Commit 7b9d428e authored by Rob Herring's avatar Rob Herring
Browse files

mfd: vexpress-sysreg: Support building as a module 



Enable building the vexpress-sysreg driver as a module.

As deferred probe between the vexpress components works now, we don't
need to create struct devices early with of_platform_device_create().

Cc: Liviu Dudau <liviu.dudau@arm.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: default avatarSudeep Holla <sudeep.holla@arm.com>
Acked-by: default avatarLee Jones <lee.jones@linaro.org>
Signed-off-by: default avatarRob Herring <robh@kernel.org>
parent 0ea355ef

drivers/mfd/Kconfig

+1 −1
Original line number Diff line number Diff line
@@ -2028,7 +2028,7 @@ config MCP_UCB1200_TS 
endmenu



config MFD_VEXPRESS_SYSREG

	bool "Versatile Express System Registers"

	tristate "Versatile Express System Registers"

	depends on VEXPRESS_CONFIG && GPIOLIB

	default y

	select GPIO_GENERIC_PLATFORM

drivers/mfd/vexpress-sysreg.c

+4 −11
Original line number Diff line number Diff line
@@ -8,6 +8,7 @@ 
#include <linux/err.h>

#include <linux/io.h>

#include <linux/mfd/core.h>

#include <linux/module.h>

#include <linux/of_platform.h>

#include <linux/platform_data/syscon.h>

#include <linux/platform_device.h>
@@ -151,6 +152,7 @@ static const struct of_device_id vexpress_sysreg_match[] = { 
	{ .compatible = "arm,vexpress-sysreg", },

	{},

};

MODULE_DEVICE_TABLE(of, vexpress_sysreg_match);



static struct platform_driver vexpress_sysreg_driver = {

	.driver = {
@@ -160,14 +162,5 @@ static struct platform_driver vexpress_sysreg_driver = { 
	.probe = vexpress_sysreg_probe,

};



static int __init vexpress_sysreg_init(void)

{

	struct device_node *node;



	/* Need the sysreg early, before any other device... */

	for_each_matching_node(node, vexpress_sysreg_match)

		of_platform_device_create(node, NULL, NULL);



	return platform_driver_register(&vexpress_sysreg_driver);

}

core_initcall(vexpress_sysreg_init);
 
module_platform_driver(vexpress_sysreg_driver);

MODULE_LICENSE("GPL v2");

CRA Git | Maintained and supported by SUSTech CRA and CCSE