From: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
To: Bhaumik Bhatt <bbhatt@codeaurora.org>
Cc: linux-arm-msm@vger.kernel.org, hemantk@codeaurora.org,
jhugo@codeaurora.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v4 4/9] bus: mhi: core: Trigger a host resume when device vote is requested
Date: Sat, 4 Jul 2020 20:26:55 +0530 [thread overview]
Message-ID: <20200704145655.GD3066@Mani-XPS-13-9360> (raw)
In-Reply-To: <1593448782-8385-5-git-send-email-bbhatt@codeaurora.org>
On Mon, Jun 29, 2020 at 09:39:37AM -0700, Bhaumik Bhatt wrote:
> It is possible that the host may be suspending or suspended and may
> not allow an outgoing device wake assert immediately if a client has
> requested for it. Ensure that the host wakes up and allows for it so
> the client does not have to wait for an external trigger or an
> outgoing packet to be queued for the host resume to occur.
>
> Signed-off-by: Bhaumik Bhatt <bbhatt@codeaurora.org>
Remove the term 'vote' from the commit subject, it doesn't seem right. How about
"Trigger host resume if already suspended during mhi_device_get()"? With that
fixed,
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Thanks,
Mani
> ---
> drivers/bus/mhi/core/pm.c | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/drivers/bus/mhi/core/pm.c b/drivers/bus/mhi/core/pm.c
> index 5e3994e..74c5cb1 100644
> --- a/drivers/bus/mhi/core/pm.c
> +++ b/drivers/bus/mhi/core/pm.c
> @@ -1115,6 +1115,9 @@ void mhi_device_get(struct mhi_device *mhi_dev)
>
> mhi_dev->dev_wake++;
> read_lock_bh(&mhi_cntrl->pm_lock);
> + if (MHI_PM_IN_SUSPEND_STATE(mhi_cntrl->pm_state))
> + mhi_trigger_resume(mhi_cntrl, false);
> +
> mhi_cntrl->wake_get(mhi_cntrl, true);
> read_unlock_bh(&mhi_cntrl->pm_lock);
> }
> --
> The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
> a Linux Foundation Collaborative Project
>
next prev parent reply other threads:[~2020-07-04 14:57 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-29 16:39 [PATCH v4 0/9] Introduce features and debugfs/sysfs entries for MHI Bhaumik Bhatt
2020-06-29 16:39 ` [PATCH v4 1/9] bus: mhi: core: Remove double occurrence for mhi_ctrl_ev_task() declaration Bhaumik Bhatt
2020-07-04 14:32 ` Manivannan Sadhasivam
2020-06-29 16:39 ` [PATCH v4 2/9] bus: mhi: core: Abort suspends due to outgoing pending packets Bhaumik Bhatt
2020-07-04 14:35 ` Manivannan Sadhasivam
2020-06-29 16:39 ` [PATCH v4 3/9] bus: mhi: core: Use helper API to trigger a non-blocking host resume Bhaumik Bhatt
2020-07-04 14:47 ` Manivannan Sadhasivam
2020-07-08 20:53 ` bbhatt
2020-07-16 6:08 ` Manivannan Sadhasivam
2020-06-29 16:39 ` [PATCH v4 4/9] bus: mhi: core: Trigger a host resume when device vote is requested Bhaumik Bhatt
2020-07-04 14:56 ` Manivannan Sadhasivam [this message]
2020-06-29 16:39 ` [PATCH v4 5/9] bus: mhi: core: Use generic name field for an MHI device Bhaumik Bhatt
2020-07-04 15:08 ` Manivannan Sadhasivam
2020-06-29 16:39 ` [PATCH v4 6/9] bus: mhi: core: Introduce helper function to check device state Bhaumik Bhatt
2020-07-04 15:13 ` Manivannan Sadhasivam
2020-06-29 16:39 ` [PATCH v4 7/9] bus: mhi: core: Introduce debugfs entries and counters for MHI Bhaumik Bhatt
2020-07-04 15:41 ` Manivannan Sadhasivam
2020-07-09 19:33 ` bbhatt
2020-07-16 5:01 ` Manivannan Sadhasivam
2020-06-29 16:39 ` [PATCH v4 8/9] bus: mhi: core: Read and save device hardware information from BHI Bhaumik Bhatt
2020-07-04 15:47 ` Manivannan Sadhasivam
2020-06-29 16:39 ` [PATCH v4 9/9] bus: mhi: core: Introduce sysfs entries for MHI Bhaumik Bhatt
2020-07-04 15:54 ` Manivannan Sadhasivam
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