[PATCH V2] spi: cadence-quadspi: use macro DEFINE_SIMPLE_DEV_PM_OPS

[Dhruva Gole <d-gole@ti.com>]

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

Signed-off-by: Dhruva Gole <d-gole@ti.com>
---

Address comments from previously posted patch:
https://patchwork.kernel.org/project/spi-devel-general/patch/20230417091027.966146-2-d-gole@ti.com/

 drivers/spi/spi-cadence-quadspi.c | 9 ++-------
 1 file changed, 2 insertions(+), 7 deletions(-)

diff --git a/drivers/spi/spi-cadence-quadspi.c b/drivers/spi/spi-cadence-quadspi.c
index 79ab7e309644..922026bb9380 100644
--- a/drivers/spi/spi-cadence-quadspi.c
+++ b/drivers/spi/spi-cadence-quadspi.c
@@ -1829,12 +1829,7 @@ static int cqspi_resume(struct device *dev)
 	return 0;
 }
 
-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)
+static DEFINE_SIMPLE_DEV_PM_OPS(cqspi_dev_pm_ops, cqspi_suspend, cqspi_resume);
 #else
 #define CQSPI_DEV_PM_OPS	NULL
 #endif
@@ -1912,7 +1907,7 @@ 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