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ARM: pxa168fb: add .remove function

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The pxa168fb driver is missing .remove function so the framebuffer isn't
correctly shut down when the module is removed.

Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
This commit is contained in:
Haojian Zhuang 2010-08-29 20:32:16 -04:00 committed by Eric Miao
parent 6aafc5f394
commit ba1aa3248e
1 changed files with 47 additions and 0 deletions
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47
drivers/video/pxa168fb.c
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@ -784,12 +784,53 @@ failed:
return ret;
}
static int __devexit pxa168fb_remove(struct platform_device *pdev)
{
struct pxa168fb_info *fbi = platform_get_drvdata(pdev);
struct fb_info *info;
int irq;
unsigned int data;
if (!fbi)
return 0;
/* disable DMA transfer */
data = readl(fbi->reg_base + LCD_SPU_DMA_CTRL0);
data &= ~CFG_GRA_ENA_MASK;
writel(data, fbi->reg_base + LCD_SPU_DMA_CTRL0);
info = fbi->info;
unregister_framebuffer(info);
writel(GRA_FRAME_IRQ0_ENA(0x0), fbi->reg_base + SPU_IRQ_ENA);
if (info->cmap.len)
fb_dealloc_cmap(&info->cmap);
irq = platform_get_irq(pdev, 0);
free_irq(irq, fbi);
dma_free_writecombine(fbi->dev, PAGE_ALIGN(info->fix.smem_len),
info->screen_base, info->fix.smem_start);
iounmap(fbi->reg_base);
clk_disable(fbi->clk);
clk_put(fbi->clk);
framebuffer_release(info);
return 0;
}
static struct platform_driver pxa168fb_driver = {
.driver = {
.name = "pxa168-fb",
.owner = THIS_MODULE,
},
.probe = pxa168fb_probe,
.remove = __devexit_p(pxa168fb_remove),
};
static int __init pxa168fb_init(void)
@ -798,6 +839,12 @@ static int __init pxa168fb_init(void)
}
module_init(pxa168fb_init);
static void __exit pxa168fb_exit(void)
{
platform_driver_unregister(&pxa168fb_driver);
}
module_exit(pxa168fb_exit);
MODULE_AUTHOR("Lennert Buytenhek <buytenh@marvell.com> "
"Green Wan <gwan@marvell.com>");
MODULE_DESCRIPTION("Framebuffer driver for PXA168/910");