Commit 5590f3196b29 ("drivers/core/of: Add symlink to device-tree from
devices with an OF node") adds the symlink `of_node` for each device
pointing to it's device tree node while creating/initialising it.
However the devicetree sysfs is created and setup in of_init which is
executed at core_initcall level. For all the devices created before
of_init, the following error is thrown:
"Error -2(-ENOENT) creating of_node link"
Like many other components in driver model, initialize the sysfs support
for OF/devicetree from driver_init so that it's ready before any devices
are created.
Fixes: 5590f3196b29 ("drivers/core/of: Add symlink to device-tree from
devices with an OF node")
Suggested-by: Rob Herring <[email protected]>
Cc: Grant Likely <[email protected]>
Cc: Rob Herring <[email protected]>
Cc: Pawel Moll <[email protected]>
Cc: Benjamin Herrenschmidt <[email protected]>
Cc: Greg Kroah-Hartman <[email protected]>
Signed-off-by: Sudeep Holla <[email protected]>
---
drivers/base/init.c | 2 ++
drivers/of/base.c | 8 +++-----
include/linux/of.h | 6 ++++++
3 files changed, 11 insertions(+), 5 deletions(-)
diff --git a/drivers/base/init.c b/drivers/base/init.c
index da033d3bab3c..fa149c7678d2 100644
--- a/drivers/base/init.c
+++ b/drivers/base/init.c
@@ -8,6 +8,7 @@
#include <linux/device.h>
#include <linux/init.h>
#include <linux/memory.h>
+#include <linux/of.h>
#include "base.h"
@@ -34,4 +35,5 @@ void __init driver_init(void)
cpu_dev_init();
memory_dev_init();
container_dev_init();
+ of_init();
}
diff --git a/drivers/of/base.c b/drivers/of/base.c
index 99764db0875a..d4d3dbbfed72 100644
--- a/drivers/of/base.c
+++ b/drivers/of/base.c
@@ -189,7 +189,7 @@ int __of_attach_node_sysfs(struct device_node *np)
return 0;
}
-static int __init of_init(void)
+void __init of_init(void)
{
struct device_node *np;
@@ -198,7 +198,8 @@ static int __init of_init(void)
of_kset = kset_create_and_add("devicetree", NULL, firmware_kobj);
if (!of_kset) {
mutex_unlock(&of_mutex);
- return -ENOMEM;
+ pr_err("devicetree: failed to register existing nodes\n");
+ return;
}
for_each_of_allnodes(np)
__of_attach_node_sysfs(np);
@@ -207,10 +208,7 @@ static int __init of_init(void)
/* Symlink in /proc as required by userspace ABI */
if (of_root)
proc_symlink("device-tree", NULL, "/sys/firmware/devicetree/base");
-
- return 0;
}
-core_initcall(of_init);
static struct property *__of_find_property(const struct device_node *np,
const char *name, int *lenp)
diff --git a/include/linux/of.h b/include/linux/of.h
index ddeaae6d2083..1eb9d030b19b 100644
--- a/include/linux/of.h
+++ b/include/linux/of.h
@@ -121,6 +121,8 @@ extern struct device_node *of_stdout;
extern raw_spinlock_t devtree_lock;
#ifdef CONFIG_OF
+void of_init(void);
+
static inline bool is_of_node(struct fwnode_handle *fwnode)
{
return fwnode && fwnode->type == FWNODE_OF;
@@ -376,6 +378,10 @@ bool of_console_check(struct device_node *dn, char *name, int index);
#else /* CONFIG_OF */
+static inline void of_init(void)
+{
+}
+
static inline bool is_of_node(struct fwnode_handle *fwnode)
{
return false;
--
1.9.1
On 14/05/15 10:28, Sudeep Holla wrote:
> Commit 5590f3196b29 ("drivers/core/of: Add symlink to device-tree from
> devices with an OF node") adds the symlink `of_node` for each device
> pointing to it's device tree node while creating/initialising it.
