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| author |   Bjorn Andersson <bjorn.andersson@linaro.org> | 2019-11-13 15:35:58 -0800 |
|---|---|---|
| committer |   Kalle Valo <kvalo@codeaurora.org> | 2019-11-15 08:58:33 +0200 |
| commit | b70b3a36ec33a2c8d3292f3b33fe2047a8f57b9a (patch) | |
| tree | 925e43e46ffcb42119fb8cda558e2aed28323817 /drivers/net/wireless/ath/ath10k | |
| parent | ath10k: Revert "ath10k: add cleanup in ath10k_sta_state()" (diff) | |
| download | linux-dev-b70b3a36ec33a2c8d3292f3b33fe2047a8f57b9a.tar.xz linux-dev-b70b3a36ec33a2c8d3292f3b33fe2047a8f57b9a.zip | |
ath10k: qmi: Sleep for a while before assigning MSA memory
Unless we sleep for a while before transitioning the MSA memory to WLAN
the MPSS.AT.4.0.c2-01184-SDM845_GEN_PACK-1 firmware triggers a security
violation fairly reliably. Unforutnately recovering from this failure
always results in the entire system freezing.
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Diffstat (limited to 'drivers/net/wireless/ath/ath10k')
| -rw-r--r-- | drivers/net/wireless/ath/ath10k/qmi.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath10k/qmi.c b/drivers/net/wireless/ath/ath10k/qmi.c index 637f83ef65f8..a0ba07b85362 100644 --- a/drivers/net/wireless/ath/ath10k/qmi.c +++ b/drivers/net/wireless/ath/ath10k/qmi.c @@ -773,6 +773,13 @@ static void ath10k_qmi_event_server_arrive(struct ath10k_qmi *qmi) if (ret) return; + /* + * HACK: sleep for a while inbetween receiving the msa info response + * and the XPU update to prevent SDM845 from crashing due to a security + * violation, when running MPSS.AT.4.0.c2-01184-SDM845_GEN_PACK-1. + */ + msleep(20); + ret = ath10k_qmi_setup_msa_permissions(qmi); if (ret) return; |