diff mbox

[v3,6/6] mfd: dt: Move syscon bindings to syscon subdirectory

Message ID 20161206025321.1792-7-andrew@aj.id.au
State Rejected, archived
Headers show

Commit Message

Andrew Jeffery Dec. 6, 2016, 2:53 a.m. UTC
The use of syscons is growing, lets collate them in their own part of
the bindings tree.

Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
---
 Documentation/devicetree/bindings/mfd/{ => syscon}/aspeed-scu.txt         | 0
 Documentation/devicetree/bindings/mfd/{ => syscon}/atmel-gpbr.txt         | 0
 Documentation/devicetree/bindings/mfd/{ => syscon}/atmel-matrix.txt       | 0
 Documentation/devicetree/bindings/mfd/{ => syscon}/atmel-smc.txt          | 0
 Documentation/devicetree/bindings/mfd/{ => syscon}/qcom,tcsr.txt          | 0
 Documentation/devicetree/bindings/mfd/{ => syscon}/syscon.txt             | 0
 .../devicetree/bindings/mfd/{ => syscon}/ti-keystone-devctrl.txt          | 0
 7 files changed, 0 insertions(+), 0 deletions(-)
 rename Documentation/devicetree/bindings/mfd/{ => syscon}/aspeed-scu.txt (100%)
 rename Documentation/devicetree/bindings/mfd/{ => syscon}/atmel-gpbr.txt (100%)
 rename Documentation/devicetree/bindings/mfd/{ => syscon}/atmel-matrix.txt (100%)
 rename Documentation/devicetree/bindings/mfd/{ => syscon}/atmel-smc.txt (100%)
 rename Documentation/devicetree/bindings/mfd/{ => syscon}/qcom,tcsr.txt (100%)
 rename Documentation/devicetree/bindings/mfd/{ => syscon}/syscon.txt (100%)
 rename Documentation/devicetree/bindings/mfd/{ => syscon}/ti-keystone-devctrl.txt (100%)

Comments

Rob Herring Dec. 12, 2016, 3:39 p.m. UTC | #1
On Tue, Dec 06, 2016 at 01:53:21PM +1100, Andrew Jeffery wrote:
> The use of syscons is growing, lets collate them in their own part of
> the bindings tree.
> 
> Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
> ---
>  Documentation/devicetree/bindings/mfd/{ => syscon}/aspeed-scu.txt         | 0
>  Documentation/devicetree/bindings/mfd/{ => syscon}/atmel-gpbr.txt         | 0
>  Documentation/devicetree/bindings/mfd/{ => syscon}/atmel-matrix.txt       | 0
>  Documentation/devicetree/bindings/mfd/{ => syscon}/atmel-smc.txt          | 0
>  Documentation/devicetree/bindings/mfd/{ => syscon}/qcom,tcsr.txt          | 0
>  Documentation/devicetree/bindings/mfd/{ => syscon}/syscon.txt             | 0
>  .../devicetree/bindings/mfd/{ => syscon}/ti-keystone-devctrl.txt          | 0
>  7 files changed, 0 insertions(+), 0 deletions(-)
>  rename Documentation/devicetree/bindings/mfd/{ => syscon}/aspeed-scu.txt (100%)
>  rename Documentation/devicetree/bindings/mfd/{ => syscon}/atmel-gpbr.txt (100%)
>  rename Documentation/devicetree/bindings/mfd/{ => syscon}/atmel-matrix.txt (100%)
>  rename Documentation/devicetree/bindings/mfd/{ => syscon}/atmel-smc.txt (100%)
>  rename Documentation/devicetree/bindings/mfd/{ => syscon}/qcom,tcsr.txt (100%)
>  rename Documentation/devicetree/bindings/mfd/{ => syscon}/syscon.txt (100%)
>  rename Documentation/devicetree/bindings/mfd/{ => syscon}/ti-keystone-devctrl.txt (100%)

I'm not so sure this is the right direction. syscon usage is pretty much 
spread throughout the tree.