>
> However the devicetree sysfs is created and setup in of_init which is
> executed at core_initcall level. For all the devices created before
> of_init, the following error is thrown:
> "Error -2(-ENOENT) creating of_node link"
>
> Like many other components in driver model, initialize the sysfs support
> for OF/devicetree from driver_init so that it's ready before any devices
> are created.
>
> Fixes: 5590f3196b29 ("drivers/core/of: Add symlink to device-tree from
> devices with an OF node")
> Suggested-by: Rob Herring <[email protected]>
> Cc: Grant Likely <[email protected]>
> Cc: Rob Herring <[email protected]>
> Cc: Pawel Moll <[email protected]>
> Cc: Benjamin Herrenschmidt <[email protected]>
> Cc: Greg Kroah-Hartman <[email protected]>
> Signed-off-by: Sudeep Holla <[email protected]>
> ---
> drivers/base/init.c | 2 ++
> drivers/of/base.c | 8 +++-----
> include/linux/of.h | 6 ++++++
> 3 files changed, 11 insertions(+), 5 deletions(-)
>
Looks like we still have conflict even though the one I pointed was in
bootwrapper. Kbuilder reported the following build error:
drivers/gpu/drm/nouveau/nvkm/subdev/bios/shadowof.c:45:1: error:
conflicting types for 'of_init'
of_init(struct nvkm_bios *bios, const char *name)
^
In file included from arch/powerpc/include/asm/prom.h:23:0,
from arch/powerpc/include/asm/pci.h:20,
from include/linux/pci.h:1460,
from drivers/gpu/drm/nouveau/include/nvif/os.h:7,
from drivers/gpu/drm/nouveau/include/nvkm/core/os.h:3,
from drivers/gpu/drm/nouveau/include/nvkm/core/object.h:3,
from drivers/gpu/drm/nouveau/include/nvkm/core/subdev.h:3,
from drivers/gpu/drm/nouveau/include/nvkm/subdev/bios.h:3,
from drivers/gpu/drm/nouveau/nvkm/subdev/bios/priv.h:3,
from drivers/gpu/drm/nouveau/nvkm/subdev/bios/shadowof.c:23:
include/linux/of.h:124:6: note: previous declaration of 'of_init' was here
void of_init(void);
^
Sorry I couldn't catch this with any ppc defconfigs. Please ignore this
version, will repost updated one soon renaming to of_core_init
as initially discussed.
Regards,
Sudeep
Commit 5590f3196b29 ("drivers/core/of: Add symlink to device-tree from
devices with an OF node") adds the symlink `of_node` for each device
pointing to it's device tree node while creating/initialising it.
However the devicetree sysfs is created and setup in of_init which is
executed at core_initcall level. For all the devices created before
of_init, the following error is thrown:
"Error -2(-ENOENT) creating of_node link"
Like many other components in driver model, initialize the sysfs support
for OF/devicetree from driver_init so that it's ready before any devices
are created.
