aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/soc/tegra/fuse/fuse-tegra20.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/soc/tegra/fuse/fuse-tegra20.c')
-rw-r--r--drivers/soc/tegra/fuse/fuse-tegra20.c13
1 files changed, 11 insertions, 2 deletions
diff --git a/drivers/soc/tegra/fuse/fuse-tegra20.c b/drivers/soc/tegra/fuse/fuse-tegra20.c
index 294413a969a0..49ff017f3ded 100644
--- a/drivers/soc/tegra/fuse/fuse-tegra20.c
+++ b/drivers/soc/tegra/fuse/fuse-tegra20.c
@@ -59,7 +59,7 @@ static u32 tegra20_fuse_read(struct tegra_fuse *fuse, unsigned int offset)
mutex_lock(&fuse->apbdma.lock);
- fuse->apbdma.config.src_addr = fuse->apbdma.phys + FUSE_BEGIN + offset;
+ fuse->apbdma.config.src_addr = fuse->phys + FUSE_BEGIN + offset;
err = dmaengine_slave_config(fuse->apbdma.chan, &fuse->apbdma.config);
if (err)
@@ -96,6 +96,13 @@ out:
return value;
}
+static bool dma_filter(struct dma_chan *chan, void *filter_param)
+{
+ struct device_node *np = chan->device->dev->of_node;
+
+ return of_device_is_compatible(np, "nvidia,tegra20-apbdma");
+}
+
static int tegra20_fuse_probe(struct tegra_fuse *fuse)
{
dma_cap_mask_t mask;
@@ -103,7 +110,7 @@ static int tegra20_fuse_probe(struct tegra_fuse *fuse)
dma_cap_zero(mask);
dma_cap_set(DMA_SLAVE, mask);
- fuse->apbdma.chan = dma_request_channel(mask, NULL, NULL);
+ fuse->apbdma.chan = __dma_request_channel(&mask, dma_filter, NULL);
if (!fuse->apbdma.chan)
return -EPROBE_DEFER;
@@ -119,6 +126,8 @@ static int tegra20_fuse_probe(struct tegra_fuse *fuse)
fuse->apbdma.config.dst_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
fuse->apbdma.config.src_maxburst = 1;
fuse->apbdma.config.dst_maxburst = 1;
+ fuse->apbdma.config.direction = DMA_DEV_TO_MEM;
+ fuse->apbdma.config.device_fc = false;
init_completion(&fuse->apbdma.wait);
mutex_init(&fuse->apbdma.lock);

Privacy Policy