From: Brian Masney Date: Thu, 6 Jul 2017 22:56:23 +0000 (-0400) Subject: staging: iio: tsl2x7x: refactor {read,write}_event_value to allow handling multiple... X-Git-Tag: v4.14-rc1~148^2~364^2~31 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=be78f70ce0d11aa5767a859e1abdc522c1748c44;p=platform%2Fkernel%2Flinux-rpi.git staging: iio: tsl2x7x: refactor {read,write}_event_value to allow handling multiple iio_event_infos tsl2x7x_read_thresh() and tsl2x7x_write_thresh() currently assumes that IIO_EV_INFO_VALUE is the only iio_event_info that will be passed in. This patch refactors these two functions so that additional iio_event_infos can be passed in. The functions are renamed from tsl2x7x_{read,write}_thresh() to tsl2x7x_{read,write}_event_value(). This patch also adds the missing return value check to tsl2x7x_invoke_change() since this was previously missing. This patch is in preparation for moving the in_intensity0_thresh_period and in_proximity0_thresh_period sysfs attributes to be created by iio_event_spec. Signed-off-by: Brian Masney Signed-off-by: Jonathan Cameron --- diff --git a/drivers/staging/iio/light/tsl2x7x.c b/drivers/staging/iio/light/tsl2x7x.c index 5734628..d80f5dc 100644 --- a/drivers/staging/iio/light/tsl2x7x.c +++ b/drivers/staging/iio/light/tsl2x7x.c @@ -1218,78 +1218,101 @@ static int tsl2x7x_write_interrupt_config(struct iio_dev *indio_dev, return 0; } -static int tsl2x7x_write_thresh(struct iio_dev *indio_dev, - const struct iio_chan_spec *chan, - enum iio_event_type type, - enum iio_event_direction dir, - enum iio_event_info info, - int val, int val2) +static int tsl2x7x_write_event_value(struct iio_dev *indio_dev, + const struct iio_chan_spec *chan, + enum iio_event_type type, + enum iio_event_direction dir, + enum iio_event_info info, + int val, int val2) { struct tsl2X7X_chip *chip = iio_priv(indio_dev); + int ret = -EINVAL; - if (chan->type == IIO_INTENSITY) { - switch (dir) { - case IIO_EV_DIR_RISING: - chip->tsl2x7x_settings.als_thresh_high = val; - break; - case IIO_EV_DIR_FALLING: - chip->tsl2x7x_settings.als_thresh_low = val; - break; - default: - return -EINVAL; - } - } else { - switch (dir) { - case IIO_EV_DIR_RISING: - chip->tsl2x7x_settings.prox_thres_high = val; - break; - case IIO_EV_DIR_FALLING: - chip->tsl2x7x_settings.prox_thres_low = val; - break; - default: - return -EINVAL; + switch (info) { + case IIO_EV_INFO_VALUE: + if (chan->type == IIO_INTENSITY) { + switch (dir) { + case IIO_EV_DIR_RISING: + chip->tsl2x7x_settings.als_thresh_high = val; + ret = 0; + break; + case IIO_EV_DIR_FALLING: + chip->tsl2x7x_settings.als_thresh_low = val; + ret = 0; + break; + default: + break; + } + } else { + switch (dir) { + case IIO_EV_DIR_RISING: + chip->tsl2x7x_settings.prox_thres_high = val; + ret = 0; + break; + case IIO_EV_DIR_FALLING: + chip->tsl2x7x_settings.prox_thres_low = val; + ret = 0; + break; + default: + break; + } } + break; + default: + break; } - tsl2x7x_invoke_change(indio_dev); + if (ret < 0) + return ret; - return 0; + return tsl2x7x_invoke_change(indio_dev); } -static int tsl2x7x_read_thresh(struct iio_dev *indio_dev, - const struct iio_chan_spec *chan, - enum iio_event_type type, - enum iio_event_direction dir, - enum iio_event_info info, - int *val, int *val2) +static int tsl2x7x_read_event_value(struct iio_dev *indio_dev, + const struct iio_chan_spec *chan, + enum iio_event_type type, + enum iio_event_direction dir, + enum iio_event_info info, + int *val, int *val2) { struct tsl2X7X_chip *chip = iio_priv(indio_dev); + int ret = -EINVAL; - if (chan->type == IIO_INTENSITY) { - switch (dir) { - case IIO_EV_DIR_RISING: - *val = chip->tsl2x7x_settings.als_thresh_high; - break; - case IIO_EV_DIR_FALLING: - *val = chip->tsl2x7x_settings.als_thresh_low; - break; - default: - return -EINVAL; - } - } else { - switch (dir) { - case IIO_EV_DIR_RISING: - *val = chip->tsl2x7x_settings.prox_thres_high; - break; - case IIO_EV_DIR_FALLING: - *val = chip->tsl2x7x_settings.prox_thres_low; - break; - default: - return -EINVAL; + switch (info) { + case IIO_EV_INFO_VALUE: + if (chan->type == IIO_INTENSITY) { + switch (dir) { + case IIO_EV_DIR_RISING: + *val = chip->tsl2x7x_settings.als_thresh_high; + ret = IIO_VAL_INT; + break; + case IIO_EV_DIR_FALLING: + *val = chip->tsl2x7x_settings.als_thresh_low; + ret = IIO_VAL_INT; + break; + default: + break; + } + } else { + switch (dir) { + case IIO_EV_DIR_RISING: + *val = chip->tsl2x7x_settings.prox_thres_high; + ret = IIO_VAL_INT; + break; + case IIO_EV_DIR_FALLING: + *val = chip->tsl2x7x_settings.prox_thres_low; + ret = IIO_VAL_INT; + break; + default: + break; + } } + break; + default: + break; } - return IIO_VAL_INT; + return ret; } static int tsl2x7x_read_raw(struct iio_dev *indio_dev, @@ -1614,8 +1637,8 @@ static const struct iio_info tsl2X7X_device_info[] = { .driver_module = THIS_MODULE, .read_raw = &tsl2x7x_read_raw, .write_raw = &tsl2x7x_write_raw, - .read_event_value = &tsl2x7x_read_thresh, - .write_event_value = &tsl2x7x_write_thresh, + .read_event_value = &tsl2x7x_read_event_value, + .write_event_value = &tsl2x7x_write_event_value, .read_event_config = &tsl2x7x_read_interrupt_config, .write_event_config = &tsl2x7x_write_interrupt_config, }, @@ -1625,8 +1648,8 @@ static const struct iio_info tsl2X7X_device_info[] = { .driver_module = THIS_MODULE, .read_raw = &tsl2x7x_read_raw, .write_raw = &tsl2x7x_write_raw, - .read_event_value = &tsl2x7x_read_thresh, - .write_event_value = &tsl2x7x_write_thresh, + .read_event_value = &tsl2x7x_read_event_value, + .write_event_value = &tsl2x7x_write_event_value, .read_event_config = &tsl2x7x_read_interrupt_config, .write_event_config = &tsl2x7x_write_interrupt_config, }, @@ -1636,8 +1659,8 @@ static const struct iio_info tsl2X7X_device_info[] = { .driver_module = THIS_MODULE, .read_raw = &tsl2x7x_read_raw, .write_raw = &tsl2x7x_write_raw, - .read_event_value = &tsl2x7x_read_thresh, - .write_event_value = &tsl2x7x_write_thresh, + .read_event_value = &tsl2x7x_read_event_value, + .write_event_value = &tsl2x7x_write_event_value, .read_event_config = &tsl2x7x_read_interrupt_config, .write_event_config = &tsl2x7x_write_interrupt_config, }, @@ -1647,8 +1670,8 @@ static const struct iio_info tsl2X7X_device_info[] = { .driver_module = THIS_MODULE, .read_raw = &tsl2x7x_read_raw, .write_raw = &tsl2x7x_write_raw, - .read_event_value = &tsl2x7x_read_thresh, - .write_event_value = &tsl2x7x_write_thresh, + .read_event_value = &tsl2x7x_read_event_value, + .write_event_value = &tsl2x7x_write_event_value, .read_event_config = &tsl2x7x_read_interrupt_config, .write_event_config = &tsl2x7x_write_interrupt_config, }, @@ -1658,8 +1681,8 @@ static const struct iio_info tsl2X7X_device_info[] = { .driver_module = THIS_MODULE, .read_raw = &tsl2x7x_read_raw, .write_raw = &tsl2x7x_write_raw, - .read_event_value = &tsl2x7x_read_thresh, - .write_event_value = &tsl2x7x_write_thresh, + .read_event_value = &tsl2x7x_read_event_value, + .write_event_value = &tsl2x7x_write_event_value, .read_event_config = &tsl2x7x_read_interrupt_config, .write_event_config = &tsl2x7x_write_interrupt_config, },