gdata->irq > 0) - st_sensors_deallocate_trigger(indio_dev); } EXPORT_SYMBOL(st_gyro_common_remove); diff --git a/drivers/iio/magnetometer/st_magn_core.c b/drivers/iio/magnetometer/st_magn_core.c index 9ffd50d796bf..5be85e2405a5 100644 --- a/drivers/iio/magnetometer/st_magn_core.c +++ b/drivers/iio/magnetometer/st_magn_core.c @@ -650,29 +650,13 @@ int st_magn_common_probe(struct iio_dev *indio_dev) return err; } - err = iio_device_register(indio_dev); - if (err) - goto st_magn_device_register_error; - - dev_info(&indio_dev->dev, "registered magnetometer %s\n", - indio_dev->name); - - return 0; - -st_magn_device_register_error: - if (mdata->irq > 0) - st_sensors_deallocate_trigger(indio_dev); - return err; + return iio_device_register(indio_dev); } EXPORT_SYMBOL(st_magn_common_probe); void st_magn_common_remove(struct iio_dev *indio_dev) { - struct st_sensor_data *mdata = iio_priv(indio_dev); - iio_device_unregister(indio_dev); - if (mdata->irq > 0) - st_sensors_deallocate_trigger(indio_dev); } EXPORT_SYMBOL(st_magn_common_remove); diff --git a/drivers/iio/pressure/st_pressure_core.c b/drivers/iio/pressure/st_pressure_core.c index ab1c17fac807..17ebb5171d4c 100644 --- a/drivers/iio/pressure/st_pressure_core.c +++ b/drivers/iio/pressure/st_pressure_core.c @@ -721,29 +721,13 @@ int st_press_common_probe(struct iio_dev *indio_dev) return err; } - err = iio_device_register(indio_dev); - if (err) - goto st_press_device_register_error; - - dev_info(&indio_dev->dev, "registered pressure sensor %s\n", - indio_dev->name); - - return err; - -st_press_device_register_error: - if (press_data->irq > 0) - st_sensors_deallocate_trigger(indio_dev); - return err; + return iio_device_register(indio_dev); } EXPORT_SYMBOL(st_press_common_probe); void st_press_common_remove(struct iio_dev *indio_dev) { - struct st_sensor_data *press_data = iio_priv(indio_dev); - iio_device_unregister(indio_dev); - if (press_data->irq > 0) - st_sensors_deallocate_trigger(indio_dev); } EXPORT_SYMBOL(st_press_common_remove); diff --git a/include/linux/iio/common/st_sensors.h b/include/linux/iio/common/st_sensors.h index 8bdbaf3f3796..e74b55244f35 100644 --- a/include/linux/iio/common/st_sensors.h +++ b/include/linux/iio/common/st_sensors.h @@ -273,7 +273,6 @@ irqreturn_t st_sensors_trigger_handler(int irq, void *p); int st_sensors_allocate_trigger(struct iio_dev *indio_dev, const struct iio_trigger_ops *trigger_ops); -void st_sensors_deallocate_trigger(struct iio_dev *indio_dev); int st_sensors_validate_device(struct iio_trigger *trig, struct iio_dev *indio_dev); #else @@ -282,10 +281,6 @@ static inline int st_sensors_allocate_trigger(struct iio_dev *indio_dev, { return 0; } -static inline void st_sensors_deallocate_trigger(struct iio_dev *indio_dev) -{ - return; -} #define st_sensors_validate_device NULL #endif