diff mbox series

[v2,02/10] dt-bindings: phy: add binding document for Allwinner F1C100s USB PHY

Message ID 20221012055602.1544944-3-uwu@icenowy.me
State Changes Requested
Headers show
Series SUNIV USB and PopStick support (and updating mailmap) | expand

Commit Message

Icenowy Zheng Oct. 12, 2022, 5:55 a.m. UTC
Allwinner F1C100s has the most simple USB PHY among all Allwinner SoCs,
because it has only one OTG USB controller, no host-only OHCI/EHCI
controllers.

Add a binding document for it. Following the current situation of one
YAML file per SoC, this one is based on
allwinner,sun8i-v3s-usb-phy.yaml, but with OHCI/EHCI-related bits
removed. (The same driver in Linux, phy-sun4i-usb, covers all these
binding files now.)

Signed-off-by: Icenowy Zheng <uwu@icenowy.me>
Reviewed-by: Rob Herring <robh@kernel.org>
---
Changes in v2:
- Clarify the relation with other phy-sun4i-usb bindings.
- Added Rob's ACK.

 .../phy/allwinner,suniv-f1c100s-usb-phy.yaml  | 83 +++++++++++++++++++
 1 file changed, 83 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/phy/allwinner,suniv-f1c100s-usb-phy.yaml

Comments

Andre Przywara Oct. 24, 2022, 2:17 p.m. UTC | #1
On Wed, 12 Oct 2022 13:55:54 +0800
Icenowy Zheng <uwu@icenowy.me> wrote:

> Allwinner F1C100s has the most simple USB PHY among all Allwinner SoCs,
> because it has only one OTG USB controller, no host-only OHCI/EHCI
> controllers.
> 
> Add a binding document for it. Following the current situation of one
> YAML file per SoC, this one is based on
> allwinner,sun8i-v3s-usb-phy.yaml, but with OHCI/EHCI-related bits
> removed. (The same driver in Linux, phy-sun4i-usb, covers all these
> binding files now.)
> 
> Signed-off-by: Icenowy Zheng <uwu@icenowy.me>
> Reviewed-by: Rob Herring <robh@kernel.org>
> ---
> Changes in v2:
> - Clarify the relation with other phy-sun4i-usb bindings.
> - Added Rob's ACK.
> 
>  .../phy/allwinner,suniv-f1c100s-usb-phy.yaml  | 83 +++++++++++++++++++
>  1 file changed, 83 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/phy/allwinner,suniv-f1c100s-usb-phy.yaml
> 
> diff --git a/Documentation/devicetree/bindings/phy/allwinner,suniv-f1c100s-usb-phy.yaml b/Documentation/devicetree/bindings/phy/allwinner,suniv-f1c100s-usb-phy.yaml
> new file mode 100644
> index 000000000000..22ff8e0f2331
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/phy/allwinner,suniv-f1c100s-usb-phy.yaml
> @@ -0,0 +1,83 @@
> +# SPDX-License-Identifier: GPL-2.0
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/phy/allwinner,suniv-f1c100s-usb-phy.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Allwinner F1C100s USB PHY Device Tree Bindings

I see that commit dd3cb467ebb56 [1] discourages the redundant "Device Tree
Bindings" suffix in the title name, so I think you should remove that.

The rest looks alright to me, compared against the manual and what the
driver expects, so with that fixed:

