diff options
Diffstat (limited to 'drivers/video/clps711xfb.c')
| -rw-r--r-- | drivers/video/clps711xfb.c | 156 |
1 files changed, 19 insertions, 137 deletions
diff --git a/drivers/video/clps711xfb.c b/drivers/video/clps711xfb.c index f994c8b8f10..63ecdf8f7ba 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 @@ -162,44 +158,12 @@ clps7111fb_set_par(struct fb_info *info) 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); - - /* Power off the LCD DC-DC converter. */ - clps_writeb(clps_readb(PDDR) & ~EDB_PD1_LCD_DC_DC_EN, PDDR); - - /* Delay for a little while (half a second). */ - udelay(100); - - /* Power off the LCD panel. */ - clps_writeb(clps_readb(PDDR) & ~EDB_PD2_LCDEN, PDDR); - - /* Power off the LCD controller. */ - clps_writel(clps_readl(SYSCON1) & ~SYSCON1_LCDEN, - SYSCON1); - } - } else { - if (machine_is_edb7211()) { - /* Power up the LCD controller. */ - clps_writel(clps_readl(SYSCON1) | SYSCON1_LCDEN, - SYSCON1); - - /* Power up the LCD panel. */ - clps_writeb(clps_readb(PDDR) | EDB_PD2_LCDEN, PDDR); - - /* Delay for a little while. */ - udelay(100); + /* Enable/Disable LCD controller. */ + if (blank) + clps_writel(clps_readl(SYSCON1) & ~SYSCON1_LCDEN, SYSCON1); + else + clps_writel(clps_readl(SYSCON1) | SYSCON1_LCDEN, SYSCON1); - /* Power up the LCD DC-DC converter. */ - clps_writeb(clps_readb(PDDR) | EDB_PD1_LCD_DC_DC_EN, - PDDR); - - /* Turn on the LCD backlight. */ - clps_writeb(clps_readb(PDDR) | EDB_PD3_LCDBL, PDDR); - } - } return 0; } @@ -214,63 +178,7 @@ static struct fb_ops clps7111fb_ops = { .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 __init clps711x_guess_lcd_params(struct fb_info *info) +static void __devinit clps711x_guess_lcd_params(struct fb_info *info) { unsigned int lcdcon, syscon, size; unsigned long phys_base = PAGE_OFFSET; @@ -358,7 +266,7 @@ static void __init clps711x_guess_lcd_params(struct fb_info *info) info->fix.type = FB_TYPE_PACKED_PIXELS; } -int __init clps711xfb_init(void) +static int __devinit clps711x_fb_probe(struct platform_device *pdev) { int err = -ENOMEM; @@ -378,55 +286,29 @@ int __init clps711xfb_init(void) 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_LCDEN = PLD_LCDEN_EN; - PLD_PWR |= (PLD_S4_ON|PLD_S3_ON|PLD_S2_ON|PLD_S1_ON); - } - - if (machine_is_edb7211()) { - /* Power up the LCD panel. */ - clps_writeb(clps_readb(PDDR) | EDB_PD2_LCDEN, PDDR); - - /* Delay for a little while. */ - udelay(100); - - /* Power up the LCD DC-DC converter. */ - clps_writeb(clps_readb(PDDR) | EDB_PD1_LCD_DC_DC_EN, PDDR); - - /* Turn on the LCD backlight. */ - clps_writeb(clps_readb(PDDR) | EDB_PD3_LCDBL, PDDR); - } - err = register_framebuffer(cfb); out: return err; } -static void __exit clps711xfb_exit(void) +static int __devexit clps711x_fb_remove(struct platform_device *pdev) { unregister_framebuffer(cfb); kfree(cfb); - /* - * Power down the LCD - */ - if (machine_is_p720t()) { - PLD_LCDEN = 0; - PLD_PWR &= ~(PLD_S4_ON|PLD_S3_ON|PLD_S2_ON|PLD_S1_ON); - } + return 0; } -module_init(clps711xfb_init); -module_exit(clps711xfb_exit); +static struct platform_driver clps711x_fb_driver = { + .driver = { + .name = "video-clps711x", + .owner = THIS_MODULE, + }, + .probe = clps711x_fb_probe, + .remove = __devexit_p(clps711x_fb_remove), +}; +module_platform_driver(clps711x_fb_driver); MODULE_AUTHOR("Russell King <rmk@arm.linux.org.uk>"); -MODULE_DESCRIPTION("CLPS711x framebuffer driver"); +MODULE_DESCRIPTION("CLPS711X framebuffer driver"); MODULE_LICENSE("GPL"); |