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author | William Breathitt Gray <vilhelm.gray@gmail.com> | 2016-05-02 00:44:11 +0200 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-05-02 18:32:04 +0200 |
commit | 9c2cfc19e64a513a1b9e55f78e38661a1b97b91e (patch) | |
tree | a4f99fe4bad5ea50c9897f22c9ea9eff8cd7057a /drivers/iio/dac | |
parent | iio: stx104: Add X86 dependency to STX104 Kconfig option (diff) | |
download | linux-9c2cfc19e64a513a1b9e55f78e38661a1b97b91e.tar.xz linux-9c2cfc19e64a513a1b9e55f78e38661a1b97b91e.zip |
iio: stx104: Utilize the module_isa_driver and max_num_isa_dev macros
The Apex Embedded Systems STX104 DAC drivers does not do anything
special in module init/exit. This patch eliminates the module init/exit
boilerplate code by utilizing the module_isa_driver macro.
Additionally, the max_num_isa_dev macro is utilized to simplify the
determination of maximum possible STX104 devices in the system.
Cc: Jonathan Cameron <jic23@kernel.org>
Cc: Hartmut Knaack <knaack.h@gmx.de>
Cc: Lars-Peter Clausen <lars@metafoo.de>
Cc: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/iio/dac')
-rw-r--r-- | drivers/iio/dac/stx104.c | 24 |
1 files changed, 3 insertions, 21 deletions
diff --git a/drivers/iio/dac/stx104.c b/drivers/iio/dac/stx104.c index 174f4b75ceed..27941220872f 100644 --- a/drivers/iio/dac/stx104.c +++ b/drivers/iio/dac/stx104.c @@ -33,16 +33,9 @@ } #define STX104_EXTENT 16 -/** - * The highest base address possible for an ISA device is 0x3FF; this results in - * 1024 possible base addresses. Dividing the number of possible base addresses - * by the address extent taken by each device results in the maximum number of - * devices on a system. - */ -#define MAX_NUM_STX104 (1024 / STX104_EXTENT) -static unsigned base[MAX_NUM_STX104]; -static unsigned num_stx104; +static unsigned int base[max_num_isa_dev(STX104_EXTENT)]; +static unsigned int num_stx104; module_param_array(base, uint, &num_stx104, 0); MODULE_PARM_DESC(base, "Apex Embedded Systems STX104 base addresses"); @@ -134,18 +127,7 @@ static struct isa_driver stx104_driver = { } }; -static void __exit stx104_exit(void) -{ - isa_unregister_driver(&stx104_driver); -} - -static int __init stx104_init(void) -{ - return isa_register_driver(&stx104_driver, num_stx104); -} - -module_init(stx104_init); -module_exit(stx104_exit); +module_isa_driver(stx104_driver, num_stx104); MODULE_AUTHOR("William Breathitt Gray <vilhelm.gray@gmail.com>"); MODULE_DESCRIPTION("Apex Embedded Systems STX104 DAC driver"); |