[rfc/rft/patch v2 10/19] usb: musb: enabling dma option as module parameter

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From: Arnaud Mandy <ext-arnaud.2.mandy@xxxxxxxxx>

adding possibility to use dma for usb transfer.

Signed-off-by: Arnaud Mandy <ext-arnaud.2.mandy@xxxxxxxxx>
Signed-off-by: Felipe Balbi <felipe.balbi@xxxxxxxxx>
---
 drivers/usb/musb/musb_core.c |    8 ++++++--
 1 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c
index 90655df..4336856 100644
--- a/drivers/usb/musb/musb_core.c
+++ b/drivers/usb/musb/musb_core.c
@@ -114,9 +114,13 @@
 
 #define TA_WAIT_BCON(m) max_t(int, (m)->a_wait_bcon, OTG_TIME_A_WAIT_BCON)
 
-static int __initdata use_dma = 0;
-#else
+#ifndef CONFIG_MUSB_PIO_ONLY
 static int __initdata use_dma = 1;
+#else
+static int __initdata use_dma;
+#endif
+module_param(use_dma, bool, 0);
+MODULE_PARM_DESC(use_dma, "enable/disable use of DMA");
 
 unsigned musb_debug;
 module_param_named(debug, musb_debug, uint, S_IRUGO | S_IWUSR);
-- 
1.6.4.2.253.g0b1fac

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