From 1c93bd154ae0a58910fe7a1247bc5e95ffbbf441 Mon Sep 17 00:00:00 2001 From: Aaro Koskinen Date: Sat, 10 May 2014 01:52:44 +0300 Subject: [PATCH] video: omap: delete support for early fbmem allocation Commit b25ccd6cc06409ac10d6a517edbc38a46c23c56f (OMAPFB: remove early mem alloc from old omapfb) deleted the support for early fbmem allocation from the platform code, but some code still remains in the driver side. Delete this code now, as it repotedly causes build issues on !MMU. The patch was tested on Amstrad E3 and Nokia 770 and framebuffer functionality is not affected. Signed-off-by: Aaro Koskinen Acked-by: Tony Lindgren Signed-off-by: Tomi Valkeinen --- drivers/video/fbdev/omap/lcdc.c | 67 +-------------------------------- 1 file changed, 2 insertions(+), 65 deletions(-) diff --git a/drivers/video/fbdev/omap/lcdc.c b/drivers/video/fbdev/omap/lcdc.c index b52f62595f65a..6efa2591eaa8d 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); -- 2.39.5