diff mbox series

dt-bindings: usb: renesas,usb-xhci: convert to YAML

Message ID 1592219989-28631-1-git-send-email-yoshihiro.shimoda.uh@renesas.com
State Superseded
Headers show
Series dt-bindings: usb: renesas,usb-xhci: convert to YAML | expand

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Commit Message

Yoshihiro Shimoda June 15, 2020, 11:19 a.m. UTC
Convert renesas related part of usb-xhci to YAML.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
---
 .../devicetree/bindings/usb/renesas,usb-xhci.yaml  | 84 ++++++++++++++++++++++
 Documentation/devicetree/bindings/usb/usb-xhci.txt | 18 -----
 2 files changed, 84 insertions(+), 18 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/usb/renesas,usb-xhci.yaml

Comments

Geert Uytterhoeven June 18, 2020, 7:52 a.m. UTC | #1
Hi Shimoda-san,

On Mon, Jun 15, 2020 at 1:21 PM Yoshihiro Shimoda
<yoshihiro.shimoda.uh@renesas.com> wrote:
> Convert renesas related part of usb-xhci to YAML.
>
> Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>

Thanks for your patch!

[reordering diff for easier commenting]

> --- a/Documentation/devicetree/bindings/usb/usb-xhci.txt
> +++ b/Documentation/devicetree/bindings/usb/usb-xhci.txt
> @@ -7,24 +7,6 @@ Required properties:
>      - "marvell,armada3700-xhci" for Armada 37xx SoCs
>      - "marvell,armada-375-xhci" for Armada 375 SoCs
>      - "marvell,armada-380-xhci" for Armada 38x SoCs
> -    - "renesas,xhci-r8a7742" for r8a7742 SoC
> -    - "renesas,xhci-r8a7743" for r8a7743 SoC
> -    - "renesas,xhci-r8a7744" for r8a7744 SoC
> -    - "renesas,xhci-r8a774a1" for r8a774a1 SoC
> -    - "renesas,xhci-r8a774b1" for r8a774b1 SoC
> -    - "renesas,xhci-r8a774c0" for r8a774c0 SoC
> -    - "renesas,xhci-r8a7790" for r8a7790 SoC
> -    - "renesas,xhci-r8a7791" for r8a7791 SoC
> -    - "renesas,xhci-r8a7793" for r8a7793 SoC
> -    - "renesas,xhci-r8a7795" for r8a7795 SoC
> -    - "renesas,xhci-r8a7796" for r8a77960 SoC
> -    - "renesas,xhci-r8a77961" for r8a77961 SoC
> -    - "renesas,xhci-r8a77965" for r8a77965 SoC
> -    - "renesas,xhci-r8a77990" for r8a77990 SoC
> -    - "renesas,rcar-gen2-xhci" for a generic R-Car Gen2 or RZ/G1 compatible
> -      device
> -    - "renesas,rcar-gen3-xhci" for a generic R-Car Gen3 or RZ/G2 compatible
> -      device
>      - "brcm,bcm7445-xhci" for Broadcom STB SoCs with XHCI
>      - "xhci-platform" (deprecated)

So you're just extracting the Renesas parts...

> --- /dev/null
> +++ b/Documentation/devicetree/bindings/usb/renesas,usb-xhci.yaml

... and putting them in a separate file.
Would it make sense to keep them combined in a single document?
Or are there too many differences?

> @@ -0,0 +1,84 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/usb/renesas,usb-xhci.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Renesas USB xHCI controllers
> +
> +maintainers:
> +  - Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> +  - Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
> +
> +allOf:
> +  - $ref: "usb-hcd.yaml"
> +
> +properties:
> +  compatible:
> +    oneOf:
> +      - items:
> +          - enum:
> +              - renesas,xhci-r8a7742 # r8a7742 SoC
> +              - renesas,xhci-r8a7743 # r8a7743 SoC
> +              - renesas,xhci-r8a7744 # r8a7744 SoC
> +              - renesas,xhci-r8a7790 # r8a7790 SoC
> +              - renesas,xhci-r8a7791 # r8a7791 SoC
> +              - renesas,xhci-r8a7793 # r8a7793 SoC

These comments don't add much value, as they just duplicate the SoC part
numbers.  What about using SoC part names (e.g. R-Car H2) instead, like
is done in other bindings?

