diff options
Diffstat (limited to 'drivers/soc/tegra/fuse/fuse-tegra20.c')
| -rw-r--r-- | drivers/soc/tegra/fuse/fuse-tegra20.c | 13 |
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); |