diff options
author | Zubair Lutfullah <zubair.lutfullah@gmail.com> | 2013-09-19 02:24:00 -0400 |
---|---|---|
committer | Jonathan Cameron <jic23@kernel.org> | 2013-09-21 06:47:53 -0400 |
commit | 0f6fc7d56fe56aad5410fdaa7cebbb918580a33c (patch) | |
tree | e5c360c8d25c50294690c9b009678287c65b406e /drivers/iio/adc | |
parent | baee539915e9e89bdebb369229bc0684c86feac2 (diff) |
iio: ti_am335x_adc: optimize memory usage
12 bit ADC data is stored in 32 bits of storage.
Change from u32 to u16 to reduce wasted memory.
Signed-off-by: Zubair Lutfullah <zubair.lutfullah@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Diffstat (limited to 'drivers/iio/adc')
-rw-r--r-- | drivers/iio/adc/ti_am335x_adc.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/iio/adc/ti_am335x_adc.c b/drivers/iio/adc/ti_am335x_adc.c index a952538a1a8b..ebe93eba3ec8 100644 --- a/drivers/iio/adc/ti_am335x_adc.c +++ b/drivers/iio/adc/ti_am335x_adc.c | |||
@@ -122,7 +122,7 @@ static int tiadc_channel_init(struct iio_dev *indio_dev, int channels) | |||
122 | chan->datasheet_name = chan_name_ain[chan->channel]; | 122 | chan->datasheet_name = chan_name_ain[chan->channel]; |
123 | chan->scan_type.sign = 'u'; | 123 | chan->scan_type.sign = 'u'; |
124 | chan->scan_type.realbits = 12; | 124 | chan->scan_type.realbits = 12; |
125 | chan->scan_type.storagebits = 32; | 125 | chan->scan_type.storagebits = 16; |
126 | } | 126 | } |
127 | 127 | ||
128 | indio_dev->channels = chan_array; | 128 | indio_dev->channels = chan_array; |
@@ -186,7 +186,7 @@ static int tiadc_read_raw(struct iio_dev *indio_dev, | |||
186 | if (stepid == map_val) { | 186 | if (stepid == map_val) { |
187 | read = read & FIFOREAD_DATA_MASK; | 187 | read = read & FIFOREAD_DATA_MASK; |
188 | found = true; | 188 | found = true; |
189 | *val = read; | 189 | *val = (u16) read; |
190 | } | 190 | } |
191 | } | 191 | } |
192 | 192 | ||