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Bluetooth: btmtksdio: fix resume failure

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[ Upstream commit 561ae1d46a8ddcbc13162d5771f5ed6c8249e730 ]

btmtksdio have to rely on MMC_PM_KEEP_POWER in pm_flags to avoid that
SDIO power is being shut off during the device is in suspend. That fixes
the SDIO command fails to access the bus after the device is resumed.

Fixes: 7f3c563c57 ("Bluetooth: btmtksdio: Add runtime PM support to SDIO based Bluetooth")
Co-developed-by: Mark-yw Chen <mark-yw.chen@mediatek.com>
Signed-off-by: Mark-yw Chen <mark-yw.chen@mediatek.com>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Sean Wang
2022-01-27 12:01:39 +01:00
committed by Greg Kroah-Hartman
parent 103ad61f47
commit a9b792ab37
1 changed files with 2 additions and 0 deletions
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drivers/bluetooth/btmtksdio.c
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@@ -1042,6 +1042,8 @@ static int btmtksdio_runtime_suspend(struct device *dev)
if (!bdev)
return 0;
sdio_set_host_pm_flags(func, MMC_PM_KEEP_POWER);
sdio_claim_host(bdev->func);
sdio_writel(bdev->func, C_FW_OWN_REQ_SET, MTK_REG_CHLPCR, &err);