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Subject[PATCH V2 1/9] pinctrl: imx: Support building SCU pinctrl driver as module
Date
Export necessary functions and use "IS_ENABLED" instead of "ifdef"
to support SCU pinctrl driver user and itself to be built as module.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
---
Changes since V1:
- Separate i.MX and i.MX SCU pinctrl driver to 2 patches;
- Support building i.MX SCU pinctrl driver itself as module.
---
drivers/pinctrl/freescale/Kconfig | 2 +-
drivers/pinctrl/freescale/pinctrl-imx.h | 2 +-
drivers/pinctrl/freescale/pinctrl-scu.c | 6 ++++++
3 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/drivers/pinctrl/freescale/Kconfig b/drivers/pinctrl/freescale/Kconfig
index 4ca44dd..a3a30f1d 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 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 333d32b..4e93f12 100644
--- a/drivers/pinctrl/freescale/pinctrl-imx.h
+++ b/drivers/pinctrl/freescale/pinctrl-imx.h
@@ -137,7 +137,7 @@ struct imx_pinctrl {
int imx_pinctrl_probe(struct platform_device *pdev,
const struct imx_pinctrl_soc_info *info);

-#ifdef CONFIG_PINCTRL_IMX_SCU
+#if IS_ENABLED(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
diff --git a/drivers/pinctrl/freescale/pinctrl-scu.c b/drivers/pinctrl/freescale/pinctrl-scu.c
index 23cf04b..35efd5c 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>
@@ -41,6 +42,7 @@ int imx_pinctrl_sc_ipc_init(struct platform_device *pdev)
{
return imx_scu_get_handle(&pinctrl_ipc_handle);
}
+EXPORT_SYMBOL_GPL(imx_pinctrl_sc_ipc_init);

int imx_pinconf_get_scu(struct pinctrl_dev *pctldev, unsigned pin_id,
unsigned long *config)
@@ -66,6 +68,7 @@ int imx_pinconf_get_scu(struct pinctrl_dev *pctldev, unsigned pin_id,

return 0;
}
+EXPORT_SYMBOL_GPL(imx_pinconf_get_scu);

int imx_pinconf_set_scu(struct pinctrl_dev *pctldev, unsigned pin_id,
unsigned long *configs, unsigned num_configs)
@@ -101,6 +104,7 @@ int imx_pinconf_set_scu(struct pinctrl_dev *pctldev, unsigned pin_id,

return ret;
}
+EXPORT_SYMBOL_GPL(imx_pinconf_set_scu);

void imx_pinctrl_parse_pin_scu(struct imx_pinctrl *ipctl,
unsigned int *pin_id, struct imx_pin *pin,
@@ -119,3 +123,5 @@ void imx_pinctrl_parse_pin_scu(struct imx_pinctrl *ipctl,
dev_dbg(ipctl->dev, "%s: 0x%x 0x%08lx", info->pins[pin->pin].name,
pin_scu->mux_mode, pin_scu->config);
}
+EXPORT_SYMBOL_GPL(imx_pinctrl_parse_pin_scu);
+MODULE_LICENSE("GPL v2");
--
2.7.4
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