From 518e1624f56615a88c91bc79c7b4b4d9eb2419e5 Mon Sep 17 00:00:00 2001
From: Arnd Bergmann <arnd@arndb.de>
Date: Tue, 3 Jun 2014 17:14:01 +0200
Subject: HSI: fix omap ssi driver dependency

The SSI protocol implementation has an incorrect dependency on the OMAP_SSI
driver, which allows SSI to be built-in while the underlying OMAP_SSI
implementation is a loadable module, causing a link error.

This changes the dependency to the simpler 'depends on OMAP_SSI' that also
ensures that SSI-protocol can only be a module if OMAP_SSI is not built-in.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Sebastian Reichel <sre@kernel.org>
Cc: Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com>
Cc: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Sebastian Reichel <sre@kernel.org>

diff --git a/drivers/hsi/clients/Kconfig b/drivers/hsi/clients/Kconfig
index 71b9f9a..bc60dec 100644
--- a/drivers/hsi/clients/Kconfig
+++ b/drivers/hsi/clients/Kconfig
@@ -15,7 +15,7 @@ config NOKIA_MODEM
 
 config SSI_PROTOCOL
 	tristate "SSI protocol"
-	depends on HSI && PHONET && (OMAP_SSI=y || OMAP_SSI=m)
+	depends on HSI && PHONET && OMAP_SSI
 	help
 	If you say Y here, you will enable the SSI protocol aka McSAAB.
 
-- 
cgit v0.10.2


From b357d7b58f379ebe8038cd97b6204f2f5c52220d Mon Sep 17 00:00:00 2001
From: Arnd Bergmann <arnd@arndb.de>
Date: Wed, 4 Jun 2014 10:00:59 +0200
Subject: hsi: omap_ssi_port: use normal module refcounting

The ref_module() function is used for internal housekeeping of the
module code, it's not normally used by subsystems or device drivers,
and the use of ref_module in the omap_ssi_port driver causes a link
build error when modules are disabled:

hsi/controllers/omap_ssi_port.c: In function 'ssi_port_probe':
hsi/controllers/omap_ssi_port.c:1119:2: error: implicit declaration of function 'ref_module' [-Werror=implicit-function-declaration]

This changes the omap_ssi_port driver to use try_module_get()
and module_put() instead, which is the normal way to ensure that
the driver providing a device used in another module does not
go away.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Sebastian Reichel <sre@kernel.org>
Cc: Carlos Chinea <carlos.chinea@nokia.com>
Cc: Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>

diff --git a/drivers/hsi/controllers/omap_ssi_port.c b/drivers/hsi/controllers/omap_ssi_port.c
index b8693f0..29aea0b 100644
--- a/drivers/hsi/controllers/omap_ssi_port.c
+++ b/drivers/hsi/controllers/omap_ssi_port.c
@@ -1116,8 +1116,7 @@ static int __init ssi_port_probe(struct platform_device *pd)
 
 	dev_dbg(&pd->dev, "init ssi port...\n");
 
-	err = ref_module(THIS_MODULE, ssi->owner);
-	if (err) {
+	if (!try_module_get(ssi->owner)) {
 		dev_err(&pd->dev, "could not increment parent module refcount (err=%d)\n",
 			err);
 		return -ENODEV;
@@ -1254,6 +1253,7 @@ static int __exit 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;
-- 
cgit v0.10.2