From: Hedi Ben Hamida <hedihamida096@gmail.com>
To: Felix Fietkau <nbd@nbd.name>, Lorenzo Bianconi <lorenzo@kernel.org>
Cc: Ryder Lee <ryder.lee@mediatek.com>,
Shayne Chen <shayne.chen@mediatek.com>,
Sean Wang <sean.wang@mediatek.com>,
linux-wireless@vger.kernel.org,
linux-mediatek@lists.infradead.org, stable@vger.kernel.org,
Hedi Ben Hamida <hedihamida096@gmail.com>
Subject: [PATCH v2 0/2] wifi: mt76: mt7921: fix hibernate and suspend resume
Date: Sat, 24 Oct 2026 09:16:51 -0400 [thread overview]
Message-ID: <20261024131715.64435-1-hedihamida096@gmail.com> (raw)
This series fixes two MT7921/MT7922 power-management resume paths.
Patch 1 adds a dedicated .restore callback for hibernate. Without it the
S4 restore path runs the normal resume sequence and times out waiting for
the HIF suspend MCU handshake.
Patch 2 recovers from the same HIF resume timeout on S3: the firmware does
not return the HIF_CTRL response after D3, so reset the device and report
success instead of failing the resume.
Both were tested on MEDIATEK MT7922 (14c3:7922) on kernel 6.12.113.
v2: add the suspend resume fix; patch 1 is unchanged.
Hedi Ben Hamida (2):
wifi: mt76: mt7921: add pci restore for hibernate
wifi: mt76: mt7921: reset on HIF resume timeout
.../net/wireless/mediatek/mt76/mt7921/pci.c | 34 +++++++++++++++++--
1 file changed, 31 insertions(+), 3 deletions(-)
--
2.47.3
next reply other threads:[~2026-10-24 13:18 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-24 13:16 Hedi Ben Hamida [this message]
2026-10-24 13:16 ` [PATCH v2 1/2] wifi: mt76: mt7921: add pci restore for hibernate Hedi Ben Hamida
2026-10-24 13:16 ` [PATCH v2 2/2] wifi: mt76: mt7921: reset on HIF resume timeout Hedi Ben Hamida
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