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 v3 4/7] bus: mhi: core: Introduce helper function to check device state
Date: Mon, 18 May 2020 13:03:58 -0700 [thread overview]
Message-ID: <1589832241-13867-5-git-send-email-bbhatt@codeaurora.org> (raw)
In-Reply-To: <1589832241-13867-1-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 in reading debugfs entries.
Signed-off-by: Bhaumik Bhatt <bbhatt@codeaurora.org>
Reviewed-by: Jeffrey Hugo <jhugo@codeaurora.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 b1f640b..2f18be7 100644
--- a/drivers/bus/mhi/core/internal.h
+++ b/drivers/bus/mhi/core/internal.h
@@ -599,6 +599,11 @@ int mhi_queue_state_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);
+}
/* Register access methods */
void mhi_db_brstmode(struct mhi_controller *mhi_cntrl, struct db_cfg *db_cfg,
--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project
next prev parent reply other threads:[~2020-05-18 20:04 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-18 20:03 [PATCH v3 0/7] Introduce features and debugfs/sysfs entries for MHI Bhaumik Bhatt
2020-05-18 20:03 ` [PATCH v3 1/7] bus: mhi: core: Abort suspends due to outgoing pending packets Bhaumik Bhatt
2020-05-20 16:48 ` Jeffrey Hugo
2020-05-18 20:03 ` [PATCH v3 2/7] bus: mhi: core: Introduce independent voting mechanism Bhaumik Bhatt
2020-05-20 16:54 ` Jeffrey Hugo
2020-05-20 18:43 ` bbhatt
2020-05-20 19:06 ` Jeffrey Hugo
2020-05-20 19:44 ` bbhatt
2020-05-20 20:41 ` Jeffrey Hugo
2020-05-18 20:03 ` [PATCH v3 3/7] bus: mhi: core: Use generic name field for an MHI device Bhaumik Bhatt
2020-05-18 20:03 ` Bhaumik Bhatt [this message]
2020-05-18 20:03 ` [PATCH v3 5/7] bus: mhi: core: Introduce debugfs entries and counters for MHI Bhaumik Bhatt
2020-05-25 6:35 ` Greg KH
2020-05-18 20:04 ` [PATCH v3 6/7] bus: mhi: core: Read and save device hardware information from BHI Bhaumik Bhatt
2020-05-18 20:04 ` [PATCH v3 7/7] bus: mhi: core: Introduce sysfs entries for MHI Bhaumik Bhatt
2020-05-21 13:23 ` [PATCH v3 0/7] Introduce features and debugfs/sysfs " Manivannan Sadhasivam
2020-05-21 15:32 ` Manivannan Sadhasivam
2020-05-21 19:33 ` bbhatt
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