From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 805881378 for ; Mon, 30 Jan 2023 08:21:38 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 34597C433EF; Mon, 30 Jan 2023 08:21:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1675066898; bh=WwkPXZGkPyDpbHWPA0xmbqcsk0ksZyd2XYAxiGvBPlI=; h=Date:From:To:Cc:Subject:From; b=sjKVgil5HxEdEqovCL6qPmTaLNGYh/2sxOrLZwYbsjWCVRJqhrlS29TBtcqK6Fk/3 Gfo7VlQVoKkh9IaKli8iE6RLpdoHT2gsg1cL4qwhgOz9biroqqc6jC2OpeCoCR/zQi JE70Oo3WsPaczCmpNTMFqZJYvu7kTF2LmPBeGyUq5dQoJ6VAZ8u/dStS635nwVhLVT fldIyaYWId/duF+UVpfln0jyQ5MRHkEZDzrblrSj33t8OK/0g52l8xBp5yF5/28112 5GOdFB4h1Oez/lSFdqiU6tT6mvVcat27lz2fU+1+SHvuQmHkjCdxOhK7m4hjqjrQ+d bqYfa4EYE1VJQ== Date: Mon, 30 Jan 2023 13:51:31 +0530 From: Manivannan Sadhasivam To: gregkh@linuxfoundation.org Cc: mhi@lists.linux.dev, quic_carlv@quicinc.com, slark_xiao@163.com, error27@gmail.com Subject: [GIT PULL] MHI changes for v6.3 Message-ID: <20230130082131.GB12687@thinkpad> Precedence: bulk X-Mailing-List: mhi@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit 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 62c0f48fa940d5c9f96b55b79c6c1b9cec6d0d45: bus: mhi: ep: Fix off by one in mhi_ep_process_cmd_ring() (2023-01-27 12:31:42 +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