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62495d7784
The SSR subdevice only adds callback for the unprepare event. Add callbacks for prepare, start and prepare events. The client driver for a particular remoteproc might be interested in knowing the status of the remoteproc while undergoing SSR, not just when the remoteproc has finished shutting down. Reviewed-by: Alex Elder <elder@linaro.org> Signed-off-by: Siddharth Gupta <sidgup@codeaurora.org> Signed-off-by: Rishabh Bhatnagar <rishabhb@codeaurora.org> Link: https://lore.kernel.org/r/1592965408-16908-3-git-send-email-rishabhb@codeaurora.org Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
48 lines
1.1 KiB
C
48 lines
1.1 KiB
C
#ifndef __QCOM_RPROC_H__
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#define __QCOM_RPROC_H__
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struct notifier_block;
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#if IS_ENABLED(CONFIG_QCOM_RPROC_COMMON)
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/**
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* enum qcom_ssr_notify_type - Startup/Shutdown events related to a remoteproc
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* processor.
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*
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* @QCOM_SSR_BEFORE_POWERUP: Remoteproc about to start (prepare stage)
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* @QCOM_SSR_AFTER_POWERUP: Remoteproc is running (start stage)
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* @QCOM_SSR_BEFORE_SHUTDOWN: Remoteproc crashed or shutting down (stop stage)
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* @QCOM_SSR_AFTER_SHUTDOWN: Remoteproc is down (unprepare stage)
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*/
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enum qcom_ssr_notify_type {
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QCOM_SSR_BEFORE_POWERUP,
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QCOM_SSR_AFTER_POWERUP,
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QCOM_SSR_BEFORE_SHUTDOWN,
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QCOM_SSR_AFTER_SHUTDOWN,
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};
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struct qcom_ssr_notify_data {
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const char *name;
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bool crashed;
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};
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void *qcom_register_ssr_notifier(const char *name, struct notifier_block *nb);
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int qcom_unregister_ssr_notifier(void *notify, struct notifier_block *nb);
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#else
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static inline void *qcom_register_ssr_notifier(const char *name,
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struct notifier_block *nb)
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{
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return NULL;
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}
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static inline int qcom_unregister_ssr_notifier(void *notify,
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struct notifier_block *nb)
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{
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return 0;
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}
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#endif
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#endif
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