LCD Driver-JZ2440-EEWORLD

Collect

lcd_regs->lcdcon5 |= (1<<3); /* Enable LCD itself*/

*gpbdat |= 1; /* Output high level, enable backlight*/

/* 4. Registration */

register_framebuffer(s3c_lcd);

return 0;

}

static void lcd_exit(void)

{

unregister_framebuffer(s3c_lcd);

lcd_regs->lcdcon1 &= ~(1<<0); /* Turn off the LCD itself*/

*gpbdat &= ~1; /* Turn off backlight*/

dma_free_writecombine(NULL, s3c_lcd->fix.smem_len, s3c_lcd->screen_base, s3c_lcd->fix.smem_start);

iounmap(lcd_regs);

iounmap(gpbcon);

iounmap(gpccon);

iounmap(gpdcon);

iounmap(gpgcon);

framebuffer_release(s3c_lcd);

}

module_init(lcd_init);

module_exit(lcd_exit);

MODULE_LICENSE("GPL");

Makefile

KERN_DIR = /work/system/linux-2.6.22.6

all:

make -C $(KERN_DIR) M=`pwd` modules

clean:

make -C $(KERN_DIR) M=`pwd` modules clean

rm -rf modules.order

obj-m += lcd.o

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Reference address：LCD Driver-JZ2440

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