tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
backlight: simplify corgi_bl locking
Now update_status has locking, we can remove the mutex from corgi_bl.
Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
+5
-8
+5
-8
drivers/video/backlight/corgi_bl.c
+5
-8
drivers/video/backlight/corgi_bl.c
···
22
22
#include <asm/hardware/sharpsl_pm.h>
23
23
24
24
static int corgibl_intensity;
25
-
static DEFINE_MUTEX(bl_mutex);
26
25
static struct backlight_properties corgibl_data;
27
26
static struct backlight_device *corgi_backlight_device;
28
27
static struct corgibl_machinfo *bl_machinfo;
···
44
45
if (corgibl_flags & CORGIBL_BATTLOW)
45
46
intensity &= bl_machinfo->limit_mask;
46
47
47
-
mutex_lock(&bl_mutex);
48
48
bl_machinfo->set_bl_intensity(intensity);
49
-
mutex_unlock(&bl_mutex);
50
49
51
50
corgibl_intensity = intensity;
52
51
···
63
66
struct backlight_device *bd = platform_get_drvdata(pdev);
64
67
65
68
corgibl_flags |= CORGIBL_SUSPENDED;
66
-
corgibl_send_intensity(bd);
69
+
backlight_update_status(bd);
67
70
return 0;
68
71
}
69
72
···
72
75
struct backlight_device *bd = platform_get_drvdata(pdev);
73
76
74
77
corgibl_flags &= ~CORGIBL_SUSPENDED;
75
-
corgibl_send_intensity(bd);
78
+
backlight_update_status(bd);
76
79
return 0;
77
80
}
78
81
#else
···
95
98
corgibl_flags |= CORGIBL_BATTLOW;
96
99
else
97
100
corgibl_flags &= ~CORGIBL_BATTLOW;
98
-
corgibl_send_intensity(corgi_backlight_device);
101
+
backlight_update_status(corgi_backlight_device);
99
102
}
100
103
EXPORT_SYMBOL(corgibl_limit_intensity);
101
104
···
123
126
corgi_backlight_device->props.max_brightness = machinfo->max_intensity;
124
127
corgi_backlight_device->props.power = FB_BLANK_UNBLANK;
125
128
corgi_backlight_device->props.brightness = machinfo->default_intensity;
126
-
corgibl_send_intensity(corgi_backlight_device);
129
+
backlight_update_status(corgi_backlight_device);
127
130
128
131
printk("Corgi Backlight Driver Initialized.\n");
129
132
return 0;
···
135
138
136
139
corgibl_data.power = 0;
137
140
corgibl_data.brightness = 0;
138
-
corgibl_send_intensity(bd);
141
+
backlight_update_status(bd);
139
142
140
143
backlight_device_unregister(bd);
141
144