[PATCH 1/2] gpio: mb86s7x: share with other SoCs as module

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In order to reuse this driver for the Socionext Synquacer SC2A11 SoC,
which inherited this IP from Fujitsu, remove the ARCH_MB86S7X Kconfig
dependency, and revert the changes that prevent it from being built as
a module.

This reverts commits d65aa4b67b4f47f303bdeaef1e4d42ef18e6b293 and
d5610e514e92144d19bd5e39e5cf3804bbf85f3e.

Cc: Geliang Tang <geliangtang@xxxxxxxxx>
Cc: Linus Walleij <linus.walleij@xxxxxxxxxx>
Cc: Paul Gortmaker <paul.gortmaker@xxxxxxxxxxxxx>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@xxxxxxxxxx>
---
 drivers/gpio/Kconfig        |  3 +--
 drivers/gpio/gpio-mb86s7x.c | 12 +++++++++++-
 2 files changed, 12 insertions(+), 3 deletions(-)

diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index 3f80f167ed56..bf40a948e4cc 100644
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -286,8 +286,7 @@ config GPIO_LYNXPOINT
 	  Requires ACPI device enumeration code to set up a platform device.
 
 config GPIO_MB86S7X
-	bool "GPIO support for Fujitsu MB86S7x Platforms"
-	depends on ARCH_MB86S7X || COMPILE_TEST
+	tristate "GPIO support for Fujitsu MB86S7x Platforms"
 	help
 	  Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs.
 
diff --git a/drivers/gpio/gpio-mb86s7x.c b/drivers/gpio/gpio-mb86s7x.c
index 94d772677ed6..6e1598471733 100644
--- a/drivers/gpio/gpio-mb86s7x.c
+++ b/drivers/gpio/gpio-mb86s7x.c
@@ -17,6 +17,7 @@
 #include <linux/io.h>
 #include <linux/init.h>
 #include <linux/clk.h>
+#include <linux/module.h>
 #include <linux/err.h>
 #include <linux/errno.h>
 #include <linux/ioport.h>
@@ -209,6 +210,7 @@ static const struct of_device_id mb86s70_gpio_dt_ids[] = {
 	{ .compatible = "fujitsu,mb86s70-gpio" },
 	{ /* sentinel */ }
 };
+MODULE_DEVICE_TABLE(of, mb86s70_gpio_dt_ids);
 
 static struct platform_driver mb86s70_gpio_driver = {
 	.driver = {
@@ -219,4 +221,12 @@ static struct platform_driver mb86s70_gpio_driver = {
 	.remove = mb86s70_gpio_remove,
 };
 
-builtin_platform_driver(mb86s70_gpio_driver);
+static int __init mb86s70_gpio_init(void)
+{
+	return platform_driver_register(&mb86s70_gpio_driver);
+}
+module_init(mb86s70_gpio_init);
+
+MODULE_DESCRIPTION("MB86S7x GPIO Driver");
+MODULE_ALIAS("platform:mb86s70-gpio");
+MODULE_LICENSE("GPL");
-- 
2.11.0

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