| Message ID | 87vav89chw.wl%kuninori.morimoto.gx@renesas.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Mon, Nov 28, 2016 at 09:32:51AM +0000, Kuninori Morimoto wrote: > > From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> > > Current Linux has of_clk_get(), but doesn't have devm_of_clk_get(). > This patch adds it. > > Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> > --- > v2 -> v3 > > - implement in clk-devres.c, and reused existing devm_clk_release() > > drivers/clk/clk-devres.c | 21 +++++++++++++++++++++ > include/linux/clk.h | 7 +++++++ > 2 files changed, 28 insertions(+) > > diff --git a/drivers/clk/clk-devres.c b/drivers/clk/clk-devres.c > index 8f57154..2449b25 100644 > --- a/drivers/clk/clk-devres.c > +++ b/drivers/clk/clk-devres.c > @@ -53,3 +53,24 @@ void devm_clk_put(struct device *dev, struct clk *clk) > WARN_ON(ret); > } > EXPORT_SYMBOL(devm_clk_put); > + > +struct clk *devm_of_clk_get(struct device *dev, > + struct device_node *np, int index) > +{ > + struct clk **ptr, *clk; > + > + ptr = devres_alloc(devm_clk_release, sizeof(*ptr), GFP_KERNEL); > + if (!ptr) > + return ERR_PTR(-ENOMEM); > + > + clk = of_clk_get(np, index); > + if (!IS_ERR(clk)) { > + *ptr = clk; > + devres_add(dev, ptr); > + } else { > + devres_free(ptr); > + } > + > + return clk; > +} > +EXPORT_SYMBOL(devm_of_clk_get); > diff --git a/include/linux/clk.h b/include/linux/clk.h > index 123c027..1b713db 100644 > --- a/include/linux/clk.h > +++ b/include/linux/clk.h > @@ -506,6 +506,8 @@ static inline void clk_disable_unprepare(struct clk *clk) > > #if defined(CONFIG_OF) && defined(CONFIG_COMMON_CLK) > struct clk *of_clk_get(struct device_node *np, int index); > +struct clk *devm_of_clk_get(struct device *dev, > + struct device_node *np, int index); No need for this to be within the ifdef. > struct clk *of_clk_get_by_name(struct device_node *np, const char *name); > struct clk *of_clk_get_from_provider(struct of_phandle_args *clkspec); > #else > @@ -513,6 +515,11 @@ static inline struct clk *of_clk_get(struct device_node *np, int index) > { > return ERR_PTR(-ENOENT); > } > +static inline struct clk *devm_of_clk_get(struct device *dev, > + struct device_node *np, int index) > +{ > + return ERR_PTR(-ENOENT); > +} and so no need for this either. In any case, this will cause !OF || !COMMON_CLK builds to fail because this definition will conflict with that in clk-devres.c > static inline struct clk *of_clk_get_by_name(struct device_node *np, > const char *name) > { > -- > 1.9.1 >
Hi Kuninori,
[auto build test ERROR on clk/clk-next]
[also build test ERROR on v4.9-rc7 next-20161128]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
url: https://github.com/0day-ci/linux/commits/Kuninori-Morimoto/clkdev-add-devm_of_clk_get/20161128-173723
base: https://git.kernel.org/pub/scm/linux/kernel/git/clk/linux.git clk-next
config: i386-randconfig-x004-201648 (attached as .config)
compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901
reproduce:
# save the attached .config to linux build tree
make ARCH=i386
All errors (new ones prefixed by >>):
>> drivers/clk/clk-devres.c:57:13: error: redefinition of 'devm_of_clk_get'
struct clk *devm_of_clk_get(struct device *dev,
^~~~~~~~~~~~~~~
In file included from drivers/clk/clk-devres.c:7:0:
include/linux/clk.h:518:27: note: previous definition of 'devm_of_clk_get' was here
static inline struct clk *devm_of_clk_get(struct device *dev,
^~~~~~~~~~~~~~~
vim +/devm_of_clk_get +57 drivers/clk/clk-devres.c
51 ret = devres_release(dev, devm_clk_release, devm_clk_match, clk);
52
53 WARN_ON(ret);
54 }
55 EXPORT_SYMBOL(devm_clk_put);
56
> 57 struct clk *devm_of_clk_get(struct device *dev,
58 struct device_node *np, int index)
59 {
60 struct clk **ptr, *clk;
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
diff --git a/drivers/clk/clk-devres.c b/drivers/clk/clk-devres.c index 8f57154..2449b25 100644 --- a/drivers/clk/clk-devres.c +++ b/drivers/clk/clk-devres.c @@ -53,3 +53,24 @@ void devm_clk_put(struct device *dev, struct clk *clk) WARN_ON(ret); } EXPORT_SYMBOL(devm_clk_put); + +struct clk *devm_of_clk_get(struct device *dev, + struct device_node *np, int index) +{ + struct clk **ptr, *clk; + + ptr = devres_alloc(devm_clk_release, sizeof(*ptr), GFP_KERNEL); + if (!ptr) + return ERR_PTR(-ENOMEM); + + clk = of_clk_get(np, index); + if (!IS_ERR(clk)) { + *ptr = clk; + devres_add(dev, ptr); + } else { + devres_free(ptr); + } + + return clk; +} +EXPORT_SYMBOL(devm_of_clk_get); diff --git a/include/linux/clk.h b/include/linux/clk.h index 123c027..1b713db 100644 --- a/include/linux/clk.h +++ b/include/linux/clk.h @@ -506,6 +506,8 @@ static inline void clk_disable_unprepare(struct clk *clk) #if defined(CONFIG_OF) && defined(CONFIG_COMMON_CLK) struct clk *of_clk_get(struct device_node *np, int index); +struct clk *devm_of_clk_get(struct device *dev, + struct device_node *np, int index); struct clk *of_clk_get_by_name(struct device_node *np, const char *name); struct clk *of_clk_get_from_provider(struct of_phandle_args *clkspec); #else @@ -513,6 +515,11 @@ static inline struct clk *of_clk_get(struct device_node *np, int index) { return ERR_PTR(-ENOENT); } +static inline struct clk *devm_of_clk_get(struct device *dev, + struct device_node *np, int index) +{ + return ERR_PTR(-ENOENT); +} static inline struct clk *of_clk_get_by_name(struct device_node *np, const char *name) {