linux-kernel - [PATCH v1 0/3] Trigger reset if firmware status is abnormal when

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Message-ID: <20260203062510.848761-1-chris.lu@mediatek.com>
Date: Tue, 3 Feb 2026 14:25:07 +0800
From: Chris Lu <chris.lu@...iatek.com>
To: Marcel Holtmann <marcel@...tmann.org>, Johan Hedberg
	<johan.hedberg@...il.com>, Luiz Von Dentz <luiz.dentz@...il.com>
CC: Sean Wang <sean.wang@...iatek.com>, Will Lee <will-cy.Lee@...iatek.com>,
	SS Wu <ss.wu@...iatek.com>, Steve Lee <steve.lee@...iatek.com>,
	linux-bluetooth <linux-bluetooth@...r.kernel.org>, linux-kernel
	<linux-kernel@...r.kernel.org>, linux-mediatek
	<linux-mediatek@...ts.infradead.org>, Chris Lu <chris.lu@...iatek.com>
Subject: [PATCH v1 0/3] Trigger reset if firmware status is abnormal when

When the device unexpectedly restarts during previous firmware
download process, it can cause mt79xx firmware status to be
abnormal in the next attempt. In this case, a reset should be
performed to ensure everything starts afresh.

These changes include:
1. Optimizing the handling after the download function retry
   is exhausted, a reset should be performed.
2. Another download firmware command also needs to check status
   , and if an unexpected status occurs, trigger a reset.
3. Adding a flag "BTMTK_FIRMWARE_DL_RETRY": if download firmware
   process enters the reset mechanism, this flag will be set.
   After a successful setup, the flag will be cleared.
   If the flag is already set, no further reset attempts will be
   made to avoid endless reset retries.

Chris Lu (3):
  Bluetooth: btmtk: improve mt79xx firmware setup retry flow
  Bluetooth: btmtk: add status check in  mt79xx firmware setup
  Bluetooth: btmtk: Add reset mechanism if downloading firmware failed

 drivers/bluetooth/btmtk.c | 21 +++++++++++++++++++--
 drivers/bluetooth/btmtk.h |  1 +
 2 files changed, 20 insertions(+), 2 deletions(-)

-- 
2.45.2