diff options
Diffstat (limited to 'drivers/video/fsl-diu-fb.c')
| -rw-r--r-- | drivers/video/fsl-diu-fb.c | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/drivers/video/fsl-diu-fb.c b/drivers/video/fsl-diu-fb.c index 48905d5f4e8..db3e360e6aa 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); |