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SubjectRe: [PATCH v7 3/6] mfd: cs42l43: Add support for cs42l43 core driver
On Tue, Aug 29, 2023 at 07:06:28AM -0700, Guenter Roeck wrote:
> On Fri, Aug 04, 2023 at 11:45:59AM +0100, Charles Keepax wrote:
> > The CS42L43 is an audio CODEC with integrated MIPI SoundWire interface
> > (Version 1.2.1 compliant), I2C, SPI, and I2S/TDM interfaces designed
> > for portable applications. It provides a high dynamic range, stereo
> > DAC for headphone output, two integrated Class D amplifiers for
> > loudspeakers, and two ADCs for wired headset microphone input or
> > stereo line input. PDM inputs are provided for digital microphones.
> >
> > The MFD component registers and initialises the device and provides
> > PM/system power management.
> >
> Unfortunately, on systems without pm support:
>
> Building s390:allmodconfig ... failed
> --------------
> Error log:
> drivers/mfd/cs42l43.c:1138:12: error: 'cs42l43_runtime_resume' defined but not used [-Werror=unused-function]
> 1138 | static int cs42l43_runtime_resume(struct device *dev)
> | ^~~~~~~~~~~~~~~~~~~~~~
> drivers/mfd/cs42l43.c:1124:12: error: 'cs42l43_runtime_suspend' defined but not used [-Werror=unused-function]
> 1124 | static int cs42l43_runtime_suspend(struct device *dev)
> | ^~~~~~~~~~~~~~~~~~~~~~~
> drivers/mfd/cs42l43.c:1106:12: error: 'cs42l43_resume' defined but not used [-Werror=unused-function]
> 1106 | static int cs42l43_resume(struct device *dev)
> | ^~~~~~~~~~~~~~
> drivers/mfd/cs42l43.c:1076:12: error: 'cs42l43_suspend' defined but not used [-Werror=unused-function]
> 1076 | static int cs42l43_suspend(struct device *dev)
>

Apologies for this one, a fix is already awaiting review here:

https://lore.kernel.org/lkml/20230822114914.340359-1-ckeepax@opensource.cirrus.com/

Thanks,
Charles

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