diff mbox series

[v1] brcmfmac: Keep OOB wake-interrupt disabled when it shouldn't be enabled

Message ID 20191215184224.11827-1-digetx@gmail.com (mailing list archive)
State Accepted
Commit a32de68edab7b73ded850bcf76cdf6858e92a7e5
Delegated to: Kalle Valo
Headers show
Series [v1] brcmfmac: Keep OOB wake-interrupt disabled when it shouldn't be enabled | expand

Commit Message

Dmitry Osipenko Dec. 15, 2019, 6:42 p.m. UTC
NVIDIA Tegra SoCs do not like when OOB wake is enabled and WiFi interface
is in DOWN state during suspend. This results in a CPU hang on programming
OOB wake-up state of the GPIO controller during of system's suspend.

The solution is trivial: don't enable wake for the OOB interrupt when it
should be disabled.

This fixes hang on Tegra20 (Acer A500) and Tegra30 (Nexus 7) devices which
are using BCM4329 and BCM4330 WiFi chips respectively.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
---
 .../net/wireless/broadcom/brcm80211/brcmfmac/bcmsdh.c  | 10 +++++-----
 .../net/wireless/broadcom/brcm80211/brcmfmac/sdio.h    |  1 -
 2 files changed, 5 insertions(+), 6 deletions(-)

Comments

Kalle Valo Dec. 18, 2019, 7:09 p.m. UTC | #1
Dmitry Osipenko <digetx@gmail.com> wrote:

> NVIDIA Tegra SoCs do not like when OOB wake is enabled and WiFi interface
> is in DOWN state during suspend. This results in a CPU hang on programming
> OOB wake-up state of the GPIO controller during of system's suspend.
> 
> The solution is trivial: don't enable wake for the OOB interrupt when it
> should be disabled.
> 
> This fixes hang on Tegra20 (Acer A500) and Tegra30 (Nexus 7) devices which
> are using BCM4329 and BCM4330 WiFi chips respectively.
> 
> Signed-off-by: Dmitry Osipenko <digetx@gmail.com>

Patch applied to wireless-drivers-next.git, thanks.

a32de68edab7 brcmfmac: Keep OOB wake-interrupt disabled when it shouldn't be enabled
Dmitry Osipenko Dec. 18, 2019, 7:11 p.m. UTC | #2
18.12.2019 22:09, Kalle Valo пишет:
> Dmitry Osipenko <digetx@gmail.com> wrote:
> 
>> NVIDIA Tegra SoCs do not like when OOB wake is enabled and WiFi interface
>> is in DOWN state during suspend. This results in a CPU hang on programming
>> OOB wake-up state of the GPIO controller during of system's suspend.
>>
>> The solution is trivial: don't enable wake for the OOB interrupt when it
>> should be disabled.
>>
>> This fixes hang on Tegra20 (Acer A500) and Tegra30 (Nexus 7) devices which
>> are using BCM4329 and BCM4330 WiFi chips respectively.
>>
>> Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
> 
> Patch applied to wireless-drivers-next.git, thanks.
> 
> a32de68edab7 brcmfmac: Keep OOB wake-interrupt disabled when it shouldn't be enabled
> 

Thank you very much!
diff mbox series

Patch

diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcmsdh.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcmsdh.c
index 96fd8e2bf773..b5088379b595 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcmsdh.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcmsdh.c
@@ -119,7 +119,7 @@  int brcmf_sdiod_intr_register(struct brcmf_sdio_dev *sdiodev)
 			brcmf_err("enable_irq_wake failed %d\n", ret);
 			return ret;
 		}
-		sdiodev->irq_wake = true;
+		disable_irq_wake(pdata->oob_irq_nr);
 
 		sdio_claim_host(sdiodev->func1);
 
@@ -178,10 +178,6 @@  void brcmf_sdiod_intr_unregister(struct brcmf_sdio_dev *sdiodev)
 		sdio_release_host(sdiodev->func1);
 
 		sdiodev->oob_irq_requested = false;
-		if (sdiodev->irq_wake) {
-			disable_irq_wake(pdata->oob_irq_nr);
-			sdiodev->irq_wake = false;
-		}
 		free_irq(pdata->oob_irq_nr, &sdiodev->func1->dev);
 		sdiodev->irq_en = false;
 		sdiodev->oob_irq_requested = false;
@@ -1167,6 +1163,10 @@  static int brcmf_ops_sdio_resume(struct device *dev)
 		if (ret)
 			brcmf_err("Failed to probe device on resume\n");
 	} else {
+		if (sdiodev->wowl_enabled &&
+		    sdiodev->settings->bus.sdio.oob_irq_supported)
+			disable_irq_wake(sdiodev->settings->bus.sdio.oob_irq_nr);
+
 		brcmf_sdiod_freezer_off(sdiodev);
 	}
 
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.h b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.h
index 0bd47c119dae..163fd664780a 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.h
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.h
@@ -178,7 +178,6 @@  struct brcmf_sdio_dev {
 	bool sd_irq_requested;
 	bool irq_en;			/* irq enable flags */
 	spinlock_t irq_en_lock;
-	bool irq_wake;			/* irq wake enable flags */
 	bool sg_support;
 	uint max_request_size;
 	ushort max_segment_count;