diff mbox series

[v3,13/15] riscv: dts: canaan: fix bus {ranges,reg} warnings

Message ID 20220629184343.3438856-14-mail@conchuod.ie (mailing list archive)
State Superseded
Headers show
Series Canaan devicetree fixes | expand

Commit Message

Conor Dooley June 29, 2022, 6:43 p.m. UTC 
From: Conor Dooley <conor.dooley@microchip.com>

The k210 devicetrees warn about missing/empty reg and/or ranges
properties:
arch/riscv/boot/dts/canaan/k210.dtsi:408.22-460.5: Warning (unit_address_vs_reg): /soc/bus@52000000: node has a unit name, but no reg or ranges property
arch/riscv/boot/dts/canaan/k210.dtsi:352.22-406.5: Warning (simple_bus_reg): /soc/bus@50400000: missing or empty reg/ranges property

Add reg and ranges properties that naively cap the buses after the
allocation of their last devices.

Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
---
 arch/riscv/boot/dts/canaan/k210.dtsi | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

Comments

Niklas Cassel June 30, 2022, 4:49 p.m. UTC | #1 
On Wed, Jun 29, 2022 at 07:43:42PM +0100, Conor Dooley wrote:
> From: Conor Dooley <conor.dooley@microchip.com>
> 
> The k210 devicetrees warn about missing/empty reg and/or ranges
> properties:
> arch/riscv/boot/dts/canaan/k210.dtsi:408.22-460.5: Warning (unit_address_vs_reg): /soc/bus@52000000: node has a unit name, but no reg or ranges property
> arch/riscv/boot/dts/canaan/k210.dtsi:352.22-406.5: Warning (simple_bus_reg): /soc/bus@50400000: missing or empty reg/ranges property
> 
> Add reg and ranges properties that naively cap the buses after the
> allocation of their last devices.
> 
> Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
> ---
>  arch/riscv/boot/dts/canaan/k210.dtsi | 9 ++++++---
>  1 file changed, 6 insertions(+), 3 deletions(-)
> 
> diff --git a/arch/riscv/boot/dts/canaan/k210.dtsi b/arch/riscv/boot/dts/canaan/k210.dtsi
> index 948dc235e39d..6a34dc4f3e51 100644
> --- a/arch/riscv/boot/dts/canaan/k210.dtsi
> +++ b/arch/riscv/boot/dts/canaan/k210.dtsi
> @@ -163,7 +163,8 @@ apb0: bus@50200000 {
>  			#address-cells = <1>;
>  			#size-cells = <1>;
>  			compatible = "simple-pm-bus";
> -			ranges;
> +			regs = <0x50200000 0x200000>;
> +			ranges = <0x50200000 0x50200000 0x200000>;

This looks wrong.

The property is called "reg" not "regs".

And I don't think that you should provide "reg" at all,
simply supplying "ranges" should be sufficient, no?


Kind regards,
Niklas

>  			clocks = <&sysclk K210_CLK_APB0>;
>  
>  			gpio1: gpio@50200000 {
> @@ -382,7 +383,8 @@ apb1: bus@50400000 {
>  			#address-cells = <1>;
>  			#size-cells = <1>;
>  			compatible = "simple-pm-bus";
> -			ranges;
> +			regs = <0x50400000 0x40100>;
> +			ranges = <0x50400000 0x50400000 0x40100>;
>  			clocks = <&sysclk K210_CLK_APB1>;
>  
>  			wdt0: watchdog@50400000 {
> @@ -437,7 +439,8 @@ apb2: bus@52000000 {
>  			#address-cells = <1>;
>  			#size-cells = <1>;
>  			compatible = "simple-pm-bus";
> -			ranges;
> +			regs = <0x52000000 0x2000200>;
> +			ranges = <0x52000000 0x52000000 0x2000200>;
>  			clocks = <&sysclk K210_CLK_APB2>;
>  
>  			spi0: spi@52000000 {
> -- 
> 2.36.1
>
Conor Dooley June 30, 2022, 5:02 p.m. UTC | #2 
On 30/06/2022 17:49, Niklas Cassel wrote:
> On Wed, Jun 29, 2022 at 07:43:42PM +0100, Conor Dooley wrote:
>> From: Conor Dooley <conor.dooley@microchip.com>
>>
>> The k210 devicetrees warn about missing/empty reg and/or ranges
>> properties:
>> arch/riscv/boot/dts/canaan/k210.dtsi:408.22-460.5: Warning (unit_address_vs_reg): /soc/bus@52000000: node has a unit name, but no reg or ranges property
>> arch/riscv/boot/dts/canaan/k210.dtsi:352.22-406.5: Warning (simple_bus_reg): /soc/bus@50400000: missing or empty reg/ranges property
>>
>> Add reg and ranges properties that naively cap the buses after the
>> allocation of their last devices.
>>
>> Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
>> ---
>>  arch/riscv/boot/dts/canaan/k210.dtsi | 9 ++++++---
>>  1 file changed, 6 insertions(+), 3 deletions(-)
>>
>> diff --git a/arch/riscv/boot/dts/canaan/k210.dtsi b/arch/riscv/boot/dts/canaan/k210.dtsi
>> index 948dc235e39d..6a34dc4f3e51 100644
>> --- a/arch/riscv/boot/dts/canaan/k210.dtsi
>> +++ b/arch/riscv/boot/dts/canaan/k210.dtsi
>> @@ -163,7 +163,8 @@ apb0: bus@50200000 {
>>  			#address-cells = <1>;
>>  			#size-cells = <1>;
>>  			compatible = "simple-pm-bus";
>> -			ranges;
>> +			regs = <0x50200000 0x200000>;
>> +			ranges = <0x50200000 0x50200000 0x200000>;
> 
> This looks wrong.
> 
> The property is called "reg" not "regs".

