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| author | Bjorn Andersson <bjorn.andersson@linaro.org> | 2020-04-22 17:37:34 -0700 |
|---|---|---|
| committer | Bjorn Andersson <bjorn.andersson@linaro.org> | 2020-05-07 11:04:18 -0700 |
| commit | 5d1f2e3c8090c0769ee4a1b920e82277613327fc (patch) | |
| tree | 43e1eb46291e6d8c240c4e7dbaf5e5da8efb7e43 /drivers/soc/qcom | |
| parent | cd9fc8f1b35bd75e0d33470a01baff2848a9443a (diff) | |
| download | lwn-5d1f2e3c8090c0769ee4a1b920e82277613327fc.tar.gz lwn-5d1f2e3c8090c0769ee4a1b920e82277613327fc.zip | |
soc: qcom: glink_ssr: Internalize ssr_notifiers
Rather than carrying a special purpose blocking notifier for glink_ssr
in remoteproc's qcom_common.c, move it into glink_ssr so allow wider
reuse of the common one.
The rpmsg glink header file is used in preparation for the next patch.
Acked-by: Chris Lew <clew@codeaurora.org>
Acked-by: Rishabh Bhatnagar <rishabhb@codeaurora.org>
Link: https://lore.kernel.org/r/20200423003736.2027371-3-bjorn.andersson@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Diffstat (limited to 'drivers/soc/qcom')
| -rw-r--r-- | drivers/soc/qcom/glink_ssr.c | 24 |
1 files changed, 19 insertions, 5 deletions
diff --git a/drivers/soc/qcom/glink_ssr.c b/drivers/soc/qcom/glink_ssr.c index d7babe3d67bc..847d79c935f1 100644 --- a/drivers/soc/qcom/glink_ssr.c +++ b/drivers/soc/qcom/glink_ssr.c @@ -54,6 +54,19 @@ struct glink_ssr { struct completion completion; }; +/* Notifier list for all registered glink_ssr instances */ +static BLOCKING_NOTIFIER_HEAD(ssr_notifiers); + +/** + * qcom_glink_ssr_notify() - notify GLINK SSR about stopped remoteproc + * @ssr_name: name of the remoteproc that has been stopped + */ +void qcom_glink_ssr_notify(const char *ssr_name) +{ + blocking_notifier_call_chain(&ssr_notifiers, 0, (void *)ssr_name); +} +EXPORT_SYMBOL_GPL(qcom_glink_ssr_notify); + static int qcom_glink_ssr_callback(struct rpmsg_device *rpdev, void *data, int len, void *priv, u32 addr) { @@ -81,8 +94,9 @@ static int qcom_glink_ssr_callback(struct rpmsg_device *rpdev, return 0; } -static int qcom_glink_ssr_notify(struct notifier_block *nb, unsigned long event, - void *data) +static int qcom_glink_ssr_notifier_call(struct notifier_block *nb, + unsigned long event, + void *data) { struct glink_ssr *ssr = container_of(nb, struct glink_ssr, nb); struct do_cleanup_msg msg; @@ -121,18 +135,18 @@ static int qcom_glink_ssr_probe(struct rpmsg_device *rpdev) ssr->dev = &rpdev->dev; ssr->ept = rpdev->ept; - ssr->nb.notifier_call = qcom_glink_ssr_notify; + ssr->nb.notifier_call = qcom_glink_ssr_notifier_call; dev_set_drvdata(&rpdev->dev, ssr); - return qcom_register_ssr_notifier(&ssr->nb); + return blocking_notifier_chain_register(&ssr_notifiers, &ssr->nb); } static void qcom_glink_ssr_remove(struct rpmsg_device *rpdev) { struct glink_ssr *ssr = dev_get_drvdata(&rpdev->dev); - qcom_unregister_ssr_notifier(&ssr->nb); + blocking_notifier_chain_unregister(&ssr_notifiers, &ssr->nb); } static const struct rpmsg_device_id qcom_glink_ssr_match[] = { |