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authorAnson Huang <Anson.Huang@nxp.com>2020-09-17 13:33:46 +0800
committerLinus Walleij <linus.walleij@linaro.org>2020-09-29 15:04:31 +0200
commit12d16b397ce0a999d13762c4c0cae2fb82eb60ee (patch)
treed30122a0929cba980d3cd338f2de1c74d70e0b4f /drivers/gpio
parent513034d8b089b9a49dab57845aee70e830fe7334 (diff)
gpio: mxc: Support module build
Change config to tristate, add module device table, module author, description and license to support module build for i.MX GPIO driver. As this is a SoC GPIO module, it provides common functions for most of the peripheral devices, such as GPIO pins control, secondary interrupt controller for GPIO pins IRQ etc., without GPIO driver, most of the peripheral devices will NOT work properly, so GPIO module is similar with clock, pinctrl driver that should be loaded ONCE and never unloaded. Since MXC GPIO driver needs to have init function to register syscore ops once, here still use subsys_initcall(), NOT module_platform_driver(). Signed-off-by: Anson Huang <Anson.Huang@nxp.com> Link: https://lore.kernel.org/r/1600320829-1453-1-git-send-email-Anson.Huang@nxp.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/gpio')
-rw-r--r--drivers/gpio/Kconfig2
-rw-r--r--drivers/gpio/gpio-mxc.c6
2 files changed, 7 insertions, 1 deletions
diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index 5cfdaf3b004d..c7292a50aec4 100644
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -397,7 +397,7 @@ config GPIO_MVEBU
select REGMAP_MMIO
config GPIO_MXC
- def_bool y
+ tristate "i.MX GPIO support"
depends on ARCH_MXC || COMPILE_TEST
select GPIO_GENERIC
select GENERIC_IRQ_CHIP
diff --git a/drivers/gpio/gpio-mxc.c b/drivers/gpio/gpio-mxc.c
index 64278a4756f0..643f4c557ac2 100644
--- a/drivers/gpio/gpio-mxc.c
+++ b/drivers/gpio/gpio-mxc.c
@@ -15,6 +15,7 @@
#include <linux/irq.h>
#include <linux/irqdomain.h>
#include <linux/irqchip/chained_irq.h>
+#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <linux/syscore_ops.h>
@@ -158,6 +159,7 @@ static const struct of_device_id mxc_gpio_dt_ids[] = {
{ .compatible = "fsl,imx7d-gpio", .data = &mxc_gpio_devtype[IMX35_GPIO], },
{ /* sentinel */ }
};
+MODULE_DEVICE_TABLE(of, mxc_gpio_dt_ids);
/*
* MX2 has one interrupt *for all* gpio ports. The list is used
@@ -604,3 +606,7 @@ static int __init gpio_mxc_init(void)
return platform_driver_register(&mxc_gpio_driver);
}
subsys_initcall(gpio_mxc_init);
+
+MODULE_AUTHOR("Shawn Guo <shawn.guo@linaro.org>");
+MODULE_DESCRIPTION("i.MX GPIO Driver");
+MODULE_LICENSE("GPL");