> -Original Message-
> From: Shawn Guo [mailto:shawn...@kernel.org]
> Sent: Friday, January 11, 2019 2:10 PM
> To: Nipun Gupta
> Cc: Leo Li ; robh...@kernel.org;
> mark.rutl...@arm.com; robin.mur...@arm.com; will.dea...@arm.com;
> linux-arm-ker...@lists.i
Signed-off-by: Nipun Gupta
---
arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi
b/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi
index dec0c2d..b8e31a1 100644
--- a/arch/arm64/boot/dts/freescale/fsl
This patch also adds the iommu-map property in fsl-mc node, so
that fsl-mc can use iommu.
Signed-off-by: Nipun Gupta
---
These patches are based over:
git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux.git,
as there are couple of changes related to fsl-mc bus in this tree:
https
The existing IOMMU bindings cannot be used to specify the relationship
between fsl-mc devices and IOMMUs. This patch adds a generic binding for
mapping fsl-mc devices to IOMMUs, using iommu-map property.
Signed-off-by: Nipun Gupta
Reviewed-by: Rob Herring
---
.../devicetree/bindings/misc/fsl
With of_pci_map_rid available for all the busses, use the function
for configuration of devices on fsl-mc bus
Signed-off-by: Nipun Gupta
---
drivers/iommu/of_iommu.c | 20
1 file changed, 20 insertions(+)
diff --git a/drivers/iommu/of_iommu.c b/drivers/iommu/of_iommu.c
This patch adds support of dma configuration for devices on fsl-mc
bus using 'dma_configure' callback for busses. Also, directly calling
arch_setup_dma_ops is removed from the fsl-mc bus.
Signed-off-by: Nipun Gupta
Reviewed-by: Laurentiu Tudor
---
drivers/bus/fsl-mc/fsl-mc-
fsl-mc bus support the new iommu-map property. Comply to this binding
for fsl_mc bus.
Signed-off-by: Nipun Gupta
Reviewed-by: Laurentiu Tudor
---
arch/arm64/boot/dts/freescale/fsl-ls208xa.dtsi | 6 +-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/arch/arm64/boot/dts
of_dma_configure() API expects coherent_dma_mask to be correctly
set in the devices. This patch does the needful.
Signed-off-by: Nipun Gupta
---
drivers/bus/fsl-mc/fsl-mc-bus.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/bus/fsl-mc/fsl-mc-bus.c b/drivers/bus/fsl-mc/fsl-mc-bus.c
iommu-map property is also used by devices with fsl-mc. This
patch moves the of_pci_map_rid to generic location, so that it
can be used by other busses too.
'of_pci_map_rid' is renamed here to 'of_map_rid' and there is no
functional change done in the API.
Signed-off-by: Nipu
h 5 in two separate patches (now patch 5/7 and patch 6/7)
- add changelog text in patch 3/7 and patch 5/7
- typo fix
Nipun Gupta (7):
Docs: dt: add fsl-mc iommu-map device-tree binding
iommu: of: make of_pci_map_rid() available for other devices too
iommu: support iommu configuration for fsl-
Implement bus specific support for the fsl-mc bus including
registering arm_smmu_ops and bus specific device add operations.
Signed-off-by: Nipun Gupta
---
drivers/iommu/arm-smmu.c | 7 +++
drivers/iommu/iommu.c| 21 +
include/linux/fsl/mc.h | 8
include
> -Original Message-
> From: Laurentiu Tudor
> Sent: Monday, May 14, 2018 7:10 PM
> To: Nipun Gupta ; robin.mur...@arm.com;
> will.dea...@arm.com; mark.rutl...@arm.com; catalin.mari...@arm.com
> Cc: h...@lst.de; gre...@linuxfoundation.org; j...@8bytes.org;
> robh...@
Signed-off-by: Nipun Gupta
---
drivers/iommu/of_iommu.c | 20
1 file changed, 20 insertions(+)
diff --git a/drivers/iommu/of_iommu.c b/drivers/iommu/of_iommu.c
index 811e160..284474d 100644
--- a/drivers/iommu/of_iommu.c
+++ b/drivers/iommu/of_iommu.c
@@ -24,6 +24,7
Implement bus specific support for the fsl-mc bus including
registering arm_smmu_ops and bus specific device add operations.
