OMAPFB: move dssdev->sync call out from omapfb_realloc_fbmem

Currently omapfb_realloc_fbmem() calls dssdev->sync to ensure any
possible frame update is finished. This patch moves the call to
dssdev->sync from omapfb_realloc_fbmem to the callers of
omapfb_realloc_fbmem.

This keeps dssdev related calls out from omapfb_realloc_fbmem, which
makes sense as the function should only deal with fb memory. Also, this
seems to avoid a lockdep warning about possible circular locking.
However, the exact reason for that warning is still unclear.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>

3 files changed, 8 insertions, 4 deletions

diff --git a/drivers/video/omap2/omapfb/omapfb-ioctl.c b/drivers/video/omap2/omapfb/omapfb-ioctl.c
index 94de47ea71a5..d30b45d72649 100644
--- a/drivers/video/omap2/omapfb/omapfb-ioctl.c
+++ b/drivers/video/omap2/omapfb/omapfb-ioctl.c
@@ -211,6 +211,7 @@ static int omapfb_setup_mem(struct fb_info *fbi, struct omapfb_mem_info *mi)
 {
         struct omapfb_info *ofbi = FB2OFB(fbi);
         struct omapfb2_device *fbdev = ofbi->fbdev;
+        struct omap_dss_device *display = fb2display(fbi);
         struct omapfb2_mem_region *rg;
         int r = 0, i;
         size_t size;
@@ -220,6 +221,9 @@ static int omapfb_setup_mem(struct fb_info *fbi, struct omapfb_mem_info *mi)
 
         size = PAGE_ALIGN(mi->size);
 
+        if (display && display->driver->sync)
+                display->driver->sync(display);
+
         rg = ofbi->region;
 
         down_write_nested(&rg->lock, rg->id);
diff --git a/drivers/video/omap2/omapfb/omapfb-main.c b/drivers/video/omap2/omapfb/omapfb-main.c
index 1a69d7ca92e5..85130fa7ae5a 100644
--- a/drivers/video/omap2/omapfb/omapfb-main.c
+++ b/drivers/video/omap2/omapfb/omapfb-main.c
@@ -1611,7 +1611,6 @@ int omapfb_realloc_fbmem(struct fb_info *fbi, unsigned long size, int type)
 {
         struct omapfb_info *ofbi = FB2OFB(fbi);
         struct omapfb2_device *fbdev = ofbi->fbdev;
-        struct omap_dss_device *display = fb2display(fbi);
         struct omapfb2_mem_region *rg = ofbi->region;
         unsigned long old_size = rg->size;
         unsigned long old_paddr = rg->paddr;
@@ -1626,9 +1625,6 @@ int omapfb_realloc_fbmem(struct fb_info *fbi, unsigned long size, int type)
         if (old_size == size && old_type == type)
                 return 0;
 
-        if (display && display->driver->sync)
-                        display->driver->sync(display);
-
         omapfb_free_fbmem(fbi);
 
         if (size == 0) {
diff --git a/drivers/video/omap2/omapfb/omapfb-sysfs.c b/drivers/video/omap2/omapfb/omapfb-sysfs.c
index 17aa174e187c..18fa9e1d0033 100644
--- a/drivers/video/omap2/omapfb/omapfb-sysfs.c
+++ b/drivers/video/omap2/omapfb/omapfb-sysfs.c
@@ -441,6 +441,7 @@ static ssize_t store_size(struct device *dev, struct device_attribute *attr,
         struct fb_info *fbi = dev_get_drvdata(dev);
         struct omapfb_info *ofbi = FB2OFB(fbi);
         struct omapfb2_device *fbdev = ofbi->fbdev;
+        struct omap_dss_device *display = fb2display(fbi);
         struct omapfb2_mem_region *rg;
         unsigned long size;
         int r;
@@ -455,6 +456,9 @@ static ssize_t store_size(struct device *dev, struct device_attribute *attr,
         if (!lock_fb_info(fbi))
                 return -ENODEV;
 
+        if (display && display->driver->sync)
+                display->driver->sync(display);
+
         rg = ofbi->region;
 
         down_write_nested(&rg->lock, rg->id);