Re: [PATCH v9 7/7] dt-bindings: ufshcd-pltfrm: Add core reset string

2018-10-08 Thread cang

On 2018-09-27 23:06, Rob Herring wrote:

On Thu, Sep 20, 2018 at 09:28:00PM -0700, Can Guo wrote:

From: Can Guo 

Add core reset support string for UFS.

Signed-off-by: Amit Nischal 
Signed-off-by: Can Guo 
---
 Documentation/devicetree/bindings/ufs/ufshcd-pltfrm.txt | 7 +++
 1 file changed, 7 insertions(+)

diff --git a/Documentation/devicetree/bindings/ufs/ufshcd-pltfrm.txt 
b/Documentation/devicetree/bindings/ufs/ufshcd-pltfrm.txt

index c39dfef..6b697c4 100644
--- a/Documentation/devicetree/bindings/ufs/ufshcd-pltfrm.txt
+++ b/Documentation/devicetree/bindings/ufs/ufshcd-pltfrm.txt
@@ -11,6 +11,11 @@ Required properties:
  "qcom,ufshc"
 - interrupts: 
 - reg   : 
+- reset : reset specifier pair consists of phandle for 
the reset provider
+  and reset lines used by this controller. It is 
mandatory for

+ QCOM SDM845 platform.
+- reset-names   : reset signal name strings sorted in the same 
order as the

+ resets property. It is mandatory for QCOM SDM845 platform.


This already exists as of 4.19 under optional properties. (And you 
can't

add new required properties anyways.)



Thank you Rob, I also found the newly merged change from Huawei on 4.19.
Then our code would need a small change to parse the new reset-names 
string.




 Optional properties:
 - phys  : phandle to UFS PHY node
@@ -64,6 +69,8 @@ Example:
clocks = < 0>, < 0>, < 0>;
clock-names = "core_clk", "ref_clk", "iface_clk";
freq-table-hz = <1 2>, <0 0>, <0 0>;
+   resets = ;
+   reset-names = "core_reset";


And the name should be "rst" (or omitted).



Sure, got it, thank you.


phys = <>;
phy-names = "ufsphy";
};
--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora 
Forum,

a Linux Foundation Collaborative Project



Re: [PATCH v9 7/7] dt-bindings: ufshcd-pltfrm: Add core reset string

2018-10-08 Thread cang

On 2018-09-27 23:06, Rob Herring wrote:

On Thu, Sep 20, 2018 at 09:28:00PM -0700, Can Guo wrote:

From: Can Guo 

Add core reset support string for UFS.

Signed-off-by: Amit Nischal 
Signed-off-by: Can Guo 
---
 Documentation/devicetree/bindings/ufs/ufshcd-pltfrm.txt | 7 +++
 1 file changed, 7 insertions(+)

diff --git a/Documentation/devicetree/bindings/ufs/ufshcd-pltfrm.txt 
b/Documentation/devicetree/bindings/ufs/ufshcd-pltfrm.txt

index c39dfef..6b697c4 100644
--- a/Documentation/devicetree/bindings/ufs/ufshcd-pltfrm.txt
+++ b/Documentation/devicetree/bindings/ufs/ufshcd-pltfrm.txt
@@ -11,6 +11,11 @@ Required properties:
  "qcom,ufshc"
 - interrupts: 
 - reg   : 
+- reset : reset specifier pair consists of phandle for 
the reset provider
+  and reset lines used by this controller. It is 
mandatory for

+ QCOM SDM845 platform.
+- reset-names   : reset signal name strings sorted in the same 
order as the

+ resets property. It is mandatory for QCOM SDM845 platform.


This already exists as of 4.19 under optional properties. (And you 
can't

add new required properties anyways.)



Thank you Rob, I also found the newly merged change from Huawei on 4.19.
Then our code would need a small change to parse the new reset-names 
string.




