* [GIT PULL v2] MHI changes for v6.3
@ 2023-02-02 17:26 Manivannan Sadhasivam
2023-02-03 6:01 ` Greg KH
0 siblings, 1 reply; 2+ messages in thread
From: Manivannan Sadhasivam @ 2023-02-02 17:26 UTC (permalink / raw)
To: gregkh; +Cc: mhi, quic_carlv, slark_xiao, error27
The following changes since commit 1b929c02afd37871d5afb9d498426f83432e71c2:
Linux 6.2-rc1 (2022-12-25 13:41:39 -0800)
are available in the Git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/mani/mhi.git tags/mhi-for-v6.3
for you to fetch changes up to 3c54a3ff0a2cdcd902482a62fef813f1d46e5eaf:
bus: mhi: ep: Fix off by one in mhi_ep_process_cmd_ring() (2023-02-02 22:52:24 +0530)
----------------------------------------------------------------
MHI Host
========
- Fixed the module description
MHI Endpoint
============
- Powered down the MHI EP stack completely during MHI RESET instead of just
doing transfer abort as the MMIO register access will be prohibited
afterwards. EP stack will also be powered on again in case the RESET
happened due to SYS_ERR.
- Added a sanity check before processing the command ring to make sure that
the channel is supported by the controller.
- Added a check to make sure the xfer_cb is available for the channel
before trying to send the error status to the client drivers. This
helps in avoiding a potential null pointer dereference.
- Fixed the debug log of RESET command
- Modified the channel ring handler lock to protect the whole handler
instead of locking it partially. This helps in avoiding a race that may
happen if a channel STOP/RESET command is issued by the host parallely.
- Saved the MHI state locally during suspend and resume. Otherwise, the MHI
EP stack will not be aware of a channel that got disabled and may try to
access it later.
- Changed the MHI state_lock to mutex instead of spinlock. This helps in
avoiding the sleeping in atomic bug reported by Dan Carpenter and also
allows the lock to be held throughout the state change.
- Fixed the off by one error while doing the MHI channel check during
command ring processing.
MHI Generic
===========
- Updated the MHI toplevel Makefile to use Kconfig flags for building the
host and endpoint sub-directories conditionally.
----------------------------------------------------------------
Carl Vanderlip (1):
bus: mhi: Update Makefile to used Kconfig flags
Dan Carpenter (1):
bus: mhi: ep: Fix off by one in mhi_ep_process_cmd_ring()
Manivannan Sadhasivam (7):
bus: mhi: ep: Power up/down MHI stack during MHI RESET
bus: mhi: ep: Check if the channel is supported by the controller
bus: mhi: ep: Only send -ENOTCONN status if client driver is available
bus: mhi: ep: Fix the debug message for MHI_PKT_TYPE_RESET_CHAN_CMD cmd
bus: mhi: ep: Move chan->lock to the start of processing queued ch ring
bus: mhi: ep: Save channel state locally during suspend and resume
bus: mhi: ep: Change state_lock to mutex
Slark Xiao (1):
bus: mhi: host: Update mhi driver description
drivers/bus/mhi/Makefile | 4 ++--
drivers/bus/mhi/ep/main.c | 85 ++++++++++++++++++++++++++++++++++++++++++++++---------------------------------------
drivers/bus/mhi/ep/sm.c | 42 ++++++++++++++++++++++++------------------
drivers/bus/mhi/host/init.c | 2 +-
include/linux/mhi_ep.h | 4 ++--
5 files changed, 75 insertions(+), 62 deletions(-)
--
மணிவண்ணன் சதாசிவம்
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [GIT PULL v2] MHI changes for v6.3
2023-02-02 17:26 [GIT PULL v2] MHI changes for v6.3 Manivannan Sadhasivam
@ 2023-02-03 6:01 ` Greg KH
0 siblings, 0 replies; 2+ messages in thread
From: Greg KH @ 2023-02-03 6:01 UTC (permalink / raw)
To: Manivannan Sadhasivam; +Cc: mhi, quic_carlv, slark_xiao, error27
On Thu, Feb 02, 2023 at 10:56:38PM +0530, Manivannan Sadhasivam wrote:
> The following changes since commit 1b929c02afd37871d5afb9d498426f83432e71c2:
>
> Linux 6.2-rc1 (2022-12-25 13:41:39 -0800)
>
> are available in the Git repository at:
>
> git://git.kernel.org/pub/scm/linux/kernel/git/mani/mhi.git tags/mhi-for-v6.3
Pulled and pushed out, thanks.
greg k-h
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2023-02-03 6:01 ` Greg KH
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