diff mbox series

[1/3] dt-bindings: clock: sunxi: Export PLL_VIDEO_2X and PLL_MIPI

Message ID 20241215053639.738890-2-anarsoul@gmail.com (mailing list archive)
State Changes Requested, archived
Headers show
Series arm64: allwinner: a64: fix video output on Pinebook | expand

Commit Message

Vasily Khoruzhick Dec. 15, 2024, 5:34 a.m. UTC
These will be used to explicitly select TCON0 clock parent in dts

Fixes: ca1170b69968 ("clk: sunxi-ng: a64: force select PLL_MIPI in TCON0 mux")
Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
---
 drivers/clk/sunxi-ng/ccu-sun50i-a64.h      | 2 --
 include/dt-bindings/clock/sun50i-a64-ccu.h | 2 ++
 2 files changed, 2 insertions(+), 2 deletions(-)

Comments

Dragan Simic Dec. 15, 2024, 7:55 a.m. UTC | #1
Hello Vasily,

On 2024-12-15 06:34, Vasily Khoruzhick wrote:
> These will be used to explicitly select TCON0 clock parent in dts
> 
> Fixes: ca1170b69968 ("clk: sunxi-ng: a64: force select PLL_MIPI in 
> TCON0 mux")
> Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>

Looking good to me, as a preparatory patch.  Please feel free
to include

Reviewed-by: Dragan Simic <dsimic@manjaro.org>

> ---
>  drivers/clk/sunxi-ng/ccu-sun50i-a64.h      | 2 --
>  include/dt-bindings/clock/sun50i-a64-ccu.h | 2 ++
>  2 files changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/clk/sunxi-ng/ccu-sun50i-a64.h
> b/drivers/clk/sunxi-ng/ccu-sun50i-a64.h
> index a8c11c0b4e06..dfba88a5ad0f 100644
> --- a/drivers/clk/sunxi-ng/ccu-sun50i-a64.h
> +++ b/drivers/clk/sunxi-ng/ccu-sun50i-a64.h
> @@ -21,7 +21,6 @@
> 
>  /* PLL_VIDEO0 exported for HDMI PHY */
> 
> -#define CLK_PLL_VIDEO0_2X		8
>  #define CLK_PLL_VE			9
>  #define CLK_PLL_DDR0			10
> 
> @@ -32,7 +31,6 @@
>  #define CLK_PLL_PERIPH1_2X		14
>  #define CLK_PLL_VIDEO1			15
>  #define CLK_PLL_GPU			16
> -#define CLK_PLL_MIPI			17
>  #define CLK_PLL_HSIC			18
>  #define CLK_PLL_DE			19
>  #define CLK_PLL_DDR1			20
> diff --git a/include/dt-bindings/clock/sun50i-a64-ccu.h
> b/include/dt-bindings/clock/sun50i-a64-ccu.h
> index 175892189e9d..4f220ea7a23c 100644
> --- a/include/dt-bindings/clock/sun50i-a64-ccu.h
> +++ b/include/dt-bindings/clock/sun50i-a64-ccu.h
> @@ -44,7 +44,9 @@
>  #define _DT_BINDINGS_CLK_SUN50I_A64_H_
> 
>  #define CLK_PLL_VIDEO0		7
> +#define CLK_PLL_VIDEO0_2X	8
>  #define CLK_PLL_PERIPH0		11
> +#define CLK_PLL_MIPI		17
> 
>  #define CLK_CPUX		21
>  #define CLK_BUS_MIPI_DSI	28
Krzysztof Kozlowski Dec. 17, 2024, 7:33 a.m. UTC | #2
On Sat, Dec 14, 2024 at 09:34:57PM -0800, Vasily Khoruzhick wrote:
> These will be used to explicitly select TCON0 clock parent in dts
> 
> Fixes: ca1170b69968 ("clk: sunxi-ng: a64: force select PLL_MIPI in TCON0 mux")
> Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
> ---
>  drivers/clk/sunxi-ng/ccu-sun50i-a64.h      | 2 --
>  include/dt-bindings/clock/sun50i-a64-ccu.h | 2 +

You cannot combine these changes.

