linux-kernel - [PATCH V3 2/9] pinctrl: imx: Support building i.MX pinctrl driver as module

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Message-Id: <1591712485-20609-3-git-send-email-Anson.Huang@nxp.com>
Date:   Tue,  9 Jun 2020 22:21:18 +0800
From:   Anson Huang <Anson.Huang@....com>
To:     aisheng.dong@....com, festevam@...il.com, shawnguo@...nel.org,
        stefan@...er.ch, kernel@...gutronix.de, linus.walleij@...aro.org,
        s.hauer@...gutronix.de, linux-gpio@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Cc:     Linux-imx@....com
Subject: [PATCH V3 2/9] pinctrl: imx: Support building i.MX pinctrl driver as module

Export necessary functions to support building i.MX common pinctrl
driver and its user to be built as module.

Signed-off-by: Anson Huang <Anson.Huang@....com>
---
Changes since V2:
	- add "depends on OF" to fix build error when using x86 randconfig.
---
 drivers/pinctrl/freescale/Kconfig       | 3 ++-
 drivers/pinctrl/freescale/pinctrl-imx.c | 4 ++++
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/pinctrl/freescale/Kconfig b/drivers/pinctrl/freescale/Kconfig
index f6c00d5..3383fc2 100644
--- a/drivers/pinctrl/freescale/Kconfig
+++ b/drivers/pinctrl/freescale/Kconfig
@@ -1,6 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0-only
 config PINCTRL_IMX
-	bool
+	tristate "IMX pinctrl driver"
+	depends on OF
 	select GENERIC_PINCTRL_GROUPS
 	select GENERIC_PINMUX_FUNCTIONS
 	select GENERIC_PINCONF
diff --git a/drivers/pinctrl/freescale/pinctrl-imx.c b/drivers/pinctrl/freescale/pinctrl-imx.c
index cb7e0f0..116d808 100644
--- a/drivers/pinctrl/freescale/pinctrl-imx.c
+++ b/drivers/pinctrl/freescale/pinctrl-imx.c
@@ -11,6 +11,7 @@
 #include <linux/init.h>
 #include <linux/io.h>
 #include <linux/mfd/syscon.h>
+#include <linux/module.h>
 #include <linux/of.h>
 #include <linux/of_device.h>
 #include <linux/of_address.h>
@@ -878,6 +879,7 @@ int imx_pinctrl_probe(struct platform_device *pdev,
 
 	return pinctrl_enable(ipctl->pctl);
 }
+EXPORT_SYMBOL_GPL(imx_pinctrl_probe);
 
 static int __maybe_unused imx_pinctrl_suspend(struct device *dev)
 {
@@ -897,3 +899,5 @@ const struct dev_pm_ops imx_pinctrl_pm_ops = {
 	SET_LATE_SYSTEM_SLEEP_PM_OPS(imx_pinctrl_suspend,
 					imx_pinctrl_resume)
 };
+EXPORT_SYMBOL_GPL(imx_pinctrl_pm_ops);
+MODULE_LICENSE("GPL v2");
-- 
2.7.4