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authorTimur Tabi <timur@freescale.com>2011-12-19 16:26:18 -0600
committerFlorian Tobias Schandinat <FlorianSchandinat@gmx.de>2012-01-03 15:59:09 +0000
commit05342c0bdfd519873462e04ad81be07c9cd3c1e1 (patch)
treef16833fe4a4bee45d74f6383b623411c00cb6024 /drivers/video/fsl-diu-fb.c
parente09a8c3a42f4c90d300678b198410e6fcc8eddb6 (diff)
drivers/video: fsl-diu-fb: merge fsl_diu_alloc() into map_video_memory()
Functions fsl_diu_alloc() and fsl_diu_free() were only being called by map_video_memory() and unmap_video_memory(), respectively. Signed-off-by: Timur Tabi <timur@freescale.com> Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Diffstat (limited to 'drivers/video/fsl-diu-fb.c')
-rw-r--r--drivers/video/fsl-diu-fb.c47
1 files changed, 11 insertions, 36 deletions
diff --git a/drivers/video/fsl-diu-fb.c b/drivers/video/fsl-diu-fb.c
index e2f4f32692a..acf292bfba0 100644
--- a/drivers/video/fsl-diu-fb.c
+++ b/drivers/video/fsl-diu-fb.c
@@ -461,37 +461,6 @@ static enum fsl_diu_monitor_port fsl_diu_name_to_port(const char *s)
return diu_ops.valid_monitor_port(port);
}
-/**
- * fsl_diu_alloc - allocate memory for the DIU
- * @size: number of bytes to allocate
- * @param: returned physical address of memory
- *
- * This function allocates a physically-contiguous block of memory.
- */
-static void *fsl_diu_alloc(size_t size, phys_addr_t *phys)
-{
- void *virt;
-
- virt = alloc_pages_exact(size, GFP_DMA | __GFP_ZERO);
- if (virt)
- *phys = virt_to_phys(virt);
-
- return virt;
-}
-
-/**
- * fsl_diu_free - release DIU memory
- * @virt: pointer returned by fsl_diu_alloc()
- * @size: number of bytes allocated by fsl_diu_alloc()
- *
- * This function releases memory allocated by fsl_diu_alloc().
- */
-static void fsl_diu_free(void *virt, size_t size)
-{
- if (virt && size)
- free_pages_exact(virt, size);
-}
-
/*
* Workaround for failed writing desc register of planes.
* Needed with MPC5121 DIU rev 2.0 silicon.
@@ -875,16 +844,17 @@ static void update_lcdc(struct fb_info *info)
static int map_video_memory(struct fb_info *info)
{
- phys_addr_t phys;
u32 smem_len = info->fix.line_length * info->var.yres_virtual;
+ void *p;
- info->screen_base = fsl_diu_alloc(smem_len, &phys);
- if (info->screen_base == NULL) {
+ p = alloc_pages_exact(smem_len, GFP_DMA | __GFP_ZERO);
+ if (!p) {
dev_err(info->dev, "unable to allocate fb memory\n");
return -ENOMEM;
}
mutex_lock(&info->mm_lock);
- info->fix.smem_start = (unsigned long) phys;
+ info->screen_base = p;
+ info->fix.smem_start = virt_to_phys(info->screen_base);
info->fix.smem_len = smem_len;
mutex_unlock(&info->mm_lock);
info->screen_size = info->fix.smem_len;
@@ -894,12 +864,17 @@ static int map_video_memory(struct fb_info *info)
static void unmap_video_memory(struct fb_info *info)
{
- fsl_diu_free(info->screen_base, info->fix.smem_len);
+ void *p = info->screen_base;
+ size_t l = info->fix.smem_len;
+
mutex_lock(&info->mm_lock);
info->screen_base = NULL;
info->fix.smem_start = 0;
info->fix.smem_len = 0;
mutex_unlock(&info->mm_lock);
+
+ if (p)
+ free_pages_exact(p, l);
}
/*