Please run scripts/checkpatch.pl and fix reported warnings. Then please
run 'scripts/checkpatch.pl --strict' and (probably) fix more warnings.
Some warnings can be ignored, especially from --strict run, but the code
here looks like it needs a fix. Feel free to get in touch if the warning
is not clear.

Best regards,
Krzysztof
Vasily Khoruzhick Dec. 17, 2024, 6 p.m. UTC | #3
On Mon, Dec 16, 2024 at 11:33 PM Krzysztof Kozlowski <krzk@kernel.org> wrote:
>
> On Sat, Dec 14, 2024 at 09:34:57PM -0800, Vasily Khoruzhick wrote:
> > These will be used to explicitly select TCON0 clock parent in dts
> >
> > Fixes: ca1170b69968 ("clk: sunxi-ng: a64: force select PLL_MIPI in TCON0 mux")
> > Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
> > ---
> >  drivers/clk/sunxi-ng/ccu-sun50i-a64.h      | 2 --
> >  include/dt-bindings/clock/sun50i-a64-ccu.h | 2 +

Hi Krzysztof,

> You cannot combine these changes.

The patch basically moves defines out from ccu-sun50i-a64.h to
sun50i-a64-ccu.h. How do I split the change without introducing
compilation failure?

> Please run scripts/checkpatch.pl and fix reported warnings. Then please
> run 'scripts/checkpatch.pl --strict' and (probably) fix more warnings.
> Some warnings can be ignored, especially from --strict run, but the code
> here looks like it needs a fix. Feel free to get in touch if the warning
> is not clear.

Yeah, it is not clear what do you want me to do, assuming the previous
similar change to sun50i-a64-ccu.h did essentially the same, see
71b597ef5d46a326fb0d5cbfc1c6ff1d73cdc7f9

Regards,
Vasily

> Best regards,
> Krzysztof
>
Andre Przywara Dec. 17, 2024, 9:15 p.m. UTC | #4
On Tue, 17 Dec 2024 10:00:45 -0800
Vasily Khoruzhick <anarsoul@gmail.com> wrote:

Hi,

> On Mon, Dec 16, 2024 at 11:33 PM Krzysztof Kozlowski <krzk@kernel.org> wrote:
> >
> > On Sat, Dec 14, 2024 at 09:34:57PM -0800, Vasily Khoruzhick wrote:  
> > > These will be used to explicitly select TCON0 clock parent in dts
> > >
> > > Fixes: ca1170b69968 ("clk: sunxi-ng: a64: force select PLL_MIPI in TCON0 mux")
> > > Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
> > > ---
> > >  drivers/clk/sunxi-ng/ccu-sun50i-a64.h      | 2 --
> > >  include/dt-bindings/clock/sun50i-a64-ccu.h | 2 +  
> 
> Hi Krzysztof,
> 
> > You cannot combine these changes.  
> 
> The patch basically moves defines out from ccu-sun50i-a64.h to
> sun50i-a64-ccu.h. How do I split the change without introducing
> compilation failure?

You can just have the binding part first, adding the (same) definition
to the binding headers. As long as the #define's are not conflicting,
this is fine.
Then remove the now redundant definitions in the kernel headers, with a
subsequent patch.

Cheers,
Andre


> 
> > Please run scripts/checkpatch.pl and fix reported warnings. Then please
> > run 'scripts/checkpatch.pl --strict' and (probably) fix more warnings.
> > Some warnings can be ignored, especially from --strict run, but the code
> > here looks like it needs a fix. Feel free to get in touch if the warning
> > is not clear.  
> 
> Yeah, it is not clear what do you want me to do, assuming the previous
> similar change to sun50i-a64-ccu.h did essentially the same, see
> 71b597ef5d46a326fb0d5cbfc1c6ff1d73cdc7f9
> 
> Regards,
> Vasily
> 
> > Best regards,
> > Krzysztof
> >  
>
Dragan Simic Dec. 17, 2024, 10:02 p.m. UTC | #5
Hello all,

On 2024-12-17 22:15, Andre Przywara wrote:
> On Tue, 17 Dec 2024 10:00:45 -0800
> Vasily Khoruzhick <anarsoul@gmail.com> wrote:
>> On Mon, Dec 16, 2024 at 11:33 PM Krzysztof Kozlowski <krzk@kernel.org> 
>> wrote:
>> >
>> > On Sat, Dec 14, 2024 at 09:34:57PM -0800, Vasily Khoruzhick wrote:
>> > > These will be used to explicitly select TCON0 clock parent in dts
>> > >
>> > > Fixes: ca1170b69968 ("clk: sunxi-ng: a64: force select PLL_MIPI in TCON0 mux")
>> > > Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
>> > > ---
>> > >  drivers/clk/sunxi-ng/ccu-sun50i-a64.h      | 2 --
>> > >  include/dt-bindings/clock/sun50i-a64-ccu.h | 2 +
>> 
>> > You cannot combine these changes.
>> 
>> The patch basically moves defines out from ccu-sun50i-a64.h to
>> sun50i-a64-ccu.h. How do I split the change without introducing
>> compilation failure?
> 
> You can just have the binding part first, adding the (same) definition
> to the binding headers. As long as the #define's are not conflicting,
> this is fine.
> Then remove the now redundant definitions in the kernel headers, with a
> subsequent patch.

Yes, that would be a way to make it formally correct, but also much
less readable and understandable later, as part of the source code
repository.  FWIW, I find this to be an example of the form being
more important than the actual function.

>> > Please run scripts/checkpatch.pl and fix reported warnings. Then please
>> > run 'scripts/checkpatch.pl --strict' and (probably) fix more warnings.
>> > Some warnings can be ignored, especially from --strict run, but the code
>> > here looks like it needs a fix. Feel free to get in touch if the warning
>> > is not clear.
>> 
>> Yeah, it is not clear what do you want me to do, assuming the previous
>> similar change to sun50i-a64-ccu.h did essentially the same, see
>> 71b597ef5d46a326fb0d5cbfc1c6ff1d73cdc7f9
Andre Przywara Dec. 18, 2024, 1:38 a.m. UTC | #6
On Tue, 17 Dec 2024 23:02:43 +0100
Dragan Simic <dsimic@manjaro.org> wrote:

Hi Dragan,

> Hello all,
> 
> On 2024-12-17 22:15, Andre Przywara wrote:
> > On Tue, 17 Dec 2024 10:00:45 -0800
> > Vasily Khoruzhick <anarsoul@gmail.com> wrote:  
> >> On Mon, Dec 16, 2024 at 11:33 PM Krzysztof Kozlowski <krzk@kernel.org> 
> >> wrote:  
> >> >
> >> > On Sat, Dec 14, 2024 at 09:34:57PM -0800, Vasily Khoruzhick wrote:  
> >> > > These will be used to explicitly select TCON0 clock parent in dts
> >> > >
> >> > > Fixes: ca1170b69968 ("clk: sunxi-ng: a64: force select PLL_MIPI in TCON0 mux")
> >> > > Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
> >> > > ---
> >> > >  drivers/clk/sunxi-ng/ccu-sun50i-a64.h      | 2 --
> >> > >  include/dt-bindings/clock/sun50i-a64-ccu.h | 2 +  
> >>   
> >> > You cannot combine these changes.  
> >> 
> >> The patch basically moves defines out from ccu-sun50i-a64.h to
> >> sun50i-a64-ccu.h. How do I split the change without introducing
> >> compilation failure?  
> > 
> > You can just have the binding part first, adding the (same) definition
> > to the binding headers. As long as the #define's are not conflicting,
> > this is fine.
> > Then remove the now redundant definitions in the kernel headers, with a
> > subsequent patch.  
> 
> Yes, that would be a way to make it formally correct, but also much
> less readable and understandable later, as part of the source code
> repository.  FWIW, I find this to be an example of the form being
> more important than the actual function.