> +          - const: renesas,rcar-gen2-xhci

# R-Car Gen2 and RZ/G1

> +      - items:
> +          - enum:
> +              - renesas,xhci-r8a774a1 # r8a774a1 SoC
> +              - renesas,xhci-r8a774b1 # r8a774b1 SoC
> +              - renesas,xhci-r8a774c0 # r8a774c0 SoC
> +              - renesas,xhci-r8a7795  # r8a7795 SoC
> +              - renesas,xhci-r8a7796  # r8a77960 SoC
> +              - renesas,xhci-r8a77961 # r8a77961 SoC
> +              - renesas,xhci-r8a77965 # r8a77965 SoC
> +              - renesas,xhci-r8a77990 # r8a77990 SoC

Likewise

> +          - const: renesas,rcar-gen3-xhci

# R-Car Gen3 and RZ/G2

> +
> +  reg:
> +    maxItems: 1
> +
> +  interrupts:
> +    maxItems: 1
> +
> +  clocks:
> +    maxItems: 1
> +
> +  phys:
> +    maxItems: 1
> +
> +  phy-names:
> +    maxItems: 1
> +    items:
> +      - const: usb
> +
> +  power-domains:
> +    maxItems: 1
> +
> +  resets:
> +    maxItems: 1
> +
> +required:
> +  - compatible
> +  - reg
> +  - interrupts
> +  - clocks

Missing power-domains and resets.

Gr{oetje,eeting}s,

                        Geert
Yoshihiro Shimoda June 22, 2020, 5:20 a.m. UTC | #2
Hi Geert-san,

Thank you for your review!

> From: Geert Uytterhoeven, Sent: Thursday, June 18, 2020 4:52 PM
> 
> Hi Shimoda-san,
> 
> On Mon, Jun 15, 2020 at 1:21 PM Yoshihiro Shimoda
> <yoshihiro.shimoda.uh@renesas.com> wrote:
> > Convert renesas related part of usb-xhci to YAML.
> >
> > Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
> 
> Thanks for your patch!
> 
> [reordering diff for easier commenting]
> 
> > --- a/Documentation/devicetree/bindings/usb/usb-xhci.txt
> > +++ b/Documentation/devicetree/bindings/usb/usb-xhci.txt
> > @@ -7,24 +7,6 @@ Required properties:
> >      - "marvell,armada3700-xhci" for Armada 37xx SoCs
> >      - "marvell,armada-375-xhci" for Armada 375 SoCs
> >      - "marvell,armada-380-xhci" for Armada 38x SoCs
> > -    - "renesas,xhci-r8a7742" for r8a7742 SoC
> > -    - "renesas,xhci-r8a7743" for r8a7743 SoC
> > -    - "renesas,xhci-r8a7744" for r8a7744 SoC
> > -    - "renesas,xhci-r8a774a1" for r8a774a1 SoC
> > -    - "renesas,xhci-r8a774b1" for r8a774b1 SoC
> > -    - "renesas,xhci-r8a774c0" for r8a774c0 SoC
> > -    - "renesas,xhci-r8a7790" for r8a7790 SoC
> > -    - "renesas,xhci-r8a7791" for r8a7791 SoC
> > -    - "renesas,xhci-r8a7793" for r8a7793 SoC
> > -    - "renesas,xhci-r8a7795" for r8a7795 SoC
> > -    - "renesas,xhci-r8a7796" for r8a77960 SoC
> > -    - "renesas,xhci-r8a77961" for r8a77961 SoC
> > -    - "renesas,xhci-r8a77965" for r8a77965 SoC
> > -    - "renesas,xhci-r8a77990" for r8a77990 SoC
> > -    - "renesas,rcar-gen2-xhci" for a generic R-Car Gen2 or RZ/G1 compatible
> > -      device
> > -    - "renesas,rcar-gen3-xhci" for a generic R-Car Gen3 or RZ/G2 compatible
> > -      device
> >      - "brcm,bcm7445-xhci" for Broadcom STB SoCs with XHCI
> >      - "xhci-platform" (deprecated)
> 
> So you're just extracting the Renesas parts...
> 
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/usb/renesas,usb-xhci.yaml
> 
> ... and putting them in a separate file.

Yes.

> Would it make sense to keep them combined in a single document?
> Or are there too many differences?

I thought there were too many differences. At first, I had converted all to
a single document [1]. But, I was thinking there was a not good way in validation
point of view because some properties needed to adjust for all platforms.
Also, unfortunately, some compatibles and specific properties
are not documented... So, I had extracted the Renesas parts only.

[1]
Please refer to the end of this email.

> > @@ -0,0 +1,84 @@
> > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> > +%YAML 1.2
> > +---
> > +$id: http://devicetree.org/schemas/usb/renesas,usb-xhci.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: Renesas USB xHCI controllers
> > +
> > +maintainers:
> > +  - Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> > +  - Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
> > +
> > +allOf:
> > +  - $ref: "usb-hcd.yaml"
> > +
> > +properties:
> > +  compatible:
> > +    oneOf:
> > +      - items:
> > +          - enum:
> > +              - renesas,xhci-r8a7742 # r8a7742 SoC
> > +              - renesas,xhci-r8a7743 # r8a7743 SoC
> > +              - renesas,xhci-r8a7744 # r8a7744 SoC
> > +              - renesas,xhci-r8a7790 # r8a7790 SoC
> > +              - renesas,xhci-r8a7791 # r8a7791 SoC
> > +              - renesas,xhci-r8a7793 # r8a7793 SoC
> 
> These comments don't add much value, as they just duplicate the SoC part
> numbers.  What about using SoC part names (e.g. R-Car H2) instead, like
> is done in other bindings?

Oops! I just converted the comments from the original doc...
Yes, I should use SoC part names.

> > +          - const: renesas,rcar-gen2-xhci
> 
> # R-Car Gen2 and RZ/G1

I'll add the comment.

> > +      - items:
> > +          - enum:
> > +              - renesas,xhci-r8a774a1 # r8a774a1 SoC
> > +              - renesas,xhci-r8a774b1 # r8a774b1 SoC
> > +              - renesas,xhci-r8a774c0 # r8a774c0 SoC
> > +              - renesas,xhci-r8a7795  # r8a7795 SoC
> > +              - renesas,xhci-r8a7796  # r8a77960 SoC
> > +              - renesas,xhci-r8a77961 # r8a77961 SoC
> > +              - renesas,xhci-r8a77965 # r8a77965 SoC
> > +              - renesas,xhci-r8a77990 # r8a77990 SoC
> 
> Likewise
> 
> > +          - const: renesas,rcar-gen3-xhci
> 
> # R-Car Gen3 and RZ/G2

I'll fix them.

> > +
> > +  reg:
> > +    maxItems: 1
> > +
> > +  interrupts:
> > +    maxItems: 1
> > +
> > +  clocks:
> > +    maxItems: 1
> > +
> > +  phys:
> > +    maxItems: 1
> > +
> > +  phy-names:
> > +    maxItems: 1
> > +    items:
> > +      - const: usb
> > +
> > +  power-domains:
> > +    maxItems: 1
> > +
> > +  resets:
> > +    maxItems: 1
> > +
> > +required:
> > +  - compatible
> > +  - reg
> > +  - interrupts
> > +  - clocks
> 
> Missing power-domains and resets.

I'll add them.

Best regards,
Yoshihiro Shimoda

---

diff --git a/Documentation/devicetree/bindings/usb/usb-xhci.yaml b/Documentation/devicetree/bindings/usb/usb-xhci.yaml
new file mode 100644
index 0000000..dafa2de
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/usb-xhci.yaml
@@ -0,0 +1,117 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/usb/usb-xhci.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: USB xHCI controllers
+
+maintainers:
+  - Al Cooper <alcooperx@gmail.com>
+  - Gregory CLEMENT <gregory.clement@bootlin.com>
+  - Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
+  - Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
+
+allOf:
+  - $ref: "usb-hcd.yaml"
+
+properties:
+  compatible:
+    oneOf:
+      - items:
+          - enum:
+              - brcm,bcm7445-xhci       # Broadcom STB SoCs with XHCI
+              - marvell,armada3700-xhci # Armada 37xx SoCs
+          - const: generic-xhci
+      - items:
+          - enum:
+              - marvell,armada-375-xhci # Armada 375 SoCs
+              - marvell,armada-380-xhci # Armada 38x SoCs
+      - items:
+          - const: generic-xhci
+      - items:
+          - enum:
+              - renesas,xhci-r8a7742 # r8a7742 SoC
+              - renesas,xhci-r8a7743 # r8a7743 SoC
+              - renesas,xhci-r8a7744 # r8a7744 SoC
+              - renesas,xhci-r8a7790 # r8a7790 SoC
+              - renesas,xhci-r8a7791 # r8a7791 SoC
+              - renesas,xhci-r8a7793 # r8a7793 SoC
+          - const: renesas,rcar-gen2-xhci
+      - items:
+          - enum:
+              - renesas,xhci-r8a774a1 # r8a774a1 SoC
+              - renesas,xhci-r8a774b1 # r8a774b1 SoC
+              - renesas,xhci-r8a774c0 # r8a774c0 SoC
+              - renesas,xhci-r8a7795  # r8a7795 SoC
+              - renesas,xhci-r8a7796  # r8a77960 SoC
+              - renesas,xhci-r8a77961 # r8a77961 SoC
+              - renesas,xhci-r8a77965 # r8a77965 SoC
+              - renesas,xhci-r8a77990 # r8a77990 SoC
+          - const: renesas,rcar-gen3-xhci
+
+  reg:
+    minItems: 1
+    maxItems: 2
+
+  interrupts:
+    minItems: 1
+
+  clocks:
+    minItems: 1
+    maxItems: 2
+
+  clock-names:
+    minItems: 1
+    maxItems: 2
+    items:
+      - const: core
+      - const: reg
+
+  usb2-lpm-disable:
+    description:
+      indicate if we don't want to enable USB2 HW LPM
+
+  usb3-lpm-capable:
+    description:
+      determines if platform is USB3 LPM capable
+
+  quirk-broken-port-ped:
+    description:
+      set if the controller has broken port disable mechanism
+
+  imod-interval-ns:
+    description:
+      default interrupt moderation interval is 5000ns
+
+  phys:
+    minItems: 1
+    maxItems: 3
+
+  phy-names:
+    minItems: 1
+    maxItems: 3
+
+  power-domains:
+    maxItems: 1
+
+  resets:
+    maxItems: 1
+
+  dma-coherent: true
+
+required:
+  - compatible
+  - reg
+  - interrupts
+
+additionalProperties: false
+
+examples:
+  - |
+
+    usb@f0931000 {
+        compatible = "generic-xhci";
+        reg = <0xf0931000 0x8c8>;
+        interrupts = <0x0 0x4e 0x0>;
+    };
Geert Uytterhoeven June 22, 2020, 7:06 a.m. UTC | #3
Hi Shimoda-san,

On Mon, Jun 22, 2020 at 7:21 AM Yoshihiro Shimoda
<yoshihiro.shimoda.uh@renesas.com> wrote:
> > From: Geert Uytterhoeven, Sent: Thursday, June 18, 2020 4:52 PM
> > On Mon, Jun 15, 2020 at 1:21 PM Yoshihiro Shimoda
> > <yoshihiro.shimoda.uh@renesas.com> wrote:
> > > Convert renesas related part of usb-xhci to YAML.
> > >
> > > Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>

> > So you're just extracting the Renesas parts...
> >
> > > --- /dev/null
> > > +++ b/Documentation/devicetree/bindings/usb/renesas,usb-xhci.yaml
> >
> > ... and putting them in a separate file.
>
> Yes.
>
> > Would it make sense to keep them combined in a single document?
> > Or are there too many differences?
>
> I thought there were too many differences. At first, I had converted all to
> a single document [1]. But, I was thinking there was a not good way in validation
> point of view because some properties needed to adjust for all platforms.
> Also, unfortunately, some compatibles and specific properties
> are not documented... So, I had extracted the Renesas parts only.
>
> [1]
> Please refer to the end of this email.

OK. Makes sense, as the Renesas parts are not compatible with generic-xhci.

Gr{oetje,eeting}s,

                        Geert
Yoshihiro Shimoda June 22, 2020, 8 a.m. UTC | #4
Hi Geert-san,

> From: Geert Uytterhoeven, Sent: Monday, June 22, 2020 4:06 PM
> 
> Hi Shimoda-san,
> 
> On Mon, Jun 22, 2020 at 7:21 AM Yoshihiro Shimoda
> <yoshihiro.shimoda.uh@renesas.com> wrote:
> > > From: Geert Uytterhoeven, Sent: Thursday, June 18, 2020 4:52 PM
> > > On Mon, Jun 15, 2020 at 1:21 PM Yoshihiro Shimoda
> > > <yoshihiro.shimoda.uh@renesas.com> wrote:
> > > > Convert renesas related part of usb-xhci to YAML.
> > > >
> > > > Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
> 
> > > So you're just extracting the Renesas parts...
> > >
> > > > --- /dev/null
> > > > +++ b/Documentation/devicetree/bindings/usb/renesas,usb-xhci.yaml
> > >
> > > ... and putting them in a separate file.
> >
> > Yes.
> >
> > > Would it make sense to keep them combined in a single document?
> > > Or are there too many differences?
> >
> > I thought there were too many differences. At first, I had converted all to
> > a single document [1]. But, I was thinking there was a not good way in validation
> > point of view because some properties needed to adjust for all platforms.
> > Also, unfortunately, some compatibles and specific properties
> > are not documented... So, I had extracted the Renesas parts only.
> >
> > [1]
> > Please refer to the end of this email.
> 
> OK. Makes sense, as the Renesas parts are not compatible with generic-xhci.

Yes. So, I'll add such information into the commit description on v2.

Best regards,
Yoshihiro Shimoda

> 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
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/usb/renesas,usb-xhci.yaml b/Documentation/devicetree/bindings/usb/renesas,usb-xhci.yaml
new file mode 100644
index 0000000..279413b
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/renesas,usb-xhci.yaml
@@ -0,0 +1,84 @@ 
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/usb/renesas,usb-xhci.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Renesas USB xHCI controllers
+
+maintainers:
+  - Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
+  - Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
+
+allOf:
+  - $ref: "usb-hcd.yaml"
+
+properties:
+  compatible:
+    oneOf:
+      - items:
+          - enum:
+              - renesas,xhci-r8a7742 # r8a7742 SoC
+              - renesas,xhci-r8a7743 # r8a7743 SoC
+              - renesas,xhci-r8a7744 # r8a7744 SoC
+              - renesas,xhci-r8a7790 # r8a7790 SoC
+              - renesas,xhci-r8a7791 # r8a7791 SoC
+              - renesas,xhci-r8a7793 # r8a7793 SoC
+          - const: renesas,rcar-gen2-xhci
+      - items:
+          - enum:
+              - renesas,xhci-r8a774a1 # r8a774a1 SoC
+              - renesas,xhci-r8a774b1 # r8a774b1 SoC
+              - renesas,xhci-r8a774c0 # r8a774c0 SoC
+              - renesas,xhci-r8a7795  # r8a7795 SoC
+              - renesas,xhci-r8a7796  # r8a77960 SoC
+              - renesas,xhci-r8a77961 # r8a77961 SoC
+              - renesas,xhci-r8a77965 # r8a77965 SoC
+              - renesas,xhci-r8a77990 # r8a77990 SoC
+          - const: renesas,rcar-gen3-xhci
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+  phys:
+    maxItems: 1
+
+  phy-names:
+    maxItems: 1
+    items:
+      - const: usb
+
+  power-domains:
+    maxItems: 1
+
+  resets:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/r8a7795-cpg-mssr.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/power/r8a7795-sysc.h>
+
+    xhci0: usb@ee000000 {
+        compatible = "renesas,xhci-r8a7795", "renesas,rcar-gen3-xhci";
+        reg = <0xee000000 0xc00>;
+        interrupts = <GIC_SPI 102 IRQ_TYPE_LEVEL_HIGH>;
+        clocks = <&cpg CPG_MOD 328>;
+        power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
+        resets = <&cpg 328>;
+    };
diff --git a/Documentation/devicetree/bindings/usb/usb-xhci.txt b/Documentation/devicetree/bindings/usb/usb-xhci.txt
index b120dd6..0c5cff8 100644
--- a/Documentation/devicetree/bindings/usb/usb-xhci.txt
+++ b/Documentation/devicetree/bindings/usb/usb-xhci.txt
@@ -7,24 +7,6 @@  Required properties:
     - "marvell,armada3700-xhci" for Armada 37xx SoCs
     - "marvell,armada-375-xhci" for Armada 375 SoCs
     - "marvell,armada-380-xhci" for Armada 38x SoCs
-    - "renesas,xhci-r8a7742" for r8a7742 SoC
-    - "renesas,xhci-r8a7743" for r8a7743 SoC
-    - "renesas,xhci-r8a7744" for r8a7744 SoC
-    - "renesas,xhci-r8a774a1" for r8a774a1 SoC
-    - "renesas,xhci-r8a774b1" for r8a774b1 SoC
-    - "renesas,xhci-r8a774c0" for r8a774c0 SoC
-    - "renesas,xhci-r8a7790" for r8a7790 SoC
-    - "renesas,xhci-r8a7791" for r8a7791 SoC
-    - "renesas,xhci-r8a7793" for r8a7793 SoC
-    - "renesas,xhci-r8a7795" for r8a7795 SoC
-    - "renesas,xhci-r8a7796" for r8a77960 SoC
-    - "renesas,xhci-r8a77961" for r8a77961 SoC
-    - "renesas,xhci-r8a77965" for r8a77965 SoC
-    - "renesas,xhci-r8a77990" for r8a77990 SoC
-    - "renesas,rcar-gen2-xhci" for a generic R-Car Gen2 or RZ/G1 compatible
-      device
-    - "renesas,rcar-gen3-xhci" for a generic R-Car Gen3 or RZ/G2 compatible
-      device
     - "brcm,bcm7445-xhci" for Broadcom STB SoCs with XHCI
     - "xhci-platform" (deprecated)