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From: Paul Davey <>
To: Manivannan Sadhasivam <>
	Bhaumik Bhatt <>,
	Hemant Kumar <>,
	Paul Davey <>
Subject: [PATCH v2 0/2] bus: mhi: Fix MHI on big endian architectures
Date: Wed, 23 Jun 2021 14:43:25 +1200	[thread overview]
Message-ID: <> (raw)

I encountered some problems getting the MHI driver to work on an Octeon
3 platform these seem to all be related to endianness issues.  The modem
interface appears to require the DMA structures to be in little endian,
however the MHI core driver was assembling them in native endianness.

Using little endian explicitly allows the interface to function as

Changes in v2:
  - use __fls instead of find_last_bit in pm_state conversion patch as
    requested by Hemant Kumar <>

Paul Davey (2):
  bus: mhi: Fix pm_state conversion to string
  bus: mhi: Fix MHI DMA structure endianness

 drivers/bus/mhi/core/debugfs.c  |  26 +++----
 drivers/bus/mhi/core/init.c     |  43 ++++++-----
 drivers/bus/mhi/core/internal.h | 129 ++++++++++++++++----------------
 drivers/bus/mhi/core/main.c     |  36 ++++-----
 drivers/bus/mhi/core/pm.c       |   8 +-
 5 files changed, 124 insertions(+), 118 deletions(-)


             reply	other threads:[~2021-06-23  2:43 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-23  2:43 Paul Davey [this message]
2021-06-23  2:43 ` [PATCH v2 1/2] bus: mhi: Fix pm_state conversion to string Paul Davey
2021-06-23  2:43 ` [PATCH v2 2/2] bus: mhi: Fix MHI DMA structure endianness Paul Davey
2021-06-24  2:11   ` Bhaumik Bhatt
2021-06-24 23:12     ` Paul Davey

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