6.6-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 c6dca5278e61b..062ff7b12de6a 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);
--
2.43.0