 Optional properties:
 - phys  : phandle to UFS PHY node
@@ -64,6 +69,8 @@ Example:
clocks = < 0>, < 0>, < 0>;
clock-names = "core_clk", "ref_clk", "iface_clk";
freq-table-hz = <1 2>, <0 0>, <0 0>;
+   resets = ;
+   reset-names = "core_reset";


And the name should be "rst" (or omitted).



Sure, got it, thank you.


phys = <>;
phy-names = "ufsphy";
};
--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora 
Forum,

a Linux Foundation Collaborative Project



Re: [PATCH v9 7/7] dt-bindings: ufshcd-pltfrm: Add core reset string

2018-09-27 Thread Rob Herring
On Thu, Sep 20, 2018 at 09:28:00PM -0700, Can Guo wrote:
> From: Can Guo 
> 
> Add core reset support string for UFS.
> 
> Signed-off-by: Amit Nischal 
> Signed-off-by: Can Guo 
> ---
>  Documentation/devicetree/bindings/ufs/ufshcd-pltfrm.txt | 7 +++
>  1 file changed, 7 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/ufs/ufshcd-pltfrm.txt 
> b/Documentation/devicetree/bindings/ufs/ufshcd-pltfrm.txt
> index c39dfef..6b697c4 100644
> --- a/Documentation/devicetree/bindings/ufs/ufshcd-pltfrm.txt
> +++ b/Documentation/devicetree/bindings/ufs/ufshcd-pltfrm.txt
> @@ -11,6 +11,11 @@ Required properties:
> "qcom,ufshc"
>  - interrupts: 
>  - reg   : 
> +- reset : reset specifier pair consists of phandle for the reset 
> provider
> +  and reset lines used by this controller. It is 
> mandatory for
> +   QCOM SDM845 platform.
> +- reset-names   : reset signal name strings sorted in the same order as 
> the
> +   resets property. It is mandatory for QCOM SDM845 platform.

This already exists as of 4.19 under optional properties. (And you can't 
add new required properties anyways.)

>  
>  Optional properties:
>  - phys  : phandle to UFS PHY node
> @@ -64,6 +69,8 @@ Example:
>   clocks = < 0>, < 0>, < 0>;
>   clock-names = "core_clk", "ref_clk", "iface_clk";
>   freq-table-hz = <1 2>, <0 0>, <0 0>;
> + resets = ;
> + reset-names = "core_reset";

And the name should be "rst" (or omitted).

>   phys = <>;
>   phy-names = "ufsphy";
>   };
> -- 
> The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
> a Linux Foundation Collaborative Project
> 


Re: [PATCH v9 7/7] dt-bindings: ufshcd-pltfrm: Add core reset string

2018-09-27 Thread Rob Herring
On Thu, Sep 20, 2018 at 09:28:00PM -0700, Can Guo wrote:
> From: Can Guo 
> 
> Add core reset support string for UFS.
> 
> Signed-off-by: Amit Nischal 
> Signed-off-by: Can Guo 
> ---
>  Documentation/devicetree/bindings/ufs/ufshcd-pltfrm.txt | 7 +++
>  1 file changed, 7 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/ufs/ufshcd-pltfrm.txt 
> b/Documentation/devicetree/bindings/ufs/ufshcd-pltfrm.txt
> index c39dfef..6b697c4 100644
> --- a/Documentation/devicetree/bindings/ufs/ufshcd-pltfrm.txt
> +++ b/Documentation/devicetree/bindings/ufs/ufshcd-pltfrm.txt
> @@ -11,6 +11,11 @@ Required properties:
> "qcom,ufshc"
>  - interrupts: 
>  - reg   : 
> +- reset : reset specifier pair consists of phandle for the reset 
> provider
> +  and reset lines used by this controller. It is 
> mandatory for
> +   QCOM SDM845 platform.
> +- reset-names   : reset signal name strings sorted in the same order as 
> the
> +   resets property. It is mandatory for QCOM SDM845 platform.

This already exists as of 4.19 under optional properties. (And you can't 
add new required properties anyways.)

