[PATCH v2 0/2] Fix r9a09g011 specific I2C compatible string

[PATCH v2 0/2] Fix r9a09g011 specific I2C compatible string

[Fabrizio Castro]

Dear All,

The preferred form for Renesas' compatible strings is:
"<vendor>,<family>-<module>"

Somehow the compatible string for the r9a09g011 I2C IP was upstreamed
as renesas,i2c-r9a09g011 instead of renesas,r9a09g011-i2c, which
is really confusing, especially considering the generic fallback
is renesas,rzv2m-i2c.

Since it's early days for r9a09g011.dtsi, and compatible
renesas,i2c-r9a09g011 isn't being actively used at the moment,
I think it's safe to change to make compatible strings less
confusing.

v2 - Improved changelogs

Thanks,
Fab
Fabrizio Castro (2):
  dt-bindings: i2c: renesas,rzv2m: Fix SoC specific string
  arm64: dts: renesas: r9a09g011: Fix I2C SoC specific strings

 Documentation/devicetree/bindings/i2c/renesas,rzv2m.yaml | 4 ++--
 arch/arm64/boot/dts/renesas/r9a09g011.dtsi               | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

-- 
2.34.1

[PATCH v2 1/2] dt-bindings: i2c: renesas,rzv2m: Fix SoC specific string

[Fabrizio Castro]

The preferred form for Renesas' compatible strings is:
"<vendor>,<family>-<module>"

Somehow the compatible string for the r9a09g011 I2C IP was upstreamed
as renesas,i2c-r9a09g011 instead of renesas,r9a09g011-i2c, which
is really confusing, especially considering the generic fallback
is renesas,rzv2m-i2c.

The first user of renesas,i2c-r9a09g011 in the kernel is not yet in
a kernel release, it will be in v6.1, therefore it can still be
fixed in v6.1.
Even if we don't fix it before v6.2, I don't think there is any
harm in making such a change.

s/renesas,i2c-r9a09g011/renesas,r9a09g011-i2c/g for consistency.

Fixes: ba7a4d15e2c4 ("dt-bindings: i2c: Document RZ/V2M I2C controller")
Signed-off-by: Fabrizio Castro <fabrizio.castro.jz@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
---

v2 - Improved changelog, as suggested by Geert and Krzysztof

 Documentation/devicetree/bindings/i2c/renesas,rzv2m.yaml | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/i2c/renesas,rzv2m.yaml b/Documentation/devicetree/bindings/i2c/renesas,rzv2m.yaml
index c46378efc123..92e899905ef8 100644
--- a/Documentation/devicetree/bindings/i2c/renesas,rzv2m.yaml
+++ b/Documentation/devicetree/bindings/i2c/renesas,rzv2m.yaml
@@ -16,7 +16,7 @@ properties:
   compatible:
     items:
       - enum:
-          - renesas,i2c-r9a09g011  # RZ/V2M
+          - renesas,r9a09g011-i2c  # RZ/V2M
       - const: renesas,rzv2m-i2c
 
   reg:
@@ -66,7 +66,7 @@ examples:
     #include <dt-bindings/interrupt-controller/arm-gic.h>
 
     i2c0: i2c@a4030000 {
-        compatible = "renesas,i2c-r9a09g011", "renesas,rzv2m-i2c";
+        compatible = "renesas,r9a09g011-i2c", "renesas,rzv2m-i2c";
         reg = <0xa4030000 0x80>;
         interrupts = <GIC_SPI 232 IRQ_TYPE_EDGE_RISING>,
                      <GIC_SPI 236 IRQ_TYPE_EDGE_RISING>;
-- 
2.34.1

Re: [PATCH v2 1/2] dt-bindings: i2c: renesas,rzv2m: Fix SoC specific string

[Krzysztof Kozlowski]

On 07/11/2022 17:50, Fabrizio Castro wrote:
> The preferred form for Renesas' compatible strings is:
> "<vendor>,<family>-<module>"
> 
> Somehow the compatible string for the r9a09g011 I2C IP was upstreamed
> as renesas,i2c-r9a09g011 instead of renesas,r9a09g011-i2c, which
> is really confusing, especially considering the generic fallback
> is renesas,rzv2m-i2c.
> 
> The first user of renesas,i2c-r9a09g011 in the kernel is not yet in
> a kernel release, it will be in v6.1, therefore it can still be
> fixed in v6.1.
> Even if we don't fix it before v6.2, I don't think there is any
> harm in making such a change.
> 
> s/renesas,i2c-r9a09g011/renesas,r9a09g011-i2c/g for consistency.
> 
> Fixes: ba7a4d15e2c4 ("dt-bindings: i2c: Document RZ/V2M I2C controller")
> Signed-off-by: Fabrizio Castro <fabrizio.castro.jz@renesas.com>

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

Best regards,
Krzysztof

RE: [PATCH v2 1/2] dt-bindings: i2c: renesas,rzv2m: Fix SoC specific string

[Fabrizio Castro]

Dear All,

This patch has been reviewed by both Geert Uytterhoeven and Krzysztof
Kozlowski. The corresponding device tree patch has already been
taken, I was hoping this patch could be applied to v6.3?

