[PATCH v2 1/3] spi/rockchip: add rk3036/rk3228/rk3368 SoCs for spi document

[PATCH v2 1/3] spi/rockchip: add rk3036/rk3228/rk3368 SoCs for spi document

[Caesar Wang]

We had supported the rk3036/rk3066/rk3188/rk3228/rk3288/rk3368/rk3399
family SoCs in linux kernel.

Let's add the other SoCs, in order to a better understanding from the
rockchip spi document.

Signed-off-by: Caesar Wang <wxt@rock-chips.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Brown <broonie@kernel.org>
Cc: Heiko Stuebner <heiko@sntech.de>
Cc: linux-rockchip@lists.infradead.org

---

Changes in v2:
- Drop the fallbacks, As Heiko comments on https://patchwork.kernel.org/patch/9127881/
- update commit

 Documentation/devicetree/bindings/spi/spi-rockchip.txt | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/Documentation/devicetree/bindings/spi/spi-rockchip.txt b/Documentation/devicetree/bindings/spi/spi-rockchip.txt
index 1b14d69..d2ca153 100644
--- a/Documentation/devicetree/bindings/spi/spi-rockchip.txt
+++ b/Documentation/devicetree/bindings/spi/spi-rockchip.txt
@@ -6,10 +6,13 @@ and display controllers using the SPI communication interface.
 Required Properties:
 
 - compatible: should be one of the following.
-    "rockchip,rk3066-spi" for rk3066.
-    "rockchip,rk3188-spi", "rockchip,rk3066-spi" for rk3188.
-    "rockchip,rk3288-spi", "rockchip,rk3066-spi" for rk3288.
-    "rockchip,rk3399-spi", "rockchip,rk3066-spi" for rk3399.
+    "rockchip,rk3036-spi" for rk3036 SoCS.
+    "rockchip,rk3066-spi" for rk3066 SoCs.
+    "rockchip,rk3188-spi" for rk3188 SoCs.
+    "rockchip,rk3228-spi" for rk3228 SoCS.
+    "rockchip,rk3288-spi" for rk3288 SoCs.
+    "rockchip,rk3368-spi" for rk3368 SoCs.
+    "rockchip,rk3399-spi" for rk3399 SoCs.
 - reg: physical base address of the controller and length of memory mapped
        region.
 - interrupts: The interrupt number to the cpu. The interrupt specifier format
-- 
2.7.4

[PATCH v2 2/3] spi/rockchip: add the rk3036/rk3228/rk3368 to match for driver

[Caesar Wang]

In gerenal, the "rockchip,rockchip-spi" string will match the dts
that's great in spi driver. After all the most of rockchip SoCs ar
same spi controller.

Then, we should keep the old style to match the dts various.

Signed-off-by: Caesar Wang <wxt@rock-chips.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Heiko Stuebner <heiko@sntech.de>
Cc: linux-rockchip@lists.infradead.org
---

Changes in v2: None

 drivers/spi/spi-rockchip.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/spi/spi-rockchip.c b/drivers/spi/spi-rockchip.c
index 6c6c001..dd08b68 100644
--- a/drivers/spi/spi-rockchip.c
+++ b/drivers/spi/spi-rockchip.c
@@ -893,9 +893,12 @@ static const struct dev_pm_ops rockchip_spi_pm = {
 };
 
 static const struct of_device_id rockchip_spi_dt_match[] = {
+	{ .compatible = "rockchip,rk3036-spi", },
 	{ .compatible = "rockchip,rk3066-spi", },
 	{ .compatible = "rockchip,rk3188-spi", },
+	{ .compatible = "rockchip,rk3228-spi", },
 	{ .compatible = "rockchip,rk3288-spi", },
+	{ .compatible = "rockchip,rk3368-spi", },
 	{ .compatible = "rockchip,rk3399-spi", },
 	{ },
 };
-- 
2.7.4

[PATCH v2 3/3] ARM: dts: rockchip: fixes the spi compatible for rk3036

[Caesar Wang]

That's seem the incorrect string to match the spi driver.

Fixes commit f629fcfab2cd
("ARM: dts: rockchip: support the spi for rk3036")

Signed-off-by: Caesar Wang <wxt@rock-chips.com>
Cc: Heiko Stuebner <heiko@sntech.de>
Cc: linux-rockchip@lists.infradead.org

---

Changes in v2: None

 arch/arm/boot/dts/rk3036.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/rk3036.dtsi b/arch/arm/boot/dts/rk3036.dtsi
index d0f4bb7..a30700a 100644
--- a/arch/arm/boot/dts/rk3036.dtsi
+++ b/arch/arm/boot/dts/rk3036.dtsi
@@ -431,7 +431,7 @@
 	};
 
 	spi: spi@20074000 {
-		compatible = "rockchip,rockchip-spi";
+		compatible = "rockchip,rk3036-spi";
 		reg = <0x20074000 0x1000>;
 		interrupts = <GIC_SPI 23 IRQ_TYPE_LEVEL_HIGH>;
 		clocks =<&cru PCLK_SPI>, <&cru SCLK_SPI>;
-- 
2.7.4

Re: [PATCH v2 3/3] ARM: dts: rockchip: fixes the spi compatible for rk3036

[Shawn Lin]

在 2016/5/20 7:56, Caesar Wang 写道:
> That's seem the incorrect string to match the spi driver.
>

Will it break the backward compatibility for some dtb if not
falling back to "rockchip,rockchip-spi" ?

> Fixes commit f629fcfab2cd
> ("ARM: dts: rockchip: support the spi for rk3036")
>
> Signed-off-by: Caesar Wang <wxt@rock-chips.com>
> Cc: Heiko Stuebner <heiko@sntech.de>
> Cc: linux-rockchip@lists.infradead.org
>
> ---
>
> Changes in v2: None
>
>  arch/arm/boot/dts/rk3036.dtsi | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/arm/boot/dts/rk3036.dtsi b/arch/arm/boot/dts/rk3036.dtsi
> index d0f4bb7..a30700a 100644
> --- a/arch/arm/boot/dts/rk3036.dtsi
> +++ b/arch/arm/boot/dts/rk3036.dtsi
> @@ -431,7 +431,7 @@
>  	};
>
>  	spi: spi@20074000 {
> -		compatible = "rockchip,rockchip-spi";
> +		compatible = "rockchip,rk3036-spi";
>  		reg = <0x20074000 0x1000>;
>  		interrupts = <GIC_SPI 23 IRQ_TYPE_LEVEL_HIGH>;
>  		clocks =<&cru PCLK_SPI>, <&cru SCLK_SPI>;
>

Re: [PATCH v2 3/3] ARM: dts: rockchip: fixes the spi compatible for rk3036

[Caesar Wang]

于 2016年05月20日 20:35, Shawn Lin 写道:
> 在 2016/5/20 7:56, Caesar Wang 写道:
>> That's seem the incorrect string to match the spi driver.
>>
>
> Will it break the backward compatibility for some dtb if not
> falling back to "rockchip,rockchip-spi" ?

The rk3036 shouldn't work if you read the driver/spi/spi-rockchip.c.
since the "rockchip,rockchip-spi" is *not* exist in linux kernel.

..
  static const struct of_device_id rockchip_spi_dt_match[] = {
     { .compatible = "rockchip,rk3066-spi", },
     { .compatible = "rockchip,rk3188-spi", },
     { .compatible = "rockchip,rk3288-spi", },
     { .compatible = "rockchip,rk3399-spi", },
     { },
}
..


