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remoteproc: qcom: Add notification types to SSR

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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>
This commit is contained in:
Rishabh Bhatnagar
2020-06-23 19:23:28 -07:00
committed by Bjorn Andersson
parent 5abfe5cf0b
commit 62495d7784
2 changed files with 59 additions and 1 deletions
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16
include/linux/remoteproc/qcom_rproc.h
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@@ -5,6 +5,22 @@ struct notifier_block;
#if IS_ENABLED(CONFIG_QCOM_RPROC_COMMON)
/**
* enum qcom_ssr_notify_type - Startup/Shutdown events related to a remoteproc
* processor.
*
* @QCOM_SSR_BEFORE_POWERUP: Remoteproc about to start (prepare stage)
* @QCOM_SSR_AFTER_POWERUP: Remoteproc is running (start stage)
* @QCOM_SSR_BEFORE_SHUTDOWN: Remoteproc crashed or shutting down (stop stage)
* @QCOM_SSR_AFTER_SHUTDOWN: Remoteproc is down (unprepare stage)
*/
enum qcom_ssr_notify_type {
QCOM_SSR_BEFORE_POWERUP,
QCOM_SSR_AFTER_POWERUP,
QCOM_SSR_BEFORE_SHUTDOWN,
QCOM_SSR_AFTER_SHUTDOWN,
};
struct qcom_ssr_notify_data {
const char *name;
bool crashed;