Fixes: 5590f3196b29 ("drivers/core/of: Add symlink to device-tree from
devices with an OF node")
Suggested-by: Rob Herring <[email protected]>
Cc: Grant Likely <[email protected]>
Cc: Rob Herring <[email protected]>
Cc: Pawel Moll <[email protected]>
Cc: Benjamin Herrenschmidt <[email protected]>
Cc: Greg Kroah-Hartman <[email protected]>
Signed-off-by: Sudeep Holla <[email protected]>
---
drivers/base/init.c | 2 ++
drivers/of/base.c | 8 +++-----
include/linux/of.h | 6 ++++++
3 files changed, 11 insertions(+), 5 deletions(-)
Changes v1->v2:
- renamed of_init to of_core_init to avoid collision with
PPC nouveau drm driver
diff --git a/drivers/base/init.c b/drivers/base/init.c
index da033d3bab3c..48c0e220acc0 100644
--- a/drivers/base/init.c
+++ b/drivers/base/init.c
@@ -8,6 +8,7 @@
#include <linux/device.h>
#include <linux/init.h>
#include <linux/memory.h>
+#include <linux/of.h>
#include "base.h"
@@ -34,4 +35,5 @@ void __init driver_init(void)
cpu_dev_init();
memory_dev_init();
container_dev_init();
+ of_core_init();
}
diff --git a/drivers/of/base.c b/drivers/of/base.c
index 99764db0875a..f0650265febf 100644
--- a/drivers/of/base.c
+++ b/drivers/of/base.c
@@ -189,7 +189,7 @@ int __of_attach_node_sysfs(struct device_node *np)
return 0;
}
-static int __init of_init(void)
+void __init of_core_init(void)
{
struct device_node *np;
@@ -198,7 +198,8 @@ static int __init of_init(void)
of_kset = kset_create_and_add("devicetree", NULL, firmware_kobj);
if (!of_kset) {
mutex_unlock(&of_mutex);
- return -ENOMEM;
+ pr_err("devicetree: failed to register existing nodes\n");
+ return;
}
for_each_of_allnodes(np)
__of_attach_node_sysfs(np);
@@ -207,10 +208,7 @@ static int __init of_init(void)
/* Symlink in /proc as required by userspace ABI */
if (of_root)
proc_symlink("device-tree", NULL, "/sys/firmware/devicetree/base");
-
- return 0;
}
-core_initcall(of_init);
static struct property *__of_find_property(const struct device_node *np,
const char *name, int *lenp)
diff --git a/include/linux/of.h b/include/linux/of.h
index ddeaae6d2083..b871ff9d81d7 100644
--- a/include/linux/of.h
+++ b/include/linux/of.h
@@ -121,6 +121,8 @@ extern struct device_node *of_stdout;
extern raw_spinlock_t devtree_lock;
#ifdef CONFIG_OF
+void of_core_init(void);
+
static inline bool is_of_node(struct fwnode_handle *fwnode)
{
return fwnode && fwnode->type == FWNODE_OF;
@@ -376,6 +378,10 @@ bool of_console_check(struct device_node *dn, char *name, int index);
#else /* CONFIG_OF */
+static inline void of_core_init(void)
+{
+}
+
static inline bool is_of_node(struct fwnode_handle *fwnode)
{
return false;
--
1.9.1
Hi Rob/Greg,
On 14/05/15 15:28, Sudeep Holla wrote:
> Commit 5590f3196b29 ("drivers/core/of: Add symlink to device-tree from
> devices with an OF node") adds the symlink `of_node` for each device
> pointing to it's device tree node while creating/initialising it.
>
> However the devicetree sysfs is created and setup in of_init which is
> executed at core_initcall level. For all the devices created before
> of_init, the following error is thrown:
> "Error -2(-ENOENT) creating of_node link"
>
> Like many other components in driver model, initialize the sysfs support
> for OF/devicetree from driver_init so that it's ready before any devices
> are created.
>
> Fixes: 5590f3196b29 ("drivers/core/of: Add symlink to device-tree from
> devices with an OF node")
> Suggested-by: Rob Herring <[email protected]>
> Cc: Grant Likely <[email protected]>
> Cc: Rob Herring <[email protected]>
> Cc: Pawel Moll <[email protected]>
> Cc: Benjamin Herrenschmidt <[email protected]>
> Cc: Greg Kroah-Hartman <[email protected]>
> Signed-off-by: Sudeep Holla <[email protected]>
I assume one of you will pick this up if there are no further comments ?
