From 8b7c6e1cb2cb1d4e2ee94556695d80dde6ccdcc6 Mon Sep 17 00:00:00 2001
From: Sean Wang <sean.wang@mediatek.com>
Date: Fri, 14 Aug 2020 05:49:47 +0800
Subject: [PATCH] mt76: mt7663s: fix resume failure
Git-commit: 8b7c6e1cb2cb1d4e2ee94556695d80dde6ccdcc6
Patch-mainline: v5.10-rc1
References: git-fixes
MT7663s have to rely on MMC_PM_KEEP_POWER in pm_flags for to avoid SDIO
power is being shut off.
To fix sdio access failure like "mt7663s mmc1:0001:1: sdio write failed:
-22" for the first sdio command to access the bus in the resume handler.
Fixes: a66cbdd6573d ("mt76: mt7615: introduce mt7663s support")
Co-developed-by: YN Chen <YN.Chen@mediatek.com>
Signed-off-by: YN Chen <YN.Chen@mediatek.com>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/net/wireless/mediatek/mt76/mt7615/sdio.c | 2 ++
1 file changed, 2 insertions(+)
--- a/drivers/net/wireless/mediatek/mt76/mt7615/sdio.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/sdio.c
@@ -426,6 +426,8 @@ static int mt7663s_suspend(struct device
return err;
}
+ sdio_set_host_pm_flags(func, MMC_PM_KEEP_POWER);
+
mt76s_stop_txrx(&mdev->mt76);
return mt7663s_firmware_own(mdev);