diff options
Diffstat (limited to 'drivers/dma/ti-dma-crossbar.c')
| -rw-r--r-- | drivers/dma/ti-dma-crossbar.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/drivers/dma/ti-dma-crossbar.c b/drivers/dma/ti-dma-crossbar.c index 2f65a8fde21d..7df910e7c348 100644 --- a/drivers/dma/ti-dma-crossbar.c +++ b/drivers/dma/ti-dma-crossbar.c @@ -49,12 +49,12 @@ struct ti_am335x_xbar_data { struct ti_am335x_xbar_map { u16 dma_line; - u16 mux_val; + u8 mux_val; }; -static inline void ti_am335x_xbar_write(void __iomem *iomem, int event, u16 val) +static inline void ti_am335x_xbar_write(void __iomem *iomem, int event, u8 val) { - writeb_relaxed(val & 0x1f, iomem + event); + writeb_relaxed(val, iomem + event); } static void ti_am335x_xbar_free(struct device *dev, void *route_data) @@ -105,7 +105,7 @@ static void *ti_am335x_xbar_route_allocate(struct of_phandle_args *dma_spec, } map->dma_line = (u16)dma_spec->args[0]; - map->mux_val = (u16)dma_spec->args[2]; + map->mux_val = (u8)dma_spec->args[2]; dma_spec->args[2] = 0; dma_spec->args_count = 2; @@ -262,13 +262,14 @@ static void *ti_dra7_xbar_route_allocate(struct of_phandle_args *dma_spec, mutex_lock(&xbar->mutex); map->xbar_out = find_first_zero_bit(xbar->dma_inuse, xbar->dma_requests); - mutex_unlock(&xbar->mutex); if (map->xbar_out == xbar->dma_requests) { + mutex_unlock(&xbar->mutex); dev_err(&pdev->dev, "Run out of free DMA requests\n"); kfree(map); return ERR_PTR(-ENOMEM); } set_bit(map->xbar_out, xbar->dma_inuse); + mutex_unlock(&xbar->mutex); map->xbar_in = (u16)dma_spec->args[0]; |