From: Sudeep Holla sudeep.holla@arm.com
[ Upstream commit 5a2f0a0bdf201e2183904b6217f9c74774c961a8 ]
In preparation to enable building scmi as a single module, let us move the scmi bus {de-,}initialisation call into the driver.
The main reason for this is to keep it simple instead of maintaining it as separate modules and dealing with all possible initcall races and deferred probe handling. We can move it as separate modules if needed in future.
Link: https://lore.kernel.org/r/20200907195046.56615-3-sudeep.holla@arm.com Tested-by: Cristian Marussi cristian.marussi@arm.com Signed-off-by: Sudeep Holla sudeep.holla@arm.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/firmware/arm_scmi/bus.c | 6 ++---- drivers/firmware/arm_scmi/common.h | 3 +++ drivers/firmware/arm_scmi/driver.c | 16 +++++++++++++++- 3 files changed, 20 insertions(+), 5 deletions(-)
diff --git a/drivers/firmware/arm_scmi/bus.c b/drivers/firmware/arm_scmi/bus.c index db55c43a2cbda..1377ec76a45db 100644 --- a/drivers/firmware/arm_scmi/bus.c +++ b/drivers/firmware/arm_scmi/bus.c @@ -230,7 +230,7 @@ static void scmi_devices_unregister(void) bus_for_each_dev(&scmi_bus_type, NULL, NULL, __scmi_devices_unregister); }
-static int __init scmi_bus_init(void) +int __init scmi_bus_init(void) { int retval;
@@ -240,12 +240,10 @@ static int __init scmi_bus_init(void)
return retval; } -subsys_initcall(scmi_bus_init);
-static void __exit scmi_bus_exit(void) +void __exit scmi_bus_exit(void) { scmi_devices_unregister(); bus_unregister(&scmi_bus_type); ida_destroy(&scmi_bus_id); } -module_exit(scmi_bus_exit); diff --git a/drivers/firmware/arm_scmi/common.h b/drivers/firmware/arm_scmi/common.h index 6db59a7ac8531..124080955c4a0 100644 --- a/drivers/firmware/arm_scmi/common.h +++ b/drivers/firmware/arm_scmi/common.h @@ -158,6 +158,9 @@ void scmi_setup_protocol_implemented(const struct scmi_handle *handle,
int scmi_base_protocol_init(struct scmi_handle *h);
+int __init scmi_bus_init(void); +void __exit scmi_bus_exit(void); + /* SCMI Transport */ /** * struct scmi_chan_info - Structure representing a SCMI channel information diff --git a/drivers/firmware/arm_scmi/driver.c b/drivers/firmware/arm_scmi/driver.c index 28a3e4902ea4e..5c2f4fab40994 100644 --- a/drivers/firmware/arm_scmi/driver.c +++ b/drivers/firmware/arm_scmi/driver.c @@ -936,7 +936,21 @@ static struct platform_driver scmi_driver = { .remove = scmi_remove, };
-module_platform_driver(scmi_driver); +static int __init scmi_driver_init(void) +{ + scmi_bus_init(); + + return platform_driver_register(&scmi_driver); +} +module_init(scmi_driver_init); + +static void __exit scmi_driver_exit(void) +{ + scmi_bus_exit(); + + platform_driver_unregister(&scmi_driver); +} +module_exit(scmi_driver_exit);
MODULE_ALIAS("platform: arm-scmi"); MODULE_AUTHOR("Sudeep Holla sudeep.holla@arm.com");