* [RFC][PATCH] of: add a dummy implementation of of_get_property() in of.h
@ 2011-08-05 8:56 ` Axel Lin
0 siblings, 0 replies; 4+ messages in thread
From: Axel Lin @ 2011-08-05 8:56 UTC (permalink / raw)
To: linux-kernel
Cc: Colin Cross, John Bonesio, Jean Delvare (PC drivers, core),
Ben Dooks (embedded platforms),
Grant Likely, linux-i2c, devicetree-discuss, Sam Ravnborg sam
Then we can avoid having #ifdef CONFIG_OF splattered around the place
calling of_get_property(), it leads to errors.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
---
This patch fixes below build error with "make tegra_defconfig;make".
CC drivers/i2c/busses/i2c-tegra.o
drivers/i2c/busses/i2c-tegra.c: In function 'tegra_i2c_probe':
drivers/i2c/busses/i2c-tegra.c:615: error: implicit declaration of function 'of_get_property'
drivers/i2c/busses/i2c-tegra.c:616: warning: assignment makes pointer from integer without a cast
make[3]: *** [drivers/i2c/busses/i2c-tegra.o] Error 1
make[2]: *** [drivers/i2c/busses] Error 2
make[1]: *** [drivers/i2c] Error 2
make: *** [drivers] Error 2
Regards,
Axel
include/linux/of.h | 6 ++++++
1 files changed, 6 insertions(+), 0 deletions(-)
diff --git a/include/linux/of.h b/include/linux/of.h
index 0085bb0..320cbad 100644
--- a/include/linux/of.h
+++ b/include/linux/of.h
@@ -256,6 +256,12 @@ static inline int of_property_read_string(struct device_node *np,
return -ENOSYS;
}
+static inline const void *of_get_property(const struct device_node *np,
+ const char *name, int *lenp)
+{
+ return NULL;
+}
+
#endif /* CONFIG_OF */
static inline int of_property_read_u32(const struct device_node *np,
--
1.7.4.1
^ permalink raw reply related [flat|nested] 4+ messages in thread
* [RFC][PATCH] of: add a dummy implementation of of_get_property() in of.h
@ 2011-08-05 8:56 ` Axel Lin
0 siblings, 0 replies; 4+ messages in thread
From: Axel Lin @ 2011-08-05 8:56 UTC (permalink / raw)
To: linux-kernel-u79uwXL29TY76Z2rM5mHXA
Cc: Colin Cross, John Bonesio, Jean Delvare (PC drivers, core),
Ben Dooks (embedded platforms),
Grant Likely, linux-i2c-u79uwXL29TY76Z2rM5mHXA,
devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ, Sam Ravnborg sam
Then we can avoid having #ifdef CONFIG_OF splattered around the place
calling of_get_property(), it leads to errors.
Signed-off-by: Axel Lin <axel.lin-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
---
This patch fixes below build error with "make tegra_defconfig;make".
CC drivers/i2c/busses/i2c-tegra.o
drivers/i2c/busses/i2c-tegra.c: In function 'tegra_i2c_probe':
drivers/i2c/busses/i2c-tegra.c:615: error: implicit declaration of function 'of_get_property'
drivers/i2c/busses/i2c-tegra.c:616: warning: assignment makes pointer from integer without a cast
make[3]: *** [drivers/i2c/busses/i2c-tegra.o] Error 1
make[2]: *** [drivers/i2c/busses] Error 2
make[1]: *** [drivers/i2c] Error 2
make: *** [drivers] Error 2
Regards,
Axel
include/linux/of.h | 6 ++++++
1 files changed, 6 insertions(+), 0 deletions(-)
diff --git a/include/linux/of.h b/include/linux/of.h
index 0085bb0..320cbad 100644
--- a/include/linux/of.h
+++ b/include/linux/of.h
@@ -256,6 +256,12 @@ static inline int of_property_read_string(struct device_node *np,
return -ENOSYS;
}
+static inline const void *of_get_property(const struct device_node *np,
+ const char *name, int *lenp)
+{
+ return NULL;
+}
+
#endif /* CONFIG_OF */
static inline int of_property_read_u32(const struct device_node *np,
--
1.7.4.1
^ permalink raw reply related [flat|nested] 4+ messages in thread
* Re: [RFC][PATCH] of: add a dummy implementation of of_get_property() in of.h
2011-08-05 8:56 ` Axel Lin
@ 2011-08-05 9:05 ` Tobias Klauser
-1 siblings, 0 replies; 4+ messages in thread
From: Tobias Klauser @ 2011-08-05 9:05 UTC (permalink / raw)
To: Axel Lin
Cc: linux-kernel, Colin Cross, John Bonesio,
Jean Delvare (PC drivers, core), Ben Dooks (embedded platforms),
Grant Likely, linux-i2c, devicetree-discuss, Sam Ravnborg sam
On 2011-08-05 at 10:56:14 +0200, Axel Lin <axel.lin@gmail.com> wrote:
> Then we can avoid having #ifdef CONFIG_OF splattered around the place
> calling of_get_property(), it leads to errors.
You shouldn't redefine of_get_property in the driver. Rather add a
wrapper function to the driver which will extract the device tree
information in CONFIG_OF is enabled and which will just return -ENODEV
if CONFIG_OF is not set.
Cheers
Tobias
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [RFC][PATCH] of: add a dummy implementation of of_get_property() in of.h
@ 2011-08-05 9:05 ` Tobias Klauser
0 siblings, 0 replies; 4+ messages in thread
From: Tobias Klauser @ 2011-08-05 9:05 UTC (permalink / raw)
To: Axel Lin
Cc: linux-kernel-u79uwXL29TY76Z2rM5mHXA, Colin Cross, John Bonesio,
Jean Delvare (PC drivers, core), Ben Dooks (embedded platforms),
Grant Likely, linux-i2c-u79uwXL29TY76Z2rM5mHXA,
devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ, Sam Ravnborg sam
On 2011-08-05 at 10:56:14 +0200, Axel Lin <axel.lin-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> Then we can avoid having #ifdef CONFIG_OF splattered around the place
> calling of_get_property(), it leads to errors.
You shouldn't redefine of_get_property in the driver. Rather add a
wrapper function to the driver which will extract the device tree
information in CONFIG_OF is enabled and which will just return -ENODEV
if CONFIG_OF is not set.
Cheers
Tobias
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2011-08-05 9:05 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
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2011-08-05 8:56 [RFC][PATCH] of: add a dummy implementation of of_get_property() in of.h Axel Lin
2011-08-05 8:56 ` Axel Lin
2011-08-05 9:05 ` Tobias Klauser
2011-08-05 9:05 ` Tobias Klauser
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