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gdc: Sync the gdc dma buffer

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PD#173042: gdc: Sync the gdc dma buffer

Change-Id: Id4f70c2379ab82519e3b3eeb780f8db17b4deeaf
Signed-off-by: Keke Li <keke.li@amlogic.com>
This commit is contained in:
keke.li
2018-09-26 13:51:54 +08:00
committed by Jianxin Pan
parent 308d7f2682
commit 565f193b8a
1 changed files with 30 additions and 0 deletions
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30
drivers/amlogic/media/gdc/app/gdc_module.c
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@@ -249,6 +249,30 @@ static long meson_gdc_set_input_addr(uint32_t start_addr,
return 0;
}
static void meson_gdc_dma_flush(struct device *dev,
dma_addr_t addr,
size_t size)
{
if (dev == NULL) {
LOG(LOG_ERR, "Error input param");
return;
}
dma_sync_single_for_device(dev, addr, size, DMA_TO_DEVICE);
}
static void meson_gdc_cache_flush(struct device *dev,
dma_addr_t addr,
size_t size)
{
if (dev == NULL) {
LOG(LOG_ERR, "Error input param");
return;
}
dma_sync_single_for_cpu(dev, addr, size, DMA_FROM_DEVICE);
}
static long meson_gdc_ioctl(struct file *file, unsigned int cmd,
unsigned long arg)
{
@@ -346,6 +370,10 @@ static long meson_gdc_ioctl(struct file *file, unsigned int cmd,
gs->fh = fh;
mutex_lock(&fh->gdev->d_mutext);
meson_gdc_dma_flush(&fh->gdev->pdev->dev,
fh->i_paddr, fh->i_len);
meson_gdc_dma_flush(&fh->gdev->pdev->dev,
fh->c_paddr, fh->c_len);
ret = gdc_run(gs);
if (ret < 0)
LOG(LOG_ERR, "gdc process failed ret = %ld\n", ret);
@@ -356,6 +384,8 @@ static long meson_gdc_ioctl(struct file *file, unsigned int cmd,
LOG(LOG_ERR, "gdc timeout\n");
gdc_stop(gs);
meson_gdc_cache_flush(&fh->gdev->pdev->dev,
fh->o_paddr, fh->o_len);
mutex_unlock(&fh->gdev->d_mutext);
break;
case GDC_REQUEST_BUFF: