ARM: clps711x: Moving backlight controls of framebuffer driver to the board
This patch moves the backlight controls for clps711x-framebuffer driver
to the board code. To control we use "generic-bl" driver.
Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
[olof: fixed space/tab whitespace in drivers/video/clps711xfb.c]
Signed-off-by: Olof Johansson <olof@lixom.net>
diff --git a/drivers/video/clps711xfb.c b/drivers/video/clps711xfb.c
index 1902551..63ecdf8 100644
--- a/drivers/video/clps711xfb.c
+++ b/drivers/video/clps711xfb.c
@@ -22,19 +22,15 @@
#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>
-#include <linux/proc_fs.h>
#include <linux/delay.h>
#include <mach/hardware.h>
#include <asm/mach-types.h>
#include <linux/uaccess.h>
-#include <mach/syspld.h>
-
struct fb_info *cfb;
#define CMAP_MAX_SIZE 16
@@ -162,25 +158,12 @@
static int clps7111fb_blank(int blank, struct fb_info *info)
{
- if (blank) {
- if (machine_is_edb7211()) {
- /* Turn off the LCD backlight. */
- clps_writeb(clps_readb(PDDR) & ~EDB_PD3_LCDBL, PDDR);
+ /* Enable/Disable LCD controller. */
+ if (blank)
+ clps_writel(clps_readl(SYSCON1) & ~SYSCON1_LCDEN, SYSCON1);
+ else
+ clps_writel(clps_readl(SYSCON1) | SYSCON1_LCDEN, SYSCON1);
- /* Disable LCD controller. */
- clps_writel(clps_readl(SYSCON1) & ~SYSCON1_LCDEN,
- SYSCON1);
- }
- } else {
- if (machine_is_edb7211()) {
- /* Enable LCD controller. */
- clps_writel(clps_readl(SYSCON1) | SYSCON1_LCDEN,
- SYSCON1);
-
- /* Turn on the LCD backlight. */
- clps_writeb(clps_readb(PDDR) | EDB_PD3_LCDBL, PDDR);
- }
- }
return 0;
}
@@ -195,62 +178,6 @@
.fb_imageblit = cfb_imageblit,
};
-static int backlight_proc_show(struct seq_file *m, void *v)
-{
- if (machine_is_edb7211()) {
- seq_printf(m, "%d\n",
- (clps_readb(PDDR) & EDB_PD3_LCDBL) ? 1 : 0);
- }
-
- return 0;
-}
-
-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;
-
- if (count < 1) {
- return -EINVAL;
- }
-
- if (copy_from_user(&char_value, buffer, 1))
- return -EFAULT;
-
- value = char_value - '0';
-
- if (machine_is_edb7211()) {
- unsigned char port_d;
-
- port_d = clps_readb(PDDR);
-
- if (value) {
- port_d |= EDB_PD3_LCDBL;
- } else {
- port_d &= ~EDB_PD3_LCDBL;
- }
-
- clps_writeb(port_d, PDDR);
- }
-
- 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 __devinit clps711x_guess_lcd_params(struct fb_info *info)
{
unsigned int lcdcon, syscon, size;
@@ -359,22 +286,6 @@
fb_alloc_cmap(&cfb->cmap, CMAP_MAX_SIZE, 0);
- if (!proc_create("backlight", 0444, NULL, &backlight_proc_fops)) {
- printk("Couldn't create the /proc entry for the backlight.\n");
- return -EINVAL;
- }
-
- /*
- * Power up the LCD
- */
- if (machine_is_p720t())
- PLD_PWR |= PLD_S3_ON;
-
- if (machine_is_edb7211()) {
- /* Turn on the LCD backlight. */
- clps_writeb(clps_readb(PDDR) | EDB_PD3_LCDBL, PDDR);
- }
-
err = register_framebuffer(cfb);
out: return err;
@@ -385,12 +296,6 @@
unregister_framebuffer(cfb);
kfree(cfb);
- /*
- * Power down the LCD
- */
- if (machine_is_p720t())
- PLD_PWR &= ~PLD_S3_ON;
-
return 0;
}