From: Bhaumik Bhatt <bbhatt@codeaurora.org>
To: manivannan.sadhasivam@linaro.org
Cc: linux-arm-msm@vger.kernel.org, hemantk@codeaurora.org,
jhugo@codeaurora.org, linux-kernel@vger.kernel.org,
loic.poulain@linaro.org, Bhaumik Bhatt <bbhatt@codeaurora.org>
Subject: [PATCH v5 1/9] bus: mhi: core: Allow sending the STOP channel command
Date: Fri, 8 Jan 2021 12:54:49 -0800 [thread overview]
Message-ID: <1610139297-36435-2-git-send-email-bbhatt@codeaurora.org> (raw)
In-Reply-To: <1610139297-36435-1-git-send-email-bbhatt@codeaurora.org>
Add support to allow sending the STOP channel command. If a
client driver would like to STOP a channel and have the device
retain the channel context instead of issuing a RESET to it and
clearing the context, this would provide support for it after
the ability to send this command is exposed to clients.
Signed-off-by: Bhaumik Bhatt <bbhatt@codeaurora.org>
Reviewed-by: Hemant Kumar <hemantk@codeaurora.org>
---
drivers/bus/mhi/core/main.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/bus/mhi/core/main.c b/drivers/bus/mhi/core/main.c
index 8576b0f..c22d7df 100644
--- a/drivers/bus/mhi/core/main.c
+++ b/drivers/bus/mhi/core/main.c
@@ -1224,6 +1224,11 @@ int mhi_send_cmd(struct mhi_controller *mhi_cntrl,
cmd_tre->dword[0] = MHI_TRE_CMD_RESET_DWORD0;
cmd_tre->dword[1] = MHI_TRE_CMD_RESET_DWORD1(chan);
break;
+ case MHI_CMD_STOP_CHAN:
+ cmd_tre->ptr = MHI_TRE_CMD_STOP_PTR;
+ cmd_tre->dword[0] = MHI_TRE_CMD_STOP_DWORD0;
+ cmd_tre->dword[1] = MHI_TRE_CMD_STOP_DWORD1(chan);
+ break;
case MHI_CMD_START_CHAN:
cmd_tre->ptr = MHI_TRE_CMD_START_PTR;
cmd_tre->dword[0] = MHI_TRE_CMD_START_DWORD0;
--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project
next prev parent reply other threads:[~2021-01-08 20:56 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-08 20:54 [PATCH v5 0/9] Updates to MHI channel handling Bhaumik Bhatt
2021-01-08 20:54 ` Bhaumik Bhatt [this message]
2021-01-21 11:25 ` [PATCH v5 1/9] bus: mhi: core: Allow sending the STOP channel command Manivannan Sadhasivam
2021-01-08 20:54 ` [PATCH v5 2/9] bus: mhi: core: Allow channel to be disabled from stopped state Bhaumik Bhatt
2021-01-21 11:35 ` Manivannan Sadhasivam
2021-01-08 20:54 ` [PATCH v5 3/9] bus: mhi: core: Improvements to the channel handling state machine Bhaumik Bhatt
2021-01-21 14:43 ` Manivannan Sadhasivam
2021-01-08 20:54 ` [PATCH v5 4/9] bus: mhi: core: Clear configuration from channel context during reset Bhaumik Bhatt
2021-01-21 14:47 ` Manivannan Sadhasivam
2021-01-08 20:54 ` [PATCH v5 5/9] bus: mhi: core: Add support to stop or start channel data transfers Bhaumik Bhatt
2021-01-21 14:50 ` Manivannan Sadhasivam
2021-02-04 20:25 ` Bhaumik Bhatt
2021-01-08 20:54 ` [PATCH v5 6/9] bus: mhi: core: Check channel execution environment before issuing reset Bhaumik Bhatt
2021-01-21 15:12 ` Manivannan Sadhasivam
2021-02-04 20:23 ` Bhaumik Bhatt
2021-01-08 20:54 ` [PATCH v5 7/9] bus: mhi: core: Remove __ prefix for MHI channel unprepare function Bhaumik Bhatt
2021-01-08 20:54 ` [PATCH v5 8/9] bus: mhi: Improve documentation on channel transfer setup APIs Bhaumik Bhatt
2021-01-08 20:54 ` [PATCH v5 9/9] bus: mhi: core: Do not clear channel context more than once Bhaumik Bhatt
2021-01-09 4:39 ` Hemant Kumar
2021-01-21 15:15 ` Manivannan Sadhasivam
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1610139297-36435-2-git-send-email-bbhatt@codeaurora.org \
--to=bbhatt@codeaurora.org \
--cc=hemantk@codeaurora.org \
--cc=jhugo@codeaurora.org \
--cc=linux-arm-msm@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=loic.poulain@linaro.org \
--cc=manivannan.sadhasivam@linaro.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).