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From:   Jianqun Xu <jay.xu@rock-chips.com>
To:     linus.walleij@linaro.org, heiko@sntech.de
Cc:     devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
        robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org,
        linux-gpio@vger.kernel.org, linux-rockchip@lists.infradead.org,
        Jianqun Xu <jay.xu@rock-chips.com>
Subject: [PATCH 1/2] dt-bindings: gpio: rockchip: add clock-names
Date:   Fri,  2 Sep 2022 14:04:25 +0800
Message-Id: <20220902060426.2980951-2-jay.xu@rock-chips.com>
In-Reply-To: <20220902060426.2980951-1-jay.xu@rock-chips.com>
References: <20220902060426.2980951-1-jay.xu@rock-chips.com>
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Precedence: bulk

Add 'clock-names' to the gpio dt node. so the driver could get clocks by
a const char id, this patch names the clock-names as
  - 'bus': the apb clock for cpu to access the gpio controller
  - 'db': the debounce clock for cpu to set debounce clock rate

Since the old dt nodes may have no clock-names, this patch not make them
as part of 'required properties'.

Signed-off-by: Jianqun Xu <jay.xu@rock-chips.com>
---
 .../devicetree/bindings/gpio/rockchip,gpio-bank.yaml        | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Documentation/devicetree/bindings/gpio/rockchip,gpio-bank.yaml b/Documentation/devicetree/bindings/gpio/rockchip,gpio-bank.yaml
index affd823c881d..d43d4c71bebf 100644
--- a/Documentation/devicetree/bindings/gpio/rockchip,gpio-bank.yaml
+++ b/Documentation/devicetree/bindings/gpio/rockchip,gpio-bank.yaml
@@ -27,6 +27,12 @@ properties:
       - description: APB interface clock source
       - description: GPIO debounce reference clock source
 
+  clock-names:
+    minItems: 1
+    items:
+      - const: bus
+      - const: db
+
   gpio-ranges: true
 
   gpio-controller: true
-- 
2.25.1