diff mbox series

[v4,4/4] arm64: dts: mt8192: add infracfg_rst node

Message ID 20200817030324.5690-5-crystal.guo@mediatek.com (mailing list archive)
State New, archived
Headers show
Series introduce TI reset controller for MT8192 SoC | expand

Commit Message

Crystal Guo Aug. 17, 2020, 3:03 a.m. UTC 
add infracfg_rst node which is for MT8192 platform

Signed-off-by: Crystal Guo <crystal.guo@mediatek.com>
---
 arch/arm64/boot/dts/mediatek/mt8192.dtsi | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

Comments

Suman Anna Sept. 2, 2020, 11:29 p.m. UTC | #1 
Hi Crystal,

On 8/16/20 10:03 PM, Crystal Guo wrote:
> add infracfg_rst node which is for MT8192 platform
> 
> Signed-off-by: Crystal Guo <crystal.guo@mediatek.com>

I understand you are posting these together for complete reference, but driver
subsystem maintainers typically don't pick dts patches. In anycase, can you
clarify if your registers are self-clearing registers?

regards
Suman

> ---
>  arch/arm64/boot/dts/mediatek/mt8192.dtsi | 11 ++++++++++-
>  1 file changed, 10 insertions(+), 1 deletion(-)
> 
> diff --git a/arch/arm64/boot/dts/mediatek/mt8192.dtsi b/arch/arm64/boot/dts/mediatek/mt8192.dtsi
> index 931e1ca17220..a0cb9904706b 100644
> --- a/arch/arm64/boot/dts/mediatek/mt8192.dtsi
> +++ b/arch/arm64/boot/dts/mediatek/mt8192.dtsi
> @@ -10,6 +10,7 @@
>  #include <dt-bindings/interrupt-controller/irq.h>
>  #include <dt-bindings/pinctrl/mt8192-pinfunc.h>
>  #include <dt-bindings/power/mt8192-power.h>
> +#include <dt-bindings/reset/ti-syscon.h>
>  
>  / {
>  	compatible = "mediatek,mt8192";
> @@ -219,9 +220,17 @@
>  		};
>  
>  		infracfg: infracfg@10001000 {
> -			compatible = "mediatek,mt8192-infracfg", "syscon";
> +			compatible = "mediatek,mt8192-infracfg", "syscon", "simple-mfd";
>  			reg = <0 0x10001000 0 0x1000>;
>  			#clock-cells = <1>;
> +
> +			infracfg_rst: reset-controller {
> +				compatible = "mediatek,infra-reset", "ti,syscon-reset";
> +				#reset-cells = <1>;
> +				ti,reset-bits = <
> +					0x140 15 0x144 15 0 0 (ASSERT_SET | DEASSERT_SET | STATUS_NONE) /* 0: pcie */
> +				>;
> +			};
>  		};
>  
>  		pericfg: pericfg@10003000 {
>
Crystal Guo Sept. 8, 2020, 1:26 p.m. UTC | #2 
On Thu, 2020-09-03 at 07:29 +0800, Suman Anna wrote:
> Hi Crystal,
> 
> On 8/16/20 10:03 PM, Crystal Guo wrote:
> > add infracfg_rst node which is for MT8192 platform
> > 
> > Signed-off-by: Crystal Guo <crystal.guo@mediatek.com>
> 
> I understand you are posting these together for complete reference, but driver
> subsystem maintainers typically don't pick dts patches. In anycase, can you
> clarify if your registers are self-clearing registers?
> 
> regards
> Suman
> 
Hi Suman,

Thanks for your reply.
Our reset registers are not self-clearing, it needs to set the clear bit
to 1 to clear the related bit.
And should I separate this dts patch from the patch sets?

