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,
Bhaumik Bhatt <bbhatt@codeaurora.org>
Subject: [PATCH v5 06/10] bus: mhi: core: Introduce helper function to check device state
Date: Thu, 23 Jul 2020 15:36:38 -0700 [thread overview]
Message-ID: <1595543802-17859-7-git-send-email-bbhatt@codeaurora.org> (raw)
In-Reply-To: <1595543802-17859-1-git-send-email-bbhatt@codeaurora.org>
Introduce a helper function to determine whether the device is in a
powered ON state and resides in one of the active MHI states. This will
allow for some use cases where access can be pre-determined.
Signed-off-by: Bhaumik Bhatt <bbhatt@codeaurora.org>
Reviewed-by: Jeffrey Hugo <jhugo@codeaurora.org>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
---
drivers/bus/mhi/core/internal.h | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/bus/mhi/core/internal.h b/drivers/bus/mhi/core/internal.h
index 1bbd6e9..5a81a42 100644
--- a/drivers/bus/mhi/core/internal.h
+++ b/drivers/bus/mhi/core/internal.h
@@ -598,6 +598,11 @@ int mhi_pm_m3_transition(struct mhi_controller *mhi_cntrl);
int __mhi_device_get_sync(struct mhi_controller *mhi_cntrl);
int mhi_send_cmd(struct mhi_controller *mhi_cntrl, struct mhi_chan *mhi_chan,
enum mhi_cmd_type cmd);
+static inline bool mhi_is_active(struct mhi_controller *mhi_cntrl)
+{
+ return (mhi_cntrl->dev_state >= MHI_STATE_M0 &&
+ mhi_cntrl->dev_state <= MHI_STATE_M3_FAST);
+}
static inline void mhi_trigger_resume(struct mhi_controller *mhi_cntrl)
{
--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project
next prev parent reply other threads:[~2020-07-23 22:36 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-23 22:36 [PATCH v5 00/10] Introduce features and debugfs/sysfs entries for MHI Bhaumik Bhatt
2020-07-23 22:36 ` [PATCH v5 01/10] bus: mhi: core: Remove double occurrence for mhi_ctrl_ev_task() declaration Bhaumik Bhatt
2020-07-23 22:36 ` [PATCH v5 02/10] bus: mhi: core: Abort suspends due to outgoing pending packets Bhaumik Bhatt
2020-07-23 22:36 ` [PATCH v5 03/10] bus: mhi: core: Use helper API to trigger a non-blocking host resume Bhaumik Bhatt
2020-07-24 6:09 ` Manivannan Sadhasivam
2020-07-23 22:36 ` [PATCH v5 04/10] bus: mhi: core: Trigger host resume if suspended during mhi_device_get() Bhaumik Bhatt
2020-07-23 22:36 ` [PATCH v5 05/10] bus: mhi: core: Use generic name field for an MHI device Bhaumik Bhatt
2020-07-23 22:36 ` Bhaumik Bhatt [this message]
2020-07-23 22:36 ` [PATCH v5 07/10] bus: mhi: core: Introduce debugfs entries for MHI Bhaumik Bhatt
2020-07-24 4:11 ` kernel test robot
2020-07-24 23:46 ` kernel test robot
2020-07-23 22:36 ` [PATCH v5 08/10] bus: mhi: core: Use counters to track MHI device state transitions Bhaumik Bhatt
2020-07-24 5:24 ` Manivannan Sadhasivam
2020-07-23 22:36 ` [PATCH v5 09/10] bus: mhi: core: Read and save device hardware information from BHI Bhaumik Bhatt
2020-07-23 22:36 ` [PATCH v5 10/10] bus: mhi: core: Introduce sysfs entries for MHI Bhaumik Bhatt
2020-07-24 5:42 ` Manivannan Sadhasivam
2020-07-28 0:29 ` bbhatt
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=1595543802-17859-7-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=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).