* [PATCH] dt-bindings: usb: st,st-ehci-300x: convert to DT schema
@ 2026-03-07 7:31 Charan Pedumuru
2026-03-12 15:24 ` Rob Herring
0 siblings, 1 reply; 2+ messages in thread
From: Charan Pedumuru @ 2026-03-07 7:31 UTC (permalink / raw)
To: Greg Kroah-Hartman, Rob Herring, Krzysztof Kozlowski,
Conor Dooley, Peter Griffin
Cc: linux-usb, devicetree, linux-kernel, Charan Pedumuru
Convert STMicroelectronics USB EHCI Controller binding to DT schema.
Signed-off-by: Charan Pedumuru <charan.pedumuru@gmail.com>
---
Documentation/devicetree/bindings/usb/ehci-st.txt | 38 ---------
.../devicetree/bindings/usb/st,st-ehci-300x.yaml | 95 ++++++++++++++++++++++
2 files changed, 95 insertions(+), 38 deletions(-)
diff --git a/Documentation/devicetree/bindings/usb/ehci-st.txt b/Documentation/devicetree/bindings/usb/ehci-st.txt
deleted file mode 100644
index d6f2bdee20fc..000000000000
--- a/Documentation/devicetree/bindings/usb/ehci-st.txt
+++ /dev/null
@@ -1,38 +0,0 @@
-ST USB EHCI controller
-
-Required properties:
- - compatible : must be "st,st-ehci-300x"
- - reg : physical base addresses of the controller and length of memory mapped
- region
- - interrupts : one EHCI interrupt should be described here
- - pinctrl-names : a pinctrl state named "default" must be defined
- - pinctrl-0 : phandle referencing pin configuration of the USB controller
-See: Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt
- - clocks : phandle list of usb clocks
- - clock-names : should be "ic" for interconnect clock and "clk48"
-See: Documentation/devicetree/bindings/clock/clock-bindings.txt
-
- - phys : phandle for the PHY device
- - phy-names : should be "usb"
- - resets : phandle + reset specifier pairs to the powerdown and softreset lines
- of the USB IP
- - reset-names : should be "power" and "softreset"
-See: Documentation/devicetree/bindings/reset/st,stih407-powerdown.yaml
-See: Documentation/devicetree/bindings/reset/reset.txt
-
-Example:
-
- ehci1: usb@fe203e00 {
- compatible = "st,st-ehci-300x";
- reg = <0xfe203e00 0x100>;
- interrupts = <GIC_SPI 148 IRQ_TYPE_NONE>;
- pinctrl-names = "default";
- pinctrl-0 = <&pinctrl_usb1>;
- clocks = <&clk_s_a1_ls 0>;
- phys = <&usb2_phy>;
- phy-names = "usb";
-
- resets = <&powerdown STIH416_USB1_POWERDOWN>,
- <&softreset STIH416_USB1_SOFTRESET>;
- reset-names = "power", "softreset";
- };
diff --git a/Documentation/devicetree/bindings/usb/st,st-ehci-300x.yaml b/Documentation/devicetree/bindings/usb/st,st-ehci-300x.yaml
new file mode 100644
index 000000000000..0cd625cd003b
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/st,st-ehci-300x.yaml
@@ -0,0 +1,95 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/usb/st,st-ehci-300x.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: STMicroelectronics USB EHCI Controller (ST EHCI 300x)
+
+maintainers:
+ - Peter Griffin <peter.griffin@linaro.org>
+
+description:
+ The STMicroelectronics EHCI 300x controller is a USB 2.0 Enhanced Host
+ Controller Interface used in several ST SoCs. It provides high-speed USB
+ host functionality and interfaces with an external USB PHY. The controller
+ requires clock, reset, interrupt, and pin control configuration along with
+ PHY connection information to operate correctly.
+
+allOf:
+ - $ref: usb-hcd.yaml#
+
+properties:
+ compatible:
+ const: st,st-ehci-300x
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ pinctrl-names:
+ const: default
+
+ pinctrl-0:
+ maxItems: 1
+
+ clocks:
+ maxItems: 2
+
+ clock-names:
+ items:
+ - const: ic
+ - const: clk48
+
+ phys:
+ maxItems: 1
+
+ phy-names:
+ const: usb
+
+ resets:
+ maxItems: 2
+
+ reset-names:
+ items:
+ - const: power
+ - const: softreset
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - pinctrl-names
+ - pinctrl-0
+ - clocks
+ - clock-names
+ - phys
+ - phy-names
+ - resets
+ - reset-names
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/clock/stih410-clks.h>
+ #include <dt-bindings/reset/stih407-resets.h>
+ usb@fe203e00 {
+ compatible = "st,st-ehci-300x";
+ reg = <0xfe203e00 0x100>;
+ interrupts = <GIC_SPI 148 IRQ_TYPE_NONE>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_usb1>;
+ clocks = <&clk_s_c0_flexgen CLK_TX_ICN_DISP_0>,
+ <&clk_s_c0_flexgen CLK_RX_ICN_DISP_0>;
+ clock-names = "ic", "clk48";
+ phys = <&usb2_phy>;
+ phy-names = "usb";
+ resets = <&powerdown STIH407_USB2_PORT0_POWERDOWN>,
+ <&softreset STIH407_USB2_PORT0_SOFTRESET>;
+ reset-names = "power", "softreset";
+ };
+...
