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67 lines
2.4 KiB
Diff
67 lines
2.4 KiB
Diff
From a32de68edab7b73ded850bcf76cdf6858e92a7e5 Mon Sep 17 00:00:00 2001
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From: Dmitry Osipenko <digetx@gmail.com>
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Date: Sun, 15 Dec 2019 21:42:24 +0300
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Subject: [PATCH] brcmfmac: Keep OOB wake-interrupt disabled when it shouldn't
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be enabled
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NVIDIA Tegra SoCs do not like when OOB wake is enabled and WiFi interface
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is in DOWN state during suspend. This results in a CPU hang on programming
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OOB wake-up state of the GPIO controller during of system's suspend.
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The solution is trivial: don't enable wake for the OOB interrupt when it
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should be disabled.
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This fixes hang on Tegra20 (Acer A500) and Tegra30 (Nexus 7) devices which
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are using BCM4329 and BCM4330 WiFi chips respectively.
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Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
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Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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---
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.../net/wireless/broadcom/brcm80211/brcmfmac/bcmsdh.c | 10 +++++-----
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.../net/wireless/broadcom/brcm80211/brcmfmac/sdio.h | 1 -
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2 files changed, 5 insertions(+), 6 deletions(-)
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--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcmsdh.c
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+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcmsdh.c
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@@ -120,7 +120,7 @@ int brcmf_sdiod_intr_register(struct brc
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brcmf_err("enable_irq_wake failed %d\n", ret);
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return ret;
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}
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- sdiodev->irq_wake = true;
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+ disable_irq_wake(pdata->oob_irq_nr);
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sdio_claim_host(sdiodev->func1);
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@@ -179,10 +179,6 @@ void brcmf_sdiod_intr_unregister(struct
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sdio_release_host(sdiodev->func1);
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sdiodev->oob_irq_requested = false;
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- if (sdiodev->irq_wake) {
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- disable_irq_wake(pdata->oob_irq_nr);
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- sdiodev->irq_wake = false;
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- }
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free_irq(pdata->oob_irq_nr, &sdiodev->func1->dev);
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sdiodev->irq_en = false;
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sdiodev->oob_irq_requested = false;
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@@ -1173,6 +1169,10 @@ static int brcmf_ops_sdio_resume(struct
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if (ret)
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brcmf_err("Failed to probe device on resume\n");
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} else {
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+ if (sdiodev->wowl_enabled &&
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+ sdiodev->settings->bus.sdio.oob_irq_supported)
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+ disable_irq_wake(sdiodev->settings->bus.sdio.oob_irq_nr);
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+
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brcmf_sdiod_freezer_off(sdiodev);
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}
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--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.h
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+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.h
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@@ -178,7 +178,6 @@ struct brcmf_sdio_dev {
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bool sd_irq_requested;
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bool irq_en; /* irq enable flags */
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spinlock_t irq_en_lock;
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- bool irq_wake; /* irq wake enable flags */
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bool sg_support;
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uint max_request_size;
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ushort max_segment_count;
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