[PATCH] spi: Convert to subsys_platform_driver()

["Peng Fan (OSS)" <peng.fan@oss.nxp.com>]

From: Peng Fan <peng.fan@nxp.com>

Replace the open-coded subsys_initcall()/module_exit() platform driver
registration with subsys_platform_driver().

The pxa2xx platform driver is renamed from "driver" to
"pxa2xx_spi_driver" because subsys_platform_driver() generates
"<name>_init", which would otherwise conflict with the core
driver_init() declaration.

No functional change.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
---
 drivers/spi/spi-omap-uwire.c      | 13 +------------
 drivers/spi/spi-pxa2xx-platform.c | 15 ++-------------
 2 files changed, 3 insertions(+), 25 deletions(-)

diff --git a/drivers/spi/spi-omap-uwire.c b/drivers/spi/spi-omap-uwire.c
index 83e263eb6069..6838a0603c90 100644
--- a/drivers/spi/spi-omap-uwire.c
+++ b/drivers/spi/spi-omap-uwire.c
@@ -528,18 +528,7 @@ static struct platform_driver uwire_driver = {
 	// resume ... use ck
 };
 
-static int __init omap_uwire_init(void)
-{
-	return platform_driver_register(&uwire_driver);
-}
-
-static void __exit omap_uwire_exit(void)
-{
-	platform_driver_unregister(&uwire_driver);
-}
-
-subsys_initcall(omap_uwire_init);
-module_exit(omap_uwire_exit);
+subsys_platform_driver(uwire_driver);
 
 MODULE_DESCRIPTION("MicroWire interface driver for OMAP");
 MODULE_LICENSE("GPL");
diff --git a/drivers/spi/spi-pxa2xx-platform.c b/drivers/spi/spi-pxa2xx-platform.c
index 849a14cd0343..eee70e1f8690 100644
--- a/drivers/spi/spi-pxa2xx-platform.c
+++ b/drivers/spi/spi-pxa2xx-platform.c
@@ -198,7 +198,7 @@ static const struct of_device_id pxa2xx_spi_of_match[] = {
 };
 MODULE_DEVICE_TABLE(of, pxa2xx_spi_of_match);
 
-static struct platform_driver driver = {
+static struct platform_driver pxa2xx_spi_driver = {
 	.driver = {
 		.name	= "pxa2xx-spi",
 		.pm	= pm_ptr(&pxa2xx_spi_pm_ops),
@@ -208,18 +208,7 @@ static struct platform_driver driver = {
 	.probe = pxa2xx_spi_platform_probe,
 	.remove = pxa2xx_spi_platform_remove,
 };
-
-static int __init pxa2xx_spi_init(void)
-{
-	return platform_driver_register(&driver);
-}
-subsys_initcall(pxa2xx_spi_init);
-
-static void __exit pxa2xx_spi_exit(void)
-{
-	platform_driver_unregister(&driver);
-}
-module_exit(pxa2xx_spi_exit);
+subsys_platform_driver(pxa2xx_spi_driver);
 
 MODULE_AUTHOR("Stephen Street");
 MODULE_DESCRIPTION("PXA2xx SSP SPI Controller platform driver");
-- 
2.51.0