Input: cma3000 - use pm_sleep_ptr() to allow removal of ifdef CONFIG_PM guards

As the guards only apply to suspend and resume, #ifdef CONFIG_PM_SLEEP
would have been a tighter protection. As pm_sleep_ptr() lets the compiler
see the protected ops structure and callbacks but also lets the compiler
remove it as unused code if !CONFIG_PM_SLEEP this allows the #ifdef
guards to be removed, slightly simplifying the resulting code.

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
--
It seems likely that DEFINE_SIMPLE_DEV_PM_OPS() would work here but
I'd prefer not to make that change unless someone can confirm that the
extra callbacks registered will have no unwanted side effects in this
driver.

Link: https://lore.kernel.org/r/20230114171620.42891-16-jic23@kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

diff --git a/drivers/input/misc/cma3000_d0x_i2c.c b/drivers/input/misc/cma3000_d0x_i2c.c
index 75442c1230b19083c40349884ad201d30bda39b0..136eb3715870cdc6ac0783683d9b5721a150e196 100644 (file)
--- a/drivers/input/misc/cma3000_d0x_i2c.c
+++ b/drivers/input/misc/cma3000_d0x_i2c.c
@@ -64,7 +64,6 @@ static void cma3000_i2c_remove(struct i2c_client *client)
        cma3000_exit(data);
 }
 
-#ifdef CONFIG_PM
 static int cma3000_i2c_suspend(struct device *dev)
 {
        struct i2c_client *client = to_i2c_client(dev);
@@ -89,7 +88,6 @@ static const struct dev_pm_ops cma3000_i2c_pm_ops = {
        .suspend        = cma3000_i2c_suspend,
        .resume         = cma3000_i2c_resume,
 };
-#endif
 
 static const struct i2c_device_id cma3000_i2c_id[] = {
        { "cma3000_d01", 0 },
@@ -104,9 +102,7 @@ static struct i2c_driver cma3000_i2c_driver = {
        .id_table       = cma3000_i2c_id,
        .driver = {
                .name   = "cma3000_i2c_accl",
-#ifdef CONFIG_PM
-               .pm     = &cma3000_i2c_pm_ops,
-#endif
+               .pm     = pm_sleep_ptr(&cma3000_i2c_pm_ops),
        },
 };