-Caesar

>
>> Fixes commit f629fcfab2cd
>> ("ARM: dts: rockchip: support the spi for rk3036")
>>
>> Signed-off-by: Caesar Wang <wxt@rock-chips.com>
>> Cc: Heiko Stuebner <heiko@sntech.de>
>> Cc: linux-rockchip@lists.infradead.org
>>
>> ---
>>
>> Changes in v2: None
>>
>>  arch/arm/boot/dts/rk3036.dtsi | 2 +-
>>  1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/arch/arm/boot/dts/rk3036.dtsi 
>> b/arch/arm/boot/dts/rk3036.dtsi
>> index d0f4bb7..a30700a 100644
>> --- a/arch/arm/boot/dts/rk3036.dtsi
>> +++ b/arch/arm/boot/dts/rk3036.dtsi
>> @@ -431,7 +431,7 @@
>>      };
>>
>>      spi: spi@20074000 {
>> -        compatible = "rockchip,rockchip-spi";
>> +        compatible = "rockchip,rk3036-spi";
>>          reg = <0x20074000 0x1000>;
>>          interrupts = <GIC_SPI 23 IRQ_TYPE_LEVEL_HIGH>;
>>          clocks =<&cru PCLK_SPI>, <&cru SCLK_SPI>;
>>
>
>
>
>

-- 
caesar wang | software engineer | wxt@rock-chip.com

Re: [PATCH v2 3/3] ARM: dts: rockchip: fixes the spi compatible for rk3036

[Heiko Stuebner]

Am Freitag, 20. Mai 2016, 20:35:53 schrieb Shawn Lin:
> 在 2016/5/20 7:56, Caesar Wang 写道:
> > That's seem the incorrect string to match the spi driver.
> 
> Will it break the backward compatibility for some dtb if not
> falling back to "rockchip,rockchip-spi" ?

in what dtb did you see "rockchip,rockchip-spi"?
I.e. it isn't part of any current _mainline_ devicetree files.


Heiko

> 
> > Fixes commit f629fcfab2cd
> > ("ARM: dts: rockchip: support the spi for rk3036")
> > 
> > Signed-off-by: Caesar Wang <wxt@rock-chips.com>
> > Cc: Heiko Stuebner <heiko@sntech.de>
> > Cc: linux-rockchip@lists.infradead.org
> > 
> > ---
> > 
> > Changes in v2: None
> > 
> >  arch/arm/boot/dts/rk3036.dtsi | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> > 
> > diff --git a/arch/arm/boot/dts/rk3036.dtsi
> > b/arch/arm/boot/dts/rk3036.dtsi index d0f4bb7..a30700a 100644
> > --- a/arch/arm/boot/dts/rk3036.dtsi
> > +++ b/arch/arm/boot/dts/rk3036.dtsi
> > @@ -431,7 +431,7 @@
> > 
> >  	};
> >  	
> >  	spi: spi@20074000 {
> > 
> > -		compatible = "rockchip,rockchip-spi";
> > +		compatible = "rockchip,rk3036-spi";
> > 
> >  		reg = <0x20074000 0x1000>;
> >  		interrupts = <GIC_SPI 23 IRQ_TYPE_LEVEL_HIGH>;
> >  		clocks =<&cru PCLK_SPI>, <&cru SCLK_SPI>;

Re: [PATCH v2 3/3] ARM: dts: rockchip: fixes the spi compatible for rk3036

[Shawn Lin]

在 2016/5/20 20:57, Caesar Wang 写道:
>
> 于 2016年05月20日 20:35, Shawn Lin 写道:
>> 在 2016/5/20 7:56, Caesar Wang 写道:
>>> That's seem the incorrect string to match the spi driver.
>>>
>>
>> Will it break the backward compatibility for some dtb if not
>> falling back to "rockchip,rockchip-spi" ?
>
> The rk3036 shouldn't work if you read the driver/spi/spi-rockchip.c.
> since the "rockchip,rockchip-spi" is *not* exist in linux kernel.
>

okay, so that means we take "rockchip,rockchip-spi" from local branch
by mistake?

