diff options
| -rw-r--r-- | drivers/video/fbdev/omap/lcdc.c | 67 |
1 files changed, 2 insertions, 65 deletions
diff --git a/drivers/video/fbdev/omap/lcdc.c b/drivers/video/fbdev/omap/lcdc.c index b52f62595f6..6efa2591eaa 100644 --- a/drivers/video/fbdev/omap/lcdc.c +++ b/drivers/video/fbdev/omap/lcdc.c @@ -74,7 +74,6 @@ static struct omap_lcd_controller { void (*dma_callback)(void *data); void *dma_callback_data; - int fbmem_allocated; dma_addr_t vram_phys; void *vram_virt; unsigned long vram_size; @@ -611,42 +610,6 @@ static void lcdc_dma_handler(u16 status, void *data) lcdc.dma_callback(lcdc.dma_callback_data); } -static int mmap_kern(void) -{ - struct vm_struct *kvma; - struct vm_area_struct vma; - pgprot_t pgprot; - unsigned long vaddr; - - kvma = get_vm_area(lcdc.vram_size, VM_IOREMAP); - if (kvma == NULL) { - dev_err(lcdc.fbdev->dev, "can't get kernel vm area\n"); - return -ENOMEM; - } - vma.vm_mm = &init_mm; - - vaddr = (unsigned long)kvma->addr; - vma.vm_start = vaddr; - vma.vm_end = vaddr + lcdc.vram_size; - - pgprot = pgprot_writecombine(pgprot_kernel); - if (io_remap_pfn_range(&vma, vaddr, - lcdc.vram_phys >> PAGE_SHIFT, - lcdc.vram_size, pgprot) < 0) { - dev_err(lcdc.fbdev->dev, "kernel mmap for FB memory failed\n"); - return -EAGAIN; - } - - lcdc.vram_virt = (void *)vaddr; - - return 0; -} - -static void unmap_kern(void) -{ - vunmap(lcdc.vram_virt); -} - static int alloc_palette_ram(void) { lcdc.palette_virt = dma_alloc_writecombine(lcdc.fbdev->dev, @@ -703,8 +666,6 @@ static void free_fbmem(void) static int setup_fbmem(struct omapfb_mem_desc *req_md) { - int r; - if (!req_md->region_cnt) { dev_err(lcdc.fbdev->dev, "no memory regions defined\n"); return -EINVAL; @@ -715,31 +676,7 @@ static int setup_fbmem(struct omapfb_mem_desc *req_md) req_md->region_cnt = 1; } - if (req_md->region[0].paddr == 0) { - lcdc.fbmem_allocated = 1; - if ((r = alloc_fbmem(&req_md->region[0])) < 0) - return r; - return 0; - } - - lcdc.vram_phys = req_md->region[0].paddr; - lcdc.vram_size = req_md->region[0].size; - - if ((r = mmap_kern()) < 0) - return r; - - dev_dbg(lcdc.fbdev->dev, "vram at %08x size %08lx mapped to 0x%p\n", - lcdc.vram_phys, lcdc.vram_size, lcdc.vram_virt); - - return 0; -} - -static void cleanup_fbmem(void) -{ - if (lcdc.fbmem_allocated) - free_fbmem(); - else - unmap_kern(); + return alloc_fbmem(&req_md->region[0]); } static int omap_lcdc_init(struct omapfb_device *fbdev, int ext_mode, @@ -833,7 +770,7 @@ static void omap_lcdc_cleanup(void) { if (!lcdc.ext_mode) free_palette_ram(); - cleanup_fbmem(); + free_fbmem(); omap_free_lcd_dma(); free_irq(OMAP_LCDC_IRQ, lcdc.fbdev); clk_disable(lcdc.lcd_ck); |