From 95d22154d6bb980a80d59e500e8350d9a0e03f92 Mon Sep 17 00:00:00 2001 From: Brian Masney Date: Thu, 3 May 2018 22:53:11 -0400 Subject: staging: iio: tsl2x7x: don't setup event handlers if interrupts are not configured The driver would expose to userspace the events directory even if the interrupts were not configured. This patch changes the driver so that the events directory is not exposed to user space if interrupts are not configured. This patch also corrects the indentation of the chan_table_elements and info structure members. Signed-off-by: Brian Masney Signed-off-by: Jonathan Cameron --- drivers/staging/iio/light/tsl2x7x.c | 130 +++++++++++++++++++++++++++++++----- 1 file changed, 112 insertions(+), 18 deletions(-) (limited to 'drivers/staging/iio') diff --git a/drivers/staging/iio/light/tsl2x7x.c b/drivers/staging/iio/light/tsl2x7x.c index b4d77f6..7e8db51 100644 --- a/drivers/staging/iio/light/tsl2x7x.c +++ b/drivers/staging/iio/light/tsl2x7x.c @@ -134,8 +134,9 @@ struct tsl2x7x_als_info { struct tsl2x7x_chip_info { int chan_table_elements; - struct iio_chan_spec channel[4]; - const struct iio_info *info; + struct iio_chan_spec channel_with_events[4]; + struct iio_chan_spec channel_without_events[4]; + const struct iio_info *info; }; struct tsl2X7X_chip { @@ -1447,7 +1448,7 @@ static const struct iio_event_spec tsl2x7x_events[] = { static const struct tsl2x7x_chip_info tsl2x7x_chip_info_tbl[] = { [ALS] = { - .channel = { + .channel_with_events = { { .type = IIO_LIGHT, .indexed = 1, @@ -1469,11 +1470,31 @@ static const struct tsl2x7x_chip_info tsl2x7x_chip_info_tbl[] = { .channel = 1, }, }, - .chan_table_elements = 3, - .info = &tsl2X7X_device_info[ALS], + .channel_without_events = { + { + .type = IIO_LIGHT, + .indexed = 1, + .channel = 0, + .info_mask_separate = BIT(IIO_CHAN_INFO_PROCESSED), + }, { + .type = IIO_INTENSITY, + .indexed = 1, + .channel = 0, + .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | + BIT(IIO_CHAN_INFO_INT_TIME) | + BIT(IIO_CHAN_INFO_CALIBSCALE) | + BIT(IIO_CHAN_INFO_CALIBBIAS), + }, { + .type = IIO_INTENSITY, + .indexed = 1, + .channel = 1, + }, + }, + .chan_table_elements = 3, + .info = &tsl2X7X_device_info[ALS], }, [PRX] = { - .channel = { + .channel_with_events = { { .type = IIO_PROXIMITY, .indexed = 1, @@ -1483,11 +1504,19 @@ static const struct tsl2x7x_chip_info tsl2x7x_chip_info_tbl[] = { .num_event_specs = ARRAY_SIZE(tsl2x7x_events), }, }, - .chan_table_elements = 1, - .info = &tsl2X7X_device_info[PRX], + .channel_without_events = { + { + .type = IIO_PROXIMITY, + .indexed = 1, + .channel = 0, + .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), + }, + }, + .chan_table_elements = 1, + .info = &tsl2X7X_device_info[PRX], }, [ALSPRX] = { - .channel = { + .channel_with_events = { { .type = IIO_LIGHT, .indexed = 1, @@ -1517,11 +1546,37 @@ static const struct tsl2x7x_chip_info tsl2x7x_chip_info_tbl[] = { .num_event_specs = ARRAY_SIZE(tsl2x7x_events), }, }, - .chan_table_elements = 4, - .info = &tsl2X7X_device_info[ALSPRX], + .channel_without_events = { + { + .type = IIO_LIGHT, + .indexed = 1, + .channel = 0, + .info_mask_separate = BIT(IIO_CHAN_INFO_PROCESSED), + }, { + .type = IIO_INTENSITY, + .indexed = 1, + .channel = 0, + .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | + BIT(IIO_CHAN_INFO_INT_TIME) | + BIT(IIO_CHAN_INFO_CALIBSCALE) | + BIT(IIO_CHAN_INFO_CALIBBIAS), + }, { + .type = IIO_INTENSITY, + .indexed = 1, + .channel = 1, + .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), + }, { + .type = IIO_PROXIMITY, + .indexed = 1, + .channel = 0, + .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), + }, + }, + .chan_table_elements = 4, + .info = &tsl2X7X_device_info[ALSPRX], }, [PRX2] = { - .channel = { + .channel_with_events = { { .type = IIO_PROXIMITY, .indexed = 1, @@ -1532,11 +1587,20 @@ static const struct tsl2x7x_chip_info tsl2x7x_chip_info_tbl[] = { .num_event_specs = ARRAY_SIZE(tsl2x7x_events), }, }, - .chan_table_elements = 1, - .info = &tsl2X7X_device_info[PRX2], + .channel_without_events = { + { + .type = IIO_PROXIMITY, + .indexed = 1, + .channel = 0, + .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | + BIT(IIO_CHAN_INFO_CALIBSCALE), + }, + }, + .chan_table_elements = 1, + .info = &tsl2X7X_device_info[PRX2], }, [ALSPRX2] = { - .channel = { + .channel_with_events = { { .type = IIO_LIGHT, .indexed = 1, @@ -1567,8 +1631,35 @@ static const struct tsl2x7x_chip_info tsl2x7x_chip_info_tbl[] = { .num_event_specs = ARRAY_SIZE(tsl2x7x_events), }, }, - .chan_table_elements = 4, - .info = &tsl2X7X_device_info[ALSPRX2], + .channel_without_events = { + { + .type = IIO_LIGHT, + .indexed = 1, + .channel = 0, + .info_mask_separate = BIT(IIO_CHAN_INFO_PROCESSED), + }, { + .type = IIO_INTENSITY, + .indexed = 1, + .channel = 0, + .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | + BIT(IIO_CHAN_INFO_INT_TIME) | + BIT(IIO_CHAN_INFO_CALIBSCALE) | + BIT(IIO_CHAN_INFO_CALIBBIAS), + }, { + .type = IIO_INTENSITY, + .indexed = 1, + .channel = 1, + .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), + }, { + .type = IIO_PROXIMITY, + .indexed = 1, + .channel = 0, + .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | + BIT(IIO_CHAN_INFO_CALIBSCALE), + }, + }, + .chan_table_elements = 4, + .info = &tsl2X7X_device_info[ALSPRX2], }, }; @@ -1620,10 +1711,11 @@ static int tsl2x7x_probe(struct i2c_client *clientp, indio_dev->dev.parent = &clientp->dev; indio_dev->modes = INDIO_DIRECT_MODE; indio_dev->name = chip->client->name; - indio_dev->channels = chip->chip_info->channel; indio_dev->num_channels = chip->chip_info->chan_table_elements; if (clientp->irq) { + indio_dev->channels = chip->chip_info->channel_with_events; + ret = devm_request_threaded_irq(&clientp->dev, clientp->irq, NULL, &tsl2x7x_event_handler, @@ -1636,6 +1728,8 @@ static int tsl2x7x_probe(struct i2c_client *clientp, "%s: irq request failed\n", __func__); return ret; } + } else { + indio_dev->channels = chip->chip_info->channel_without_events; } tsl2x7x_defaults(chip); -- cgit v1.1