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From 3657147d6fea1977c07373325626bf50fe15bcfc Mon Sep 17 00:00:00 2001
From: Stuart Yoder <stuart.yoder@nxp.com>
Date: Mon, 11 Apr 2016 11:49:13 -0500
Subject: [PATCH 171/226] staging: fsl-mc: set up coherent dma ops for added
devices
Unless discovered devices have the no shareability flag set,
set up coherent dma ops for them.
Signed-off-by: Stuart Yoder <stuart.yoder@nxp.com>
Acked-by: German Rivera <german.rivera@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/staging/fsl-mc/bus/mc-bus.c | 4 ++++
1 file changed, 4 insertions(+)
--- a/drivers/staging/fsl-mc/bus/mc-bus.c
+++ b/drivers/staging/fsl-mc/bus/mc-bus.c
@@ -469,6 +469,10 @@ int fsl_mc_device_add(struct dprc_obj_de
goto error_cleanup_dev;
}
+ /* Objects are coherent, unless 'no shareability' flag set. */
+ if (!(obj_desc->flags & DPRC_OBJ_FLAG_NO_MEM_SHAREABILITY))
+ arch_setup_dma_ops(&mc_dev->dev, 0, 0, NULL, true);
+
/*
* The device-specific probe callback will get invoked by device_add()
*/
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