[RFC PATCH] pinctrl: pinctrl-single.c: init pinctrl single at arch_initcall time

From: He YunLei
Date: Mon Sep 29 2014 - 06:31:45 EST

On our arm platform, some modules (e.g. I2C bus driver) will use the pinctrl-single driver to configure the SoC pin, but pinctrl-single driver uses module_init time, that makes some modules initialize ahead the pinctrl-single and fail to register.

This patch promotes the initialization priority of pinctrl-single from module_init time to arch_initcall time.

Signed-off-by: Yunlei He <heyunlei@xxxxxxxxxx>
Signed-off-by: Xinwei Kong <kong.kongxinwei@xxxxxxxxxxxxx>
drivers/pinctrl/pinctrl-single.c | 13 ++++++++++++-
1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/drivers/pinctrl/pinctrl-single.c b/drivers/pinctrl/pinctrl-single.c
index 95dd9cf..4b9e5b9 100644
--- a/drivers/pinctrl/pinctrl-single.c
+++ b/drivers/pinctrl/pinctrl-single.c
@@ -2012,7 +2012,18 @@ static struct platform_driver pcs_driver = {

+static int __init pinctrl_single_init(void)
+ return platform_driver_register(&pcs_driver);
+static void __exit pinctrl_single_exit(void)
+ platform_driver_unregister(&pcs_driver);

MODULE_AUTHOR("Tony Lindgren <tony@xxxxxxxxxxx>");
MODULE_DESCRIPTION("One-register-per-pin type device tree based pinctrl driver");

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/