diff mbox

dts/ls2080a: Update PCIe compatible

Message ID 1448345075-6801-1-git-send-email-Mingkai.Hu@freescale.com
State Changes Requested, archived
Headers show

Commit Message

Mingkai Hu Nov. 24, 2015, 6:04 a.m. UTC
From: Minghuan Lian <Minghuan.Lian@freescale.com>

The patch adds LS2085a to PCIe compatible to fix the compatibility
issue when using firmware with LS2085a compatible property.

Signed-off-by: Minghuan Lian <Minghuan.Lian@freescale.com>
Signed-off-by: Mingkai Hu <Mingkai.Hu@freescale.com>
---
 Documentation/devicetree/bindings/pci/layerscape-pci.txt |  1 +
 arch/arm64/boot/dts/freescale/fsl-ls2080a.dtsi           | 12 ++++++++----
 2 files changed, 9 insertions(+), 4 deletions(-)

Comments

Rob Herring Nov. 24, 2015, 8:22 p.m. UTC | #1
On Tue, Nov 24, 2015 at 02:04:35PM +0800, Mingkai Hu wrote:
> From: Minghuan Lian <Minghuan.Lian@freescale.com>
> 
> The patch adds LS2085a to PCIe compatible to fix the compatibility
> issue when using firmware with LS2085a compatible property.
> 
> Signed-off-by: Minghuan Lian <Minghuan.Lian@freescale.com>
> Signed-off-by: Mingkai Hu <Mingkai.Hu@freescale.com>
> ---
>  Documentation/devicetree/bindings/pci/layerscape-pci.txt |  1 +
>  arch/arm64/boot/dts/freescale/fsl-ls2080a.dtsi           | 12 ++++++++----
>  2 files changed, 9 insertions(+), 4 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/pci/layerscape-pci.txt b/Documentation/devicetree/bindings/pci/layerscape-pci.txt
> index e376785..4600007 100644
> --- a/Documentation/devicetree/bindings/pci/layerscape-pci.txt
> +++ b/Documentation/devicetree/bindings/pci/layerscape-pci.txt
> @@ -15,6 +15,7 @@ Required properties:
>  - compatible: should contain the platform identifier such as:
>          "fsl,ls1021a-pcie", "snps,dw-pcie"
>          "fsl,ls2080a-pcie", "snps,dw-pcie"
> +        "fsl,ls2085a-pcie", "snps,dw-pcie"
>  - reg: base addresses and lengths of the PCIe controller
>  - interrupts: A list of interrupt outputs of the controller. Must contain an
>    entry for each entry in the interrupt-names property.
> diff --git a/arch/arm64/boot/dts/freescale/fsl-ls2080a.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls2080a.dtsi
> index e81cd48..3821bb1 100644
> --- a/arch/arm64/boot/dts/freescale/fsl-ls2080a.dtsi
> +++ b/arch/arm64/boot/dts/freescale/fsl-ls2080a.dtsi
> @@ -383,7 +383,8 @@
>  		};
>  
>  		pcie@3400000 {
> -			compatible = "fsl,ls2080a-pcie", "snps,dw-pcie";
> +			compatible = "fsl,ls2080a-pcie", "fsl,ls2085a-pcie",
> +				     "snps,dw-pcie";

This doesn't match the doc as to what are valid combinations. The order 
here seems backwards too. ls2085a is older?