Signed-off-by: Nipun Gupta
---
drivers/iommu/arm-smmu.c | 7 +++
drivers/iommu/iommu.c| 21 +
include/linux/fsl/mc.h | 8
include
Signed-off-by: Nipun Gupta
---
drivers/bus/fsl-mc/fsl-mc-bus.c | 16
1 file changed, 12 insertions(+), 4 deletions(-)
diff --git a/drivers/bus/fsl-mc/fsl-mc-bus.c b/drivers/bus/fsl-mc/fsl-mc-bus.c
index 5d8266c..624828b 100644
--- a/drivers/bus/fsl-mc/fsl-mc-bus.c
+++ b/drivers
fsl-mc bus support the new iommu-map property. Comply to this binding
for fsl_mc bus.
Signed-off-by: Nipun Gupta
---
arch/arm64/boot/dts/freescale/fsl-ls208xa.dtsi | 6 +-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/arch/arm64/boot/dts/freescale/fsl-ls208xa.dtsi
b/arch
The existing IOMMU bindings cannot be used to specify the relationship
between fsl-mc devices and IOMMUs. This patch adds a generic binding for
mapping fsl-mc devices to IOMMUs, using iommu-map property.
Signed-off-by: Nipun Gupta
Reviewed-by: Rob Herring
---
.../devicetree/bindings/misc/fsl
.org/patch/10317337/
and make corresponding changes for dma configuration of devices on
fsl-mc bus
Changes in v3:
- move of_map_rid in drivers/of/address.c
Changes in v4:
- move of_map_rid in drivers/of/base.c
Nipun Gupta (6):
Docs: dt: add fsl-mc iommu-map device-tree binding
iommu-map property is also used by devices with fsl-mc. This
patch moves the of_pci_map_rid to generic location, so that it
can be used by other busses too.
'of_pci_map_rid' is renamed here to 'of_map_rid' and there is no
functional change done in the API.
Signed
> -Original Message-
> From: Rob Herring [mailto:r...@kernel.org]
> Sent: Friday, April 27, 2018 10:46 PM
> To: Nipun Gupta
> Cc: robin.mur...@arm.com; will.dea...@arm.com; mark.rutl...@arm.com;
> catalin.mari...@arm.com; h...@lst.de; gre...@linuxfoundation.org;
ion of new busses w.r.t. adding the dma
configuration functionality.
This patch also updates the PCI, Platform, ACPI and host1x bus to
use new introduced callbacks.
Suggested-by: Christoph Hellwig
Signed-off-by: Nipun Gupta
Reviewed-by: Greg Kroah-Hartman
Acked-by: Bjorn Helgaas # PCI parts
described by the
firmware.
Signed-off-by: Nipun Gupta
Acked-by: Bjorn Helgaas # PCI parts
---
Changes in v2:
- This is a new change suggested by Robin and Christoph
and is added to the series.
Changes in v3:
- Rebase and changes corresponding to the changes in patch 1/2
Changes in v4
> -Original Message-
> From: Christoph Hellwig [mailto:h...@lst.de]
> Sent: Monday, April 23, 2018 6:27 PM
> To: Nipun Gupta
> Cc: robin.mur...@arm.com; h...@lst.de; li...@armlinux.org.uk;
> gre...@linuxfoundation.org; m.szyprow...@samsung.com;
> bhelg...@google.
iommu-map property is also used by devices with fsl-mc. This
patch moves the of_pci_map_rid to generic location, so that it
can be used by other busses too.
'of_pci_map_rid' is renamed here to 'of_map_rid' and there is no
functional change done in the API.
Signed
Signed-off-by: Nipun Gupta
---
drivers/bus/fsl-mc/fsl-mc-bus.c | 16
1 file changed, 12 insertions(+), 4 deletions(-)
diff --git a/drivers/bus/fsl-mc/fsl-mc-bus.c b/drivers/bus/fsl-mc/fsl-mc-bus.c
index 5d8266c..624828b 100644
--- a/drivers/bus/fsl-mc/fsl-mc-bus.c
+++ b/drivers
Implement bus specific support for the fsl-mc bus including
registering arm_smmu_ops and bus specific device add operations.
Signed-off-by: Nipun Gupta
---
drivers/iommu/arm-smmu.c | 7 +++
drivers/iommu/iommu.c| 21 +
include/linux/fsl/mc.h | 8
include
fsl-mc bus support the new iommu-map property. Comply to this binding
for fsl_mc bus.
Signed-off-by: Nipun Gupta
---
arch/arm64/boot/dts/freescale/fsl-ls208xa.dtsi | 6 +-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/arch/arm64/boot/dts/freescale/fsl-ls208xa.dtsi
b/arch
Signed-off-by: Nipun Gupta
---
drivers/iommu/of_iommu.c | 20
1 file changed, 20 insertions(+)
diff --git a/drivers/iommu/of_iommu.c b/drivers/iommu/of_iommu.c
index ea9ecef..3687882 100644
--- a/drivers/iommu/of_iommu.c
+++ b/drivers/iommu/of_iommu.c
@@ -25,6 +25,7
The existing IOMMU bindings cannot be used to specify the relationship
between fsl-mc devices and IOMMUs. This patch adds a generic binding for
mapping fsl-mc devices to IOMMUs, using iommu-map property.
Signed-off-by: Nipun Gupta
---
.../devicetree/bindings/misc/fsl,qoriq-mc.txt | 39
.org/patch/10317337/
and make corresponding changes for dma configuration of devices on
fsl-mc bus
Changes in v3:
- move of_map_rid in drivers/of/address.c
Nipun Gupta (6):
Docs: dt: add fsl-mc iommu-map device-tree binding
iommu: of: make of_pci_map_rid() available for other d
> -Original Message-
> From: Robin Murphy [mailto:robin.mur...@arm.com]
> Sent: Tuesday, April 17, 2018 10:23 PM
> To: Nipun Gupta ; robh...@kernel.org;
> frowand.l...@gmail.com
> Cc: will.dea...@arm.com; mark.rutl...@arm.com; catalin.mari...@arm.com;
Implement bus specific support for the fsl-mc bus including
registering arm_smmu_ops and bus specific device add operations.
Signed-off-by: Nipun Gupta
---
drivers/iommu/arm-smmu.c | 7 +++
drivers/iommu/iommu.c| 21 +
include/linux/fsl/mc.h | 8
include
Signed-off-by: Nipun Gupta
---
drivers/bus/fsl-mc/fsl-mc-bus.c | 16
1 file changed, 12 insertions(+), 4 deletions(-)
diff --git a/drivers/bus/fsl-mc/fsl-mc-bus.c b/drivers/bus/fsl-mc/fsl-mc-bus.c
index 5d8266c..624828b 100644
--- a/drivers/bus/fsl-mc/fsl-mc-bus.c
+++ b/drivers
Fsl-mc bus now support the iommu-map property. Comply to this binding for
fsl_mc bus. This patch also updates the dts w.r.t. the DMA configuration.
Signed-off-by: Nipun Gupta
---
arch/arm64/boot/dts/freescale/fsl-ls208xa.dtsi | 6 +-
1 file changed, 5 insertions(+), 1 deletion(-)
diff
iommu-map property is also used by devices with fsl-mc. This
patch moves the of_pci_map_rid to generic location, so that it
can be used by other busses too.
Signed-off-by: Nipun Gupta
---
drivers/iommu/of_iommu.c | 106 +--
drivers/of/irq.c
Signed-off-by: Nipun Gupta
---
drivers/iommu/of_iommu.c | 20
1 file changed, 20 insertions(+)
diff --git a/drivers/iommu/of_iommu.c b/drivers/iommu/of_iommu.c
index 4e7712f..af4fc3b 100644
--- a/drivers/iommu/of_iommu.c
+++ b/drivers/iommu/of_iommu.c
@@ -24,6 +24,7
h the SMMU using this
IOMMU binding (patch 2,3,4)
- Adds the dma configuration support for fsl-mc bus (patch 5)
- Updates the fsl-mc device node with iommu/dma related changes (patch6)
Nipun Gupta (6):
Docs: dt: add fsl-mc iommu-map device-tree binding
iommu: of: make of_pci_map_rid()
The existing IOMMU bindings cannot be used to specify the relationship
between fsl-mc devices and IOMMUs. This patch adds a generic binding for
mapping fsl-mc devices to IOMMUs, using iommu-map property.
