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[1/3] dt-bindings: pwm: Add MediaTek display PWM bindings

Message ID 1464597712-5399-2-git-send-email-weiqing.kong@mediatek.com (mailing list archive)
State New, archived
Headers show

Commit Message

Weiqing Kong May 30, 2016, 8:41 a.m. UTC
Add MT2701 compatible string.

Signed-off-by: Weiqing Kong <weiqing.kong@mediatek.com>
---
 Documentation/devicetree/bindings/pwm/pwm-mtk-disp.txt | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

Comments

Rob Herring June 2, 2016, 10:45 p.m. UTC | #1
On Mon, May 30, 2016 at 04:41:50PM +0800, Weiqing Kong wrote:
> Add MT2701 compatible string.
> 
> Signed-off-by: Weiqing Kong <weiqing.kong@mediatek.com>
> ---
>  Documentation/devicetree/bindings/pwm/pwm-mtk-disp.txt | 5 +++--
>  1 file changed, 3 insertions(+), 2 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/pwm/pwm-mtk-disp.txt b/Documentation/devicetree/bindings/pwm/pwm-mtk-disp.txt
> index f8f59ba..f2f2fa9 100644
> --- a/Documentation/devicetree/bindings/pwm/pwm-mtk-disp.txt
> +++ b/Documentation/devicetree/bindings/pwm/pwm-mtk-disp.txt
> @@ -1,9 +1,10 @@
>  MediaTek display PWM controller
>  
>  Required properties:
> - - compatible: should be "mediatek,<name>-disp-pwm":
> -   - "mediatek,mt8173-disp-pwm": found on mt8173 SoC.
> + - compatible: should be like these:
> +   - "mediatek,mt2701-disp-bls": found on mt2701 SoC.

Why bls instead of pwm?

>     - "mediatek,mt6595-disp-pwm": found on mt6595 SoC.
> +   - "mediatek,mt8173-disp-pwm": found on mt8173 SoC.
>   - reg: physical base address and length of the controller's registers.
>   - #pwm-cells: must be 2. See pwm.txt in this directory for a description of
>     the cell format.
> -- 
> 1.8.1.1.dirty
>
Weiqing Kong June 3, 2016, 6:45 a.m. UTC | #2
On Thu, 2016-06-02 at 17:45 -0500, Rob Herring wrote:
> On Mon, May 30, 2016 at 04:41:50PM +0800, Weiqing Kong wrote:
> > Add MT2701 compatible string.
> > 
> > Signed-off-by: Weiqing Kong <weiqing.kong@mediatek.com>
> > ---
> >  Documentation/devicetree/bindings/pwm/pwm-mtk-disp.txt | 5 +++--
> >  1 file changed, 3 insertions(+), 2 deletions(-)
> > 
> > diff --git a/Documentation/devicetree/bindings/pwm/pwm-mtk-disp.txt b/Documentation/devicetree/bindings/pwm/pwm-mtk-disp.txt
> > index f8f59ba..f2f2fa9 100644
> > --- a/Documentation/devicetree/bindings/pwm/pwm-mtk-disp.txt
> > +++ b/Documentation/devicetree/bindings/pwm/pwm-mtk-disp.txt
> > @@ -1,9 +1,10 @@
> >  MediaTek display PWM controller
> >  
> >  Required properties:
> > - - compatible: should be "mediatek,<name>-disp-pwm":
> > -   - "mediatek,mt8173-disp-pwm": found on mt8173 SoC.
> > + - compatible: should be like these:
> > +   - "mediatek,mt2701-disp-bls": found on mt2701 SoC.
> 
> Why bls instead of pwm?

In mt6595/mt8173, we have a hardware module named pwm.
In mt2701, we have bls hardware module which includes disp pwm function,
so we named it mt2701-disp-bls rather than mt2701-disp-pwm in order to
match with hardware spec.
thanks.

> 
> >     - "mediatek,mt6595-disp-pwm": found on mt6595 SoC.
> > +   - "mediatek,mt8173-disp-pwm": found on mt8173 SoC.
> >   - reg: physical base address and length of the controller's registers.
> >   - #pwm-cells: must be 2. See pwm.txt in this directory for a description of
> >     the cell format.
> > -- 
> > 1.8.1.1.dirty
> >
Matthias Brugger June 3, 2016, 3:03 p.m. UTC | #3
On 03/06/16 08:45, weiqing kong wrote:
> On Thu, 2016-06-02 at 17:45 -0500, Rob Herring wrote:
>> On Mon, May 30, 2016 at 04:41:50PM +0800, Weiqing Kong wrote:
>>> Add MT2701 compatible string.
>>>
>>> Signed-off-by: Weiqing Kong <weiqing.kong@mediatek.com>
>>> ---
>>>   Documentation/devicetree/bindings/pwm/pwm-mtk-disp.txt | 5 +++--
>>>   1 file changed, 3 insertions(+), 2 deletions(-)
>>>
>>> diff --git a/Documentation/devicetree/bindings/pwm/pwm-mtk-disp.txt b/Documentation/devicetree/bindings/pwm/pwm-mtk-disp.txt
>>> index f8f59ba..f2f2fa9 100644
>>> --- a/Documentation/devicetree/bindings/pwm/pwm-mtk-disp.txt
>>> +++ b/Documentation/devicetree/bindings/pwm/pwm-mtk-disp.txt
>>> @@ -1,9 +1,10 @@
>>>   MediaTek display PWM controller
>>>
>>>   Required properties:
>>> - - compatible: should be "mediatek,<name>-disp-pwm":
>>> -   - "mediatek,mt8173-disp-pwm": found on mt8173 SoC.
>>> + - compatible: should be like these:
>>> +   - "mediatek,mt2701-disp-bls": found on mt2701 SoC.
>>
>> Why bls instead of pwm?
>
> In mt6595/mt8173, we have a hardware module named pwm.
> In mt2701, we have bls hardware module which includes disp pwm function,
> so we named it mt2701-disp-bls rather than mt2701-disp-pwm in order to
> match with hardware spec.
> thanks.
>

