openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

clps711xfb: convert to proc_fops 

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Alexey Dobriyan 2009-12-15 16:46:37 -08:00 committed by Linus Torvalds
parent 8130b3b9e6
commit fa1f136e07
1 changed files with 21 additions and 29 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

50
drivers/video/clps711xfb.c
View File

@ -19,8 +19,10 @@
*
* Framebuffer driver for the CLPS7111 and EP7212 processors.
*/
#include <linux/mm.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/seq_file.h>
#include <linux/slab.h>
#include <linux/fb.h>
#include <linux/init.h>
@ -38,14 +40,6 @@ struct fb_info *cfb;
#define CMAP_MAX_SIZE 16
/* The /proc entry for the backlight. */
static struct proc_dir_entry *clps7111fb_backlight_proc_entry = NULL;
static int clps7111fb_proc_backlight_read(char *page, char **start, off_t off,
int count, int *eof, void *data);
static int clps7111fb_proc_backlight_write(struct file *file,
const char *buffer, unsigned long count, void *data);
/*
* LCD AC Prescale. This comes from the LCD panel manufacturers specifications.
* This determines how many clocks + 1 of CL1 before the M signal toggles.
@ -221,26 +215,23 @@ static struct fb_ops clps7111fb_ops = {
.fb_imageblit = cfb_imageblit,
};
static int
clps7111fb_proc_backlight_read(char *page, char **start, off_t off,
int count, int *eof, void *data)
static int backlight_proc_show(struct seq_file *m, void *v)
{
/* We need at least two characters, one for the digit, and one for
* the terminating NULL. */
if (count < 2)
return -EINVAL;
if (machine_is_edb7211()) {
return sprintf(page, "%d\n",
seq_printf(m, "%d\n",
(clps_readb(PDDR) & EDB_PD3_LCDBL) ? 1 : 0);
}
return 0;
}
static int
clps7111fb_proc_backlight_write(struct file *file, const char *buffer,
unsigned long count, void *data)
static int backlight_proc_open(struct inode *inode, struct file *file)
{
return single_open(file, backlight_proc_show, NULL);
}
static ssize_t backlight_proc_write(struct file *file, const char *buffer,
size_t count, loff_t *pos)
{
unsigned char char_value;
int value;
@ -271,6 +262,15 @@ clps7111fb_proc_backlight_write(struct file *file, const char *buffer,
return count;
}
static const struct file_operations backlight_proc_fops = {
.owner = THIS_MODULE,
.open = backlight_proc_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
.write = backlight_proc_write,
};
static void __init clps711x_guess_lcd_params(struct fb_info *info)
{
unsigned int lcdcon, syscon, size;
@ -379,19 +379,11 @@ int __init clps711xfb_init(void)
fb_alloc_cmap(&cfb->cmap, CMAP_MAX_SIZE, 0);
/* Register the /proc entries. */
clps7111fb_backlight_proc_entry = create_proc_entry("backlight", 0444,
NULL);
if (clps7111fb_backlight_proc_entry == NULL) {
if (!proc_create("backlight", 0444, NULL, &backlight_proc_fops)) {
printk("Couldn't create the /proc entry for the backlight.\n");
return -EINVAL;
}
clps7111fb_backlight_proc_entry->read_proc =
&clps7111fb_proc_backlight_read;
clps7111fb_backlight_proc_entry->write_proc =
&clps7111fb_proc_backlight_write;
/*
* Power up the LCD
*/