regards
Crystal
> > ---
> >  arch/arm64/boot/dts/mediatek/mt8192.dtsi | 11 ++++++++++-
> >  1 file changed, 10 insertions(+), 1 deletion(-)
> > 
> > diff --git a/arch/arm64/boot/dts/mediatek/mt8192.dtsi b/arch/arm64/boot/dts/mediatek/mt8192.dtsi
> > index 931e1ca17220..a0cb9904706b 100644
> > --- a/arch/arm64/boot/dts/mediatek/mt8192.dtsi
> > +++ b/arch/arm64/boot/dts/mediatek/mt8192.dtsi
> > @@ -10,6 +10,7 @@
> >  #include <dt-bindings/interrupt-controller/irq.h>
> >  #include <dt-bindings/pinctrl/mt8192-pinfunc.h>
> >  #include <dt-bindings/power/mt8192-power.h>
> > +#include <dt-bindings/reset/ti-syscon.h>
> >  
> >  / {
> >  	compatible = "mediatek,mt8192";
> > @@ -219,9 +220,17 @@
> >  		};
> >  
> >  		infracfg: infracfg@10001000 {
> > -			compatible = "mediatek,mt8192-infracfg", "syscon";
> > +			compatible = "mediatek,mt8192-infracfg", "syscon", "simple-mfd";
> >  			reg = <0 0x10001000 0 0x1000>;
> >  			#clock-cells = <1>;
> > +
> > +			infracfg_rst: reset-controller {
> > +				compatible = "mediatek,infra-reset", "ti,syscon-reset";
> > +				#reset-cells = <1>;
> > +				ti,reset-bits = <
> > +					0x140 15 0x144 15 0 0 (ASSERT_SET | DEASSERT_SET | STATUS_NONE) /* 0: pcie */
> > +				>;
> > +			};
> >  		};
> >  
> >  		pericfg: pericfg@10003000 {
> > 
>
Suman Anna Sept. 8, 2020, 3:51 p.m. UTC | #3 
On 9/8/20 8:26 AM, Crystal Guo wrote:
> On Thu, 2020-09-03 at 07:29 +0800, Suman Anna wrote:
>> Hi Crystal,
>>
>> On 8/16/20 10:03 PM, Crystal Guo wrote:
>>> add infracfg_rst node which is for MT8192 platform
>>>
>>> Signed-off-by: Crystal Guo <crystal.guo@mediatek.com>
>>
>> I understand you are posting these together for complete reference, but driver
>> subsystem maintainers typically don't pick dts patches. In anycase, can you
>> clarify if your registers are self-clearing registers?
>>
>> regards
>> Suman
>>
> Hi Suman,
> 
> Thanks for your reply.
> Our reset registers are not self-clearing, it needs to set the clear bit
> to 1 to clear the related bit.
> And should I separate this dts patch from the patch sets?

Typically yes, but will leave it upto Philipp and Mediatek DT maintainers.

regards
Suman

> 
> regards
> Crystal
>>> ---
>>>  arch/arm64/boot/dts/mediatek/mt8192.dtsi | 11 ++++++++++-
>>>  1 file changed, 10 insertions(+), 1 deletion(-)
>>>
>>> diff --git a/arch/arm64/boot/dts/mediatek/mt8192.dtsi b/arch/arm64/boot/dts/mediatek/mt8192.dtsi
>>> index 931e1ca17220..a0cb9904706b 100644
>>> --- a/arch/arm64/boot/dts/mediatek/mt8192.dtsi
>>> +++ b/arch/arm64/boot/dts/mediatek/mt8192.dtsi
>>> @@ -10,6 +10,7 @@
>>>  #include <dt-bindings/interrupt-controller/irq.h>
>>>  #include <dt-bindings/pinctrl/mt8192-pinfunc.h>
>>>  #include <dt-bindings/power/mt8192-power.h>
>>> +#include <dt-bindings/reset/ti-syscon.h>
>>>  
>>>  / {
>>>  	compatible = "mediatek,mt8192";
>>> @@ -219,9 +220,17 @@
>>>  		};
>>>  
>>>  		infracfg: infracfg@10001000 {
>>> -			compatible = "mediatek,mt8192-infracfg", "syscon";
>>> +			compatible = "mediatek,mt8192-infracfg", "syscon", "simple-mfd";
>>>  			reg = <0 0x10001000 0 0x1000>;
>>>  			#clock-cells = <1>;
>>> +
>>> +			infracfg_rst: reset-controller {
>>> +				compatible = "mediatek,infra-reset", "ti,syscon-reset";
>>> +				#reset-cells = <1>;
>>> +				ti,reset-bits = <
>>> +					0x140 15 0x144 15 0 0 (ASSERT_SET | DEASSERT_SET | STATUS_NONE) /* 0: pcie */
>>> +				>;
>>> +			};
>>>  		};
>>>  
>>>  		pericfg: pericfg@10003000 {
>>>
>>
>
diff mbox series

Patch

diff --git a/arch/arm64/boot/dts/mediatek/mt8192.dtsi b/arch/arm64/boot/dts/mediatek/mt8192.dtsi
index 931e1ca17220..a0cb9904706b 100644
--- a/arch/arm64/boot/dts/mediatek/mt8192.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8192.dtsi
@@ -10,6 +10,7 @@ 
 #include <dt-bindings/interrupt-controller/irq.h>
 #include <dt-bindings/pinctrl/mt8192-pinfunc.h>
 #include <dt-bindings/power/mt8192-power.h>
+#include <dt-bindings/reset/ti-syscon.h>
 
 / {
 	compatible = "mediatek,mt8192";
@@ -219,9 +220,17 @@ 
 		};
 
 		infracfg: infracfg@10001000 {
-			compatible = "mediatek,mt8192-infracfg", "syscon";
+			compatible = "mediatek,mt8192-infracfg", "syscon", "simple-mfd";
 			reg = <0 0x10001000 0 0x1000>;
 			#clock-cells = <1>;
+
+			infracfg_rst: reset-controller {
+				compatible = "mediatek,infra-reset", "ti,syscon-reset";
+				#reset-cells = <1>;
+				ti,reset-bits = <
+					0x140 15 0x144 15 0 0 (ASSERT_SET | DEASSERT_SET | STATUS_NONE) /* 0: pcie */
+				>;
+			};
 		};
 
 		pericfg: pericfg@10003000 {