linux-kernel - [RFC 1/6] dt-bindings: clk: microchip: mpfs: add reset controller support

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Message-Id: <20220619164935.1492823-2-mail@conchuod.ie>
Date:   Sun, 19 Jun 2022 17:49:31 +0100
From:   Conor Dooley <mail@...chuod.ie>
To:     Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Conor Dooley <conor.dooley@...rochip.com>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        Geert Uytterhoeven <geert@...ux-m68k.org>
Cc:     Daire McNamara <daire.mcnamara@...rochip.com>,
        linux-clk@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-riscv@...ts.infradead.org
Subject: [RFC 1/6] dt-bindings: clk: microchip: mpfs: add reset controller support

From: Conor Dooley <conor.dooley@...rochip.com>

The "peripheral" devices on PolarFire SoC can be put into reset, so
update the device tree binding to reflect the presence of a reset
controller.

Signed-off-by: Conor Dooley <conor.dooley@...rochip.com>
---
 .../bindings/clock/microchip,mpfs.yaml          | 17 +++++++++++++++--
 1 file changed, 15 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/clock/microchip,mpfs.yaml b/Documentation/devicetree/bindings/clock/microchip,mpfs.yaml
index 016a4f378b9b..1d0b6a4fda42 100644
--- a/Documentation/devicetree/bindings/clock/microchip,mpfs.yaml
+++ b/Documentation/devicetree/bindings/clock/microchip,mpfs.yaml
@@ -40,8 +40,21 @@ properties:
     const: 1
     description: |
       The clock consumer should specify the desired clock by having the clock
-      ID in its "clocks" phandle cell. See include/dt-bindings/clock/microchip,mpfs-clock.h
-      for the full list of PolarFire clock IDs.
+      ID in its "clocks" phandle cell.
+      See include/dt-bindings/clock/microchip,mpfs-clock.h for the full list of
+      PolarFire clock IDs.
+
+  resets:
+    maxItems: 1
+
+  '#reset-cells':
+    description:
+      The AHB/AXI peripherals on the PolarFire SoC have reset support, so from
+      CLK_ENVM to CLK_CFM. The reset consumer should specify the desired
+      peripheral via the clock ID in its "resets" phandle cell.
+      See include/dt-bindings/clock/microchip,mpfs-clock.h for the full list of
+      PolarFire clock IDs.
+    const: 1
 
 required:
   - compatible
-- 
2.36.1