>  			reg = <0x00 0x03400000 0x0 0x00100000   /* controller registers */
>  			       0x10 0x00000000 0x0 0x00002000>; /* configuration space */
>  			reg-names = "regs", "config";
> @@ -406,7 +407,8 @@
>  		};
>  
>  		pcie@3500000 {
> -			compatible = "fsl,ls2080a-pcie", "snps,dw-pcie";
> +			compatible = "fsl,ls2080a-pcie", "fsl,ls2085a-pcie",
> +				     "snps,dw-pcie";
>  			reg = <0x00 0x03500000 0x0 0x00100000   /* controller registers */
>  			       0x12 0x00000000 0x0 0x00002000>; /* configuration space */
>  			reg-names = "regs", "config";
> @@ -429,7 +431,8 @@
>  		};
>  
>  		pcie@3600000 {
> -			compatible = "fsl,ls2080a-pcie", "snps,dw-pcie";
> +			compatible = "fsl,ls2080a-pcie", "fsl,ls2085a-pcie",
> +				     "snps,dw-pcie";
>  			reg = <0x00 0x03600000 0x0 0x00100000   /* controller registers */
>  			       0x14 0x00000000 0x0 0x00002000>; /* configuration space */
>  			reg-names = "regs", "config";
> @@ -452,7 +455,8 @@
>  		};
>  
>  		pcie@3700000 {
> -			compatible = "fsl,ls2080a-pcie", "snps,dw-pcie";
> +			compatible = "fsl,ls2080a-pcie", "fsl,ls2085a-pcie",
> +				     "snps,dw-pcie";
>  			reg = <0x00 0x03700000 0x0 0x00100000   /* controller registers */
>  			       0x16 0x00000000 0x0 0x00002000>; /* configuration space */
>  			reg-names = "regs", "config";
> -- 
> 2.1.0.27.g96db324
> 
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Yang Li Dec. 2, 2015, 8:18 p.m. UTC | #2
On Tue, Nov 24, 2015 at 11:01 PM, Hu Vincent <Mingkai.Hu@freescale.com> wrote:
>
>
>> -----Original Message-----
>> From: Rob Herring [mailto:robh@kernel.org]
>> Sent: Wednesday, November 25, 2015 4:22 AM
>> To: Hu Mingkai-B21284
>> Cc: arm@kernel.org; linux-arm-kernel@lists.infradead.org;
>> devicetree@vger.kernel.org; Li Yang-Leo-R58472; Lian Minghuan-B31939
>> Subject: Re: [PATCH] dts/ls2080a: Update PCIe compatible
>>
>> On Tue, Nov 24, 2015 at 02:04:35PM +0800, Mingkai Hu wrote:
>> > From: Minghuan Lian <Minghuan.Lian@freescale.com>
>> >
>> > The patch adds LS2085a to PCIe compatible to fix the compatibility
>> > issue when using firmware with LS2085a compatible property.
>> >
>> > Signed-off-by: Minghuan Lian <Minghuan.Lian@freescale.com>
>> > Signed-off-by: Mingkai Hu <Mingkai.Hu@freescale.com>
>> > ---
>> >  Documentation/devicetree/bindings/pci/layerscape-pci.txt |  1 +
>> >  arch/arm64/boot/dts/freescale/fsl-ls2080a.dtsi           | 12
>> ++++++++----
>> >  2 files changed, 9 insertions(+), 4 deletions(-)
>> >
>> > diff --git a/Documentation/devicetree/bindings/pci/layerscape-pci.txt
>> > b/Documentation/devicetree/bindings/pci/layerscape-pci.txt
>> > index e376785..4600007 100644
>> > --- a/Documentation/devicetree/bindings/pci/layerscape-pci.txt
>> > +++ b/Documentation/devicetree/bindings/pci/layerscape-pci.txt
>> > @@ -15,6 +15,7 @@ Required properties:
>> >  - compatible: should contain the platform identifier such as:
>> >          "fsl,ls1021a-pcie", "snps,dw-pcie"
>> >          "fsl,ls2080a-pcie", "snps,dw-pcie"
>> > +        "fsl,ls2085a-pcie", "snps,dw-pcie"
>> >  - reg: base addresses and lengths of the PCIe controller
>> >  - interrupts: A list of interrupt outputs of the controller. Must
>> contain an
>> >    entry for each entry in the interrupt-names property.
>> > diff --git a/arch/arm64/boot/dts/freescale/fsl-ls2080a.dtsi
>> > b/arch/arm64/boot/dts/freescale/fsl-ls2080a.dtsi
>> > index e81cd48..3821bb1 100644
>> > --- a/arch/arm64/boot/dts/freescale/fsl-ls2080a.dtsi
>> > +++ b/arch/arm64/boot/dts/freescale/fsl-ls2080a.dtsi
>> > @@ -383,7 +383,8 @@
>> >             };
>> >
>> >             pcie@3400000 {
>> > -                   compatible = "fsl,ls2080a-pcie", "snps,dw-pcie";
>> > +                   compatible = "fsl,ls2080a-pcie", "fsl,ls2085a-pcie",
>> > +                                "snps,dw-pcie";
>>
>> This doesn't match the doc as to what are valid combinations. The order
>> here seems backwards too. ls2085a is older?
>>
>
> Yes, ls2085a was released earlier. You mean the older one comes first? Like:
>
> compatible = "fsl,ls2085a-pcie", "fsl,ls2080a-pcie",
>                  "snps,dw-pcie";