Yeah...

> 
> And I don't think that you should provide "reg" at all,
> simply supplying "ranges" should be sufficient, no?

I don't recall why I put the regs in, I'll drop it if
possible & respond if I can't.
IIRC, it did actually complain.

> 
> 
> Kind regards,
> Niklas
> 
>>  			clocks = <&sysclk K210_CLK_APB0>;
>>  
>>  			gpio1: gpio@50200000 {
>> @@ -382,7 +383,8 @@ apb1: bus@50400000 {
>>  			#address-cells = <1>;
>>  			#size-cells = <1>;
>>  			compatible = "simple-pm-bus";
>> -			ranges;
>> +			regs = <0x50400000 0x40100>;
>> +			ranges = <0x50400000 0x50400000 0x40100>;
>>  			clocks = <&sysclk K210_CLK_APB1>;
>>  
>>  			wdt0: watchdog@50400000 {
>> @@ -437,7 +439,8 @@ apb2: bus@52000000 {
>>  			#address-cells = <1>;
>>  			#size-cells = <1>;
>>  			compatible = "simple-pm-bus";
>> -			ranges;
>> +			regs = <0x52000000 0x2000200>;
>> +			ranges = <0x52000000 0x52000000 0x2000200>;
>>  			clocks = <&sysclk K210_CLK_APB2>;
>>  
>>  			spi0: spi@52000000 {
>> -- 
>> 2.36.1
Conor Dooley June 30, 2022, 7:31 p.m. UTC | #3 
On 30/06/2022 18:02, Conor Dooley wrote:
> 
> 
> On 30/06/2022 17:49, Niklas Cassel wrote:
>> On Wed, Jun 29, 2022 at 07:43:42PM +0100, Conor Dooley wrote:
>>> From: Conor Dooley <conor.dooley@microchip.com>
>>>
>>> The k210 devicetrees warn about missing/empty reg and/or ranges
>>> properties:
>>> arch/riscv/boot/dts/canaan/k210.dtsi:408.22-460.5: Warning (unit_address_vs_reg): /soc/bus@52000000: node has a unit name, but no reg or ranges property
>>> arch/riscv/boot/dts/canaan/k210.dtsi:352.22-406.5: Warning (simple_bus_reg): /soc/bus@50400000: missing or empty reg/ranges property
>>>
>>> Add reg and ranges properties that naively cap the buses after the
>>> allocation of their last devices.
>>>
>>> Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
>>> ---
>>>  arch/riscv/boot/dts/canaan/k210.dtsi | 9 ++++++---
>>>  1 file changed, 6 insertions(+), 3 deletions(-)
>>>
>>> diff --git a/arch/riscv/boot/dts/canaan/k210.dtsi b/arch/riscv/boot/dts/canaan/k210.dtsi
>>> index 948dc235e39d..6a34dc4f3e51 100644
>>> --- a/arch/riscv/boot/dts/canaan/k210.dtsi
>>> +++ b/arch/riscv/boot/dts/canaan/k210.dtsi
>>> @@ -163,7 +163,8 @@ apb0: bus@50200000 {
>>>  			#address-cells = <1>;
>>>  			#size-cells = <1>;
>>>  			compatible = "simple-pm-bus";
>>> -			ranges;
>>> +			regs = <0x50200000 0x200000>;
>>> +			ranges = <0x50200000 0x50200000 0x200000>;
>>
>> This looks wrong.
>>
>> The property is called "reg" not "regs".
> 
> Yeah...
> 
>>
>> And I don't think that you should provide "reg" at all,
>> simply supplying "ranges" should be sufficient, no?
> 
> I don't recall why I put the regs in, I'll drop it if
> possible & respond if I can't.
> IIRC, it did actually complain.

It does not complain. Good spot, thanks.
I'll drop "regs" for v4.
Conor.
diff mbox series

Patch

diff --git a/arch/riscv/boot/dts/canaan/k210.dtsi b/arch/riscv/boot/dts/canaan/k210.dtsi
index 948dc235e39d..6a34dc4f3e51 100644
--- a/arch/riscv/boot/dts/canaan/k210.dtsi
+++ b/arch/riscv/boot/dts/canaan/k210.dtsi
@@ -163,7 +163,8 @@  apb0: bus@50200000 {
 			#address-cells = <1>;
 			#size-cells = <1>;
 			compatible = "simple-pm-bus";
-			ranges;
+			regs = <0x50200000 0x200000>;
+			ranges = <0x50200000 0x50200000 0x200000>;
 			clocks = <&sysclk K210_CLK_APB0>;
 
 			gpio1: gpio@50200000 {
@@ -382,7 +383,8 @@  apb1: bus@50400000 {
 			#address-cells = <1>;
 			#size-cells = <1>;
 			compatible = "simple-pm-bus";
-			ranges;
+			regs = <0x50400000 0x40100>;
+			ranges = <0x50400000 0x50400000 0x40100>;
 			clocks = <&sysclk K210_CLK_APB1>;
 
 			wdt0: watchdog@50400000 {
@@ -437,7 +439,8 @@  apb2: bus@52000000 {
 			#address-cells = <1>;
 			#size-cells = <1>;
 			compatible = "simple-pm-bus";
-			ranges;
+			regs = <0x52000000 0x2000200>;
+			ranges = <0x52000000 0x52000000 0x2000200>;
 			clocks = <&sysclk K210_CLK_APB2>;
 
 			spi0: spi@52000000 {