linux/arch/arm/mach-footbridge/ebsa285.c
Linus Torvalds bf4afc53b7 Convert 'alloc_obj' family to use the new default GFP_KERNEL argument
This was done entirely with mindless brute force, using

    git grep -l '\<k[vmz]*alloc_objs*(.*, GFP_KERNEL)' |
        xargs sed -i 's/\(alloc_objs*(.*\), GFP_KERNEL)/\1)/'

to convert the new alloc_obj() users that had a simple GFP_KERNEL
argument to just drop that argument.

Note that due to the extreme simplicity of the scripting, any slightly
more complex cases spread over multiple lines would not be triggered:
they definitely exist, but this covers the vast bulk of the cases, and
the resulting diff is also then easier to check automatically.

For the same reason the 'flex' versions will be done as a separate
conversion.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2026-02-21 17:09:51 -08:00

124 lines
2.6 KiB
C

// SPDX-License-Identifier: GPL-2.0
/*
* linux/arch/arm/mach-footbridge/ebsa285.c
*
* EBSA285 machine fixup
*/
#include <linux/init.h>
#include <linux/io.h>
#include <linux/spinlock.h>
#include <linux/slab.h>
#include <linux/leds.h>
#include <asm/hardware/dec21285.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include "common.h"
/* LEDs */
#if defined(CONFIG_NEW_LEDS) && defined(CONFIG_LEDS_CLASS)
#define XBUS_AMBER_L BIT(0)
#define XBUS_GREEN_L BIT(1)
#define XBUS_RED_L BIT(2)
#define XBUS_TOGGLE BIT(7)
struct ebsa285_led {
struct led_classdev cdev;
u8 mask;
};
/*
* The triggers lines up below will only be used if the
* LED triggers are compiled in.
*/
static const struct {
const char *name;
const char *trigger;
} ebsa285_leds[] = {
{ "ebsa285:amber", "cpu0", },
{ "ebsa285:green", "heartbeat", },
{ "ebsa285:red",},
};
static unsigned char hw_led_state;
static void __iomem *xbus;
static void ebsa285_led_set(struct led_classdev *cdev,
enum led_brightness b)
{
struct ebsa285_led *led = container_of(cdev,
struct ebsa285_led, cdev);
if (b == LED_OFF)
hw_led_state |= led->mask;
else
hw_led_state &= ~led->mask;
writeb(hw_led_state, xbus);
}
static enum led_brightness ebsa285_led_get(struct led_classdev *cdev)
{
struct ebsa285_led *led = container_of(cdev,
struct ebsa285_led, cdev);
return hw_led_state & led->mask ? LED_OFF : LED_FULL;
}
static int __init ebsa285_leds_init(void)
{
int i;
if (!machine_is_ebsa285())
return -ENODEV;
xbus = ioremap(XBUS_CS2, SZ_4K);
if (!xbus)
return -ENOMEM;
/* 3 LEDS all off */
hw_led_state = XBUS_AMBER_L | XBUS_GREEN_L | XBUS_RED_L;
writeb(hw_led_state, xbus);
for (i = 0; i < ARRAY_SIZE(ebsa285_leds); i++) {
struct ebsa285_led *led;
led = kzalloc_obj(*led);
if (!led)
break;
led->cdev.name = ebsa285_leds[i].name;
led->cdev.brightness_set = ebsa285_led_set;
led->cdev.brightness_get = ebsa285_led_get;
led->cdev.default_trigger = ebsa285_leds[i].trigger;
led->mask = BIT(i);
if (led_classdev_register(NULL, &led->cdev) < 0) {
kfree(led);
break;
}
}
return 0;
}
/*
* Since we may have triggers on any subsystem, defer registration
* until after subsystem_init.
*/
fs_initcall(ebsa285_leds_init);
#endif
MACHINE_START(EBSA285, "EBSA285")
/* Maintainer: Russell King */
.atag_offset = 0x100,
.video_start = 0x000a0000,
.video_end = 0x000bffff,
.map_io = footbridge_map_io,
.init_early = footbridge_sched_clock,
.init_irq = footbridge_init_irq,
.init_time = footbridge_timer_init,
.restart = footbridge_restart,
MACHINE_END