Regards,
Sudeep
> ---
> drivers/base/init.c | 2 ++
> drivers/of/base.c | 8 +++-----
> include/linux/of.h | 6 ++++++
> 3 files changed, 11 insertions(+), 5 deletions(-)
>
> Changes v1->v2:
> - renamed of_init to of_core_init to avoid collision with
> PPC nouveau drm driver
>
> diff --git a/drivers/base/init.c b/drivers/base/init.c
> index da033d3bab3c..48c0e220acc0 100644
> --- a/drivers/base/init.c
> +++ b/drivers/base/init.c
> @@ -8,6 +8,7 @@
> #include <linux/device.h>
> #include <linux/init.h>
> #include <linux/memory.h>
> +#include <linux/of.h>
>
> #include "base.h"
>
> @@ -34,4 +35,5 @@ void __init driver_init(void)
> cpu_dev_init();
> memory_dev_init();
> container_dev_init();
> + of_core_init();
> }
> diff --git a/drivers/of/base.c b/drivers/of/base.c
> index 99764db0875a..f0650265febf 100644
> --- a/drivers/of/base.c
> +++ b/drivers/of/base.c
> @@ -189,7 +189,7 @@ int __of_attach_node_sysfs(struct device_node *np)
> return 0;
> }
>
> -static int __init of_init(void)
> +void __init of_core_init(void)
> {
> struct device_node *np;
>
> @@ -198,7 +198,8 @@ static int __init of_init(void)
> of_kset = kset_create_and_add("devicetree", NULL, firmware_kobj);
> if (!of_kset) {
> mutex_unlock(&of_mutex);
> - return -ENOMEM;
> + pr_err("devicetree: failed to register existing nodes\n");
> + return;
> }
> for_each_of_allnodes(np)
> __of_attach_node_sysfs(np);
> @@ -207,10 +208,7 @@ static int __init of_init(void)
> /* Symlink in /proc as required by userspace ABI */
> if (of_root)
> proc_symlink("device-tree", NULL, "/sys/firmware/devicetree/base");
> -
> - return 0;
> }
> -core_initcall(of_init);
>
> static struct property *__of_find_property(const struct device_node *np,
> const char *name, int *lenp)
> diff --git a/include/linux/of.h b/include/linux/of.h
> index ddeaae6d2083..b871ff9d81d7 100644
> --- a/include/linux/of.h
> +++ b/include/linux/of.h
> @@ -121,6 +121,8 @@ extern struct device_node *of_stdout;
> extern raw_spinlock_t devtree_lock;
>
> #ifdef CONFIG_OF
> +void of_core_init(void);
> +
> static inline bool is_of_node(struct fwnode_handle *fwnode)
> {
> return fwnode && fwnode->type == FWNODE_OF;
> @@ -376,6 +378,10 @@ bool of_console_check(struct device_node *dn, char *name, int index);
>
> #else /* CONFIG_OF */
>
> +static inline void of_core_init(void)
> +{
> +}
> +
> static inline bool is_of_node(struct fwnode_handle *fwnode)
> {
> return false;
> --
> 1.9.1
>
On Tue, May 19, 2015 at 01:29:16PM +0100, Sudeep Holla wrote:
> Hi Rob/Greg,
>
> On 14/05/15 15:28, Sudeep Holla wrote:
> >Commit 5590f3196b29 ("drivers/core/of: Add symlink to device-tree from
> >devices with an OF node") adds the symlink `of_node` for each device
> >pointing to it's device tree node while creating/initialising it.
> >
> >However the devicetree sysfs is created and setup in of_init which is
> >executed at core_initcall level. For all the devices created before
> >of_init, the following error is thrown:
> > "Error -2(-ENOENT) creating of_node link"
> >
> >Like many other components in driver model, initialize the sysfs support
> >for OF/devicetree from driver_init so that it's ready before any devices
> >are created.
> >
> >Fixes: 5590f3196b29 ("drivers/core/of: Add symlink to device-tree from
> > devices with an OF node")
> >Suggested-by: Rob Herring <[email protected]>
> >Cc: Grant Likely <[email protected]>
> >Cc: Rob Herring <[email protected]>
> >Cc: Pawel Moll <[email protected]>
> >Cc: Benjamin Herrenschmidt <[email protected]>
> >Cc: Greg Kroah-Hartman <[email protected]>
> >Signed-off-by: Sudeep Holla <[email protected]>
>
> I assume one of you will pick this up if there are no further comments ?
I will once things settle down...