 From what I understand pwm module and disp pwm in mt6589/mt8173 is 
independent from the disp pwm. Actually the disp pwm in mt6589 is part 
of the bls module, so this should me mediatek,mt2701-disp-pwm as well

Thanks,
Matthias

>>
>>>      - "mediatek,mt6595-disp-pwm": found on mt6595 SoC.
>>> +   - "mediatek,mt8173-disp-pwm": found on mt8173 SoC.
>>>    - reg: physical base address and length of the controller's registers.
>>>    - #pwm-cells: must be 2. See pwm.txt in this directory for a description of
>>>      the cell format.
>>> --
>>> 1.8.1.1.dirty
>>>
>
>
Weiqing Kong June 8, 2016, 6:48 a.m. UTC | #4
On Fri, 2016-06-03 at 17:03 +0200, Matthias Brugger wrote:
> 
> On 03/06/16 08:45, weiqing kong wrote:
> > On Thu, 2016-06-02 at 17:45 -0500, Rob Herring wrote:
> >> On Mon, May 30, 2016 at 04:41:50PM +0800, Weiqing Kong wrote:
> >>> Add MT2701 compatible string.
> >>>
> >>> Signed-off-by: Weiqing Kong <weiqing.kong@mediatek.com>
> >>> ---
> >>>   Documentation/devicetree/bindings/pwm/pwm-mtk-disp.txt | 5 +++--
> >>>   1 file changed, 3 insertions(+), 2 deletions(-)
> >>>
> >>> diff --git a/Documentation/devicetree/bindings/pwm/pwm-mtk-disp.txt b/Documentation/devicetree/bindings/pwm/pwm-mtk-disp.txt
> >>> index f8f59ba..f2f2fa9 100644
> >>> --- a/Documentation/devicetree/bindings/pwm/pwm-mtk-disp.txt
> >>> +++ b/Documentation/devicetree/bindings/pwm/pwm-mtk-disp.txt
> >>> @@ -1,9 +1,10 @@
> >>>   MediaTek display PWM controller
> >>>
> >>>   Required properties:
> >>> - - compatible: should be "mediatek,<name>-disp-pwm":
> >>> -   - "mediatek,mt8173-disp-pwm": found on mt8173 SoC.
> >>> + - compatible: should be like these:
> >>> +   - "mediatek,mt2701-disp-bls": found on mt2701 SoC.
> >>
> >> Why bls instead of pwm?
> >
> > In mt6595/mt8173, we have a hardware module named pwm.
> > In mt2701, we have bls hardware module which includes disp pwm function,
> > so we named it mt2701-disp-bls rather than mt2701-disp-pwm in order to
> > match with hardware spec.
> > thanks.
> >
> 
>  From what I understand pwm module and disp pwm in mt6589/mt8173 is 
> independent from the disp pwm. Actually the disp pwm in mt6589 is part 
> of the bls module, so this should me mediatek,mt2701-disp-pwm as well
> 
> Thanks,
> Matthias
> 

ok, I will modify it into mediatek,mt2701-disp-pwm. 

> >>
> >>>      - "mediatek,mt6595-disp-pwm": found on mt6595 SoC.
> >>> +   - "mediatek,mt8173-disp-pwm": found on mt8173 SoC.
> >>>    - reg: physical base address and length of the controller's registers.
> >>>    - #pwm-cells: must be 2. See pwm.txt in this directory for a description of
> >>>      the cell format.
> >>> --
> >>> 1.8.1.1.dirty
> >>>
> >
> >
diff mbox

Patch

diff --git a/Documentation/devicetree/bindings/pwm/pwm-mtk-disp.txt b/Documentation/devicetree/bindings/pwm/pwm-mtk-disp.txt
index f8f59ba..f2f2fa9 100644
--- a/Documentation/devicetree/bindings/pwm/pwm-mtk-disp.txt
+++ b/Documentation/devicetree/bindings/pwm/pwm-mtk-disp.txt
@@ -1,9 +1,10 @@ 
 MediaTek display PWM controller
 
 Required properties:
- - compatible: should be "mediatek,<name>-disp-pwm":
-   - "mediatek,mt8173-disp-pwm": found on mt8173 SoC.
+ - compatible: should be like these:
+   - "mediatek,mt2701-disp-bls": found on mt2701 SoC.
    - "mediatek,mt6595-disp-pwm": found on mt6595 SoC.
+   - "mediatek,mt8173-disp-pwm": found on mt8173 SoC.
  - reg: physical base address and length of the controller's registers.
  - #pwm-cells: must be 2. See pwm.txt in this directory for a description of
    the cell format.