Not sure I understand your last sentence, exactly, but what
Krzysztof pointed out is that one part (the header change in
include/dt-bindings) is a DT binding patch, so part of a spec, if you
like, the other is Linux *code*. There is the DT rebasing repo, which
cherry-picks DT patches, so they form a separate history there, and
Linux code has no place in there. U-Boot for instance pull this
repo now on a regular basis. So keeping those things strictly separate
is really important here.

Cheers,
Andre.

> >> > Please run scripts/checkpatch.pl and fix reported warnings. Then please
> >> > run 'scripts/checkpatch.pl --strict' and (probably) fix more warnings.
> >> > Some warnings can be ignored, especially from --strict run, but the code
> >> > here looks like it needs a fix. Feel free to get in touch if the warning
> >> > is not clear.  
> >> 
> >> Yeah, it is not clear what do you want me to do, assuming the previous
> >> similar change to sun50i-a64-ccu.h did essentially the same, see
> >> 71b597ef5d46a326fb0d5cbfc1c6ff1d73cdc7f9  
>
Dragan Simic Dec. 18, 2024, 5:19 a.m. UTC | #7
Hello Andre,

On 2024-12-18 02:38, Andre Przywara wrote:
> On Tue, 17 Dec 2024 23:02:43 +0100
> Dragan Simic <dsimic@manjaro.org> wrote:
>> On 2024-12-17 22:15, Andre Przywara wrote:
>> > On Tue, 17 Dec 2024 10:00:45 -0800
>> > Vasily Khoruzhick <anarsoul@gmail.com> wrote:
>> >> On Mon, Dec 16, 2024 at 11:33 PM Krzysztof Kozlowski <krzk@kernel.org>
>> >> wrote:
>> >> >
>> >> > On Sat, Dec 14, 2024 at 09:34:57PM -0800, Vasily Khoruzhick wrote:
>> >> > > These will be used to explicitly select TCON0 clock parent in dts
>> >> > >
>> >> > > Fixes: ca1170b69968 ("clk: sunxi-ng: a64: force select PLL_MIPI in TCON0 mux")
>> >> > > Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
>> >> > > ---
>> >> > >  drivers/clk/sunxi-ng/ccu-sun50i-a64.h      | 2 --
>> >> > >  include/dt-bindings/clock/sun50i-a64-ccu.h | 2 +
>> >>
>> >> > You cannot combine these changes.
>> >>
>> >> The patch basically moves defines out from ccu-sun50i-a64.h to
>> >> sun50i-a64-ccu.h. How do I split the change without introducing
>> >> compilation failure?
>> >
>> > You can just have the binding part first, adding the (same) definition
>> > to the binding headers. As long as the #define's are not conflicting,
>> > this is fine.
>> > Then remove the now redundant definitions in the kernel headers, with a
>> > subsequent patch.
>> 
>> Yes, that would be a way to make it formally correct, but also much
>> less readable and understandable later, as part of the source code
>> repository.  FWIW, I find this to be an example of the form being
>> more important than the actual function.
> 
> Not sure I understand your last sentence, exactly,

Ah, sorry, I also saw the need to expand that sentence a bit, but only
after I had already sent my message. :/

> but what Krzysztof pointed out is that one part (the header change in
> include/dt-bindings) is a DT binding patch, so part of a spec, if you
> like, the other is Linux *code*. There is the DT rebasing repo, which
> cherry-picks DT patches, so they form a separate history there, and
> Linux code has no place in there. U-Boot for instance pull this
> repo now on a regular basis. So keeping those things strictly separate
> is really important here.

Thanks a lot for your detailed explanation and for reminding me about
the DT rebasing repository. [*]  I forgot about it for a moment, despite
being active in U-Boot development when the repository was introduced,
so yes, you're right that we're now in need to keep the bindings and the
kernel code separate in patches.

However, I can't stop myself from noticing that the way Krzysztof 
replied
left a lot to be desired when it comes to friendliness in general.  Such
an approach is probably what contributed to me forgetting about the DT
rebasing repository for a moment.