Rob
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Andrew Jeffery Dec. 13, 2016, 4:53 a.m. UTC | #2
On Mon, 2016-12-12 at 09:39 -0600, Rob Herring wrote:
> On Tue, Dec 06, 2016 at 01:53:21PM +1100, Andrew Jeffery wrote:
> > The use of syscons is growing, lets collate them in their own part of
> > the bindings tree.
> > 
> > > > Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
> > ---
> >  Documentation/devicetree/bindings/mfd/{ => syscon}/aspeed-scu.txt         | 0
> >  Documentation/devicetree/bindings/mfd/{ => syscon}/atmel-gpbr.txt         | 0
> >  Documentation/devicetree/bindings/mfd/{ => syscon}/atmel-matrix.txt       | 0
> >  Documentation/devicetree/bindings/mfd/{ => syscon}/atmel-smc.txt          | 0
> >  Documentation/devicetree/bindings/mfd/{ => syscon}/qcom,tcsr.txt          | 0
> >  Documentation/devicetree/bindings/mfd/{ => syscon}/syscon.txt             | 0
> >  .../devicetree/bindings/mfd/{ => syscon}/ti-keystone-devctrl.txt          | 0
> >  7 files changed, 0 insertions(+), 0 deletions(-)
> >  rename Documentation/devicetree/bindings/mfd/{ => syscon}/aspeed-scu.txt (100%)
> >  rename Documentation/devicetree/bindings/mfd/{ => syscon}/atmel-gpbr.txt (100%)
> >  rename Documentation/devicetree/bindings/mfd/{ => syscon}/atmel-matrix.txt (100%)
> >  rename Documentation/devicetree/bindings/mfd/{ => syscon}/atmel-smc.txt (100%)
> >  rename Documentation/devicetree/bindings/mfd/{ => syscon}/qcom,tcsr.txt (100%)
> >  rename Documentation/devicetree/bindings/mfd/{ => syscon}/syscon.txt (100%)
> >  rename Documentation/devicetree/bindings/mfd/{ => syscon}/ti-keystone-devctrl.txt (100%)
> 
> I'm not so sure this is the right direction. syscon usage is pretty much 
> spread throughout the tree.

This patch was created based on my interpretation of Lee's feedback
here:

https://lkml.org/lkml/2016/11/18/650

Lee's next email in the chain poked Arnd for an opinion, but Arnd
didn't reply.

I don't mind. I moved these bindings separately so we could just drop
the patch if there was push-back. If we drop the whole idea I'll need
to apply a small fix to patch 5/6 to avoid creating the syscon
subdirectory.

Andrew

> 
> Rob
Lee Jones Dec. 13, 2016, 11:07 a.m. UTC | #3
On Tue, 13 Dec 2016, Andrew Jeffery wrote:

> On Mon, 2016-12-12 at 09:39 -0600, Rob Herring wrote:
> > On Tue, Dec 06, 2016 at 01:53:21PM +1100, Andrew Jeffery wrote:
> > > The use of syscons is growing, lets collate them in their own part of
> > > the bindings tree.
> > > 
> > > > > Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
> > > ---
> > >  Documentation/devicetree/bindings/mfd/{ => syscon}/aspeed-scu.txt         | 0
> > >  Documentation/devicetree/bindings/mfd/{ => syscon}/atmel-gpbr.txt         | 0
> > >  Documentation/devicetree/bindings/mfd/{ => syscon}/atmel-matrix.txt       | 0
> > >  Documentation/devicetree/bindings/mfd/{ => syscon}/atmel-smc.txt          | 0
> > >  Documentation/devicetree/bindings/mfd/{ => syscon}/qcom,tcsr.txt          | 0
> > >  Documentation/devicetree/bindings/mfd/{ => syscon}/syscon.txt             | 0
> > >  .../devicetree/bindings/mfd/{ => syscon}/ti-keystone-devctrl.txt          | 0
> > >  7 files changed, 0 insertions(+), 0 deletions(-)
> > >  rename Documentation/devicetree/bindings/mfd/{ => syscon}/aspeed-scu.txt (100%)
> > >  rename Documentation/devicetree/bindings/mfd/{ => syscon}/atmel-gpbr.txt (100%)
> > >  rename Documentation/devicetree/bindings/mfd/{ => syscon}/atmel-matrix.txt (100%)
> > >  rename Documentation/devicetree/bindings/mfd/{ => syscon}/atmel-smc.txt (100%)
> > >  rename Documentation/devicetree/bindings/mfd/{ => syscon}/qcom,tcsr.txt (100%)
> > >  rename Documentation/devicetree/bindings/mfd/{ => syscon}/syscon.txt (100%)
> > >  rename Documentation/devicetree/bindings/mfd/{ => syscon}/ti-keystone-devctrl.txt (100%)
> > 
> > I'm not so sure this is the right direction. syscon usage is pretty much 
> > spread throughout the tree.
> 
> This patch was created based on my interpretation of Lee's feedback
> here:
> 
> https://lkml.org/lkml/2016/11/18/650
> 
> Lee's next email in the chain poked Arnd for an opinion, but Arnd
> didn't reply.
> 
> I don't mind. I moved these bindings separately so we could just drop
> the patch if there was push-back. If we drop the whole idea I'll need
> to apply a small fix to patch 5/6 to avoid creating the syscon
> subdirectory.