Thanks,
Fab

> 
> On 07/11/2022 17:50, Fabrizio Castro wrote:
> > The preferred form for Renesas' compatible strings is:
> > "<vendor>,<family>-<module>"
> >
> > Somehow the compatible string for the r9a09g011 I2C IP was upstreamed
> > as renesas,i2c-r9a09g011 instead of renesas,r9a09g011-i2c, which
> > is really confusing, especially considering the generic fallback
> > is renesas,rzv2m-i2c.
> >
> > The first user of renesas,i2c-r9a09g011 in the kernel is not yet in
> > a kernel release, it will be in v6.1, therefore it can still be
> > fixed in v6.1.
> > Even if we don't fix it before v6.2, I don't think there is any
> > harm in making such a change.
> >
> > s/renesas,i2c-r9a09g011/renesas,r9a09g011-i2c/g for consistency.
> >
> > Fixes: ba7a4d15e2c4 ("dt-bindings: i2c: Document RZ/V2M I2C controller")
> > Signed-off-by: Fabrizio Castro <fabrizio.castro.jz@renesas.com>
> 
> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
> 
> Best regards,
> Krzysztof

Re: [PATCH v2 1/2] dt-bindings: i2c: renesas,rzv2m: Fix SoC specific string

[Wolfram Sang]

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> This patch has been reviewed by both Geert Uytterhoeven and Krzysztof
> Kozlowski. The corresponding device tree patch has already been
> taken, I was hoping this patch could be applied to v6.3?

linux-i2c was not on CC, so the patch was not in I2C patchwork. Thus, it
was not on my list.


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RE: [PATCH v2 1/2] dt-bindings: i2c: renesas,rzv2m: Fix SoC specific string

[Fabrizio Castro]

Hi Wolfram,

Thanks for your reply.

> 
> 
> > This patch has been reviewed by both Geert Uytterhoeven and
> Krzysztof
> > Kozlowski. The corresponding device tree patch has already been
> > taken, I was hoping this patch could be applied to v6.3?
> 
> linux-i2c was not on CC, so the patch was not in I2C patchwork. Thus,
> it
> was not on my list.

Apologies for that, I'll resend it with linux-i2c in copy this time.

Thanks,
Fab

[PATCH v2 2/2] arm64: dts: renesas: r9a09g011: Fix I2C SoC specific strings

[Fabrizio Castro]

The preferred form for Renesas' compatible strings is:
"<vendor>,<family>-<module>"

Somehow the compatible string for the r9a09g011 I2C IP was upstreamed
as renesas,i2c-r9a09g011 instead of renesas,r9a09g011-i2c, which
is really confusing, especially considering the generic fallback
is renesas,rzv2m-i2c.

The first user of renesas,i2c-r9a09g011 in the kernel is not yet in
a kernel release, it will be in v6.1, therefore it can still be
fixed in v6.1.
Even if we don't fix it before v6.2, I don't think there is any
harm in making such a change.

s/renesas,i2c-r9a09g011/renesas,r9a09g011-i2c/g for consistency.

Fixes: 54ac6794df9d ("arm64: dts: renesas: r9a09g011: Add i2c nodes")
Signed-off-by: Fabrizio Castro <fabrizio.castro.jz@renesas.com>
---

v2 - Improved changelog, as suggested by Geert and Krzysztof

 arch/arm64/boot/dts/renesas/r9a09g011.dtsi | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/renesas/r9a09g011.dtsi b/arch/arm64/boot/dts/renesas/r9a09g011.dtsi
index 1948d2e6bcae..2ccd48ee9880 100644
--- a/arch/arm64/boot/dts/renesas/r9a09g011.dtsi
+++ b/arch/arm64/boot/dts/renesas/r9a09g011.dtsi
@@ -126,7 +126,7 @@ cpg: clock-controller@a3500000 {
 		i2c0: i2c@a4030000 {
 			#address-cells = <1>;
 			#size-cells = <0>;
-			compatible = "renesas,i2c-r9a09g011", "renesas,rzv2m-i2c";
+			compatible = "renesas,r9a09g011-i2c", "renesas,rzv2m-i2c";
 			reg = <0 0xa4030000 0 0x80>;
 			interrupts = <GIC_SPI 232 IRQ_TYPE_EDGE_RISING>,
 				     <GIC_SPI 236 IRQ_TYPE_EDGE_RISING>;
@@ -140,7 +140,7 @@ i2c0: i2c@a4030000 {
 		i2c2: i2c@a4030100 {
 			#address-cells = <1>;
 			#size-cells = <0>;
-			compatible = "renesas,i2c-r9a09g011", "renesas,rzv2m-i2c";
+			compatible = "renesas,r9a09g011-i2c", "renesas,rzv2m-i2c";
 			reg = <0 0xa4030100 0 0x80>;
 			interrupts = <GIC_SPI 234 IRQ_TYPE_EDGE_RISING>,
 				     <GIC_SPI 238 IRQ_TYPE_EDGE_RISING>;
-- 
2.34.1

Re: [PATCH v2 2/2] arm64: dts: renesas: r9a09g011: Fix I2C SoC specific strings

[Geert Uytterhoeven]

On Mon, Nov 7, 2022 at 5:50 PM Fabrizio Castro
<fabrizio.castro.jz@renesas.com> wrote:
> The preferred form for Renesas' compatible strings is:
> "<vendor>,<family>-<module>"
>
> Somehow the compatible string for the r9a09g011 I2C IP was upstreamed
> as renesas,i2c-r9a09g011 instead of renesas,r9a09g011-i2c, which
> is really confusing, especially considering the generic fallback
> is renesas,rzv2m-i2c.
>
> The first user of renesas,i2c-r9a09g011 in the kernel is not yet in
> a kernel release, it will be in v6.1, therefore it can still be
> fixed in v6.1.
> Even if we don't fix it before v6.2, I don't think there is any
> harm in making such a change.
>
> s/renesas,i2c-r9a09g011/renesas,r9a09g011-i2c/g for consistency.
>
> Fixes: 54ac6794df9d ("arm64: dts: renesas: r9a09g011: Add i2c nodes")
> Signed-off-by: Fabrizio Castro <fabrizio.castro.jz@renesas.com>
> ---
>
> v2 - Improved changelog, as suggested by Geert and Krzysztof

Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
i.e. will queue in renesas-devel for v6.2.

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds