linux-kernel - [PATCH 5.15 014/262] HID: amd_sfh: Handle amd

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Message-Id: <20220307091702.779646657@linuxfoundation.org>
Date:   Mon,  7 Mar 2022 10:15:58 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Basavaraj Natikar <Basavaraj.Natikar@....com>,
        Jiri Kosina <jkosina@...e.cz>, Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.15 014/262] HID: amd_sfh: Handle amd_sfh work buffer in PM ops

From: Basavaraj Natikar <Basavaraj.Natikar@....com>

[ Upstream commit 0cf74235f4403b760a37f77271d2ca3424001ff9 ]

Since in the current amd_sfh design the sensor data is periodically
obtained in the form of poll data, during the suspend/resume cycle,
scheduling a delayed work adds no value.

So, cancel the work and restart back during the suspend/resume cycle
respectively.

Signed-off-by: Basavaraj Natikar <Basavaraj.Natikar@....com>
Signed-off-by: Jiri Kosina <jkosina@...e.cz>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/hid/amd-sfh-hid/amd_sfh_pcie.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/hid/amd-sfh-hid/amd_sfh_pcie.c b/drivers/hid/amd-sfh-hid/amd_sfh_pcie.c
index f7a4eaf3a2e07..4198a8a786c8a 100644
--- a/drivers/hid/amd-sfh-hid/amd_sfh_pcie.c
+++ b/drivers/hid/amd-sfh-hid/amd_sfh_pcie.c
@@ -287,6 +287,8 @@ static int __maybe_unused amd_mp2_pci_resume(struct device *dev)
 		}
 	}
 
+	schedule_delayed_work(&cl_data->work_buffer, msecs_to_jiffies(AMD_SFH_IDLE_LOOP));
+
 	return 0;
 }
 
@@ -310,6 +312,8 @@ static int __maybe_unused amd_mp2_pci_suspend(struct device *dev)
 		}
 	}
 
+	cancel_delayed_work_sync(&cl_data->work_buffer);
+
 	return 0;
 }
 
-- 
2.34.1