On Tue, May 19, 2015 at 6:17 PM, Greg Kroah-Hartman
<[email protected]> wrote:
> On Tue, May 19, 2015 at 01:29:16PM +0100, Sudeep Holla wrote:
>> Hi Rob/Greg,
>>
>> On 14/05/15 15:28, Sudeep Holla wrote:
>> >Commit 5590f3196b29 ("drivers/core/of: Add symlink to device-tree from
>> >devices with an OF node") adds the symlink `of_node` for each device
>> >pointing to it's device tree node while creating/initialising it.
>> >
>> >However the devicetree sysfs is created and setup in of_init which is
>> >executed at core_initcall level. For all the devices created before
>> >of_init, the following error is thrown:
>> > "Error -2(-ENOENT) creating of_node link"
>> >
>> >Like many other components in driver model, initialize the sysfs support
>> >for OF/devicetree from driver_init so that it's ready before any devices
>> >are created.
>> >
>> >Fixes: 5590f3196b29 ("drivers/core/of: Add symlink to device-tree from
>> > devices with an OF node")
>> >Suggested-by: Rob Herring <[email protected]>
>> >Cc: Grant Likely <[email protected]>
>> >Cc: Rob Herring <[email protected]>
>> >Cc: Pawel Moll <[email protected]>
>> >Cc: Benjamin Herrenschmidt <[email protected]>
>> >Cc: Greg Kroah-Hartman <[email protected]>
>> >Signed-off-by: Sudeep Holla <[email protected]>
>>
>> I assume one of you will pick this up if there are no further comments ?
>
> I will once things settle down...
Thanks.
Regards,
Sudeep
On Thu, May 14, 2015 at 9:28 AM, Sudeep Holla <[email protected]> wrote:
> Commit 5590f3196b29 ("drivers/core/of: Add symlink to device-tree from
> devices with an OF node") adds the symlink `of_node` for each device
> pointing to it's device tree node while creating/initialising it.
>
> However the devicetree sysfs is created and setup in of_init which is
> executed at core_initcall level. For all the devices created before
> of_init, the following error is thrown:
> "Error -2(-ENOENT) creating of_node link"
>
> Like many other components in driver model, initialize the sysfs support
> for OF/devicetree from driver_init so that it's ready before any devices
> are created.
>
> Fixes: 5590f3196b29 ("drivers/core/of: Add symlink to device-tree from
> devices with an OF node")
> Suggested-by: Rob Herring <[email protected]>
> Cc: Grant Likely <[email protected]>
> Cc: Rob Herring <[email protected]>
> Cc: Pawel Moll <[email protected]>
> Cc: Benjamin Herrenschmidt <[email protected]>
> Cc: Greg Kroah-Hartman <[email protected]>
> Signed-off-by: Sudeep Holla <[email protected]>
Acked-by: Rob Herring <[email protected]>
> ---
> drivers/base/init.c | 2 ++
> drivers/of/base.c | 8 +++-----
> include/linux/of.h | 6 ++++++
> 3 files changed, 11 insertions(+), 5 deletions(-)
>
> Changes v1->v2:
> - renamed of_init to of_core_init to avoid collision with
> PPC nouveau drm driver
>
> diff --git a/drivers/base/init.c b/drivers/base/init.c
> index da033d3bab3c..48c0e220acc0 100644
> --- a/drivers/base/init.c
> +++ b/drivers/base/init.c
> @@ -8,6 +8,7 @@
> #include <linux/device.h>
> #include <linux/init.h>
> #include <linux/memory.h>
> +#include <linux/of.h>
>
> #include "base.h"
>
> @@ -34,4 +35,5 @@ void __init driver_init(void)
> cpu_dev_init();
> memory_dev_init();
> container_dev_init();
> + of_core_init();
> }
> diff --git a/drivers/of/base.c b/drivers/of/base.c
> index 99764db0875a..f0650265febf 100644
> --- a/drivers/of/base.c
> +++ b/drivers/of/base.c
