soc: qcom: pmic_glink: notify clients about the current state

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@linaro.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>

diff --git a/drivers/soc/qcom/pmic_glink.c b/drivers/soc/qcom/pmic_glink.c
index 2b2cdf4796542e6e7fc4cf10af3d11be0106aa47..e85a12ec2aab18d05b908efd761d3c5632e2bc1f 100644 (file)
--- 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);