From patchwork Wed Dec 15 15:13:43 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Miquel Raynal X-Patchwork-Id: 12678553 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id B4479C4332F for ; Wed, 15 Dec 2021 15:13:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S243844AbhLOPNz (ORCPT ); Wed, 15 Dec 2021 10:13:55 -0500 Received: from relay12.mail.gandi.net ([217.70.178.232]:54967 "EHLO relay12.mail.gandi.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S243841AbhLOPNz (ORCPT ); Wed, 15 Dec 2021 10:13:55 -0500 Received: (Authenticated sender: miquel.raynal@bootlin.com) by relay12.mail.gandi.net (Postfix) with ESMTPSA id 8F743200009; Wed, 15 Dec 2021 15:13:52 +0000 (UTC) From: Miquel Raynal To: linux-iio@vger.kernel.org, Jonathan Cameron , Lars-Peter Clausen Cc: Thomas Petazzoni , Miquel Raynal Subject: [PATCH 09/10] iio: core: Simplify the registration of kfifo buffers Date: Wed, 15 Dec 2021 16:13:43 +0100 Message-Id: <20211215151344.163036-10-miquel.raynal@bootlin.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20211215151344.163036-1-miquel.raynal@bootlin.com> References: <20211215151344.163036-1-miquel.raynal@bootlin.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-iio@vger.kernel.org Among all the users of the kfifo buffers, no one uses the INDIO_BUFFER_HARDWARE mode. So let's take this as a general rule and simplify a little bit the internals - overall the documentation - by eliminating unused specific cases. Use the INDIO_BUFFER_SOFTWARE mode by default with kfifo buffers, which will basically mimic what all the "non direct" modes do. Signed-off-by: Miquel Raynal --- drivers/iio/accel/fxls8962af-core.c | 1 - drivers/iio/accel/sca3000.c | 1 - drivers/iio/accel/ssp_accel_sensor.c | 1 - drivers/iio/adc/ina2xx-adc.c | 1 - drivers/iio/adc/ti_am335x_adc.c | 4 +--- drivers/iio/buffer/kfifo_buf.c | 12 ++---------- .../common/cros_ec_sensors/cros_ec_sensors_core.c | 3 +-- drivers/iio/common/scmi_sensors/scmi_iio.c | 1 - drivers/iio/gyro/ssp_gyro_sensor.c | 1 - drivers/iio/health/max30100.c | 1 - drivers/iio/health/max30102.c | 1 - drivers/iio/imu/inv_icm42600/inv_icm42600_accel.c | 1 - drivers/iio/imu/inv_icm42600/inv_icm42600_gyro.c | 1 - drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c | 1 - drivers/iio/light/apds9960.c | 1 - drivers/staging/iio/impedance-analyzer/ad5933.c | 1 - include/linux/iio/kfifo_buf.h | 5 ++--- 17 files changed, 6 insertions(+), 31 deletions(-) diff --git a/drivers/iio/accel/fxls8962af-core.c b/drivers/iio/accel/fxls8962af-core.c index 32989d91b982..cf494937a346 100644 --- a/drivers/iio/accel/fxls8962af-core.c +++ b/drivers/iio/accel/fxls8962af-core.c @@ -1209,7 +1209,6 @@ int fxls8962af_core_probe(struct device *dev, struct regmap *regmap, int irq) return ret; ret = devm_iio_kfifo_buffer_setup(dev, indio_dev, - INDIO_BUFFER_SOFTWARE, &fxls8962af_buffer_ops); if (ret) return ret; diff --git a/drivers/iio/accel/sca3000.c b/drivers/iio/accel/sca3000.c index c6b75308148a..a65a05f1208b 