Support building i.MX8MN pinctrl driver as module.

Signed-off-by: Anson Huang <redacted>
---
No change.
---
  drivers/pinctrl/freescale/Kconfig          |  2 +-
  drivers/pinctrl/freescale/pinctrl-imx8mn.c | 10 ++++------
  2 files changed, 5 insertions(+), 7 deletions(-)

diff --git a/drivers/pinctrl/freescale/Kconfig b/drivers/pinctrl/freescale/Kconfig
index 556adc3..fe3e49c 100644
--- a/drivers/pinctrl/freescale/Kconfig
+++ b/drivers/pinctrl/freescale/Kconfig

@@ -132,7 +132,7 @@ config PINCTRL_IMX8MM
  	  Say Y here to enable the imx8mm pinctrl driver
  
  config PINCTRL_IMX8MN
-	bool "IMX8MN pinctrl driver"
+	tristate "IMX8MN pinctrl driver"
  	depends on ARCH_MXC
  	select PINCTRL_IMX
  	help

diff --git a/drivers/pinctrl/freescale/pinctrl-imx8mn.c b/drivers/pinctrl/freescale/pinctrl-imx8mn.c
index 100ed8c..b6db780 100644
--- a/drivers/pinctrl/freescale/pinctrl-imx8mn.c
+++ b/drivers/pinctrl/freescale/pinctrl-imx8mn.c

@@ -5,6 +5,7 @@
  
  #include <linux/err.h>
  #include <linux/init.h>
+#include <linux/module.h>
  #include <linux/of.h>
  #include <linux/pinctrl/pinctrl.h>
  #include <linux/platform_device.h>

@@ -326,6 +327,7 @@ static const struct of_device_id imx8mn_pinctrl_of_match[] = {
  	{ .compatible = "fsl,imx8mn-iomuxc", .data = &imx8mn_pinctrl_info, },
  	{ /* sentinel */ }
  };
+MODULE_DEVICE_TABLE(of, imx8mn_pinctrl_of_match);
  
  static int imx8mn_pinctrl_probe(struct platform_device *pdev)
  {

@@ -340,9 +342,5 @@ static struct platform_driver imx8mn_pinctrl_driver = {
  	},
  	.probe = imx8mn_pinctrl_probe,
  };
-
-static int __init imx8mn_pinctrl_init(void)
-{
-	return platform_driver_register(&imx8mn_pinctrl_driver);
-}
-arch_initcall(imx8mn_pinctrl_init);
+module_platform_driver(imx8mn_pinctrl_driver);
+MODULE_LICENSE("GPL v2");