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authorDave Airlie <airlied@redhat.com>2012-10-02 09:19:32 +1000
committerDave Airlie <airlied@redhat.com>2012-10-02 09:19:32 +1000
commit8c98449ad316ba95a8f0a3ee3eaeb03dcd7f9ccc (patch)
tree575c51d772059012eeffc301597589ed7c391321 /drivers/clk/clk-devres.c
parent7facf16690dc4160e5ff605271704183ff56b2d9 (diff)
parentf531dcb23f9a5c6ad77e451459df965dc9a0c0c8 (diff)
Merge branch 'for-airlied' of git://people.freedesktop.org/~danvet/drm-intel into drm-next
Last pile of stuff for 3.7, essentially just a bunch of bigger fixes and a few less intrusive features: - cpu freq interface in sysfs from Ben - cpu edp fixes and some related cleanups - write-combining ptes for pre-gen6 (Chris) - basic CADL support (Peter Wu), this fixes quite a few issues with backlights ... - rework of the gem backing pages handling (preps for stolen mem handling) from Chris - some more cleanup-fallout from the modeset-rework On top of that I've done a backmerge of -rc7(since the conflicts got too messy and I've pushed out broken merged trees too often). I've also included 3 fixes on top of what QA beat on: - Fix for a infoframe handling regression in 3.5 - infoframe blows up too often and 3.6 is pretty much done, so I'd like to merge that through -next and the stable process and give it more exposure before it lands in a stable tree. - ioctl cosmetics^Wspelling fix in the structs (userspace won't be affected, since all existing userspace uses private copies of the ioctl struct definitions, and the struct layout itself is abi compatible). - Bugfix for a regression introduced in this pull's testing cycle. * 'for-airlied' of git://people.freedesktop.org/~danvet/drm-intel: (695 commits) drm/i915: Wrap external callers to IPS state with appropriate locks drm/i915: s/cacheing/caching/ drm/i915: make sure we write all the DIP data bytes drm/i915: BUG() on unexpected HDMI register ...
Diffstat (limited to 'drivers/clk/clk-devres.c')
-rw-r--r--drivers/clk/clk-devres.c55
1 files changed, 55 insertions, 0 deletions
diff --git a/drivers/clk/clk-devres.c b/drivers/clk/clk-devres.c
new file mode 100644
index 00000000000..8f571548870
--- /dev/null
+++ b/drivers/clk/clk-devres.c
@@ -0,0 +1,55 @@
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/clk.h>
+#include <linux/device.h>
+#include <linux/export.h>
+#include <linux/gfp.h>
+
+static void devm_clk_release(struct device *dev, void *res)
+{
+ clk_put(*(struct clk **)res);
+}
+
+struct clk *devm_clk_get(struct device *dev, const char *id)
+{
+ struct clk **ptr, *clk;
+
+ ptr = devres_alloc(devm_clk_release, sizeof(*ptr), GFP_KERNEL);
+ if (!ptr)
+ return ERR_PTR(-ENOMEM);
+
+ clk = clk_get(dev, id);
+ if (!IS_ERR(clk)) {
+ *ptr = clk;
+ devres_add(dev, ptr);
+ } else {
+ devres_free(ptr);
+ }
+
+ return clk;
+}
+EXPORT_SYMBOL(devm_clk_get);
+
+static int devm_clk_match(struct device *dev, void *res, void *data)
+{
+ struct clk **c = res;
+ if (!c || !*c) {
+ WARN_ON(!c || !*c);
+ return 0;
+ }
+ return *c == data;
+}
+
+void devm_clk_put(struct device *dev, struct clk *clk)
+{
+ int ret;
+
+ ret = devres_release(dev, devm_clk_release, devm_clk_match, clk);
+
+ WARN_ON(ret);
+}
+EXPORT_SYMBOL(devm_clk_put);