Input: cyttsp - use EXPORT_GPL_SIMPLE_DEV_PM_OPS()

SIMPLE_DEV_PM_OPS() is deprecated as it requires explicit protection
against unused function warnings. The new combination of pm_sleep_ptr()
and EXPORT_GPL_SIMPLE_DEV_PMU_OPS() allows the compiler to see the
functions, thus suppressing the warning, but still allowing the unused
code to be removed. Thus also drop the __maybe_unused markings.
It also rolls in the EXPORT_SYMBOL() so that we only export it
if CONFIG_PM_SLEEP.

Signed-off-by: Jonathan Cameron <[e-mail]>
Cc: Javier Martinez Canillas <[e-mail]>
Cc: Linus Walleij <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Dmitry Torokhov <[e-mail]>

drivers/input/touchscreen/cyttsp_core.c

···
 	return 0;
 }
 
-static int __maybe_unused cyttsp_suspend(struct device *dev)
+static int cyttsp_suspend(struct device *dev)
 {
 	struct cyttsp *ts = dev_get_drvdata(dev);
 	int retval = 0;
···
 	return retval;
 }
 
-static int __maybe_unused cyttsp_resume(struct device *dev)
+static int cyttsp_resume(struct device *dev)
 {
 	struct cyttsp *ts = dev_get_drvdata(dev);
 
···
 	return 0;
 }
 
-SIMPLE_DEV_PM_OPS(cyttsp_pm_ops, cyttsp_suspend, cyttsp_resume);
-EXPORT_SYMBOL_GPL(cyttsp_pm_ops);
+EXPORT_GPL_SIMPLE_DEV_PM_OPS(cyttsp_pm_ops, cyttsp_suspend, cyttsp_resume);
 
 static int cyttsp_open(struct input_dev *dev)
 {

drivers/input/touchscreen/cyttsp_i2c.c

···
 static struct i2c_driver cyttsp_i2c_driver = {
 	.driver = {
 		.name	= CY_I2C_NAME,
-		.pm	= &cyttsp_pm_ops,
+		.pm	= pm_sleep_ptr(&cyttsp_pm_ops),
 		.of_match_table = cyttsp_of_i2c_match,
 	},
 	.probe_new	= cyttsp_i2c_probe,

drivers/input/touchscreen/cyttsp_spi.c

···
 static struct spi_driver cyttsp_spi_driver = {
 	.driver = {
 		.name	= CY_SPI_NAME,
-		.pm	= &cyttsp_pm_ops,
+		.pm	= pm_sleep_ptr(&cyttsp_pm_ops),
 		.of_match_table = cyttsp_of_spi_match,
 	},
 	.probe  = cyttsp_spi_probe,