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path: root/drivers/video/fbdev/omap/lcdc.c
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Diffstat (limited to 'drivers/video/fbdev/omap/lcdc.c')
-rw-r--r--drivers/video/fbdev/omap/lcdc.c67
1 files changed, 2 insertions, 65 deletions
diff --git a/drivers/video/fbdev/omap/lcdc.c b/drivers/video/fbdev/omap/lcdc.c
index b52f62595f65..6efa2591eaa8 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);