[PATCH 1/3] gpio: brcmstb: have driver register during subsys_initcall()

[Florian Fainelli <f.fainelli@xxxxxxxxx>]

From: Jim Quinlan <jim2101024@xxxxxxxxx>

Because regulators are started with subsys_initcall(), and gpio references may
be contained in the regulators, it makes sense to start the brcmstb-gpio's with
a subsys_initcall(). The order within the drivers/Makefile ensures that the
gpio initialization happens prior to the regulator's initialization.

We need to unroll module_platform_driver() now to allow this and have custom
exit and init module functions to control the initialization level.

Signed-off-by: Jim Quinlan <jim2101024@xxxxxxxxx>
Signed-off-by: Florian Fainelli <f.fainelli@xxxxxxxxx>
---
 drivers/gpio/gpio-brcmstb.c | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/drivers/gpio/gpio-brcmstb.c b/drivers/gpio/gpio-brcmstb.c
index dc3f0395693b..3618b9fd0cba 100644
--- a/drivers/gpio/gpio-brcmstb.c
+++ b/drivers/gpio/gpio-brcmstb.c
@@ -535,7 +535,18 @@ static struct platform_driver brcmstb_gpio_driver = {
 	.probe = brcmstb_gpio_probe,
 	.remove = brcmstb_gpio_remove,
 };
-module_platform_driver(brcmstb_gpio_driver);
+
+static int __init brcmstb_gpio_init(void)
+{
+	return platform_driver_register(&brcmstb_gpio_driver);
+}
+subsys_initcall(brcmstb_gpio_init);
+
+static void __exit brcmstb_gpio_exit(void)
+{
+	platform_driver_unregister(&brcmstb_gpio_driver);
+}
+module_exit(brcmstb_gpio_exit);
 
 MODULE_AUTHOR("Gregory Fong");
 MODULE_DESCRIPTION("Driver for Broadcom BRCMSTB SoC UPG GPIO");
-- 
2.1.0

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