> ..
>  static const struct of_device_id rockchip_spi_dt_match[] = {
>     { .compatible = "rockchip,rk3066-spi", },
>     { .compatible = "rockchip,rk3188-spi", },
>     { .compatible = "rockchip,rk3288-spi", },
>     { .compatible = "rockchip,rk3399-spi", },
>     { },
> }
> ..
>
>
> -Caesar
>
>>
>>> Fixes commit f629fcfab2cd
>>> ("ARM: dts: rockchip: support the spi for rk3036")
>>>
>>> Signed-off-by: Caesar Wang <wxt@rock-chips.com>
>>> Cc: Heiko Stuebner <heiko@sntech.de>
>>> Cc: linux-rockchip@lists.infradead.org
>>>
>>> ---
>>>
>>> Changes in v2: None
>>>
>>>  arch/arm/boot/dts/rk3036.dtsi | 2 +-
>>>  1 file changed, 1 insertion(+), 1 deletion(-)
>>>
>>> diff --git a/arch/arm/boot/dts/rk3036.dtsi
>>> b/arch/arm/boot/dts/rk3036.dtsi
>>> index d0f4bb7..a30700a 100644
>>> --- a/arch/arm/boot/dts/rk3036.dtsi
>>> +++ b/arch/arm/boot/dts/rk3036.dtsi
>>> @@ -431,7 +431,7 @@
>>>      };
>>>
>>>      spi: spi@20074000 {
>>> -        compatible = "rockchip,rockchip-spi";
>>> +        compatible = "rockchip,rk3036-spi";
>>>          reg = <0x20074000 0x1000>;
>>>          interrupts = <GIC_SPI 23 IRQ_TYPE_LEVEL_HIGH>;
>>>          clocks =<&cru PCLK_SPI>, <&cru SCLK_SPI>;
>>>
>>
>>
>>
>>
>


-- 
Best Regards
Shawn Lin

Re: [PATCH v2 3/3] ARM: dts: rockchip: fixes the spi compatible for rk3036

[Shawn Lin]

On 2016/5/20 20:58, Heiko Stuebner wrote:
> Am Freitag, 20. Mai 2016, 20:35:53 schrieb Shawn Lin:
>> 在 2016/5/20 7:56, Caesar Wang 写道:
>>> That's seem the incorrect string to match the spi driver.
>>
>> Will it break the backward compatibility for some dtb if not
>> falling back to "rockchip,rockchip-spi" ?
>
> in what dtb did you see "rockchip,rockchip-spi"?

I'm not 100% sure, but I remember we toke this name on local
branch for rk3036 when we were developing this Soc.

> I.e. it isn't part of any current _mainline_ devicetree files.
>

Caesar, Could you check our develop-3.10 branch to see if it does
exist?

Anyway, "rockchip,rockchip-spi" isn't a part of mainline dt property.


>
> Heiko
>
>>
>>> Fixes commit f629fcfab2cd
>>> ("ARM: dts: rockchip: support the spi for rk3036")
>>>
>>> Signed-off-by: Caesar Wang <wxt@rock-chips.com>
>>> Cc: Heiko Stuebner <heiko@sntech.de>
>>> Cc: linux-rockchip@lists.infradead.org
>>>
>>> ---
>>>
>>> Changes in v2: None
>>>
>>>  arch/arm/boot/dts/rk3036.dtsi | 2 +-
>>>  1 file changed, 1 insertion(+), 1 deletion(-)
>>>
>>> diff --git a/arch/arm/boot/dts/rk3036.dtsi
>>> b/arch/arm/boot/dts/rk3036.dtsi index d0f4bb7..a30700a 100644
>>> --- a/arch/arm/boot/dts/rk3036.dtsi
>>> +++ b/arch/arm/boot/dts/rk3036.dtsi
>>> @@ -431,7 +431,7 @@
>>>
>>>  	};
>>>  	
>>>  	spi: spi@20074000 {
>>>
>>> -		compatible = "rockchip,rockchip-spi";
>>> +		compatible = "rockchip,rk3036-spi";
>>>
>>>  		reg = <0x20074000 0x1000>;
>>>  		interrupts = <GIC_SPI 23 IRQ_TYPE_LEVEL_HIGH>;
>>>  		clocks =<&cru PCLK_SPI>, <&cru SCLK_SPI>;
>
>


-- 
Best Regards
Shawn Lin