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SubjectRe: [PATCH] iio: adc: mxs-lradc: Prefer using the BIT macro
Hi Nizam,

[auto build test WARNING on staging/staging-testing]
[also build test WARNING on v4.3 next-20151109]

url: https://github.com/0day-ci/linux/commits/Nizam-Haider/iio-adc-mxs-lradc-Prefer-using-the-BIT-macro/20151109-222735
config: sparc64-allyesconfig (attached as .config)
reproduce:
wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
make.cross ARCH=sparc64

All warnings (new ones prefixed by >>):

drivers/staging/iio/adc/mxs-lradc.c: In function 'mxs_lradc_complete_touch_event':
>> drivers/staging/iio/adc/mxs-lradc.c:325:5: warning: large integer implicitly truncated to unsigned type [-Woverflow]
(((x) << LRADC_DELAY_TRIGGER_LRADCS_OFFSET) & \
^
>> drivers/staging/iio/adc/mxs-lradc.c:734:7: note: in expansion of macro 'LRADC_DELAY_TRIGGER'
LRADC_DELAY_TRIGGER(1 << TOUCHSCREEN_VCHANNEL1) |
^
drivers/staging/iio/adc/mxs-lradc.c: In function 'mxs_lradc_buffer_preenable':
drivers/staging/iio/adc/mxs-lradc.c:322:42: warning: large integer implicitly truncated to unsigned type [-Woverflow]
#define LRADC_DELAY_TRIGGER_LRADCS_MASK (0xff << 24)
^
>> drivers/staging/iio/adc/mxs-lradc.c:1308:29: note: in expansion of macro 'LRADC_DELAY_TRIGGER_LRADCS_MASK'
mxs_lradc_reg_clear(lradc, LRADC_DELAY_TRIGGER_LRADCS_MASK |
^
drivers/staging/iio/adc/mxs-lradc.c: In function 'mxs_lradc_buffer_postdisable':
drivers/staging/iio/adc/mxs-lradc.c:322:42: warning: large integer implicitly truncated to unsigned type [-Woverflow]
#define LRADC_DELAY_TRIGGER_LRADCS_MASK (0xff << 24)
^
drivers/staging/iio/adc/mxs-lradc.c:1327:29: note: in expansion of macro 'LRADC_DELAY_TRIGGER_LRADCS_MASK'
mxs_lradc_reg_clear(lradc, LRADC_DELAY_TRIGGER_LRADCS_MASK |
^

vim +325 drivers/staging/iio/adc/mxs-lradc.c

06ddd353 Marek Vasut 2013-01-11 309 #define LRADC_STATUS 0x40
418880f5 Haneen Mohammed 2015-03-26 310 #define LRADC_STATUS_TOUCH_DETECT_RAW BIT(0)
06ddd353 Marek Vasut 2013-01-11 311
bc2c90c9 Marek Vasut 2012-08-12 312 #define LRADC_CH(n) (0x50 + (0x10 * (n)))
418880f5 Haneen Mohammed 2015-03-26 313 #define LRADC_CH_ACCUMULATE BIT(29)
bc2c90c9 Marek Vasut 2012-08-12 314 #define LRADC_CH_NUM_SAMPLES_MASK (0x1f << 24)
bc2c90c9 Marek Vasut 2012-08-12 315 #define LRADC_CH_NUM_SAMPLES_OFFSET 24
dee05308 Juergen Beisert 2013-09-23 316 #define LRADC_CH_NUM_SAMPLES(x) \
dee05308 Juergen Beisert 2013-09-23 317 ((x) << LRADC_CH_NUM_SAMPLES_OFFSET)
bc2c90c9 Marek Vasut 2012-08-12 318 #define LRADC_CH_VALUE_MASK 0x3ffff
bc2c90c9 Marek Vasut 2012-08-12 319 #define LRADC_CH_VALUE_OFFSET 0
bc2c90c9 Marek Vasut 2012-08-12 320
bc2c90c9 Marek Vasut 2012-08-12 321 #define LRADC_DELAY(n) (0xd0 + (0x10 * (n)))
bc2c90c9 Marek Vasut 2012-08-12 322 #define LRADC_DELAY_TRIGGER_LRADCS_MASK (0xff << 24)
bc2c90c9 Marek Vasut 2012-08-12 323 #define LRADC_DELAY_TRIGGER_LRADCS_OFFSET 24
dee05308 Juergen Beisert 2013-09-23 324 #define LRADC_DELAY_TRIGGER(x) \
dee05308 Juergen Beisert 2013-09-23 @325 (((x) << LRADC_DELAY_TRIGGER_LRADCS_OFFSET) & \
dee05308 Juergen Beisert 2013-09-23 326 LRADC_DELAY_TRIGGER_LRADCS_MASK)
33365872 Nizam Haider 2015-11-09 327 #define LRADC_DELAY_KICK BIT(20)
bc2c90c9 Marek Vasut 2012-08-12 328 #define LRADC_DELAY_TRIGGER_DELAYS_MASK (0xf << 16)
bc2c90c9 Marek Vasut 2012-08-12 329 #define LRADC_DELAY_TRIGGER_DELAYS_OFFSET 16
dee05308 Juergen Beisert 2013-09-23 330 #define LRADC_DELAY_TRIGGER_DELAYS(x) \
dee05308 Juergen Beisert 2013-09-23 331 (((x) << LRADC_DELAY_TRIGGER_DELAYS_OFFSET) & \
dee05308 Juergen Beisert 2013-09-23 332 LRADC_DELAY_TRIGGER_DELAYS_MASK)
bc2c90c9 Marek Vasut 2012-08-12 333 #define LRADC_DELAY_LOOP_COUNT_MASK (0x1f << 11)

:::::: The code at line 325 was first introduced by commit
:::::: dee05308f6029caed91e1a015cafb1545958ba27 Staging/iio/adc/touchscreen/MXS: add interrupt driven touch detection

:::::: TO: Juergen Beisert <jbe@pengutronix.de>
:::::: CC: Jonathan Cameron <jic23@kernel.org>

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