When looking up a DMA controller through its OF node, probe it if it hasn't already. The goal is to reduce deferred probes to a minimum, as it makes it very cumbersome to find out why a device failed to probe, and can introduce very big delays in when a critical device is probed. Signed-off-by: Tomeu Vizoso <tomeu.vizoso@xxxxxxxxxxxxx> --- Changes in v3: None Changes in v2: None drivers/dma/of-dma.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/dma/of-dma.c b/drivers/dma/of-dma.c index 1e1f2986eba8..9cfc818b9dc8 100644 --- a/drivers/dma/of-dma.c +++ b/drivers/dma/of-dma.c @@ -17,6 +17,7 @@ #include <linux/slab.h> #include <linux/of.h> #include <linux/of_dma.h> +#include <linux/of_platform.h> static LIST_HEAD(of_dma_list); static DEFINE_MUTEX(of_dma_lock); @@ -263,6 +264,8 @@ struct dma_chan *of_dma_request_slave_channel(struct device_node *np, if (of_dma_match_channel(np, name, i, &dma_spec)) continue; + of_platform_probe(dma_spec.np); + mutex_lock(&of_dma_lock); ofdma = of_dma_find_controller(&dma_spec); -- 2.4.3 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
