kernel-ark/drivers/cpuidle/cpuidle-clps711x.c
Paul Gortmaker 94e8057b84 drivers/cpuidle: make cpuidle-clps711x.c explicitly non-modular
The Kconfig currently controlling compilation of this code is:

drivers/cpuidle/Kconfig.arm:config ARM_CLPS711X_CPUIDLE
drivers/cpuidle/Kconfig.arm:    bool "CPU Idle Driver for CLPS711X processors"

...meaning that it currently is not being built as a module by anyone.

Lets remove the modular code that is essentially orphaned, so that
when reading the driver there is no doubt it is builtin-only.

Since module_platform_driver() uses the same init level priority as
builtin_platform_driver() the init ordering remains unchanged with
this commit.

Also note that MODULE_DEVICE_TABLE is a no-op for non-modular code.

We also delete the MODULE_LICENSE tag etc. since all that information
is already contained at the top of the file in the comments.

Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-12-15 00:22:21 +01:00

60 lines
1.5 KiB
C

/*
* CLPS711X CPU idle driver
*
* Copyright (C) 2014 Alexander Shiyan <shc_work@mail.ru>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
#include <linux/cpuidle.h>
#include <linux/err.h>
#include <linux/io.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#define CLPS711X_CPUIDLE_NAME "clps711x-cpuidle"
static void __iomem *clps711x_halt;
static int clps711x_cpuidle_halt(struct cpuidle_device *dev,
struct cpuidle_driver *drv, int index)
{
writel(0xaa, clps711x_halt);
return index;
}
static struct cpuidle_driver clps711x_idle_driver = {
.name = CLPS711X_CPUIDLE_NAME,
.owner = THIS_MODULE,
.states[0] = {
.name = "HALT",
.desc = "CLPS711X HALT",
.enter = clps711x_cpuidle_halt,
.exit_latency = 1,
},
.state_count = 1,
};
static int __init clps711x_cpuidle_probe(struct platform_device *pdev)
{
struct resource *res;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
clps711x_halt = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(clps711x_halt))
return PTR_ERR(clps711x_halt);
return cpuidle_register(&clps711x_idle_driver, NULL);
}
static struct platform_driver clps711x_cpuidle_driver = {
.driver = {
.name = CLPS711X_CPUIDLE_NAME,
},
};
builtin_platform_driver_probe(clps711x_cpuidle_driver, clps711x_cpuidle_probe);