The sub-directory is a good idea for drivers who are *solely* syscon
based.
Andrew Jeffery Dec. 13, 2016, 12:05 p.m. UTC | #4
On Tue, 2016-12-13 at 11:07 +0000, Lee Jones wrote:
> On Tue, 13 Dec 2016, Andrew Jeffery wrote:
> 
> > On Mon, 2016-12-12 at 09:39 -0600, Rob Herring wrote:
> > > On Tue, Dec 06, 2016 at 01:53:21PM +1100, Andrew Jeffery wrote:
> > > > The use of syscons is growing, lets collate them in their own part of
> > > > the bindings tree.
> > > > 
> > > > > > Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
> > > > 
> > > > ---
> > > >  Documentation/devicetree/bindings/mfd/{ => syscon}/aspeed-scu.txt         | 0
> > > >  Documentation/devicetree/bindings/mfd/{ => syscon}/atmel-gpbr.txt         | 0
> > > >  Documentation/devicetree/bindings/mfd/{ => syscon}/atmel-matrix.txt       | 0
> > > >  Documentation/devicetree/bindings/mfd/{ => syscon}/atmel-smc.txt          | 0
> > > >  Documentation/devicetree/bindings/mfd/{ => syscon}/qcom,tcsr.txt          | 0
> > > >  Documentation/devicetree/bindings/mfd/{ => syscon}/syscon.txt             | 0
> > > >  .../devicetree/bindings/mfd/{ => syscon}/ti-keystone-devctrl.txt          | 0
> > > >  7 files changed, 0 insertions(+), 0 deletions(-)
> > > >  rename Documentation/devicetree/bindings/mfd/{ => syscon}/aspeed-scu.txt (100%)
> > > >  rename Documentation/devicetree/bindings/mfd/{ => syscon}/atmel-gpbr.txt (100%)
> > > >  rename Documentation/devicetree/bindings/mfd/{ => syscon}/atmel-matrix.txt (100%)
> > > >  rename Documentation/devicetree/bindings/mfd/{ => syscon}/atmel-smc.txt (100%)
> > > >  rename Documentation/devicetree/bindings/mfd/{ => syscon}/qcom,tcsr.txt (100%)
> > > >  rename Documentation/devicetree/bindings/mfd/{ => syscon}/syscon.txt (100%)
> > > >  rename Documentation/devicetree/bindings/mfd/{ => syscon}/ti-keystone-devctrl.txt (100%)
> > > 
> > > I'm not so sure this is the right direction. syscon usage is pretty much 
> > > spread throughout the tree.
> > 
> > This patch was created based on my interpretation of Lee's feedback
> > here:
> > 
> > https://lkml.org/lkml/2016/11/18/650
> > 
> > Lee's next email in the chain poked Arnd for an opinion, but Arnd
> > didn't reply.
> > 
> > I don't mind. I moved these bindings separately so we could just drop
> > the patch if there was push-back. If we drop the whole idea I'll need
> > to apply a small fix to patch 5/6 to avoid creating the syscon
> > subdirectory.
> 
> The sub-directory is a good idea for drivers who are *solely* syscon
> based.
> 

Yes, I wasn't saying otherwise, just commenting on my motivation and
approach.

As far as I can tell all of the bindings I move here describe solely
syscon-based devices.

Cheers,

Andrew
Arnd Bergmann Dec. 13, 2016, 12:17 p.m. UTC | #5
On Tuesday, December 13, 2016 10:35:34 PM CET Andrew Jeffery wrote:
> On Tue, 2016-12-13 at 11:07 +0000, Lee Jones wrote:
> > On Tue, 13 Dec 2016, Andrew Jeffery wrote:
> > > On Mon, 2016-12-12 at 09:39 -0600, Rob Herring wrote:
> > > > On Tue, Dec 06, 2016 at 01:53:21PM +1100, Andrew Jeffery wrote:
> > > 
> > > Lee's next email in the chain poked Arnd for an opinion, but Arnd
> > > didn't reply.
> > > 
> > > I don't mind. I moved these bindings separately so we could just drop
> > > the patch if there was push-back. If we drop the whole idea I'll need
> > > to apply a small fix to patch 5/6 to avoid creating the syscon
> > > subdirectory.
> > 
> > The sub-directory is a good idea for drivers who are *solely* syscon
> > based.
> > 
> 
> Yes, I wasn't saying otherwise, just commenting on my motivation and
> approach.
> 
> As far as I can tell all of the bindings I move here describe solely
> syscon-based devices.
> 

But do we know which ones they are?

In principle, any syscon device node can have a specialized driver
exporting an interface, the bindings always allow it to be done
one way or the other, and we may change the driver or run a different
OS that has decided differently.

