From 6773cb33e7a7191ae7ae490af279596c91a828cc Mon Sep 17 00:00:00 2001 From: Anjelique Melendez Date: Fri, 19 Sep 2025 10:50:25 -0700 Subject: [PATCH] soc: qcom: pmic_glink: Add support for SOCCP remoteproc channels System On Chip Control Processor (SOCCP) is a subsystem that can have battery management firmware running on it to support Type-C/PD and battery charging. SOCCP does not have multiple PDs and hence PDR is not supported. So, if the subsystem comes up/down, rpmsg driver would be probed or removed. Use that for notifying clients of pmic_glink for PDR events. Add support for battery management FW running on SOCCP by adding the "PMIC_RTR_SOCCP_APPS" channel name to the rpmsg_match list and updating notify_clients logic. Signed-off-by: Anjelique Melendez Link: https://lore.kernel.org/r/20250919175025.2988948-1-anjelique.melendez@oss.qualcomm.com Signed-off-by: Bjorn Andersson --- drivers/soc/qcom/pmic_glink.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/drivers/soc/qcom/pmic_glink.c b/drivers/soc/qcom/pmic_glink.c index c0a4be5df9267..627f96ca322e1 100644 --- a/drivers/soc/qcom/pmic_glink.c +++ b/drivers/soc/qcom/pmic_glink.c @@ -39,6 +39,7 @@ struct pmic_glink { struct mutex state_lock; unsigned int client_state; unsigned int pdr_state; + bool pdr_available; /* serializing clients list updates */ spinlock_t client_lock; @@ -246,9 +247,12 @@ static int pmic_glink_rpmsg_probe(struct rpmsg_device *rpdev) return dev_err_probe(&rpdev->dev, -ENODEV, "no pmic_glink device to attach to\n"); dev_set_drvdata(&rpdev->dev, pg); + pg->pdr_available = rpdev->id.driver_data; guard(mutex)(&pg->state_lock); pg->ept = rpdev->ept; + if (!pg->pdr_available) + pg->pdr_state = SERVREG_SERVICE_STATE_UP; pmic_glink_state_notify_clients(pg); return 0; @@ -265,11 +269,14 @@ static void pmic_glink_rpmsg_remove(struct rpmsg_device *rpdev) guard(mutex)(&pg->state_lock); pg->ept = NULL; + if (!pg->pdr_available) + pg->pdr_state = SERVREG_SERVICE_STATE_DOWN; pmic_glink_state_notify_clients(pg); } static const struct rpmsg_device_id pmic_glink_rpmsg_id_match[] = { - { "PMIC_RTR_ADSP_APPS" }, + {.name = "PMIC_RTR_ADSP_APPS", .driver_data = true }, + {.name = "PMIC_RTR_SOCCP_APPS", .driver_data = false }, {} }; -- 2.47.3