---
base-commit: 3f9cd19e764b782706dbaacc69e502099cb014ba
change-id: 20260305-st-ehci-fa341495799b
Best regards,
--
Charan Pedumuru <charan.pedumuru@gmail.com>
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] dt-bindings: usb: st,st-ehci-300x: convert to DT schema
2026-03-07 7:31 [PATCH] dt-bindings: usb: st,st-ehci-300x: convert to DT schema Charan Pedumuru
@ 2026-03-12 15:24 ` Rob Herring
0 siblings, 0 replies; 2+ messages in thread
From: Rob Herring @ 2026-03-12 15:24 UTC (permalink / raw)
To: Charan Pedumuru
Cc: Greg Kroah-Hartman, Krzysztof Kozlowski, Conor Dooley,
Peter Griffin, linux-usb, devicetree, linux-kernel
On Sat, Mar 07, 2026 at 07:31:42AM +0000, Charan Pedumuru wrote:
> Convert STMicroelectronics USB EHCI Controller binding to DT schema.
>
> Signed-off-by: Charan Pedumuru <charan.pedumuru@gmail.com>
> ---
> Documentation/devicetree/bindings/usb/ehci-st.txt | 38 ---------
> .../devicetree/bindings/usb/st,st-ehci-300x.yaml | 95 ++++++++++++++++++++++
> 2 files changed, 95 insertions(+), 38 deletions(-)
>
> diff --git a/Documentation/devicetree/bindings/usb/ehci-st.txt b/Documentation/devicetree/bindings/usb/ehci-st.txt
> deleted file mode 100644
> index d6f2bdee20fc..000000000000
> --- a/Documentation/devicetree/bindings/usb/ehci-st.txt
> +++ /dev/null
> @@ -1,38 +0,0 @@
> -ST USB EHCI controller
> -
> -Required properties:
> - - compatible : must be "st,st-ehci-300x"
> - - reg : physical base addresses of the controller and length of memory mapped
> - region
> - - interrupts : one EHCI interrupt should be described here
> - - pinctrl-names : a pinctrl state named "default" must be defined
> - - pinctrl-0 : phandle referencing pin configuration of the USB controller
> -See: Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt
> - - clocks : phandle list of usb clocks
> - - clock-names : should be "ic" for interconnect clock and "clk48"
> -See: Documentation/devicetree/bindings/clock/clock-bindings.txt
> -
> - - phys : phandle for the PHY device
> - - phy-names : should be "usb"
> - - resets : phandle + reset specifier pairs to the powerdown and softreset lines
> - of the USB IP
> - - reset-names : should be "power" and "softreset"
> -See: Documentation/devicetree/bindings/reset/st,stih407-powerdown.yaml
> -See: Documentation/devicetree/bindings/reset/reset.txt
> -
> -Example:
> -
> - ehci1: usb@fe203e00 {
> - compatible = "st,st-ehci-300x";
> - reg = <0xfe203e00 0x100>;
> - interrupts = <GIC_SPI 148 IRQ_TYPE_NONE>;
> - pinctrl-names = "default";
> - pinctrl-0 = <&pinctrl_usb1>;
> - clocks = <&clk_s_a1_ls 0>;
> - phys = <&usb2_phy>;
> - phy-names = "usb";
> -
> - resets = <&powerdown STIH416_USB1_POWERDOWN>,
> - <&softreset STIH416_USB1_SOFTRESET>;
> - reset-names = "power", "softreset";
> - };
> diff --git a/Documentation/devicetree/bindings/usb/st,st-ehci-300x.yaml b/Documentation/devicetree/bindings/usb/st,st-ehci-300x.yaml
> new file mode 100644
> index 000000000000..0cd625cd003b
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/usb/st,st-ehci-300x.yaml
> @@ -0,0 +1,95 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/usb/st,st-ehci-300x.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: STMicroelectronics USB EHCI Controller (ST EHCI 300x)
> +
> +maintainers:
> + - Peter Griffin <peter.griffin@linaro.org>
> +
> +description:
> + The STMicroelectronics EHCI 300x controller is a USB 2.0 Enhanced Host
> + Controller Interface used in several ST SoCs. It provides high-speed USB
> + host functionality and interfaces with an external USB PHY. The controller
> + requires clock, reset, interrupt, and pin control configuration along with
> + PHY connection information to operate correctly.
> +
> +allOf:
> + - $ref: usb-hcd.yaml#
> +
> +properties:
> + compatible:
> + const: st,st-ehci-300x
> +
> + reg:
> + maxItems: 1
> +
> + interrupts:
> + maxItems: 1
> +
> + pinctrl-names:
> + const: default
> +
> + pinctrl-0:
> + maxItems: 1
These can be dropped as pinctrl properties are always allowed.
With that,
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
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2026-03-07 7:31 [PATCH] dt-bindings: usb: st,st-ehci-300x: convert to DT schema Charan Pedumuru
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