[*] 
https://git.kernel.org/pub/scm/linux/kernel/git/devicetree/devicetree-rebasing.git/

>> >> > Please run scripts/checkpatch.pl and fix reported warnings. Then please
>> >> > run 'scripts/checkpatch.pl --strict' and (probably) fix more warnings.
>> >> > Some warnings can be ignored, especially from --strict run, but the code
>> >> > here looks like it needs a fix. Feel free to get in touch if the warning
>> >> > is not clear.
>> >>
>> >> Yeah, it is not clear what do you want me to do, assuming the previous
>> >> similar change to sun50i-a64-ccu.h did essentially the same, see
>> >> 71b597ef5d46a326fb0d5cbfc1c6ff1d73cdc7f9
Vasily Khoruzhick Dec. 18, 2024, 6:35 a.m. UTC | #8
On Tue, Dec 17, 2024 at 1:15 PM Andre Przywara <andre.przywara@arm.com> wrote:
>
> On Tue, 17 Dec 2024 10:00:45 -0800
> Vasily Khoruzhick <anarsoul@gmail.com> wrote:
>
> Hi,
>
> > On Mon, Dec 16, 2024 at 11:33 PM Krzysztof Kozlowski <krzk@kernel.org> wrote:
> > >
> > > On Sat, Dec 14, 2024 at 09:34:57PM -0800, Vasily Khoruzhick wrote:
> > > > These will be used to explicitly select TCON0 clock parent in dts
> > > >
> > > > Fixes: ca1170b69968 ("clk: sunxi-ng: a64: force select PLL_MIPI in TCON0 mux")
> > > > Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
> > > > ---
> > > >  drivers/clk/sunxi-ng/ccu-sun50i-a64.h      | 2 --
> > > >  include/dt-bindings/clock/sun50i-a64-ccu.h | 2 +
> >
> > Hi Krzysztof,
> >
> > > You cannot combine these changes.
> >
> > The patch basically moves defines out from ccu-sun50i-a64.h to
> > sun50i-a64-ccu.h. How do I split the change without introducing
> > compilation failure?
>
> You can just have the binding part first, adding the (same) definition
> to the binding headers. As long as the #define's are not conflicting,
> this is fine.
> Then remove the now redundant definitions in the kernel headers, with a
> subsequent patch.

Thanks for the suggestion! I'll address it in v2.
diff mbox series

Patch

diff --git a/drivers/clk/sunxi-ng/ccu-sun50i-a64.h b/drivers/clk/sunxi-ng/ccu-sun50i-a64.h
index a8c11c0b4e06..dfba88a5ad0f 100644
--- a/drivers/clk/sunxi-ng/ccu-sun50i-a64.h
+++ b/drivers/clk/sunxi-ng/ccu-sun50i-a64.h
@@ -21,7 +21,6 @@ 
 
 /* PLL_VIDEO0 exported for HDMI PHY */
 
-#define CLK_PLL_VIDEO0_2X		8
 #define CLK_PLL_VE			9
 #define CLK_PLL_DDR0			10
 
@@ -32,7 +31,6 @@ 
 #define CLK_PLL_PERIPH1_2X		14
 #define CLK_PLL_VIDEO1			15
 #define CLK_PLL_GPU			16
-#define CLK_PLL_MIPI			17
 #define CLK_PLL_HSIC			18
 #define CLK_PLL_DE			19
 #define CLK_PLL_DDR1			20
diff --git a/include/dt-bindings/clock/sun50i-a64-ccu.h b/include/dt-bindings/clock/sun50i-a64-ccu.h
index 175892189e9d..4f220ea7a23c 100644
--- a/include/dt-bindings/clock/sun50i-a64-ccu.h
+++ b/include/dt-bindings/clock/sun50i-a64-ccu.h
@@ -44,7 +44,9 @@ 
 #define _DT_BINDINGS_CLK_SUN50I_A64_H_
 
 #define CLK_PLL_VIDEO0		7
+#define CLK_PLL_VIDEO0_2X	8
 #define CLK_PLL_PERIPH0		11
+#define CLK_PLL_MIPI		17
 
 #define CLK_CPUX		21
 #define CLK_BUS_MIPI_DSI	28