100644 --- a/drivers/iio/accel/sca3000.c +++ b/drivers/iio/accel/sca3000.c @@ -1465,7 +1465,6 @@ static int sca3000_probe(struct spi_device *spi) indio_dev->modes = INDIO_DIRECT_MODE; ret = devm_iio_kfifo_buffer_setup(&spi->dev, indio_dev, - INDIO_BUFFER_SOFTWARE, &sca3000_ring_setup_ops); if (ret) return ret; diff --git a/drivers/iio/accel/ssp_accel_sensor.c b/drivers/iio/accel/ssp_accel_sensor.c index 04dcb2b657ee..d20f8d299c11 100644 --- a/drivers/iio/accel/ssp_accel_sensor.c +++ b/drivers/iio/accel/ssp_accel_sensor.c @@ -113,7 +113,6 @@ static int ssp_accel_probe(struct platform_device *pdev) indio_dev->available_scan_masks = ssp_accel_scan_mask; ret = devm_iio_kfifo_buffer_setup(&pdev->dev, indio_dev, - INDIO_BUFFER_SOFTWARE, &ssp_accel_buffer_ops); if (ret) return ret; diff --git a/drivers/iio/adc/ina2xx-adc.c b/drivers/iio/adc/ina2xx-adc.c index a4b2ff9e0dd5..013d2d586df1 100644 --- a/drivers/iio/adc/ina2xx-adc.c +++ b/drivers/iio/adc/ina2xx-adc.c @@ -1030,7 +1030,6 @@ static int ina2xx_probe(struct i2c_client *client, indio_dev->name = id->name; ret = devm_iio_kfifo_buffer_setup(&client->dev, indio_dev, - INDIO_BUFFER_SOFTWARE, &ina2xx_setup_ops); if (ret) return ret; diff --git a/drivers/iio/adc/ti_am335x_adc.c b/drivers/iio/adc/ti_am335x_adc.c index dbdc1ef48566..567d43a30955 100644 --- a/drivers/iio/adc/ti_am335x_adc.c +++ b/drivers/iio/adc/ti_am335x_adc.c @@ -376,9 +376,7 @@ static int tiadc_iio_buffered_hardware_setup(struct device *dev, { int ret; - ret = devm_iio_kfifo_buffer_setup(dev, indio_dev, - INDIO_BUFFER_SOFTWARE, - setup_ops); + ret = devm_iio_kfifo_buffer_setup(dev, indio_dev, setup_ops); if (ret) return ret; diff --git a/drivers/iio/buffer/kfifo_buf.c b/drivers/iio/buffer/kfifo_buf.c index 416d35a61ae2..f17473e06ee8 100644 --- a/drivers/iio/buffer/kfifo_buf.c +++ b/drivers/iio/buffer/kfifo_buf.c @@ -197,7 +197,7 @@ static const struct iio_buffer_access_funcs kfifo_access_funcs = { .set_length = &iio_set_length_kfifo, .release = &iio_kfifo_buffer_release, - .modes = INDIO_BUFFER_SOFTWARE | INDIO_BUFFER_TRIGGERED, + .modes = INDIO_BUFFER_SOFTWARE, }; struct iio_buffer *iio_kfifo_allocate(void) @@ -259,8 +259,6 @@ static struct iio_buffer *devm_iio_kfifo_allocate(struct device *dev) * devm_iio_kfifo_buffer_setup_ext - Allocate a kfifo buffer & attach it to an IIO device * @dev: Device object to which to attach the life-time of this kfifo buffer * @indio_dev: The device the buffer should be attached to - * @mode_flags: The mode flags for this buffer (INDIO_BUFFER_SOFTWARE and/or - * INDIO_BUFFER_TRIGGERED). * @setup_ops: The setup_ops required to configure the HW part of the buffer (optional) * @buffer_attrs: Extra sysfs buffer attributes for this IIO buffer * @@ -271,22 +269,16 @@ static struct iio_buffer *devm_iio_kfifo_allocate(struct device *dev) */ int devm_iio_kfifo_buffer_setup_ext(struct device *dev, struct iio_dev *indio_dev, - int mode_flags, const struct iio_buffer_setup_ops *setup_ops, const struct