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spi: cadence: mark pm functions __maybe_unused 

The newly added runtime PM support for the cadence spi driver
causes harmless warnings when PM is disabled:

drivers/spi/spi-cadence.c:681:12: warning: 'cnds_runtime_suspend' defined but not used
drivers/spi/spi-cadence.c:652:12: warning: 'cnds_runtime_resume' defined but not used

This adds __maybe_unused annotations to the respective functions
to shut up the warnings, while leaving the code in place for
compile testing and avoiding ugly #ifdefs.

Fixes: d36ccd9f7e ("spi: cadence: Runtime pm adaptation")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Shubhrajyoti Datta <shubhraj@xilinx.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
hifive-unleashed-5.1
Arnd Bergmann 2016-04-16 22:39:21 +02:00 committed by Mark Brown
parent 57bb1369de
commit 148b1eb93c
1 changed files with 2 additions and 2 deletions
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4
drivers/spi/spi-cadence.c
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@ -651,7 +651,7 @@ static int __maybe_unused cdns_spi_resume(struct device *dev)
*
* Return: 0 on success and error value on error
*/
static int cnds_runtime_resume(struct device *dev)
static int __maybe_unused cnds_runtime_resume(struct device *dev)
{
struct spi_master *master = dev_get_drvdata(dev);
struct cdns_spi *xspi = spi_master_get_devdata(master);
@ -680,7 +680,7 @@ static int cnds_runtime_resume(struct device *dev)
*
* Return: Always 0
*/
static int cnds_runtime_suspend(struct device *dev)
static int __maybe_unused cnds_runtime_suspend(struct device *dev)
{
struct spi_master *master = dev_get_drvdata(dev);
struct cdns_spi *xspi = spi_master_get_devdata(master);