spi: pl022: use DMA by default when probing from DT

Message ID 1369335277-9254-1-git-send-email-linus.walleij@stericsson.com
State New
Headers show

Commit Message

Linus Walleij May 23, 2013, 6:54 p.m.
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(+)

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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",