attribute **buffer_attrs) { struct iio_buffer *buffer; - if (!mode_flags) - return -EINVAL; - buffer = devm_iio_kfifo_allocate(dev); if (!buffer) return -ENOMEM; - mode_flags &= kfifo_access_funcs.modes; - - indio_dev->modes |= mode_flags; + indio_dev->modes |= INDIO_BUFFER_SOFTWARE; indio_dev->setup_ops = setup_ops; buffer->attrs = buffer_attrs; diff --git a/drivers/iio/common/cros_ec_sensors/cros_ec_sensors_core.c b/drivers/iio/common/cros_ec_sensors/cros_ec_sensors_core.c index b2725c6adc7f..a4cf1d9a8a49 100644 --- a/drivers/iio/common/cros_ec_sensors/cros_ec_sensors_core.c +++ b/drivers/iio/common/cros_ec_sensors/cros_ec_sensors_core.c @@ -333,8 +333,7 @@ int cros_ec_sensors_core_init(struct platform_device *pdev, * We can not use trigger here, as events are generated * as soon as sample_frequency is set. */ - ret = devm_iio_kfifo_buffer_setup_ext(dev, indio_dev, - INDIO_BUFFER_SOFTWARE, NULL, + ret = devm_iio_kfifo_buffer_setup_ext(dev, indio_dev, NULL, cros_ec_sensor_fifo_attributes); if (ret) return ret; diff --git a/drivers/iio/common/scmi_sensors/scmi_iio.c b/drivers/iio/common/scmi_sensors/scmi_iio.c index 7cf2bf282cef..792807b2894f 100644 --- a/drivers/iio/common/scmi_sensors/scmi_iio.c +++ b/drivers/iio/common/scmi_sensors/scmi_iio.c @@ -631,7 +631,6 @@ static int scmi_iio_dev_probe(struct scmi_device *sdev) err = devm_iio_kfifo_buffer_setup(&scmi_iio_dev->dev, scmi_iio_dev, - INDIO_BUFFER_SOFTWARE, &scmi_iio_buffer_ops); if (err < 0) { dev_err(dev, diff --git a/drivers/iio/gyro/ssp_gyro_sensor.c b/drivers/iio/gyro/ssp_gyro_sensor.c index 46ed12771d2f..eebc036717af 100644 --- a/drivers/iio/gyro/ssp_gyro_sensor.c +++ b/drivers/iio/gyro/ssp_gyro_sensor.c @@ -113,7 +113,6 @@ static int ssp_gyro_probe(struct platform_device *pdev) indio_dev->available_scan_masks = ssp_gyro_scan_mask; ret = devm_iio_kfifo_buffer_setup(&pdev->dev, indio_dev, - INDIO_BUFFER_SOFTWARE, &ssp_gyro_buffer_ops); if (ret) return ret; diff --git a/drivers/iio/health/max30100.c b/drivers/iio/health/max30100.c index 36ba7611d9ce..ad5717965223 100644 --- a/drivers/iio/health/max30100.c +++ b/drivers/iio/health/max30100.c @@ -433,7 +433,6 @@ static int max30100_probe(struct i2c_client *client, indio_dev->modes = INDIO_DIRECT_MODE; ret = devm_iio_kfifo_buffer_setup(&client->dev, indio_dev, - INDIO_BUFFER_SOFTWARE, &max30100_buffer_setup_ops); if (ret) return ret; diff --git a/drivers/iio/health/max30102.c b/drivers/iio/health/max30102.c index 2292876c55e2..abbcef563807 100644 --- a/drivers/iio/health/max30102.c +++ b/drivers/iio/health/max30102.c @@ -542,7 +542,6 @@ static int max30102_probe(struct i2c_client *client, } ret = devm_iio_kfifo_buffer_setup(&client->dev, indio_dev, - INDIO_BUFFER_SOFTWARE, &max30102_buffer_setup_ops); if (ret) return ret; diff --git a/drivers/iio/imu/inv_icm42600/inv_icm42600_accel.c b/drivers/iio/imu/inv_icm42600/inv_icm42600_accel.c index 383cc3250342..c3f433ad3af6 100644 --- a/drivers/iio/imu/inv_icm42600/inv_icm42600_accel.c +++ b/drivers/iio/imu/inv_icm42600/inv_icm42600_accel.c @@ -731,7 +731,6 @@ struct iio_dev *inv_icm42600_accel_init(struct inv_icm42600_state *st) indio_dev->available_scan_masks = inv_icm42600_accel_scan_masks; ret = devm_iio_kfifo_buffer_setup(dev, indio_dev, - INDIO_BUFFER_SOFTWARE, &inv_icm42600_buffer_ops); if (ret) return ERR_PTR(ret); diff --git a/drivers/iio/imu/inv_icm42600/inv_icm42600_gyro.c b/drivers/iio/imu/inv_icm42600/inv_icm42600_gyro.c index cec1dd0e0464..9d94a8518e3c 100644 --- a/drivers/iio/imu/inv_icm42600/inv_icm42600_gyro.c +++ b/drivers/iio/imu/inv_icm42600/inv_icm42600_gyro.c @@ -743,7 +743,6 @@ struct iio_dev *inv_icm42600_gyro_init(struct inv_icm42600_state *st) indio_dev->setup_ops = &inv_icm42600_buffer_ops; ret = devm_iio_kfifo_buffer_setup(dev, indio_dev, - INDIO_BUFFER_SOFTWARE, &inv_icm42600_buffer_ops); if (ret) return ERR_PTR(ret); diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c index 16730a780964..f80c62849d30 100644 --- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c +++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c @@ -746,7 +746,6 @@ int st_lsm6dsx_fifo_setup(struct st_lsm6dsx_hw *hw) continue; ret = devm_iio_kfifo_buffer_setup(hw->dev, hw->iio_devs[i], - INDIO_BUFFER_SOFTWARE, &st_lsm6dsx_buffer_ops); if (ret) return ret; diff --git a/drivers/iio/light/apds9960.c b/drivers/iio/light/apds9960.c index 4141c0fa7bc4..09b831f9f40b 100644 --- a/drivers/iio/light/apds9960.c +++ b/drivers/iio/light/apds9960.c @@ -1003,7 +1003,6 @@ static int apds9960_probe(struct i2c_client *client, indio_dev->modes = INDIO_DIRECT_MODE; ret = devm_iio_kfifo_buffer_setup(&client->dev, indio_dev, - INDIO_BUFFER_SOFTWARE, &apds9960_buffer_setup_ops); if (ret) return ret; diff --git a/drivers/staging/iio/impedance-analyzer/ad5933.c b/drivers/staging/iio/impedance-analyzer/ad5933.c index 793918e1c45f..f177b20f0f2d 100644 --- a/drivers/staging/iio/impedance-analyzer/ad5933.c +++ b/drivers/staging/iio/impedance-analyzer/ad5933.c @@ -749,7 +749,6 @@ static int ad5933_probe(struct i2c_client *client, indio_dev->num_channels = ARRAY_SIZE(ad5933_channels); ret = devm_iio_kfifo_buffer_setup(&client->dev, indio_dev, - INDIO_BUFFER_SOFTWARE, &ad5933_ring_setup_ops); if (ret) return ret; diff --git a/include/linux/iio/kfifo_buf.h b/include/linux/iio/kfifo_buf.h index ccd2ceae7b25..8a83fb58232d 100644 --- a/include/linux/iio/kfifo_buf.h +++ b/include/linux/iio/kfifo_buf.h @@ -12,11 +12,10 @@ void iio_kfifo_free(struct iio_buffer *r); int devm_iio_kfifo_buffer_setup_ext(struct device *dev, struct iio_dev *indio_dev, - int mode_flags, const struct iio_buffer_setup_ops *setup_ops, const struct attribute **buffer_attrs); -#define devm_iio_kfifo_buffer_setup(dev, indio_dev, mode_flags, setup_ops) \ - devm_iio_kfifo_buffer_setup_ext((dev), (indio_dev), (mode_flags), (setup_ops), NULL) +#define devm_iio_kfifo_buffer_setup(dev, indio_dev, setup_ops) \ + devm_iio_kfifo_buffer_setup_ext((dev), (indio_dev), (setup_ops), NULL) #endif