diff mbox series

[v2,08/15] dt-bindings: phy: renesas,usb2-phy: Add renesas,sysc-signal

Message ID 20241126092050.1825607-9-claudiu.beznea.uj@bp.renesas.com
State Changes Requested
Delegated to: Rob Herring
Headers show
Series Add initial USB support for the Renesas RZ/G3S SoC | expand

Checks

Context Check Description
robh/checkpatch success
robh/patch-applied success
robh/dtbs-check warning build log
robh/dt-meta-schema success

Commit Message

Claudiu Beznea Nov. 26, 2024, 9:20 a.m. UTC 
From: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>

On the Renesas RZ/G3S SoC, the USB PHY receives a signal from the system
controller that need to be de-asserted/asserted when power is turned
on/off. This signal, called PWRRDY, is controlled through a specific
register in the system controller memory space.

Add the renesas,sysc-signal DT property to describe the relation b/w the
system controller and the USB PHY on the Renesas RZ/G3S. This property
provides a phandle to the system controller, along with the offset within
the system controller memory space that manages the signal and a bitmask
that indicates the specific bits required to control the signal.

Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>
---

Changes in v2:
- none; this patch is new


 .../bindings/phy/renesas,usb2-phy.yaml        | 22 +++++++++++++++++++
 1 file changed, 22 insertions(+)

Comments

Geert Uytterhoeven Dec. 10, 2024, 3:02 p.m. UTC | #1 
On Tue, Nov 26, 2024 at 10:21 AM Claudiu <claudiu.beznea@tuxon.dev> wrote:
> From: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>
>
> On the Renesas RZ/G3S SoC, the USB PHY receives a signal from the system
> controller that need to be de-asserted/asserted when power is turned
> on/off. This signal, called PWRRDY, is controlled through a specific
> register in the system controller memory space.
>
> Add the renesas,sysc-signal DT property to describe the relation b/w the
> system controller and the USB PHY on the Renesas RZ/G3S. This property
> provides a phandle to the system controller, along with the offset within
> the system controller memory space that manages the signal and a bitmask
> that indicates the specific bits required to control the signal.
>
> Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>

Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>

Gr{oetje,eeting}s,

                        Geert
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/phy/renesas,usb2-phy.yaml b/Documentation/devicetree/bindings/phy/renesas,usb2-phy.yaml
index 2babd200bd98..3b8dcacc3740 100644
--- a/Documentation/devicetree/bindings/phy/renesas,usb2-phy.yaml
+++ b/Documentation/devicetree/bindings/phy/renesas,usb2-phy.yaml
@@ -85,6 +85,16 @@  properties:
 
   dr_mode: true
 
+  renesas,sysc-signal:
+    description: System controller phandle, specifying the register
+      offset and bitmask associated with a specific system controller signal
+    $ref: /schemas/types.yaml#/definitions/phandle-array
+    items:
+      - items:
+          - description: system controller phandle
+          - description: register offset associated with a signal
+          - description: register bitmask associated with a signal
+
 if:
   properties:
     compatible:
@@ -112,6 +122,18 @@  allOf:
       required:
         - resets
 
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: renesas,usb2-phy-r9a08g045
+    then:
+      required:
+        - renesas,sysc-signal
+    else:
+      properties:
+        renesas,sysc-signal: false
+
 additionalProperties: false
 
 examples: