diff mbox series

[v3,2/8] dt-bindings: PCI: renesas,pci-rcar-gen2: Add device tree support for r9a06g032

Message ID 20220422120850.769480-3-herve.codina@bootlin.com (mailing list archive)
State Superseded
Delegated to: Geert Uytterhoeven
Headers show
Series RZN1 USB Host support | expand

Commit Message

Herve Codina April 22, 2022, 12:08 p.m. UTC
Add internal PCI bridge support for the r9a06g032 SOC. The Renesas
RZ/N1D (R9A06G032) internal PCI bridge is compatible with the one
present in the R-Car Gen2 family.
Compared to the R-Car Gen2 family, it needs three clocks instead of
one.

Signed-off-by: Herve Codina <herve.codina@bootlin.com>
---
 .../bindings/pci/renesas,pci-rcar-gen2.yaml   | 43 ++++++++++++++++---
 1 file changed, 37 insertions(+), 6 deletions(-)

Comments

Rob Herring (Arm) April 26, 2022, 12:46 a.m. UTC | #1
On Fri, 22 Apr 2022 14:08:44 +0200, Herve Codina wrote:
> Add internal PCI bridge support for the r9a06g032 SOC. The Renesas
> RZ/N1D (R9A06G032) internal PCI bridge is compatible with the one
> present in the R-Car Gen2 family.
> Compared to the R-Car Gen2 family, it needs three clocks instead of
> one.
> 
> Signed-off-by: Herve Codina <herve.codina@bootlin.com>
> ---
>  .../bindings/pci/renesas,pci-rcar-gen2.yaml   | 43 ++++++++++++++++---
>  1 file changed, 37 insertions(+), 6 deletions(-)
> 

Reviewed-by: Rob Herring <robh@kernel.org>
Geert Uytterhoeven April 27, 2022, 3:15 p.m. UTC | #2
Hi Hervé,

On Fri, Apr 22, 2022 at 2:09 PM Herve Codina <herve.codina@bootlin.com> wrote:
> Add internal PCI bridge support for the r9a06g032 SOC. The Renesas
> RZ/N1D (R9A06G032) internal PCI bridge is compatible with the one
> present in the R-Car Gen2 family.
> Compared to the R-Car Gen2 family, it needs three clocks instead of
> one.
>
> Signed-off-by: Herve Codina <herve.codina@bootlin.com>

Thanks for your patch!

> --- a/Documentation/devicetree/bindings/pci/renesas,pci-rcar-gen2.yaml
> +++ b/Documentation/devicetree/bindings/pci/renesas,pci-rcar-gen2.yaml
> @@ -113,6 +113,37 @@ required:
>    - "#size-cells"
>    - "#interrupt-cells"
>
> +if:
> +  properties:
> +    compatible:
> +      contains:
> +        enum:
> +          - renesas,pci-rzn1
> +
> +then:
> +  properties:
> +    clocks:
> +      items:
> +        - description: Internal bus clock (AHB) for HOST
> +        - description: Internal bus clock (AHB) Power Management
> +        - description: PCI clock for USB subsystem
> +    clock-names:
> +      items:
> +        - const: hclk_usbh
> +        - const: hclk_usbpm
> +        - const: clk_pci_usb

These are the provider names.
I think they should use the consumer names: usb_hclkh, usb_hclkpm,
and usb_pciclk.

The rest looks good to me.

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
Herve Codina April 28, 2022, 9:08 a.m. UTC | #3
Hi Geert,

On Wed, 27 Apr 2022 17:15:15 +0200
Geert Uytterhoeven <geert@linux-m68k.org> wrote:

> Hi Hervé,
> 
> On Fri, Apr 22, 2022 at 2:09 PM Herve Codina <herve.codina@bootlin.com> wrote:
> > Add internal PCI bridge support for the r9a06g032 SOC. The Renesas
> > RZ/N1D (R9A06G032) internal PCI bridge is compatible with the one
> > present in the R-Car Gen2 family.
> > Compared to the R-Car Gen2 family, it needs three clocks instead of
> > one.
> >
> > Signed-off-by: Herve Codina <herve.codina@bootlin.com>  
> 
> Thanks for your patch!
> 
> > --- a/Documentation/devicetree/bindings/pci/renesas,pci-rcar-gen2.yaml
> > +++ b/Documentation/devicetree/bindings/pci/renesas,pci-rcar-gen2.yaml
> > @@ -113,6 +113,37 @@ required:
> >    - "#size-cells"
> >    - "#interrupt-cells"
> >
> > +if:
> > +  properties:
> > +    compatible:
> > +      contains:
> > +        enum:
> > +          - renesas,pci-rzn1
> > +
> > +then:
> > +  properties:
> > +    clocks:
> > +      items:
> > +        - description: Internal bus clock (AHB) for HOST
> > +        - description: Internal bus clock (AHB) Power Management
> > +        - description: PCI clock for USB subsystem
> > +    clock-names:
> > +      items:
> > +        - const: hclk_usbh
> > +        - const: hclk_usbpm
> > +        - const: clk_pci_usb  
> 
> These are the provider names.
> I think they should use the consumer names: usb_hclkh, usb_hclkpm,
> and usb_pciclk.

Yes, it makes sense.
I will changed in v4.

> 
> The rest looks good to me.

Perfect.

Thanks for the review,
Hervé
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/pci/renesas,pci-rcar-gen2.yaml b/Documentation/devicetree/bindings/pci/renesas,pci-rcar-gen2.yaml
index 494eb975c146..c29c46533e1b 100644
--- a/Documentation/devicetree/bindings/pci/renesas,pci-rcar-gen2.yaml
+++ b/Documentation/devicetree/bindings/pci/renesas,pci-rcar-gen2.yaml
@@ -32,6 +32,10 @@  properties:
               - renesas,pci-r8a7793      # R-Car M2-N
               - renesas,pci-r8a7794      # R-Car E2
           - const: renesas,pci-rcar-gen2 # R-Car Gen2 and RZ/G1
+      - items:
+          - enum:
+              - renesas,pci-r9a06g032     # RZ/N1D
+          - const: renesas,pci-rzn1       # RZ/N1
 
   reg:
     items:
@@ -41,13 +45,9 @@  properties:
   interrupts:
     maxItems: 1
 
-  clocks:
-    items:
-      - description: Device clock
+  clocks: true
 
-  clock-names:
-    items:
-      - const: pclk
+  clock-names: true
 
   resets:
     maxItems: 1
@@ -113,6 +113,37 @@  required:
   - "#size-cells"
   - "#interrupt-cells"
 
+if:
+  properties:
+    compatible:
+      contains:
+        enum:
+          - renesas,pci-rzn1
+
+then:
+  properties:
+    clocks:
+      items:
+        - description: Internal bus clock (AHB) for HOST
+        - description: Internal bus clock (AHB) Power Management
+        - description: PCI clock for USB subsystem
+    clock-names:
+      items:
+        - const: hclk_usbh
+        - const: hclk_usbpm
+        - const: clk_pci_usb
+  required:
+    - clock-names
+
+else:
+  properties:
+    clocks:
+      items:
+        - description: Device clock
+    clock-names:
+      items:
+        - const: pclk
+
 unevaluatedProperties: false
 
 examples: