sg_alloc_table_from_buf() provides an easy solution to create an sg_table
from a virtual address pointer. This function takes care of dealing with
vmallocated buffers, buffer alignment, or DMA engine limitations (maximum
DMA transfer size).
Signed-off-by: Boris Brezillon
---
include/linux/scatte
On Fri, 2016-04-01 at 11:07 +0800, Yangbo Lu wrote:
> This patchset is used to fix a host version register bug in the T4240-R1.0
> -R2.0
> eSDHC controller. To get the SoC version and revision, it's needed to add
> the
> GUTS driver to access the global utilities registers.
>
> So, the first three
Add an helper to check if a virtual address is in the highmem region.
Signed-off-by: Boris Brezillon
---
include/linux/highmem.h | 13 +
1 file changed, 13 insertions(+)
diff --git a/include/linux/highmem.h b/include/linux/highmem.h
index bb3f329..13dff37 100644
--- a/include/linux/
Replace custom implementation of sg_alloc_table_from_buf() by a call to
sg_alloc_table_from_buf().
Signed-off-by: Boris Brezillon
---
drivers/spi/spi.c | 45 +
1 file changed, 5 insertions(+), 40 deletions(-)
diff --git a/drivers/spi/spi.c b/drivers/s
Hello,
This series has been extracted from another series [1] adding support
for DMA operations in a NAND driver.
The reason I decided to post those patches separately is because they
are touching core stuff, and I'd like to have feedback on these specific
aspects.
The idea is to provide a gener
Hi Russell,
On Thu, 31 Mar 2016 15:14:13 +0100
Russell King - ARM Linux wrote:
> On Thu, Mar 31, 2016 at 02:29:42PM +0200, Boris Brezillon wrote:
> > sg_alloc_table_from_buf() provides an easy solution to create an sg_table
> > from a virtual address pointer. This function takes care of dealing
Some NAND controller drivers are making use of DMA to transfer data from
the controller to the buffer passed by the MTD user.
Provide a generic mtd_map/unmap_buf() implementation to avoid open coded
(and sometime erroneous) implementations.
Signed-off-by: Boris Brezillon
---
drivers/mtd/mtdcore.
On 03/31/2016 08:07 PM, Yangbo Lu wrote:
> drivers/clk/clk-qoriq.c | 3 +--
>
For clk part:
Acked-by: Stephen Boyd
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a Linux Foundation Collaborative Project
_
Commit cbf8277ef456 ("iommu/arm-smmu: Treat IOMMU_DOMAIN_DMA as bypass
for now") ignores requests to attach a device to the default domain
since, without IOMMU-basked DMA ops available everywhere, the default
domain will just lead to unexpected transaction faults being reported.
Unfortunately, the
