[PATCH 5/6] HSI: omap_ssi: built omap_ssi and omap_ssi_port into one module

From: Sebastian Reichel
Date: Fri Apr 29 2016 - 22:09:56 EST


Merge omap_ssi and omap_ssi_port into one module. This
fixes problems with module cycle dependencies introduced
by future patches.

Signed-off-by: Sebastian Reichel <sre@xxxxxxxxxx>
---
drivers/hsi/controllers/Kconfig | 5 -----
drivers/hsi/controllers/Makefile | 4 ++--
drivers/hsi/controllers/omap_ssi.h | 2 ++
drivers/hsi/controllers/{omap_ssi.c => omap_ssi_core.c} | 17 ++++++++++++++++-
drivers/hsi/controllers/omap_ssi_port.c | 16 +---------------
5 files changed, 21 insertions(+), 23 deletions(-)
rename drivers/hsi/controllers/{omap_ssi.c => omap_ssi_core.c} (97%)

diff --git a/drivers/hsi/controllers/Kconfig b/drivers/hsi/controllers/Kconfig
index 6aba27808172..084ec97eec64 100644
--- a/drivers/hsi/controllers/Kconfig
+++ b/drivers/hsi/controllers/Kconfig
@@ -12,8 +12,3 @@ config OMAP_SSI
If you say Y here, you will enable the OMAP SSI hardware driver.

If unsure, say N.
-
-config OMAP_SSI_PORT
- tristate
- default m if OMAP_SSI=m
- default y if OMAP_SSI=y
diff --git a/drivers/hsi/controllers/Makefile b/drivers/hsi/controllers/Makefile
index d2665cf9c545..7aba9c7f71bb 100644
--- a/drivers/hsi/controllers/Makefile
+++ b/drivers/hsi/controllers/Makefile
@@ -2,5 +2,5 @@
# Makefile for HSI controllers drivers
#

-obj-$(CONFIG_OMAP_SSI) += omap_ssi.o
-obj-$(CONFIG_OMAP_SSI_PORT) += omap_ssi_port.o
+omap_ssi-objs += omap_ssi_core.o omap_ssi_port.o
+obj-$(CONFIG_OMAP_SSI) += omap_ssi.o
diff --git a/drivers/hsi/controllers/omap_ssi.h b/drivers/hsi/controllers/omap_ssi.h
index 1fa028078a3c..e493321cb0c3 100644
--- a/drivers/hsi/controllers/omap_ssi.h
+++ b/drivers/hsi/controllers/omap_ssi.h
@@ -164,4 +164,6 @@ struct omap_ssi_controller {
#endif
};

+extern struct platform_driver ssi_port_pdriver;
+
#endif /* __LINUX_HSI_OMAP_SSI_H__ */
diff --git a/drivers/hsi/controllers/omap_ssi.c b/drivers/hsi/controllers/omap_ssi_core.c
similarity index 97%
rename from drivers/hsi/controllers/omap_ssi.c
rename to drivers/hsi/controllers/omap_ssi_core.c
index 68dfdaa19938..535c76038288 100644
--- a/drivers/hsi/controllers/omap_ssi.c
+++ b/drivers/hsi/controllers/omap_ssi_core.c
@@ -605,7 +605,22 @@ static struct platform_driver ssi_pdriver = {
},
};

-module_platform_driver(ssi_pdriver);
+static int __init ssi_init(void) {
+ int ret;
+
+ ret = platform_driver_register(&ssi_pdriver);
+ if (ret)
+ return ret;
+
+ return platform_driver_register(&ssi_port_pdriver);
+}
+module_init(ssi_init);
+
+static void __exit ssi_exit(void) {
+ platform_driver_unregister(&ssi_port_pdriver);
+ platform_driver_unregister(&ssi_pdriver);
+}
+module_exit(ssi_exit);

MODULE_ALIAS("platform:omap_ssi");
MODULE_AUTHOR("Carlos Chinea <carlos.chinea@xxxxxxxxx>");
diff --git a/drivers/hsi/controllers/omap_ssi_port.c b/drivers/hsi/controllers/omap_ssi_port.c
index 530095ed39e7..1569bbb53ee8 100644
--- a/drivers/hsi/controllers/omap_ssi_port.c
+++ b/drivers/hsi/controllers/omap_ssi_port.c
@@ -1117,11 +1117,6 @@ static int ssi_port_probe(struct platform_device *pd)

dev_dbg(&pd->dev, "init ssi port...\n");

- if (!try_module_get(ssi->owner)) {
- dev_err(&pd->dev, "could not increment parent module refcount\n");
- return -ENODEV;
- }
-
if (!ssi->port || !omap_ssi->port) {
dev_err(&pd->dev, "ssi controller not initialized!\n");
err = -ENODEV;
@@ -1242,7 +1237,6 @@ static int ssi_port_remove(struct platform_device *pd)

omap_ssi->port[omap_port->port_id] = NULL;
platform_set_drvdata(pd, NULL);
- module_put(ssi->owner);
pm_runtime_disable(&pd->dev);

return 0;
@@ -1369,7 +1363,7 @@ MODULE_DEVICE_TABLE(of, omap_ssi_port_of_match);
#define omap_ssi_port_of_match NULL
#endif

-static struct platform_driver ssi_port_pdriver = {
+struct platform_driver ssi_port_pdriver = {
.probe = ssi_port_probe,
.remove = ssi_port_remove,
.driver = {
@@ -1378,11 +1372,3 @@ static struct platform_driver ssi_port_pdriver = {
.pm = DEV_PM_OPS,
},
};
-
-module_platform_driver(ssi_port_pdriver);
-
-MODULE_ALIAS("platform:omap_ssi_port");
-MODULE_AUTHOR("Carlos Chinea <carlos.chinea@xxxxxxxxx>");
-MODULE_AUTHOR("Sebastian Reichel <sre@xxxxxxxxxx>");
-MODULE_DESCRIPTION("Synchronous Serial Interface Port Driver");
-MODULE_LICENSE("GPL v2");
--
2.8.1