ipq806x: fix build errors

Add missing patches that broke LEDE builder while updating WDT driver

Signed-off-by: Pavel Kubelun <be.dissent@gmail.com>

1 files changed, 87 insertions, 0 deletions

diff --git a/target/linux/ipq806x/patches-4.4/011-2-fix-bld-errs-watchdog-da9052_wdt-Drop-reference-counting.patch b/target/linux/ipq806x/patches-4.4/011-2-fix-bld-errs-watchdog-da9052_wdt-Drop-reference-counting.patch
new file mode 100644
index 0000000000..501bd13636
--- /dev/null
+++ b/target/linux/ipq806x/patches-4.4/011-2-fix-bld-errs-watchdog-da9052_wdt-Drop-reference-counting.patch
@@ -0,0 +1,87 @@
+From 756d1e9247dff6d416b0c9e073247f5e808bb5fa Mon Sep 17 00:00:00 2001
+From: Guenter Roeck <linux@roeck-us.net>
+Date: Fri, 25 Dec 2015 16:01:43 -0800
+Subject: watchdog: da9052_wdt: Drop reference counting
+
+Reference counting is now implemented in the watchdog core and no longer
+required in watchdog drivers.
+
+Since it was implememented a no-op, and since the local memory is allocated
+with devm_kzalloc(), the reference counting code in the driver really did
+not really work anyway, and this patch effectively fixes a bug which could
+cause a crash on unloading if the watchdog device was still open.
+
+Signed-off-by: Guenter Roeck <linux@roeck-us.net>
+Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
+---
+ drivers/watchdog/da9052_wdt.c | 24 ------------------------
+ 1 file changed, 24 deletions(-)
+
+--- a/drivers/watchdog/da9052_wdt.c
++++ b/drivers/watchdog/da9052_wdt.c
+@@ -31,7 +31,6 @@
+ struct da9052_wdt_data {
+ 	struct watchdog_device wdt;
+ 	struct da9052 *da9052;
+-	struct kref kref;
+ 	unsigned long jpast;
+ };
+ 
+@@ -51,10 +50,6 @@ static const struct {
+ };
+ 
+ 
+-static void da9052_wdt_release_resources(struct kref *r)
+-{
+-}
+-
+ static int da9052_wdt_set_timeout(struct watchdog_device *wdt_dev,
+ 				  unsigned int timeout)
+ {
+@@ -104,20 +99,6 @@ static int da9052_wdt_set_timeout(struct
+ 	return 0;
+ }
+ 
+-static void da9052_wdt_ref(struct watchdog_device *wdt_dev)
+-{
+-	struct da9052_wdt_data *driver_data = watchdog_get_drvdata(wdt_dev);
+-
+-	kref_get(&driver_data->kref);
+-}
+-
+-static void da9052_wdt_unref(struct watchdog_device *wdt_dev)
+-{
+-	struct da9052_wdt_data *driver_data = watchdog_get_drvdata(wdt_dev);
+-
+-	kref_put(&driver_data->kref, da9052_wdt_release_resources);
+-}
+-
+ static int da9052_wdt_start(struct watchdog_device *wdt_dev)
+ {
+ 	return da9052_wdt_set_timeout(wdt_dev, wdt_dev->timeout);
+@@ -170,8 +151,6 @@ static const struct watchdog_ops da9052_
+ 	.stop = da9052_wdt_stop,
+ 	.ping = da9052_wdt_ping,
+ 	.set_timeout = da9052_wdt_set_timeout,
+-	.ref = da9052_wdt_ref,
+-	.unref = da9052_wdt_unref,
+ };
+ 
+ 
+@@ -198,8 +177,6 @@ static int da9052_wdt_probe(struct platf
+ 	da9052_wdt->parent = &pdev->dev;
+ 	watchdog_set_drvdata(da9052_wdt, driver_data);
+ 
+-	kref_init(&driver_data->kref);
+-
+ 	ret = da9052_reg_update(da9052, DA9052_CONTROL_D_REG,
+ 				DA9052_CONTROLD_TWDSCALE, 0);
+ 	if (ret < 0) {
+@@ -225,7 +202,6 @@ static int da9052_wdt_remove(struct plat
+ 	struct da9052_wdt_data *driver_data = platform_get_drvdata(pdev);
+ 
+ 	watchdog_unregister_device(&driver_data->wdt);
+-	kref_put(&driver_data->kref, da9052_wdt_release_resources);
+ 
+ 	return 0;
+ }