Reviewed-by: Andre Przywara <andre.przywara@arm.com>

Cheers,
Andre

[1]
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=dd3cb467ebb56

> +
> +maintainers:
> +  - Chen-Yu Tsai <wens@csie.org>
> +  - Maxime Ripard <mripard@kernel.org>
> +
> +properties:
> +  "#phy-cells":
> +    const: 1
> +
> +  compatible:
> +    const: allwinner,suniv-f1c100s-usb-phy
> +
> +  reg:
> +    maxItems: 1
> +    description: PHY Control registers
> +
> +  reg-names:
> +    const: phy_ctrl
> +
> +  clocks:
> +    maxItems: 1
> +    description: USB OTG PHY bus clock
> +
> +  clock-names:
> +    const: usb0_phy
> +
> +  resets:
> +    maxItems: 1
> +    description: USB OTG reset
> +
> +  reset-names:
> +    const: usb0_reset
> +
> +  usb0_id_det-gpios:
> +    maxItems: 1
> +    description: GPIO to the USB OTG ID pin
> +
> +  usb0_vbus_det-gpios:
> +    maxItems: 1
> +    description: GPIO to the USB OTG VBUS detect pin
> +
> +  usb0_vbus_power-supply:
> +    description: Power supply to detect the USB OTG VBUS
> +
> +  usb0_vbus-supply:
> +    description: Regulator controlling USB OTG VBUS
> +
> +required:
> +  - "#phy-cells"
> +  - compatible
> +  - clocks
> +  - clock-names
> +  - reg
> +  - reg-names
> +  - resets
> +  - reset-names
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/gpio/gpio.h>
> +    #include <dt-bindings/clock/suniv-ccu-f1c100s.h>
> +    #include <dt-bindings/reset/suniv-ccu-f1c100s.h>
> +
> +    phy@1c13400 {
> +        compatible = "allwinner,suniv-f1c100s-usb-phy";
> +        reg = <0x01c13400 0x10>;
> +        reg-names = "phy_ctrl";
> +        clocks = <&ccu CLK_USB_PHY0>;
> +        clock-names = "usb0_phy";
> +        resets = <&ccu RST_USB_PHY0>;
> +        reset-names = "usb0_reset";
> +        #phy-cells = <1>;
> +        usb0_id_det-gpios = <&pio 4 2 GPIO_ACTIVE_HIGH>;
> +    };
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/phy/allwinner,suniv-f1c100s-usb-phy.yaml b/Documentation/devicetree/bindings/phy/allwinner,suniv-f1c100s-usb-phy.yaml
new file mode 100644
index 000000000000..22ff8e0f2331
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/allwinner,suniv-f1c100s-usb-phy.yaml
@@ -0,0 +1,83 @@ 
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/phy/allwinner,suniv-f1c100s-usb-phy.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner F1C100s USB PHY Device Tree Bindings
+
+maintainers:
+  - Chen-Yu Tsai <wens@csie.org>
+  - Maxime Ripard <mripard@kernel.org>
+
+properties:
+  "#phy-cells":
+    const: 1
+
+  compatible:
+    const: allwinner,suniv-f1c100s-usb-phy
+
+  reg:
+    maxItems: 1
+    description: PHY Control registers
+
+  reg-names:
+    const: phy_ctrl
+
+  clocks:
+    maxItems: 1
+    description: USB OTG PHY bus clock
+
+  clock-names:
+    const: usb0_phy
+
+  resets:
+    maxItems: 1
+    description: USB OTG reset
+
+  reset-names:
+    const: usb0_reset
+
+  usb0_id_det-gpios:
+    maxItems: 1
+    description: GPIO to the USB OTG ID pin
+
+  usb0_vbus_det-gpios:
+    maxItems: 1
+    description: GPIO to the USB OTG VBUS detect pin
+
+  usb0_vbus_power-supply:
+    description: Power supply to detect the USB OTG VBUS
+
+  usb0_vbus-supply:
+    description: Regulator controlling USB OTG VBUS
+
+required:
+  - "#phy-cells"
+  - compatible
+  - clocks
+  - clock-names
+  - reg
+  - reg-names
+  - resets
+  - reset-names
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+    #include <dt-bindings/clock/suniv-ccu-f1c100s.h>
+    #include <dt-bindings/reset/suniv-ccu-f1c100s.h>
+
+    phy@1c13400 {
+        compatible = "allwinner,suniv-f1c100s-usb-phy";
+        reg = <0x01c13400 0x10>;
+        reg-names = "phy_ctrl";
+        clocks = <&ccu CLK_USB_PHY0>;
+        clock-names = "usb0_phy";
+        resets = <&ccu RST_USB_PHY0>;
+        reset-names = "usb0_reset";
+        #phy-cells = <1>;
+        usb0_id_det-gpios = <&pio 4 2 GPIO_ACTIVE_HIGH>;
+    };