Signed-off-by: Nipun Gupta
---
.../devicetree/bindings/misc/fsl,qoriq-mc.txt | 39
ion of new busses w.r.t. adding the dma
configuration functionality.
This patch also updates the PCI, Platform, ACPI and host1x bus to
use new introduced callbacks.
Suggested-by: Christoph Hellwig
Signed-off-by: Nipun Gupta
Reviewed-by: Greg Kroah-Hartman
---
- The patches are based on the c
described by the
firmware.
Signed-off-by: Nipun Gupta
---
Changes in v2:
- This is a new change suggested by Robin and Christoph
and is added to the series.
Changes in v3:
- Rebase and changes corresponding to the changes in patch 1/2
drivers/amba/bus.c| 1 -
drivers/base/platform.c
I am just going to send it within an hour :)
Thanks,
Nipun
> -Original Message-
> From: Christoph Hellwig [mailto:h...@lst.de]
> Sent: Friday, March 30, 2018 12:46
> To: Nipun Gupta
> Cc: h...@lst.de; robin.mur...@arm.com; li...@armlinux.org.uk;
> gre...@linuxfoundat
> -Original Message-
> From: Christoph Hellwig [mailto:h...@lst.de]
> Sent: Thursday, March 22, 2018 13:49
> To: Nipun Gupta
>
> > --- a/drivers/dma/qcom/hidma_mgmt.c
> > +++ b/drivers/dma/qcom/hidma_mgmt.c
> > @@ -398,7 +398,7 @@ static int __init
> -Original Message-
> From: Christoph Hellwig [mailto:h...@lst.de]
> Sent: Thursday, March 22, 2018 13:46
> To: Nipun Gupta
>
> > +static int amba_dma_configure(struct device *dev)
> > +{
> > + return dma_common_configure(dev);
> > +}
&g
> -Original Message-
> From: Greg KH [mailto:gre...@linuxfoundation.org]
> Sent: Wednesday, March 21, 2018 15:05
> To: Nipun Gupta
> Cc: robin.mur...@arm.com; h...@lst.de; li...@armlinux.org.uk;
> m.szyprow...@samsung.com; bhelg...@google.com; zaj...@gmail.com;
>
> -Original Message-
> From: Greg KH [mailto:gre...@linuxfoundation.org]
> Sent: Wednesday, March 21, 2018 15:00
> > +int dma_configure(struct device *dev)
> > +{
> > + if (dev->bus->dma_configure)
> > + return dev->bus->dma_configure(dev);
> > +
> > + return 0;
> > +}
>
> -Original Message-
> From: Bharat Bhushan
> Sent: Wednesday, March 21, 2018 12:49
> >
> > +int dma_configure(struct device *dev)
> > +{
> > + if (dev->bus->dma_configure)
> > + return dev->bus->dma_configure(dev);
>
> What if dma_common_configure() is called in case "bus->
described by the
firmware.
Signed-off-by: Nipun Gupta
---
Changes in v2:
- This is a new change suggested by Robin and Christoph
and is added to the series.
drivers/amba/bus.c| 3 +--
drivers/base/dma-mapping.c| 4 ++--
drivers/base/platform.c | 3 +--
drivers/bcma/main.c
addition of new busses w.r.t. adding the dma
configuration functionality.
This patch also updates the PCI, Platform, ACPI and host1x bus to
use new introduced callbacks.
Suggested-by: Christoph Hellwig
Signed-off-by: Nipun Gupta
---
- The patches are based on the comments on:
https://patch
> -Original Message-
> From: Robin Murphy [mailto:robin.mur...@arm.com]
> Sent: Tuesday, March 13, 2018 17:06
>
> On 12/03/18 15:24, Nipun Gupta wrote:
> > The change introduces 'dma_configure' & 'dma_deconfigure'as
> > bus callback fu
> -Original Message-
> From: Christoph Hellwig [mailto:h...@lst.de]
> Sent: Tuesday, March 13, 2018 13:05
> > +int amba_dma_configure(struct device *dev)
> > +{
> > + enum dev_dma_attr attr;
> > + int ret = 0;
> > +
> > + if (dev->of_node) {
> > + ret = of_dma_configure(de
> -Original Message-
> From: Sinan Kaya [mailto:ok...@codeaurora.org]
> Sent: Monday, March 12, 2018 22:14
> To: Nipun Gupta ; h...@lst.de;
> robin.mur...@arm.com; li...@armlinux.org.uk; gre...@linuxfoundation.org;
> m.szyprow...@samsung.com; bhelg...@google.com
e PCI, Platform and ACPI bus to use
new introduced callbacks.
