Re: [PATCH 01/25] ARM: dts: exynos4: add rotator nodes

[Marek Szyprowski]

Hello,

On 2015-11-13 03:29, Krzysztof Kozlowski wrote:

On 10.11.2015 22:23, Marek Szyprowski wrote:

This patch adds device node for Rotator device to Exynos 4210 and 4x12
device tree files.

Signed-off-by: Marek Szyprowski 
---
  arch/arm/boot/dts/exynos4.dtsi| 10 +-
  arch/arm/boot/dts/exynos4210.dtsi |  8 
  arch/arm/boot/dts/exynos4x12.dtsi |  4 
  3 files changed, 21 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/exynos4.dtsi b/arch/arm/boot/dts/exynos4.dtsi
index 2f31f773b096..3fa575ad7693 100644
--- a/arch/arm/boot/dts/exynos4.dtsi
+++ b/arch/arm/boot/dts/exynos4.dtsi
@@ -718,6 +718,15 @@
iommus = <_jpeg>;
};
  
+	rotator: rotator@1281 {

+   compatible = "samsung,exynos4210-rotator";
+   reg = <0x1281 0x1000>;

One more question after looking at second patch. You are mapping size of
0x1000 instead of 0x64. Any particular reason? (it does not really
matter... just wondering)


Nope, it might be just a copy/paste issue I've missed. Do you want to 
unify it to

0x64 or 0x1000?

Best regards
--
Marek Szyprowski, PhD
Samsung R Institute Poland

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Re: [PATCH 01/25] ARM: dts: exynos4: add rotator nodes

[Marek Szyprowski]

Hello,

On 2015-11-13 03:23, Krzysztof Kozlowski wrote:

On 10.11.2015 22:23, Marek Szyprowski wrote:

This patch adds device node for Rotator device to Exynos 4210 and 4x12
device tree files.

Signed-off-by: Marek Szyprowski 
---
  arch/arm/boot/dts/exynos4.dtsi| 10 +-
  arch/arm/boot/dts/exynos4210.dtsi |  8 
  arch/arm/boot/dts/exynos4x12.dtsi |  4 
  3 files changed, 21 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/exynos4.dtsi b/arch/arm/boot/dts/exynos4.dtsi
index 2f31f773b096..3fa575ad7693 100644
--- a/arch/arm/boot/dts/exynos4.dtsi
+++ b/arch/arm/boot/dts/exynos4.dtsi
@@ -718,6 +718,15 @@
iommus = <_jpeg>;
};
  
+	rotator: rotator@1281 {

+   compatible = "samsung,exynos4210-rotator";
+   reg = <0x1281 0x1000>;
+   interrupts = <0 83 0>;
+   clocks = < CLK_ROTATOR>;
+   clock-names = "rotator";
+   iommus = <_rotator>;
+   };
+
hdmi: hdmi@12D0 {
compatible = "samsung,exynos4210-hdmi";
reg = <0x12D0 0x7>;
@@ -945,7 +954,6 @@
interrupts = <5 0>;
clock-names = "sysmmu", "master";
clocks = < CLK_SMMU_ROTATOR>, < CLK_ROTATOR>;
-   power-domains = <_lcd0>;

Hmm I wonder why you changed this. Sysmmu rotator and rotator are
not a part of LCD power domain on Exynos4x12 (or they should not be?)? Why?


On Exynos 4210 rotator (and its SYSMMU) belongs to LCD0 power domain. On
Exynos 4x12 it belong to TOP power domain (which is always on and not
described in DTS).

Best regards
--
Marek Szyprowski, PhD
Samsung R Institute Poland

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Re: [PATCH 01/25] ARM: dts: exynos4: add rotator nodes

[Krzysztof Kozlowski]

