Re: [PATCH v3 2/2] bus: mhi: Fix MHI DMA structure endianness

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Hi Paul,

On 2021-06-30 06:52 PM, Hemant Kumar wrote:
Hi Paul,
On Tue, 2021-06-29 at 15:53 +1200, Paul Davey wrote:
The MHI driver does not work on big endian architectures.  The
controller never transitions into mission mode.  This appears to be
due
to the modem device expecting the various contexts and transfer rings
to
have fields in little endian order in memory, but the driver
constructs
them in native endianness.

Fix MHI event, channel and command contexts and TRE handling macros
to
use explicit conversion to little endian.  Mark fields in relevant
structures as little endian to document this requirement.

Signed-off-by: Paul Davey <paul.davey@xxxxxxxxxxxxxxxxxxx>
---
Removed Tested-by as patch has changed somewhat from v2.
Bhaumik is going to help testing V2 on x86 platform. Change looks good
to me. Will ack it once testing is done.
 [..]


Thanks,
Hemant

Just following up on this one. I have been seeing problems with my setup and
will try to get to this test next week.

Thanks,
Bhaumik
---
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project



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