Signed-off-by: Nipun Gupta
---
- This patch is based on the comments on:
https://patchwork.kernel.org/patch/10259087/
- I have validated for PCI and platform, but not for AMBA as I
do not have infrastructure to validate it.
Ca
> -Original Message-
> From: Christoph Hellwig [mailto:h...@lst.de]
> Sent: Thursday, March 08, 2018 13:11
>
> On Tue, Mar 06, 2018 at 04:41:56AM +0000, Nipun Gupta wrote:
> > Sorry for asking a trivial question - looking into dma_configure() I see
> > that
&
Hi Rob,
> -Original Message-
> From: Rob Herring [mailto:r...@kernel.org]
> Sent: Thursday, March 08, 2018 4:10
> To: Nipun Gupta
> Cc: will.dea...@arm.com; robin.mur...@arm.com; mark.rutl...@arm.com;
> catalin.mari...@arm.com; devicet...@vger.kernel.org; stuyo...@g
> From: Robin Murphy [mailto:robin.mur...@arm.com]
> Sent: Tuesday, March 06, 2018 0:22
>
> On 05/03/18 18:39, Christoph Hellwig wrote:
> > On Mon, Mar 05, 2018 at 03:48:32PM +, Robin Murphy wrote:
> >> Unfortunately for us, fsl-mc is conceptually rather like PCI in that it's
> >> software-d
> -Original Message-
> From: Robin Murphy [mailto:robin.mur...@arm.com]
> Sent: Monday, March 05, 2018 21:07
> To: Nipun Gupta ; will.dea...@arm.com;
> mark.rutl...@arm.com; catalin.mari...@arm.com
> Cc: io...@lists.linux-foundation.org; robh...@kernel.org; h...@l
> -Original Message-
> From: Robin Murphy [mailto:robin.mur...@arm.com]
> Sent: Monday, March 05, 2018 20:23
> To: Nipun Gupta ; will.dea...@arm.com;
> mark.rutl...@arm.com; catalin.mari...@arm.com
> Cc: io...@lists.linux-foundation.org; robh...@kernel.org; h...@l
The existing IOMMU bindings cannot be used to specify the relationship
between fsl-mc devices and IOMMUs. This patch adds a binding for
mapping fsl-mc devices to IOMMUs, using a new iommu-parent property.
Signed-off-by: Nipun Gupta
---
.../devicetree/bindings/misc/fsl,qoriq-mc.txt | 31
Implement bus specific support for the fsl-mc bus including
registering arm_smmu_ops and bus specific device add operations.
Signed-off-by: Nipun Gupta
---
drivers/iommu/arm-smmu.c | 7 +++
drivers/iommu/iommu.c| 21 +
include/linux/fsl/mc.h | 8
include
Signed-off-by: Nipun Gupta
---
drivers/base/dma-mapping.c | 7 +++
1 file changed, 7 insertions(+)
diff --git a/drivers/base/dma-mapping.c b/drivers/base/dma-mapping.c
index 3b11835..2279c4d 100644
--- a/drivers/base/dma-mapping.c
+++ b/drivers/base/dma-mapping.c
@@ -334,6 +334,7 @@ void
Signed-off-by: Nipun Gupta
---
arch/arm64/boot/dts/freescale/fsl-ls208xa.dtsi | 6 +-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/arch/arm64/boot/dts/freescale/fsl-ls208xa.dtsi
b/arch/arm64/boot/dts/freescale/fsl-ls208xa.dtsi
index f3a40af..1f15492 100644
--- a/arch/arm64
The dma setup for fsl-mc devices is being done from device_add()
function. So, no need to call in mc bus driver.