On 13.11.2015 17:32, Marek Szyprowski wrote:
> Hello,
> 
> On 2015-11-13 03:29, Krzysztof Kozlowski wrote:
>> On 10.11.2015 22:23, Marek Szyprowski wrote:
>>> This patch adds device node for Rotator device to Exynos 4210 and 4x12
>>> device tree files.
>>>
>>> Signed-off-by: Marek Szyprowski 
>>> ---
>>>   arch/arm/boot/dts/exynos4.dtsi| 10 +-
>>>   arch/arm/boot/dts/exynos4210.dtsi |  8 
>>>   arch/arm/boot/dts/exynos4x12.dtsi |  4 
>>>   3 files changed, 21 insertions(+), 1 deletion(-)
>>>
>>> diff --git a/arch/arm/boot/dts/exynos4.dtsi
>>> b/arch/arm/boot/dts/exynos4.dtsi
>>> index 2f31f773b096..3fa575ad7693 100644
>>> --- a/arch/arm/boot/dts/exynos4.dtsi
>>> +++ b/arch/arm/boot/dts/exynos4.dtsi
>>> @@ -718,6 +718,15 @@
>>>   iommus = <_jpeg>;
>>>   };
>>>   +rotator: rotator@1281 {
>>> +compatible = "samsung,exynos4210-rotator";
>>> +reg = <0x1281 0x1000>;
>> One more question after looking at second patch. You are mapping size of
>> 0x1000 instead of 0x64. Any particular reason? (it does not really
>> matter... just wondering)
> 
> Nope, it might be just a copy/paste issue I've missed. Do you want to
> unify it to
> 0x64 or 0x1000?

To 0x64, please. That would make it synced with datasheet.

Best regards,
Krzysztof

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Re: [PATCH 01/25] ARM: dts: exynos4: add rotator nodes

[Krzysztof Kozlowski]

On 13.11.2015 17:31, Marek Szyprowski wrote:
> Hello,
> 
> On 2015-11-13 03:23, Krzysztof Kozlowski wrote:
>> On 10.11.2015 22:23, Marek Szyprowski wrote:
>>> This patch adds device node for Rotator device to Exynos 4210 and 4x12
>>> device tree files.
>>>
>>> Signed-off-by: Marek Szyprowski 
>>> ---
>>>   arch/arm/boot/dts/exynos4.dtsi| 10 +-
>>>   arch/arm/boot/dts/exynos4210.dtsi |  8 
>>>   arch/arm/boot/dts/exynos4x12.dtsi |  4 
>>>   3 files changed, 21 insertions(+), 1 deletion(-)
>>>
>>> diff --git a/arch/arm/boot/dts/exynos4.dtsi
>>> b/arch/arm/boot/dts/exynos4.dtsi
>>> index 2f31f773b096..3fa575ad7693 100644
>>> --- a/arch/arm/boot/dts/exynos4.dtsi
>>> +++ b/arch/arm/boot/dts/exynos4.dtsi
>>> @@ -718,6 +718,15 @@
>>>   iommus = <_jpeg>;
>>>   };
>>>   +rotator: rotator@1281 {
>>> +compatible = "samsung,exynos4210-rotator";
>>> +reg = <0x1281 0x1000>;
>>> +interrupts = <0 83 0>;
>>> +clocks = < CLK_ROTATOR>;
>>> +clock-names = "rotator";
>>> +iommus = <_rotator>;
>>> +};
>>> +
>>>   hdmi: hdmi@12D0 {
>>>   compatible = "samsung,exynos4210-hdmi";
>>>   reg = <0x12D0 0x7>;
>>> @@ -945,7 +954,6 @@
>>>   interrupts = <5 0>;
>>>   clock-names = "sysmmu", "master";
>>>   clocks = < CLK_SMMU_ROTATOR>, < CLK_ROTATOR>;
>>> -power-domains = <_lcd0>;
>> Hmm I wonder why you changed this. Sysmmu rotator and rotator are
>> not a part of LCD power domain on Exynos4x12 (or they should not be?)?
>> Why?
> 
> On Exynos 4210 rotator (and its SYSMMU) belongs to LCD0 power domain. On
> Exynos 4x12 it belong to TOP power domain (which is always on and not
> described in DTS).

Indeed... The change makes sense but actually for sysmmu rotator should
be separated (especially that this was not mentioned in commit description).

Can you split the sysmmu part?

Best regards,
Krzysztof

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Re: [PATCH 01/25] ARM: dts: exynos4: add rotator nodes

[Krzysztof Kozlowski]

On 10.11.2015 22:23, Marek Szyprowski wrote:
> This patch adds device node for Rotator device to Exynos 4210 and 4x12
> device tree files.
> 
> Signed-off-by: Marek Szyprowski 
> ---
>  arch/arm/boot/dts/exynos4.dtsi| 10 +-
>  arch/arm/boot/dts/exynos4210.dtsi |  8 
>  arch/arm/boot/dts/exynos4x12.dtsi |  4 
>  3 files changed, 21 insertions(+), 1 deletion(-)
> 
> diff --git a/arch/arm/boot/dts/exynos4.dtsi b/arch/arm/boot/dts/exynos4.dtsi
> index 2f31f773b096..3fa575ad7693 100644
> --- a/arch/arm/boot/dts/exynos4.dtsi
> +++ b/arch/arm/boot/dts/exynos4.dtsi
> @@ -718,6 +718,15 @@
>   iommus = <_jpeg>;
>   };
>  
> + rotator: rotator@1281 {
> + compatible = "samsung,exynos4210-rotator";
> + reg = <0x1281 0x1000>;

