diff options
Diffstat (limited to 'target/linux/layerscape/patches-4.4/7171-staging-fsl-mc-set-up-coherent-dma-ops-for-added-dev.patch')
| -rw-r--r-- | target/linux/layerscape/patches-4.4/7171-staging-fsl-mc-set-up-coherent-dma-ops-for-added-dev.patch | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/target/linux/layerscape/patches-4.4/7171-staging-fsl-mc-set-up-coherent-dma-ops-for-added-dev.patch b/target/linux/layerscape/patches-4.4/7171-staging-fsl-mc-set-up-coherent-dma-ops-for-added-dev.patch new file mode 100644 index 0000000000..d6de805e6a --- /dev/null +++ b/target/linux/layerscape/patches-4.4/7171-staging-fsl-mc-set-up-coherent-dma-ops-for-added-dev.patch @@ -0,0 +1,29 @@ +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() + */ |