On 23.09.2013 06:09, Vinod Koul wrote:
> On Sun, Sep 22, 2013 at 04:50:04PM +0200, Daniel Mack wrote:
>> +#ifdef CONFIG_PM_SLEEP
> ahhhh
>
>> +static int cppi41_suspend(struct device *dev)
>> +{
>> + struct cppi41_dd *cdd = dev_get_drvdata(dev);
>> +
>> + cppi_writel(0, cdd->usbss_mem + USBSS_IRQ_CLEARR);
>> + disable_sched(cdd);
>> +
>> + return 0;
>> +}
>> +
>> +static int cppi41_resume(struct device *dev)
>> +{
>> + struct cppi41_dd *cdd = dev_get_drvdata(dev);
>> + int i;
>> +
>> + for (i = 0; i < DESCS_AREAS; i++)
>> + cppi_writel(cdd->descs_phys, cdd->qmgr_mem + QMGR_MEMBASE(i));
>> +
>> + init_sched(cdd);
>> + cppi_writel(USBSS_IRQ_PD_COMP, cdd->usbss_mem + USBSS_IRQ_ENABLER);
>> +
>> + return 0;
>> +}
>> +#endif
>> +
>> +static SIMPLE_DEV_PM_OPS(cppi41_pm_ops, cppi41_suspend, cppi41_resume);
> Here is the macro in pm.h
[...]
> Now since you are using the macro there should be no need to wrap ifdef around
> your code, the macro will take care of it.
Well yes, which is why I put the macro itself *outside* of the #ifdef
block. Without that #ifdef, however, and with CONFIG_PM_SLEEP unset, I get:
drivers/dma/cppi41.c:1043:12: warning: ‘cppi41_suspend’ defined but not
used [-Wunused-function]
static int cppi41_suspend(struct device *dev)
^
drivers/dma/cppi41.c:1053:12: warning: ‘cppi41_resume’ defined but not
used [-Wunused-function]
static int cppi41_resume(struct device *dev)
^
... which doesn't surprise me much. Or do I still not get your point?
Thanks,
Daniel
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