6.9-stable review patch. If anyone has any objections, please let me know. ------------------ From: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx> [ 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@xxxxxxxxxx> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx> Reviewed-by: Mukesh Ojha <quic_mojha@xxxxxxxxxxx> Tested-by: Xilin Wu <wuxilin123@xxxxxxxxx> # on QCS8550 AYN Odin 2 Link: https://lore.kernel.org/r/20240403-pmic-glink-fix-clients-v2-2-aed4e02baacc@xxxxxxxxxx Signed-off-by: Bjorn Andersson <andersson@xxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> --- 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 2b2cdf4796542..e85a12ec2aab1 100644 --- a/drivers/soc/qcom/pmic_glink.c +++ b/drivers/soc/qcom/pmic_glink.c @@ -83,9 +83,14 @@ 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); -- 2.43.0