> @@ -189,7 +189,7 @@ int __of_attach_node_sysfs(struct device_node *np)
> return 0;
> }
>
> -static int __init of_init(void)
> +void __init of_core_init(void)
> {
> struct device_node *np;
>
> @@ -198,7 +198,8 @@ static int __init of_init(void)
> of_kset = kset_create_and_add("devicetree", NULL, firmware_kobj);
> if (!of_kset) {
> mutex_unlock(&of_mutex);
> - return -ENOMEM;
> + pr_err("devicetree: failed to register existing nodes\n");
> + return;
> }
> for_each_of_allnodes(np)
> __of_attach_node_sysfs(np);
> @@ -207,10 +208,7 @@ static int __init of_init(void)
> /* Symlink in /proc as required by userspace ABI */
> if (of_root)
> proc_symlink("device-tree", NULL, "/sys/firmware/devicetree/base");
> -
> - return 0;
> }
> -core_initcall(of_init);
>
> static struct property *__of_find_property(const struct device_node *np,
> const char *name, int *lenp)
> diff --git a/include/linux/of.h b/include/linux/of.h
> index ddeaae6d2083..b871ff9d81d7 100644
> --- a/include/linux/of.h
> +++ b/include/linux/of.h
> @@ -121,6 +121,8 @@ extern struct device_node *of_stdout;
> extern raw_spinlock_t devtree_lock;
>
> #ifdef CONFIG_OF
> +void of_core_init(void);
> +
> static inline bool is_of_node(struct fwnode_handle *fwnode)
> {
> return fwnode && fwnode->type == FWNODE_OF;
> @@ -376,6 +378,10 @@ bool of_console_check(struct device_node *dn, char *name, int index);
>
> #else /* CONFIG_OF */
>
> +static inline void of_core_init(void)
> +{
> +}
> +
> static inline bool is_of_node(struct fwnode_handle *fwnode)
> {
> return false;
> --
> 1.9.1
>
Hi Sudeep,
On Thu, May 14, 2015 at 03:28:24PM +0100, Sudeep Holla wrote:
> Commit 5590f3196b29 ("drivers/core/of: Add symlink to device-tree from
> devices with an OF node") adds the symlink `of_node` for each device
> pointing to it's device tree node while creating/initialising it.
>
> However the devicetree sysfs is created and setup in of_init which is
> executed at core_initcall level. For all the devices created before
> of_init, the following error is thrown:
> "Error -2(-ENOENT) creating of_node link"
>
> Like many other components in driver model, initialize the sysfs support
> for OF/devicetree from driver_init so that it's ready before any devices
> are created.
>
> Fixes: 5590f3196b29 ("drivers/core/of: Add symlink to device-tree from
> devices with an OF node")
> Suggested-by: Rob Herring <[email protected]>
> Cc: Grant Likely <[email protected]>
> Cc: Rob Herring <[email protected]>
> Cc: Pawel Moll <[email protected]>
> Cc: Benjamin Herrenschmidt <[email protected]>
> Cc: Greg Kroah-Hartman <[email protected]>
> Signed-off-by: Sudeep Holla <[email protected]>
> ---
> drivers/base/init.c | 2 ++
> drivers/of/base.c | 8 +++-----
> include/linux/of.h | 6 ++++++
> 3 files changed, 11 insertions(+), 5 deletions(-)
>
> Changes v1->v2:
> - renamed of_init to of_core_init to avoid collision with
> PPC nouveau drm driver
>
> diff --git a/drivers/base/init.c b/drivers/base/init.c
> index da033d3bab3c..48c0e220acc0 100644
> --- a/drivers/base/init.c
> +++ b/drivers/base/init.c
> @@ -8,6 +8,7 @@
> #include <linux/device.h>
> #include <linux/init.h>
> #include <linux/memory.h>
> +#include <linux/of.h>
>
> #include "base.h"
>
> @@ -34,4 +35,5 @@ void __init driver_init(void)
> cpu_dev_init();
> memory_dev_init();
> container_dev_init();
> + of_core_init();
> }
> diff --git a/drivers/of/base.c b/drivers/of/base.c
> index 99764db0875a..f0650265febf 100644
> --- a/drivers/of/base.c