One more question after looking at second patch. You are mapping size of
0x1000 instead of 0x64. Any particular reason? (it does not really
matter... just wondering)

Best regards,
Krzysztof

> + interrupts = <0 83 0>;
> + clocks = < CLK_ROTATOR>;
> + clock-names = "rotator";
> + iommus = <_rotator>;
> + };
> +
>   hdmi: hdmi@12D0 {
>   compatible = "samsung,exynos4210-hdmi";
>   reg = <0x12D0 0x7>;
> @@ -945,7 +954,6 @@
>   interrupts = <5 0>;
>   clock-names = "sysmmu", "master";
>   clocks = < CLK_SMMU_ROTATOR>, < CLK_ROTATOR>;
> - power-domains = <_lcd0>;
>   #iommu-cells = <0>;
>   };
>  
> diff --git a/arch/arm/boot/dts/exynos4210.dtsi 
> b/arch/arm/boot/dts/exynos4210.dtsi
> index 3e5ba665d200..b7474cf27e82 100644
> --- a/arch/arm/boot/dts/exynos4210.dtsi
> +++ b/arch/arm/boot/dts/exynos4210.dtsi
> @@ -279,3 +279,11 @@
>   < CLK_OUT_CPU>, < CLK_XXTI>, < CLK_XUSBXTI>;
>   #clock-cells = <1>;
>  };
> +
> + {
> + power-domains = <_lcd0>;
> +};
> +
> +_rotator {
> + power-domains = <_lcd0>;
> +};
> diff --git a/arch/arm/boot/dts/exynos4x12.dtsi 
> b/arch/arm/boot/dts/exynos4x12.dtsi
> index b77dac61ffb5..148b47ad3120 100644
> --- a/arch/arm/boot/dts/exynos4x12.dtsi
> +++ b/arch/arm/boot/dts/exynos4x12.dtsi
> @@ -339,6 +339,10 @@
>   compatible = "samsung,exynos4212-jpeg";
>  };
>  
> + {
> + compatible = "samsung,exynos4212-rotator";
> +};
> +
>   {
>   compatible = "samsung,exynos4212-mixer";
>   clock-names = "mixer", "hdmi", "sclk_hdmi", "vp";
> 

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Re: [PATCH 01/25] ARM: dts: exynos4: add rotator nodes

[Krzysztof Kozlowski]

On 10.11.2015 22:23, Marek Szyprowski wrote:
> This patch adds device node for Rotator device to Exynos 4210 and 4x12
> device tree files.
> 
> Signed-off-by: Marek Szyprowski 
> ---
>  arch/arm/boot/dts/exynos4.dtsi| 10 +-
>  arch/arm/boot/dts/exynos4210.dtsi |  8 
>  arch/arm/boot/dts/exynos4x12.dtsi |  4 
>  3 files changed, 21 insertions(+), 1 deletion(-)
> 
> diff --git a/arch/arm/boot/dts/exynos4.dtsi b/arch/arm/boot/dts/exynos4.dtsi
> index 2f31f773b096..3fa575ad7693 100644
> --- a/arch/arm/boot/dts/exynos4.dtsi
> +++ b/arch/arm/boot/dts/exynos4.dtsi
> @@ -718,6 +718,15 @@
>   iommus = <_jpeg>;
>   };
>  
> + rotator: rotator@1281 {
> + compatible = "samsung,exynos4210-rotator";
> + reg = <0x1281 0x1000>;
> + interrupts = <0 83 0>;
> + clocks = < CLK_ROTATOR>;
> + clock-names = "rotator";
> + iommus = <_rotator>;
> + };
> +
>   hdmi: hdmi@12D0 {
>   compatible = "samsung,exynos4210-hdmi";
>   reg = <0x12D0 0x7>;
> @@ -945,7 +954,6 @@
>   interrupts = <5 0>;
>   clock-names = "sysmmu", "master";
>   clocks = < CLK_SMMU_ROTATOR>, < CLK_ROTATOR>;
> - power-domains = <_lcd0>;

Hmm I wonder why you changed this. Sysmmu rotator and rotator are
not a part of LCD power domain on Exynos4x12 (or they should not be?)? Why?

