[PATCH V3] spi: cadence-quadspi: use macro DEFINE_SIMPLE_DEV_PM_OPS

[Dhruva Gole]

Using this macro makes the code more readable.
It also inits the members of dev_pm_ops in the following manner
without us explicitly needing to:

.suspend = cqspi_suspend, \
.resume = cqspi_resume, \
.freeze = cqspi_suspend, \
.thaw = cqspi_resume, \
.poweroff = cqspi_suspend, \
.restore = cqspi_resume

Also get rid of conditional compilation based on CONFIG_PM_SLEEP because
it introduces build issues with certain configs when CQSPI_DEV_PM_OPS is
just NULL.

Reported-by: kernel test robot <lkp@xxxxxxxxx>
Link: https://lore.kernel.org/oe-kbuild-all/202304191900.2fARFQW9-lkp@xxxxxxxxx/
Fixes: 140623410536 ("mtd: spi-nor: Add driver for Cadence Quad SPI Flash Controller")
Signed-off-by: Dhruva Gole <d-gole@xxxxxx>
---

Previously sent here:
https://lore.kernel.org/all/20230419084817.481136-1-d-gole@xxxxxx/

Base: next-20230419

Changelog:
* Fix build errors reported by kernel test bot.

 drivers/spi/spi-cadence-quadspi.c | 13 ++-----------
 1 file changed, 2 insertions(+), 11 deletions(-)

diff --git a/drivers/spi/spi-cadence-quadspi.c b/drivers/spi/spi-cadence-quadspi.c
index 53829eb5eca0..6ddb2dfc0f00 100644
--- a/drivers/spi/spi-cadence-quadspi.c
+++ b/drivers/spi/spi-cadence-quadspi.c
@@ -1820,7 +1820,6 @@ static void cqspi_remove(struct platform_device *pdev)
 	pm_runtime_disable(&pdev->dev);
 }
 
-#ifdef CONFIG_PM_SLEEP
 static int cqspi_suspend(struct device *dev)
 {
 	struct cqspi_st *cqspi = dev_get_drvdata(dev);
@@ -1850,15 +1849,7 @@ static int cqspi_resume(struct device *dev)
 	return spi_master_resume(master);
 }
 
-static const struct dev_pm_ops cqspi__dev_pm_ops = {
-	.suspend = cqspi_suspend,
-	.resume = cqspi_resume,
-};
-
-#define CQSPI_DEV_PM_OPS	(&cqspi__dev_pm_ops)
-#else
-#define CQSPI_DEV_PM_OPS	NULL
-#endif
+static DEFINE_SIMPLE_DEV_PM_OPS(cqspi_dev_pm_ops, cqspi_suspend, cqspi_resume);
 
 static const struct cqspi_driver_platdata cdns_qspi = {
 	.quirks = CQSPI_DISABLE_DAC_MODE,
@@ -1933,7 +1924,7 @@ static struct platform_driver cqspi_platform_driver = {
 	.remove_new = cqspi_remove,
 	.driver = {
 		.name = CQSPI_NAME,
-		.pm = CQSPI_DEV_PM_OPS,
+		.pm = &cqspi_dev_pm_ops,
 		.of_match_table = cqspi_dt_ids,
 	},
 };
-- 
2.25.1