No.  The original order should be good.  We should put newer/more
specific compatible first and older/more generic compatible later.  I
think the issue is that the binding document.  We don't need to list
the combinations.  Just list all the possible compatible strings
specific to layerscape.  You can add a special note about "snps,
dw-pcie" separately.

Regards,
Leo
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diff mbox

Patch

diff --git a/Documentation/devicetree/bindings/pci/layerscape-pci.txt b/Documentation/devicetree/bindings/pci/layerscape-pci.txt
index e376785..4600007 100644
--- a/Documentation/devicetree/bindings/pci/layerscape-pci.txt
+++ b/Documentation/devicetree/bindings/pci/layerscape-pci.txt
@@ -15,6 +15,7 @@  Required properties:
 - compatible: should contain the platform identifier such as:
         "fsl,ls1021a-pcie", "snps,dw-pcie"
         "fsl,ls2080a-pcie", "snps,dw-pcie"
+        "fsl,ls2085a-pcie", "snps,dw-pcie"
 - reg: base addresses and lengths of the PCIe controller
 - interrupts: A list of interrupt outputs of the controller. Must contain an
   entry for each entry in the interrupt-names property.
diff --git a/arch/arm64/boot/dts/freescale/fsl-ls2080a.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls2080a.dtsi
index e81cd48..3821bb1 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls2080a.dtsi
+++ b/arch/arm64/boot/dts/freescale/fsl-ls2080a.dtsi
@@ -383,7 +383,8 @@ 
 		};
 
 		pcie@3400000 {
-			compatible = "fsl,ls2080a-pcie", "snps,dw-pcie";
+			compatible = "fsl,ls2080a-pcie", "fsl,ls2085a-pcie",
+				     "snps,dw-pcie";
 			reg = <0x00 0x03400000 0x0 0x00100000   /* controller registers */
 			       0x10 0x00000000 0x0 0x00002000>; /* configuration space */
 			reg-names = "regs", "config";
@@ -406,7 +407,8 @@ 
 		};
 
 		pcie@3500000 {
-			compatible = "fsl,ls2080a-pcie", "snps,dw-pcie";
+			compatible = "fsl,ls2080a-pcie", "fsl,ls2085a-pcie",
+				     "snps,dw-pcie";
 			reg = <0x00 0x03500000 0x0 0x00100000   /* controller registers */
 			       0x12 0x00000000 0x0 0x00002000>; /* configuration space */
 			reg-names = "regs", "config";
@@ -429,7 +431,8 @@ 
 		};
 
 		pcie@3600000 {
-			compatible = "fsl,ls2080a-pcie", "snps,dw-pcie";
+			compatible = "fsl,ls2080a-pcie", "fsl,ls2085a-pcie",
+				     "snps,dw-pcie";
 			reg = <0x00 0x03600000 0x0 0x00100000   /* controller registers */
 			       0x14 0x00000000 0x0 0x00002000>; /* configuration space */
 			reg-names = "regs", "config";
@@ -452,7 +455,8 @@ 
 		};
 
 		pcie@3700000 {
-			compatible = "fsl,ls2080a-pcie", "snps,dw-pcie";
+			compatible = "fsl,ls2080a-pcie", "fsl,ls2085a-pcie",
+				     "snps,dw-pcie";
 			reg = <0x00 0x03700000 0x0 0x00100000   /* controller registers */
 			       0x16 0x00000000 0x0 0x00002000>; /* configuration space */
 			reg-names = "regs", "config";