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.cirr...
Thanks, Charles