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Date: Thu, 20 Aug 2020 11:19:19 +0200 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-kernel@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, stable@...r.kernel.org, Evan Green <evgreen@...omium.org>, Sibi Sankar <sibis@...eaurora.org>, Bjorn Andersson <bjorn.andersson@...aro.org> Subject: [PATCH 5.8 108/232] remoteproc: qcom: q6v5: Update running state before requesting stop From: Sibi Sankar <sibis@...eaurora.org> commit 5b7be880074c73540948f8fc597e0407b98fabfa upstream. Sometimes the stop triggers a watchdog rather than a stop-ack. Update the running state to false on requesting stop to skip the watchdog instead. Error Logs: $ echo stop > /sys/class/remoteproc/remoteproc0/state ipa 1e40000.ipa: received modem stopping event remoteproc-modem: watchdog received: sys_m_smsm_mpss.c:291:APPS force stop qcom-q6v5-mss 4080000.remoteproc-modem: port failed halt ipa 1e40000.ipa: received modem offline event remoteproc0: stopped remote processor 4080000.remoteproc-modem Reviewed-by: Evan Green <evgreen@...omium.org> Fixes: 3b415c8fb263 ("remoteproc: q6v5: Extract common resource handling") Cc: stable@...r.kernel.org Signed-off-by: Sibi Sankar <sibis@...eaurora.org> Link: https://lore.kernel.org/r/20200602163257.26978-1-sibis@codeaurora.org Signed-off-by: Bjorn Andersson <bjorn.andersson@...aro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org> --- drivers/remoteproc/qcom_q6v5.c | 2 ++ 1 file changed, 2 insertions(+) --- a/drivers/remoteproc/qcom_q6v5.c +++ b/drivers/remoteproc/qcom_q6v5.c @@ -153,6 +153,8 @@ int qcom_q6v5_request_stop(struct qcom_q { int ret; + q6v5->running = false; + qcom_smem_state_update_bits(q6v5->state, BIT(q6v5->stop_bit), BIT(q6v5->stop_bit));
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