#include <linux/fb.h>
#include <linux/init.h>
#include <linux/dma-mapping.h>
-#include <linux/string.h>
#include <linux/interrupt.h>
#include <linux/workqueue.h>
#include <linux/wait.h>
#include <linux/platform_device.h>
+#include <linux/clk.h>
#include <asm/io.h>
#include <asm/uaccess.h>
#include <asm/arch/regs-lcd.h>
#include <asm/arch/regs-gpio.h>
#include <asm/arch/fb.h>
-#include <asm/hardware/clock.h>
#ifdef CONFIG_PM
#include <linux/pm.h>
* s3c2410fb_init_registers - Initialise all LCD-related registers
*/
-int s3c2410fb_init_registers(struct s3c2410fb_info *fbi)
+static int s3c2410fb_init_registers(struct s3c2410fb_info *fbi)
{
unsigned long flags;
static char driver_name[]="s3c2410fb";
-int __init s3c2410fb_probe(struct platform_device *pdev)
+static int __init s3c2410fb_probe(struct platform_device *pdev)
{
struct s3c2410fb_info *info;
struct fb_info *fbinfo;
int ret;
int irq;
int i;
+ u32 lcdcon1;
mach_info = pdev->dev.platform_data;
if (mach_info == NULL) {
info->fb = fbinfo;
platform_set_drvdata(pdev, fbinfo);
- s3c2410fb_init_registers(info);
-
dprintk("devinit\n");
strcpy(fbinfo->fix.id, driver_name);
memcpy(&info->regs, &mach_info->regs, sizeof(info->regs));
+ /* Stop the video and unset ENVID if set */
+ info->regs.lcdcon1 &= ~S3C2410_LCDCON1_ENVID;
+ lcdcon1 = readl(S3C2410_LCDCON1);
+ writel(lcdcon1 & ~S3C2410_LCDCON1_ENVID, S3C2410_LCDCON1);
+
info->mach_info = pdev->dev.platform_data;
fbinfo->fix.type = FB_TYPE_PACKED_PIXELS;
fbinfo->var.yres_virtual = mach_info->yres.defval;
fbinfo->var.bits_per_pixel = mach_info->bpp.defval;
- fbinfo->var.upper_margin = S3C2410_LCDCON2_GET_VBPD(mregs->lcdcon2) +1;
- fbinfo->var.lower_margin = S3C2410_LCDCON2_GET_VFPD(mregs->lcdcon2) +1;
+ fbinfo->var.upper_margin = S3C2410_LCDCON2_GET_VBPD(mregs->lcdcon2) + 1;
+ fbinfo->var.lower_margin = S3C2410_LCDCON2_GET_VFPD(mregs->lcdcon2) + 1;
fbinfo->var.vsync_len = S3C2410_LCDCON2_GET_VSPW(mregs->lcdcon2) + 1;
fbinfo->var.left_margin = S3C2410_LCDCON3_GET_HFPD(mregs->lcdcon3) + 1;
dprintk("got LCD region\n");
- ret = request_irq(irq, s3c2410fb_irq, SA_INTERRUPT, pdev->name, info);
+ ret = request_irq(irq, s3c2410fb_irq, IRQF_DISABLED, pdev->name, info);
if (ret) {
dev_err(&pdev->dev, "cannot get irq %d - err %d\n", irq, ret);
ret = -EBUSY;
goto release_irq;
}
- clk_use(info->clk);
clk_enable(info->clk);
dprintk("got and enabled clock\n");
s3c2410fb_unmap_video_memory(info);
release_clock:
clk_disable(info->clk);
- clk_unuse(info->clk);
clk_put(info->clk);
release_irq:
free_irq(irq,info);
* shutdown the lcd controller
*/
-static void s3c2410fb_stop_lcd(void)
+static void s3c2410fb_stop_lcd(struct s3c2410fb_info *fbi)
{
unsigned long flags;
- unsigned long tmp;
local_irq_save(flags);
- tmp = readl(S3C2410_LCDCON1);
- writel(tmp & ~S3C2410_LCDCON1_ENVID, S3C2410_LCDCON1);
+ fbi->regs.lcdcon1 &= ~S3C2410_LCDCON1_ENVID;
+ writel(fbi->regs.lcdcon1, S3C2410_LCDCON1);
local_irq_restore(flags);
}
struct s3c2410fb_info *info = fbinfo->par;
int irq;
- s3c2410fb_stop_lcd();
+ s3c2410fb_stop_lcd(info);
msleep(1);
s3c2410fb_unmap_video_memory(info);
if (info->clk) {
clk_disable(info->clk);
- clk_unuse(info->clk);
clk_put(info->clk);
info->clk = NULL;
}
struct fb_info *fbinfo = platform_get_drvdata(dev);
struct s3c2410fb_info *info = fbinfo->par;
- s3c2410fb_stop_lcd();
+ s3c2410fb_stop_lcd(info);
/* sleep before disabling the clock, we need to ensure
* the LCD DMA engine is not going to get back on the bus