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* iio: frequency: ADF4350: Fix potential reference div factor overflow.Michael Hennerich2012-08-161-9/+15
| | | | | | | | | | | | With small channel spacing values and high reference frequencies it is possible to exceed the range of the 10-bit counter. Workaround by checking the range and widening some constrains. We don't use the REG1_PHASE value in this case the datasheet recommends to set it to 1 if not used. Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
* iio: ad9523: Fix argument type mismatchMichael Hennerich2012-06-121-1/+1
| | | | | | | | | drivers/iio/frequency/ad9523.c:378 ad9523_vco_out_map() warn: value 2 can't fit into 1 'out' Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* iio: frequency: adf4350: using an uninitialized variableDan Carpenter2012-06-121-2/+2
| | | | | | | | | | | | | | GCC complains that we use an uninitialized variable if the user passes an invalid parameter to adf4350_read(). I decided that we should return -EINVAL instead in that case. However, when I looked up at adf4350_write() it returned -ENODEV for that condition. In the end, I decided the -EINVAL was the right thing and I change adf4350_write() to match. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* iio: frequency: adf4350: fix an initializationDan Carpenter2012-06-121-1/+1
| | | | | | | | | | | | Sparse complains about this: drivers/iio/frequency/adf4350.c:58:29: warning: Initializer entry defined twice drivers/iio/frequency/adf4350.c:59:10: also defined here It looks like '|' was intended here instead of ','. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* iio: frequency: ad9523: unlock on error in ad9523_reg_access()Dan Carpenter2012-06-121-1/+3
| | | | | | | | There was a return path which got missed accidentally. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* iio: adf4350: fix compiler warning [-Wuninitialized]Michael Hennerich2012-06-071-0/+2
| | | | | | | | | drivers/iio/frequency/adf4350.c:316:32: warning: ‘val’ may be used uninitialized in this function [-Wuninitialized] Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Reported-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* iio: frequency: New driver for Analog Devices ADF4350/ADF4351 Wideband ↵Michael Hennerich2012-06-043-0/+497
| | | | | | | | | | | | | | | | | | | | | | | | | Synthesizers Changes since V1: Apply Jonathan's review feedback: Introduce and use IIO_ALTVOLTAGE. Fix up comments and documentation. Remove dead code. Reorder some code fragments. Add missing iio_device_free. Convert to new API. Fix-up out of staging includes. Removed pll_locked attribute. Changes since V2: Use module_spi_driver. adf4350_remove: move gpio_free after regulator. target patch to drivers/iio Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Acked-by: Jonathan Cameron <jic23@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* iio: frequency: New driver for AD9523 SPI Low Jitter Clock GeneratorMichael Hennerich2012-06-043-0/+1085
Changes since V1: Apply Jonathan's review feedback: Revise device status attribute names, and split documentation into two sections. Add additional comments, and fix indention issues. Remove pointless zero initializations. Revise return value handling. Simplify some code sections. Split store_eeprom and sync handling into separate functions. Use strtobool where applicable. Document platform data structures using kernel-doc style. Use dev_to_iio_dev write_raw IIO_CHAN_INFO_FREQUENCY: Reject values <= 0 Make patch target drivers/iio Changes since V2: Use for_each_clear_bit() and __set_bit() where applicable. Add descriptive comment. Avoid temporary for struct regulator. spi_device_id name use ad9523-1, ad9523 will be added later. Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Acked-by: Jonathan Cameron <jic23@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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