From: Dmitry Baryshkov dmitry.baryshkov@linaro.org
stable inclusion from stable-v6.6.33 commit 8fc7934635bb780d0fbc43455a6a9ad2bbb06cde category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/IAD6H2
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=...
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[ Upstream commit d6cbce2cd354c9a37a558f290a8f1dfd20584f99 ]
In case the client is registered after the pmic-glink recived a response from the Protection Domain mapper, it is going to miss the notification about the state. Notify clients about the current state upon registration.
Fixes: 58ef4ece1e41 ("soc: qcom: pmic_glink: Introduce base PMIC GLINK driver") Reviewed-by: Andrew Halaney ahalaney@redhat.com Signed-off-by: Dmitry Baryshkov dmitry.baryshkov@linaro.org Reviewed-by: Mukesh Ojha quic_mojha@quicinc.com Tested-by: Xilin Wu wuxilin123@gmail.com # on QCS8550 AYN Odin 2 Link: https://lore.kernel.org/r/20240403-pmic-glink-fix-clients-v2-2-aed4e02baacc@... Signed-off-by: Bjorn Andersson andersson@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org Signed-off-by: Wang Hai wanghai38@huawei.com --- drivers/soc/qcom/pmic_glink.c | 5 +++++ 1 file changed, 5 insertions(+)
diff --git a/drivers/soc/qcom/pmic_glink.c b/drivers/soc/qcom/pmic_glink.c index c6dca5278e61..062ff7b12de6 100644 --- a/drivers/soc/qcom/pmic_glink.c +++ b/drivers/soc/qcom/pmic_glink.c @@ -86,9 +86,14 @@ struct pmic_glink_client *devm_pmic_glink_register_client(struct device *dev, client->pdr_notify = pdr; client->priv = priv;
+ mutex_lock(&pg->state_lock); mutex_lock(&pg->client_lock); + list_add(&client->node, &pg->clients); + client->pdr_notify(client->priv, pg->client_state); + mutex_unlock(&pg->client_lock); + mutex_unlock(&pg->state_lock);
devres_add(dev, client);