From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
stable@vger.kernel.org, Marek Vasut <marex@denx.de>,
Amitkumar Karwar <amit.karwar@redpinesignals.com>,
Angus Ainslie <angus@akkea.ca>,
"David S. Miller" <davem@davemloft.net>,
Jakub Kicinski <kuba@kernel.org>,
Kalle Valo <kvalo@codeaurora.org>,
Karun Eagalapati <karun256@gmail.com>,
Martin Kepplinger <martink@posteo.de>,
Sebastian Krzyszkowiak <sebastian.krzyszkowiak@puri.sm>,
Siva Rebbagondla <siva8118@gmail.com>,
netdev@vger.kernel.org
Subject: [PATCH 4.19 113/425] rsi: Use resume_noirq for SDIO
Date: Thu, 20 May 2021 11:18:02 +0200 [thread overview]
Message-ID: <20210520092135.161796297@linuxfoundation.org> (raw)
In-Reply-To: <20210520092131.308959589@linuxfoundation.org>
From: Marek Vasut <marex@denx.de>
commit c434e5e48dc4e626364491455f97e2db0aa137b1 upstream.
The rsi_resume() does access the bus to enable interrupts on the RSI
SDIO WiFi card, however when calling sdio_claim_host() in the resume
path, it is possible the bus is already claimed and sdio_claim_host()
spins indefinitelly. Enable the SDIO card interrupts in resume_noirq
instead to prevent anything else from claiming the SDIO bus first.
Fixes: 20db07332736 ("rsi: sdio suspend and resume support")
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Cc: Angus Ainslie <angus@akkea.ca>
Cc: David S. Miller <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: Karun Eagalapati <karun256@gmail.com>
Cc: Martin Kepplinger <martink@posteo.de>
Cc: Sebastian Krzyszkowiak <sebastian.krzyszkowiak@puri.sm>
Cc: Siva Rebbagondla <siva8118@gmail.com>
Cc: netdev@vger.kernel.org
Cc: stable@vger.kernel.org
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210327235932.175896-1-marex@denx.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/net/wireless/rsi/rsi_91x_sdio.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/net/wireless/rsi/rsi_91x_sdio.c
+++ b/drivers/net/wireless/rsi/rsi_91x_sdio.c
@@ -1400,7 +1400,7 @@ static int rsi_restore(struct device *de
}
static const struct dev_pm_ops rsi_pm_ops = {
.suspend = rsi_suspend,
- .resume = rsi_resume,
+ .resume_noirq = rsi_resume,
.freeze = rsi_freeze,
.thaw = rsi_thaw,
.restore = rsi_restore,
parent reply other threads:[~2021-05-20 9:48 UTC|newest]
Thread overview: expand[flat|nested] mbox.gz Atom feed
[parent not found: <20210520092131.308959589@linuxfoundation.org>]
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