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author | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-03-27 11:32:29 -0300 |
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committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-03-27 11:32:29 -0300 |
commit | 50953e0640b3473dcb409d5d0d938c2742c93b0d (patch) | |
tree | 3b0dc374e61564fbbd8adff92c8fae16fdeb423a /drivers/staging/iio/adc/max1363_core.c | |
parent | f92c97c8bd77992ff8bd6ef29a23dc82dca799cb (diff) | |
parent | 626cf236608505d376e4799adb4f7eb00a8594af (diff) | |
download | op-kernel-dev-50953e0640b3473dcb409d5d0d938c2742c93b0d.zip op-kernel-dev-50953e0640b3473dcb409d5d0d938c2742c93b0d.tar.gz |
Merge branch 'poll' into staging/for_v3.4
* poll: (5970 commits)
poll: add poll_requested_events() and poll_does_not_wait() functions
crc32: select an algorithm via Kconfig
crc32: add self-test code for crc32c
crypto: crc32c should use library implementation
crc32: bolt on crc32c
crc32: add note about this patchset to crc32.c
crc32: optimize loop counter for x86
crc32: add slice-by-8 algorithm to existing code
crc32: make CRC_*_BITS definition correspond to actual bit counts
crc32: fix mixing of endian-specific types
crc32: miscellaneous cleanups
crc32: simplify unit test code
crc32: move long comment about crc32 fundamentals to Documentation/
crc32: remove two instances of trailing whitespaces
checkpatch: check for quoted strings broken across lines
checkpatch: whitespace - add/remove blank lines
checkpatch: warn on use of yield()
checkpatch: add --strict tests for braces, comments and casts
checkpatch: add [] to type extensions
checkpatch: high precedence operators do not require additional parentheses in #defines
...
Diffstat (limited to 'drivers/staging/iio/adc/max1363_core.c')
-rw-r--r-- | drivers/staging/iio/adc/max1363_core.c | 50 |
1 files changed, 31 insertions, 19 deletions
diff --git a/drivers/staging/iio/adc/max1363_core.c b/drivers/staging/iio/adc/max1363_core.c index b92cb4a..cf3e2ca 100644 --- a/drivers/staging/iio/adc/max1363_core.c +++ b/drivers/staging/iio/adc/max1363_core.c @@ -341,7 +341,7 @@ static struct iio_chan_spec max1361_channels[] = static struct iio_chan_spec max1363_channels[] = MAX1363_4X_CHANS(12, MAX1363_EV_M); -/* Appies to max1236, max1237 */ +/* Applies to max1236, max1237 */ static const enum max1363_modes max1236_mode_list[] = { _s0, _s1, _s2, _s3, s0to1, s0to2, s0to3, @@ -543,9 +543,9 @@ static int max1363_read_thresh(struct iio_dev *indio_dev, { struct max1363_state *st = iio_priv(indio_dev); if (IIO_EVENT_CODE_EXTRACT_DIR(event_code) == IIO_EV_DIR_FALLING) - *val = st->thresh_low[IIO_EVENT_CODE_EXTRACT_NUM(event_code)]; + *val = st->thresh_low[IIO_EVENT_CODE_EXTRACT_CHAN(event_code)]; else - *val = st->thresh_high[IIO_EVENT_CODE_EXTRACT_NUM(event_code)]; + *val = st->thresh_high[IIO_EVENT_CODE_EXTRACT_CHAN(event_code)]; return 0; } @@ -568,10 +568,10 @@ static int max1363_write_thresh(struct iio_dev *indio_dev, switch (IIO_EVENT_CODE_EXTRACT_DIR(event_code)) { case IIO_EV_DIR_FALLING: - st->thresh_low[IIO_EVENT_CODE_EXTRACT_NUM(event_code)] = val; + st->thresh_low[IIO_EVENT_CODE_EXTRACT_CHAN(event_code)] = val; break; case IIO_EV_DIR_RISING: - st->thresh_high[IIO_EVENT_CODE_EXTRACT_NUM(event_code)] = val; + st->thresh_high[IIO_EVENT_CODE_EXTRACT_CHAN(event_code)] = val; break; } @@ -622,7 +622,7 @@ static int max1363_read_event_config(struct iio_dev *indio_dev, struct max1363_state *st = iio_priv(indio_dev); int val; - int number = IIO_EVENT_CODE_EXTRACT_NUM(event_code); + int number = IIO_EVENT_CODE_EXTRACT_CHAN(event_code); mutex_lock(&indio_dev->mlock); if (IIO_EVENT_CODE_EXTRACT_DIR(event_code) == IIO_EV_DIR_FALLING) val = (1 << number) & st->mask_low; @@ -775,7 +775,7 @@ static int max1363_write_event_config(struct iio_dev *indio_dev, int ret = 0; struct max1363_state *st = iio_priv(indio_dev); u16 unifiedmask; - int number = IIO_EVENT_CODE_EXTRACT_NUM(event_code); + int number = IIO_EVENT_CODE_EXTRACT_CHAN(event_code); mutex_lock(&indio_dev->mlock); unifiedmask = st->mask_low | st->mask_high; @@ -1245,10 +1245,31 @@ static int max1363_initial_setup(struct max1363_state *st) return max1363_set_scan_mode(st); } +static int __devinit max1363_alloc_scan_masks(struct iio_dev *indio_dev) +{ + struct max1363_state *st = iio_priv(indio_dev); + unsigned long *masks; + int i; + + masks = kzalloc(BITS_TO_LONGS(MAX1363_MAX_CHANNELS)*sizeof(long)* + (st->chip_info->num_modes + 1), GFP_KERNEL); + if (!masks) + return -ENOMEM; + + for (i = 0; i < st->chip_info->num_modes; i++) + bitmap_copy(masks + BITS_TO_LONGS(MAX1363_MAX_CHANNELS)*i, + max1363_mode_table[st->chip_info->mode_list[i]] + .modemask, MAX1363_MAX_CHANNELS); + + indio_dev->available_scan_masks = masks; + + return 0; +} + static int __devinit max1363_probe(struct i2c_client *client, const struct i2c_device_id *id) { - int ret, i; + int ret; struct max1363_state *st; struct iio_dev *indio_dev; struct regulator *reg; @@ -1276,19 +1297,10 @@ static int __devinit max1363_probe(struct i2c_client *client, st->chip_info = &max1363_chip_info_tbl[id->driver_data]; st->client = client; - indio_dev->available_scan_masks - = kzalloc(BITS_TO_LONGS(MAX1363_MAX_CHANNELS)*sizeof(long)* - (st->chip_info->num_modes + 1), GFP_KERNEL); - if (!indio_dev->available_scan_masks) { - ret = -ENOMEM; + ret = max1363_alloc_scan_masks(indio_dev); + if (ret) goto error_free_device; - } - for (i = 0; i < st->chip_info->num_modes; i++) - bitmap_copy(indio_dev->available_scan_masks + - BITS_TO_LONGS(MAX1363_MAX_CHANNELS)*i, - max1363_mode_table[st->chip_info->mode_list[i]] - .modemask, MAX1363_MAX_CHANNELS); /* Estabilish that the iio_dev is a child of the i2c device */ indio_dev->dev.parent = &client->dev; indio_dev->name = id->name; |