Best regards,
Krzysztof


>   #iommu-cells = <0>;
>   };
>  
> diff --git a/arch/arm/boot/dts/exynos4210.dtsi 
> b/arch/arm/boot/dts/exynos4210.dtsi
> index 3e5ba665d200..b7474cf27e82 100644
> --- a/arch/arm/boot/dts/exynos4210.dtsi
> +++ b/arch/arm/boot/dts/exynos4210.dtsi
> @@ -279,3 +279,11 @@
>   < CLK_OUT_CPU>, < CLK_XXTI>, < CLK_XUSBXTI>;
>   #clock-cells = <1>;
>  };
> +
> + {
> + power-domains = <_lcd0>;
> +};
> +
> +_rotator {
> + power-domains = <_lcd0>;
> +};
> diff --git a/arch/arm/boot/dts/exynos4x12.dtsi 
> b/arch/arm/boot/dts/exynos4x12.dtsi
> index b77dac61ffb5..148b47ad3120 100644
> --- a/arch/arm/boot/dts/exynos4x12.dtsi
> +++ b/arch/arm/boot/dts/exynos4x12.dtsi
> @@ -339,6 +339,10 @@
>   compatible = "samsung,exynos4212-jpeg";
>  };
>  
> + {
> + compatible = "samsung,exynos4212-rotator";
> +};
> +
>   {
>   compatible = "samsung,exynos4212-mixer";
>   clock-names = "mixer", "hdmi", "sclk_hdmi", "vp";
> 

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[PATCH 01/25] ARM: dts: exynos4: add rotator nodes

[Marek Szyprowski]

This patch adds device node for Rotator device to Exynos 4210 and 4x12
device tree files.

Signed-off-by: Marek Szyprowski 
---
 arch/arm/boot/dts/exynos4.dtsi| 10 +-
 arch/arm/boot/dts/exynos4210.dtsi |  8 
 arch/arm/boot/dts/exynos4x12.dtsi |  4 
 3 files changed, 21 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/exynos4.dtsi b/arch/arm/boot/dts/exynos4.dtsi
index 2f31f773b096..3fa575ad7693 100644
--- a/arch/arm/boot/dts/exynos4.dtsi
+++ b/arch/arm/boot/dts/exynos4.dtsi
@@ -718,6 +718,15 @@
iommus = <_jpeg>;
};
 
+   rotator: rotator@1281 {
+   compatible = "samsung,exynos4210-rotator";
+   reg = <0x1281 0x1000>;
+   interrupts = <0 83 0>;
+   clocks = < CLK_ROTATOR>;
+   clock-names = "rotator";
+   iommus = <_rotator>;
+   };
+
hdmi: hdmi@12D0 {
compatible = "samsung,exynos4210-hdmi";
reg = <0x12D0 0x7>;
@@ -945,7 +954,6 @@
interrupts = <5 0>;
clock-names = "sysmmu", "master";
clocks = < CLK_SMMU_ROTATOR>, < CLK_ROTATOR>;
-   power-domains = <_lcd0>;
#iommu-cells = <0>;
};
 
diff --git a/arch/arm/boot/dts/exynos4210.dtsi 
b/arch/arm/boot/dts/exynos4210.dtsi
index 3e5ba665d200..b7474cf27e82 100644
--- a/arch/arm/boot/dts/exynos4210.dtsi
+++ b/arch/arm/boot/dts/exynos4210.dtsi
@@ -279,3 +279,11 @@
< CLK_OUT_CPU>, < CLK_XXTI>, < CLK_XUSBXTI>;
#clock-cells = <1>;
 };
+
+ {
+   power-domains = <_lcd0>;
+};
+
+_rotator {
+   power-domains = <_lcd0>;
+};
diff --git a/arch/arm/boot/dts/exynos4x12.dtsi 
b/arch/arm/boot/dts/exynos4x12.dtsi
index b77dac61ffb5..148b47ad3120 100644
--- a/arch/arm/boot/dts/exynos4x12.dtsi
+++ b/arch/arm/boot/dts/exynos4x12.dtsi
@@ -339,6 +339,10 @@
compatible = "samsung,exynos4212-jpeg";
 };
 
+ {
+   compatible = "samsung,exynos4212-rotator";
+};
+
  {
compatible = "samsung,exynos4212-mixer";
clock-names = "mixer", "hdmi", "sclk_hdmi", "vp";
-- 
1.9.2

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