	Arnd
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Andrew Jeffery Dec. 13, 2016, 12:39 p.m. UTC | #6
On Tue, 2016-12-13 at 13:17 +0100, Arnd Bergmann wrote:
> On Tuesday, December 13, 2016 10:35:34 PM CET Andrew Jeffery wrote:
> > On Tue, 2016-12-13 at 11:07 +0000, Lee Jones wrote:
> > > On Tue, 13 Dec 2016, Andrew Jeffery wrote:
> > > > On Mon, 2016-12-12 at 09:39 -0600, Rob Herring wrote:
> > > > > On Tue, Dec 06, 2016 at 01:53:21PM +1100, Andrew Jeffery wrote:
> > > > 
> > > > Lee's next email in the chain poked Arnd for an opinion, but Arnd
> > > > didn't reply.
> > > > 
> > > > I don't mind. I moved these bindings separately so we could just drop
> > > > the patch if there was push-back. If we drop the whole idea I'll need
> > > > to apply a small fix to patch 5/6 to avoid creating the syscon
> > > > subdirectory.
> > > 
> > > The sub-directory is a good idea for drivers who are *solely* syscon
> > > based.
> > > 
> > 
> > Yes, I wasn't saying otherwise, just commenting on my motivation and
> > approach.
> > 
> > As far as I can tell all of the bindings I move here describe solely
> > syscon-based devices.
> > 
> 
> But do we know which ones they are?
> 
> In principle, any syscon device node can have a specialized driver
> exporting an interface, the bindings always allow it to be done
> one way or the other, and we may change the driver or run a different
> OS that has decided differently.
> 

Right; for the Linux case there are currently no driver implementations
that match on the compatible strings in the documents I moved (save for
qcom,tcsr, except that it's the qcom,gsbi compatible driver parsing a
phandle to the qcom,tcsr syscon node).

However, I can't guarantee the solely-syscon property for other
operating systems. Given that, it now looks to me like we shouldn't
have such a directory at all.

Cheers,

Andrew
diff mbox

Patch

diff --git a/Documentation/devicetree/bindings/mfd/aspeed-scu.txt b/Documentation/devicetree/bindings/mfd/syscon/aspeed-scu.txt
similarity index 100%
rename from Documentation/devicetree/bindings/mfd/aspeed-scu.txt
rename to Documentation/devicetree/bindings/mfd/syscon/aspeed-scu.txt
diff --git a/Documentation/devicetree/bindings/mfd/atmel-gpbr.txt b/Documentation/devicetree/bindings/mfd/syscon/atmel-gpbr.txt
similarity index 100%
rename from Documentation/devicetree/bindings/mfd/atmel-gpbr.txt
rename to Documentation/devicetree/bindings/mfd/syscon/atmel-gpbr.txt
diff --git a/Documentation/devicetree/bindings/mfd/atmel-matrix.txt b/Documentation/devicetree/bindings/mfd/syscon/atmel-matrix.txt
similarity index 100%
rename from Documentation/devicetree/bindings/mfd/atmel-matrix.txt
rename to Documentation/devicetree/bindings/mfd/syscon/atmel-matrix.txt
diff --git a/Documentation/devicetree/bindings/mfd/atmel-smc.txt b/Documentation/devicetree/bindings/mfd/syscon/atmel-smc.txt
similarity index 100%
rename from Documentation/devicetree/bindings/mfd/atmel-smc.txt
rename to Documentation/devicetree/bindings/mfd/syscon/atmel-smc.txt
diff --git a/Documentation/devicetree/bindings/mfd/qcom,tcsr.txt b/Documentation/devicetree/bindings/mfd/syscon/qcom,tcsr.txt
similarity index 100%
rename from Documentation/devicetree/bindings/mfd/qcom,tcsr.txt
rename to Documentation/devicetree/bindings/mfd/syscon/qcom,tcsr.txt
diff --git a/Documentation/devicetree/bindings/mfd/syscon.txt b/Documentation/devicetree/bindings/mfd/syscon/syscon.txt
similarity index 100%
rename from Documentation/devicetree/bindings/mfd/syscon.txt
rename to Documentation/devicetree/bindings/mfd/syscon/syscon.txt
diff --git a/Documentation/devicetree/bindings/mfd/ti-keystone-devctrl.txt b/Documentation/devicetree/bindings/mfd/syscon/ti-keystone-devctrl.txt
similarity index 100%
rename from Documentation/devicetree/bindings/mfd/ti-keystone-devctrl.txt
rename to Documentation/devicetree/bindings/mfd/syscon/ti-keystone-devctrl.txt