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