Change PINCTR_IMX_SCU to tristate, remove unnecessary #ifdef and add
module author, description and license to support building SCU pinctrl
core driver as module.

Signed-off-by: Anson Huang <anson.hu...@nxp.com>
---
Changes since V1:
        - split V1 [1/2] patch to 2 patches, this patch supports building SCU 
pinctrl core
          driver as module;
        - remove unnecessary #ifdef check and #else block.
---
 drivers/pinctrl/freescale/Kconfig       |  2 +-
 drivers/pinctrl/freescale/pinctrl-imx.h | 20 --------------------
 drivers/pinctrl/freescale/pinctrl-scu.c |  5 +++++
 3 files changed, 6 insertions(+), 21 deletions(-)

diff --git a/drivers/pinctrl/freescale/Kconfig 
b/drivers/pinctrl/freescale/Kconfig
index 08fcf5c..452c499 100644
--- a/drivers/pinctrl/freescale/Kconfig
+++ b/drivers/pinctrl/freescale/Kconfig
@@ -7,7 +7,7 @@ config PINCTRL_IMX
        select REGMAP
 
 config PINCTRL_IMX_SCU
-       bool
+       tristate "IMX SCU pinctrl core driver"
        depends on IMX_SCU
        select PINCTRL_IMX
 
diff --git a/drivers/pinctrl/freescale/pinctrl-imx.h 
b/drivers/pinctrl/freescale/pinctrl-imx.h
index 40927ca..fd8c4b6 100644
--- a/drivers/pinctrl/freescale/pinctrl-imx.h
+++ b/drivers/pinctrl/freescale/pinctrl-imx.h
@@ -144,7 +144,6 @@ struct imx_pinctrl_soc_info {
 int imx_pinctrl_probe(struct platform_device *pdev,
                        const struct imx_pinctrl_soc_info *info);
 
-#ifdef CONFIG_PINCTRL_IMX_SCU
 #define BM_PAD_CTL_GP_ENABLE           BIT(30)
 #define BM_PAD_CTL_IFMUX_ENABLE                BIT(31)
 #define BP_PAD_CTL_IFMUX               27
@@ -157,23 +156,4 @@ int imx_pinconf_set_scu(struct pinctrl_dev *pctldev, 
unsigned pin_id,
 void imx_pinctrl_parse_pin_scu(struct imx_pinctrl *ipctl,
                               unsigned int *pin_id, struct imx_pin *pin,
                               const __be32 **list_p);
-#else
-static inline int imx_pinconf_get_scu(struct pinctrl_dev *pctldev,
-                                     unsigned pin_id, unsigned long *config)
-{
-       return -EINVAL;
-}
-static inline int imx_pinconf_set_scu(struct pinctrl_dev *pctldev,
-                                     unsigned pin_id, unsigned long *configs,
-                                     unsigned num_configs)
-{
-       return -EINVAL;
-}
-static inline void imx_pinctrl_parse_pin_scu(struct imx_pinctrl *ipctl,
-                                           unsigned int *pin_id,
-                                           struct imx_pin *pin,
-                                           const __be32 **list_p)
-{
-}
-#endif
 #endif /* __DRIVERS_PINCTRL_IMX_H */
diff --git a/drivers/pinctrl/freescale/pinctrl-scu.c 
b/drivers/pinctrl/freescale/pinctrl-scu.c
index 9df45d3..59b5f8a 100644
--- a/drivers/pinctrl/freescale/pinctrl-scu.c
+++ b/drivers/pinctrl/freescale/pinctrl-scu.c
@@ -7,6 +7,7 @@
 
 #include <linux/err.h>
 #include <linux/firmware/imx/sci.h>
+#include <linux/module.h>
 #include <linux/of_address.h>
 #include <linux/pinctrl/pinctrl.h>
 #include <linux/platform_device.h>
@@ -123,3 +124,7 @@ void imx_pinctrl_parse_pin_scu(struct imx_pinctrl *ipctl,
                pin_scu->mux_mode, pin_scu->config);
 }
 EXPORT_SYMBOL_GPL(imx_pinctrl_parse_pin_scu);
+
+MODULE_AUTHOR("Dong Aisheng <aisheng.d...@nxp.com>");
+MODULE_DESCRIPTION("NXP i.MX SCU common pinctrl driver");
+MODULE_LICENSE("GPL v2");
-- 
2.7.4

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