> +++ b/drivers/of/base.c
> @@ -189,7 +189,7 @@ int __of_attach_node_sysfs(struct device_node *np)
> return 0;
> }
>
> -static int __init of_init(void)
> +void __init of_core_init(void)
> {
> struct device_node *np;
>
> @@ -198,7 +198,8 @@ static int __init of_init(void)
> of_kset = kset_create_and_add("devicetree", NULL, firmware_kobj);
> if (!of_kset) {
> mutex_unlock(&of_mutex);
> - return -ENOMEM;
> + pr_err("devicetree: failed to register existing nodes\n");
> + return;
> }
> for_each_of_allnodes(np)
> __of_attach_node_sysfs(np);
> @@ -207,10 +208,7 @@ static int __init of_init(void)
> /* Symlink in /proc as required by userspace ABI */
> if (of_root)
> proc_symlink("device-tree", NULL, "/sys/firmware/devicetree/base");
> -
> - return 0;
> }
> -core_initcall(of_init);
>
> static struct property *__of_find_property(const struct device_node *np,
> const char *name, int *lenp)
> diff --git a/include/linux/of.h b/include/linux/of.h
> index ddeaae6d2083..b871ff9d81d7 100644
> --- a/include/linux/of.h
> +++ b/include/linux/of.h
> @@ -121,6 +121,8 @@ extern struct device_node *of_stdout;
> extern raw_spinlock_t devtree_lock;
>
> #ifdef CONFIG_OF
> +void of_core_init(void);
> +
> static inline bool is_of_node(struct fwnode_handle *fwnode)
> {
> return fwnode && fwnode->type == FWNODE_OF;
> @@ -376,6 +378,10 @@ bool of_console_check(struct device_node *dn, char *name, int index);
>
> #else /* CONFIG_OF */
>
> +static inline void of_core_init(void)
> +{
> +}
> +
> static inline bool is_of_node(struct fwnode_handle *fwnode)
> {
> return false;
> --
> 1.9.1
>
> --
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> the body of a message to [email protected]
> More majordomo info at http://vger.kernel.org/majordomo-info.html
> Please read the FAQ at http://www.tux.org/lkml/
>
Works on vexpress (qemu), thanks!
Tested-by: Robert Schwebel <[email protected]>
rsc
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On Tue, 19 May 2015 10:17:32 -0700
, Greg Kroah-Hartman <[email protected]>
wrote:
> On Tue, May 19, 2015 at 01:29:16PM +0100, Sudeep Holla wrote:
> > Hi Rob/Greg,
> >
> > On 14/05/15 15:28, Sudeep Holla wrote:
> > >Commit 5590f3196b29 ("drivers/core/of: Add symlink to device-tree from
> > >devices with an OF node") adds the symlink `of_node` for each device
> > >pointing to it's device tree node while creating/initialising it.
> > >
> > >However the devicetree sysfs is created and setup in of_init which is
> > >executed at core_initcall level. For all the devices created before
> > >of_init, the following error is thrown:
> > > "Error -2(-ENOENT) creating of_node link"
> > >
> > >Like many other components in driver model, initialize the sysfs support
> > >for OF/devicetree from driver_init so that it's ready before any devices
> > >are created.
> > >
> > >Fixes: 5590f3196b29 ("drivers/core/of: Add symlink to device-tree from
> > > devices with an OF node")
> > >Suggested-by: Rob Herring <[email protected]>
> > >Cc: Grant Likely <[email protected]>
> > >Cc: Rob Herring <[email protected]>
> > >Cc: Pawel Moll <[email protected]>
> > >Cc: Benjamin Herrenschmidt <[email protected]>
> > >Cc: Greg Kroah-Hartman <[email protected]>
> > >Signed-off-by: Sudeep Holla <[email protected]>
> >
> > I assume one of you will pick this up if there are no further comments ?
>
> I will once things settle down...
I've picked it up. Yell if you'd prefer to take it by your tree.
g.