>  
>  Optional properties:
>  - phys  : phandle to UFS PHY node
> @@ -64,6 +69,8 @@ Example:
>   clocks = < 0>, < 0>, < 0>;
>   clock-names = "core_clk", "ref_clk", "iface_clk";
>   freq-table-hz = <1 2>, <0 0>, <0 0>;
> + resets = ;
> + reset-names = "core_reset";

And the name should be "rst" (or omitted).

>   phys = <>;
>   phy-names = "ufsphy";
>   };
> -- 
> The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
> a Linux Foundation Collaborative Project
> 


[PATCH v9 7/7] dt-bindings: ufshcd-pltfrm: Add core reset string

2018-09-20 Thread Can Guo
From: Can Guo 

Add core reset support string for UFS.

Signed-off-by: Amit Nischal 
Signed-off-by: Can Guo 
---
 Documentation/devicetree/bindings/ufs/ufshcd-pltfrm.txt | 7 +++
 1 file changed, 7 insertions(+)

diff --git a/Documentation/devicetree/bindings/ufs/ufshcd-pltfrm.txt 
b/Documentation/devicetree/bindings/ufs/ufshcd-pltfrm.txt
index c39dfef..6b697c4 100644
--- a/Documentation/devicetree/bindings/ufs/ufshcd-pltfrm.txt
+++ b/Documentation/devicetree/bindings/ufs/ufshcd-pltfrm.txt
@@ -11,6 +11,11 @@ Required properties:
  "qcom,ufshc"
 - interrupts: 
 - reg   : 
+- reset : reset specifier pair consists of phandle for the reset 
provider
+  and reset lines used by this controller. It is mandatory 
for
+ QCOM SDM845 platform.
+- reset-names   : reset signal name strings sorted in the same order as the
+ resets property. It is mandatory for QCOM SDM845 platform.
 
 Optional properties:
 - phys  : phandle to UFS PHY node
@@ -64,6 +69,8 @@ Example:
clocks = < 0>, < 0>, < 0>;
clock-names = "core_clk", "ref_clk", "iface_clk";
freq-table-hz = <1 2>, <0 0>, <0 0>;
+   resets = ;
+   reset-names = "core_reset";
phys = <>;
phy-names = "ufsphy";
};
-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project



[PATCH v9 7/7] dt-bindings: ufshcd-pltfrm: Add core reset string

2018-09-20 Thread Can Guo
From: Can Guo 

Add core reset support string for UFS.

Signed-off-by: Amit Nischal 
Signed-off-by: Can Guo 
---
 Documentation/devicetree/bindings/ufs/ufshcd-pltfrm.txt | 7 +++
 1 file changed, 7 insertions(+)

diff --git a/Documentation/devicetree/bindings/ufs/ufshcd-pltfrm.txt 
b/Documentation/devicetree/bindings/ufs/ufshcd-pltfrm.txt
index c39dfef..6b697c4 100644
--- a/Documentation/devicetree/bindings/ufs/ufshcd-pltfrm.txt
+++ b/Documentation/devicetree/bindings/ufs/ufshcd-pltfrm.txt
@@ -11,6 +11,11 @@ Required properties:
  "qcom,ufshc"
 - interrupts: 
 - reg   : 
+- reset : reset specifier pair consists of phandle for the reset 
provider
+  and reset lines used by this controller. It is mandatory 
for
+ QCOM SDM845 platform.
+- reset-names   : reset signal name strings sorted in the same order as the
+ resets property. It is mandatory for QCOM SDM845 platform.
 
 Optional properties:
 - phys  : phandle to UFS PHY node
@@ -64,6 +69,8 @@ Example:
clocks = < 0>, < 0>, < 0>;
clock-names = "core_clk", "ref_clk", "iface_clk";
freq-table-hz = <1 2>, <0 0>, <0 0>;
+   resets = ;
+   reset-names = "core_reset";
phys = <>;
phy-names = "ufsphy";
};
-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project