diff options
Diffstat (limited to 'drivers/of')
| -rw-r--r-- | drivers/of/platform.c | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/drivers/of/platform.c b/drivers/of/platform.c index dc6c53b716..edfeb192d4 100644 --- a/drivers/of/platform.c +++ b/drivers/of/platform.c @@ -101,12 +101,14 @@ static struct device_node *of_get_next_dma_parent(const struct device_node *np) */ bool of_dma_is_coherent(struct device_node *node) { - while (node) { - if (of_property_read_bool(node, "dma-coherent")) - return true; - if (of_property_read_bool(node, "dma-noncoherent")) - return false; - node = of_get_next_dma_parent(node); + if (IS_ENABLED(CONFIG_OF_DMA_COHERENCY)) { + while (node) { + if (of_property_read_bool(node, "dma-coherent")) + return true; + if (of_property_read_bool(node, "dma-noncoherent")) + return false; + node = of_get_next_dma_parent(node); + } } return IS_ENABLED(CONFIG_ARCH_DMA_DEFAULT_COHERENT); |