1 files changed, 15 insertions, 2 deletions

diff --git a/drivers/video/fsl-diu-fb.c b/drivers/video/fsl-diu-fb.c
index 48905d5f4e8d..db3e360e6aad 100644
--- a/drivers/video/fsl-diu-fb.c
+++ b/drivers/video/fsl-diu-fb.c
@@ -1108,6 +1108,10 @@ static int fsl_diu_open(struct fb_info *info, int user)
         struct mfb_info *mfbi = info->par;
         int res = 0;
 
+        /* free boot splash memory on first /dev/fb0 open */
+        if (!mfbi->index && diu_ops.release_bootmem)
+                diu_ops.release_bootmem();
+
         spin_lock(&diu_lock);
         mfbi->count++;
         if (mfbi->count == 1) {
@@ -1435,6 +1439,7 @@ static int __devinit fsl_diu_probe(struct of_device *ofdev,
         int ret, i, error = 0;
         struct resource res;
         struct fsl_diu_data *machine_data;
+        int diu_mode;
 
         machine_data = kzalloc(sizeof(struct fsl_diu_data), GFP_KERNEL);
         if (!machine_data)
@@ -1471,7 +1476,9 @@ static int __devinit fsl_diu_probe(struct of_device *ofdev,
                 goto error2;
         }
 
-        out_be32(&dr.diu_reg->diu_mode, 0);             /* disable DIU anyway*/
+        diu_mode = in_be32(&dr.diu_reg->diu_mode);
+        if (diu_mode != MFB_MODE1)
+                out_be32(&dr.diu_reg->diu_mode, 0);     /* disable DIU */
 
         /* Get the IRQ of the DIU */
         machine_data->irq = irq_of_parse_and_map(np, 0);
@@ -1519,7 +1526,13 @@ static int __devinit fsl_diu_probe(struct of_device *ofdev,
         machine_data->dummy_ad->offset_xyd = 0;
         machine_data->dummy_ad->next_ad = 0;
 
-        out_be32(&dr.diu_reg->desc[0], machine_data->dummy_ad->paddr);
+        /*
+         * Let DIU display splash screen if it was pre-initialized
+         * by the bootloader, set dummy area descriptor otherwise.
+         */
+        if (diu_mode != MFB_MODE1)
+                out_be32(&dr.diu_reg->desc[0], machine_data->dummy_ad->paddr);
+
         out_be32(&dr.diu_reg->desc[1], machine_data->dummy_ad->paddr);
         out_be32(&dr.diu_reg->desc[2], machine_data->dummy_ad->paddr);