diff options
| author | Bjorn Andersson <bjorn.andersson@linaro.org> | 2019-11-13 15:35:58 -0800 |
|---|---|---|
| committer | Bjorn Andersson <bjorn.andersson@linaro.org> | 2019-11-13 15:54:19 -0800 |
| commit | 3082acd2bc0163c62bf5ebfe100e220d1b999a7e (patch) | |
| tree | 40463fe56c615edb79d684382dfddac50aa4d98c | |
| parent | 82d49f2c5b1996992050bc4030f71ae298563d06 (diff) | |
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>
Link: https://lore.kernel.org/r/20191113233558.4040259-1-bjorn.andersson@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
| -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 a824fb4d560e..c360e8c6bb61 100644 --- a/drivers/net/wireless/ath/ath10k/qmi.c +++ b/drivers/net/wireless/ath/ath10k/qmi.c @@ -700,6 +700,13 @@ 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; |