Signed-off-by: Nipun Gupta
---
drivers/bus/fsl-mc/fsl-mc-bus.c | 5 +
1 file changed, 1 insertion(+), 4 deletions(-)
diff --git a/drivers/bus/fsl-mc/fsl-mc-bus.c b/drivers/bus
net driver functionality will break.
Nipun Gupta (6):
Docs: dt: add fsl-mc iommu-parent device-tree binding
iommu: support iommu configuration for fsl-mc devices
iommu: arm-smmu: Add support for the fsl-mc bus
bus: fsl-mc: remove dma ops setup from driver
dma-mapping: support fsl-mc bus
dts:
Signed-off-by: Nipun Gupta
---
drivers/iommu/of_iommu.c | 23 +++
1 file changed, 23 insertions(+)
diff --git a/drivers/iommu/of_iommu.c b/drivers/iommu/of_iommu.c
index 5c36a8b..cc2fb9c 100644
--- a/drivers/iommu/of_iommu.c
+++ b/drivers/iommu/of_iommu.c
@@ -24,6 +24,7
Devices on MC bus can be deferred because of dependencies on other modules
(such as IOMMU). Those are not the actual errors; as probing is again
done by the kernel at later stages. So this patch avoids the error print
in such case.
Signed-off-by: Nipun Gupta
---
Resending v2 as missed mentioning
After this patch following is the flow of execution:
FSL_MC Bus probe ---> dprc probe ---> dprc devices scan --->
allocate IRQ's ---> probe of devices in DPRC container.
Signed-off-by: Nipun Gupta
---
Resending v2 as missed mentioning the changes in the version
Changes in
Devices on MC bus can be deferred because of dependencies on other modules
(such as IOMMU). Those are not the actual errors; as probing is again
done by the kernel at later stages. So this patch avoids the error print
in such case.
Signed-off-by: Nipun Gupta
---
drivers/staging/fsl-mc/bus/fsl
After this patch following is the flow of execution:
FSL_MC Bus probe ---> dprc probe ---> dprc devices scan --->
allocate IRQ's ---> probe of devices in DPRC container.
Signed-off-by: Nipun Gupta
---
drivers/staging/fsl-mc/bus/dprc-driver.c | 49 ++--
> -Original Message-
> From: Laurentiu Tudor
> Sent: Wednesday, December 06, 2017 19:00
> To: Nipun Gupta ; stuyo...@gmail.com; Bharat
> Bhushan ; gre...@linuxfoundation.org;
> cakt...@gmail.com; bretth...@gmail.com; a...@arndb.de
> Cc: linux-kerne
> -Original Message-
> From: Greg KH [mailto:gre...@linuxfoundation.org]
> Sent: Wednesday, December 06, 2017 16:46
> To: Nipun Gupta
> Cc: Laurentiu Tudor ; stuyo...@gmail.com; Bharat
> Bhushan ; cakt...@gmail.com;
> bretth...@gmail.com; a...@arndb.de; de...@driver
tion fails. This patch allocates the IRQ resources
before scanning all the objects in the DPRC container.
Signed-off-by: Nipun Gupta
---
drivers/staging/fsl-mc/bus/dprc-driver.c | 49 ++--
1 file changed, 27 insertions(+), 22 deletions(-)
diff --git a/drivers/staging/
Signed-off-by: Nipun Gupta
---
drivers/staging/fsl-mc/bus/fsl-mc-bus.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/staging/fsl-mc/bus/fsl-mc-bus.c
b/drivers/staging/fsl-mc/bus/fsl-mc-bus.c
index 409f2b9..10cee00 100644
--- a/drivers/staging/fsl-mc/bus/fsl-mc
Add a helper macro to return if a device has a bus type of fsl_mc.
This makes the bus driver code more readable and provides a way for
drivers like the SMMU driver to easily check the bus type.
Signed-off-by: Nipun Gupta
Signed-off-by: Bharat Bhushan
---
drivers/staging/fsl-mc/bus/dprc
Add a helper macro to return if a device has a bus type of fsl_mc.
This makes the bus driver code more readable and provides a way for
drivers like the SMMU driver to easily check the bus type.
Signed-off-by: Nipun Gupta
Signed-off-by: Bharat Bhushan
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drivers/staging/fsl-mc/bus/dprc
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