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[38/39] spi: pl022: use DMA by default when probing from DT

Message ID 1369991954-17406-39-git-send-email-linus.walleij@stericsson.com
State Accepted
Commit 5b547a75405184d54d148132b9e4600516c49c6e
Headers show

Commit Message

Linus Walleij May 31, 2013, 9:19 a.m. UTC 
From: Linus Walleij <linus.walleij@linaro.org>

In the past we controlled the selection of DMA for a certain
host by a boolean switch in the platform data. Currently
there is no way to enable DMA on a PL022 probed from the
device tree. Let's default to trying to obtain DMA channels
in the DT case, and then we can always fail (and thus fall
back to PIO mode).

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/spi/spi-pl022.c | 1 +
 1 file changed, 1 insertion(+)
diff mbox

Patch

diff --git a/drivers/spi/spi-pl022.c b/drivers/spi/spi-pl022.c
index 371cc66f..3b24654 100644
--- a/drivers/spi/spi-pl022.c
+++ b/drivers/spi/spi-pl022.c
@@ -2083,6 +2083,7 @@  pl022_platform_data_dt_get(struct device *dev)
 	}
 
 	pd->bus_id = -1;
+	pd->enable_dma = 1;
 	of_property_read_u32(np, "num-cs", &tmp);
 	pd->num_chipselect = tmp;
 	of_property_read_u32(np, "pl022,autosuspend-delay",