Bluetooth: btmtksdio: Add pmctrl handling for BT closed state during reset

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[ Upstream commit 77343b8b4f ]

This patch adds logic to handle power management control when the
Bluetooth function is closed during the SDIO reset sequence.

Specifically, if BT is closed before reset, the driver enables the
SDIO function and sets driver pmctrl. After reset, if BT remains
closed, the driver sets firmware pmctrl and disables the SDIO function.

These changes ensure proper power management and device state consistency
across the reset flow.

Fixes: 8fafe70225 ("Bluetooth: mt7921s: support bluetooth reset mechanism")
Signed-off-by: Chris Lu <chris.lu@mediatek.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Chris Lu 2025-09-30 13:39:33 +08:00 • committed by Greg Kroah-Hartman

parent fd25c5bb96

commit cd7a128032

1 changed files with 12 additions and 0 deletions

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drivers/bluetooth/btmtksdio.c

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