On Sun, Jun 7, 2015 at 2:05 AM, Grant Likely <[email protected]> wrote:
> On Tue, 19 May 2015 10:17:32 -0700
> , Greg Kroah-Hartman <[email protected]>
> wrote:
>> On Tue, May 19, 2015 at 01:29:16PM +0100, Sudeep Holla wrote:
>> > Hi Rob/Greg,
>> >
>> > On 14/05/15 15:28, Sudeep Holla wrote:
>> > >Commit 5590f3196b29 ("drivers/core/of: Add symlink to device-tree from
>> > >devices with an OF node") adds the symlink `of_node` for each device
>> > >pointing to it's device tree node while creating/initialising it.
>> > >
>> > >However the devicetree sysfs is created and setup in of_init which is
>> > >executed at core_initcall level. For all the devices created before
>> > >of_init, the following error is thrown:
>> > > "Error -2(-ENOENT) creating of_node link"
>> > >
>> > >Like many other components in driver model, initialize the sysfs support
>> > >for OF/devicetree from driver_init so that it's ready before any devices
>> > >are created.
>> > >
>> > >Fixes: 5590f3196b29 ("drivers/core/of: Add symlink to device-tree from
>> > > devices with an OF node")
>> > >Suggested-by: Rob Herring <[email protected]>
>> > >Cc: Grant Likely <[email protected]>
>> > >Cc: Rob Herring <[email protected]>
>> > >Cc: Pawel Moll <[email protected]>
>> > >Cc: Benjamin Herrenschmidt <[email protected]>
>> > >Cc: Greg Kroah-Hartman <[email protected]>
>> > >Signed-off-by: Sudeep Holla <[email protected]>
>> >
>> > I assume one of you will pick this up if there are no further comments ?
>>
>> I will once things settle down...
>
> I've picked it up. Yell if you'd prefer to take it by your tree.
Greg already applied it. It just hit Linus' tree Sat.
Rob
On Sun, 7 Jun 2015 19:29:17 -0500
, Rob Herring <[email protected]>
wrote:
> On Sun, Jun 7, 2015 at 2:05 AM, Grant Likely <[email protected]> wrote:
> > On Tue, 19 May 2015 10:17:32 -0700
> > , Greg Kroah-Hartman <[email protected]>
> > wrote:
> >> On Tue, May 19, 2015 at 01:29:16PM +0100, Sudeep Holla wrote:
> >> > Hi Rob/Greg,
> >> >
> >> > On 14/05/15 15:28, Sudeep Holla wrote:
> >> > >Commit 5590f3196b29 ("drivers/core/of: Add symlink to device-tree from
> >> > >devices with an OF node") adds the symlink `of_node` for each device
> >> > >pointing to it's device tree node while creating/initialising it.
> >> > >
> >> > >However the devicetree sysfs is created and setup in of_init which is
> >> > >executed at core_initcall level. For all the devices created before
> >> > >of_init, the following error is thrown:
> >> > > "Error -2(-ENOENT) creating of_node link"
> >> > >
> >> > >Like many other components in driver model, initialize the sysfs support
> >> > >for OF/devicetree from driver_init so that it's ready before any devices
> >> > >are created.
> >> > >
> >> > >Fixes: 5590f3196b29 ("drivers/core/of: Add symlink to device-tree from
> >> > > devices with an OF node")
> >> > >Suggested-by: Rob Herring <[email protected]>
> >> > >Cc: Grant Likely <[email protected]>
> >> > >Cc: Rob Herring <[email protected]>
> >> > >Cc: Pawel Moll <[email protected]>
> >> > >Cc: Benjamin Herrenschmidt <[email protected]>
> >> > >Cc: Greg Kroah-Hartman <[email protected]>
> >> > >Signed-off-by: Sudeep Holla <[email protected]>
> >> >
> >> > I assume one of you will pick this up if there are no further comments ?
> >>
> >> I will once things settle down...
> >
> > I've picked it up. Yell if you'd prefer to take it by your tree.
>
> Greg already applied it. It just hit Linus' tree Sat.
Yeah, I only just saw that today. I'll drop it from mine.
g.