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From:   Amjad Ouled-Ameur <aouledameur@baylibre.com>
Date:   Tue, 04 Oct 2022 13:10:36 +0200
Subject: [PATCH v2 1/2] spi: dt-bindings: amlogic, meson-gx-spicc: Add pinctrl names
 for SPI signal states
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Message-Id: <20221004-up-aml-fix-spi-v2-1-3e8ae91a1925@baylibre.com>
References: <20221004-up-aml-fix-spi-v2-0-3e8ae91a1925@baylibre.com>
In-Reply-To: <20221004-up-aml-fix-spi-v2-0-3e8ae91a1925@baylibre.com>
To:     Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        Neil Armstrong <neil.armstrong@linaro.org>,
        Rob Herring <robh+dt@kernel.org>,
        Martin Blumenstingl <martin.blumenstingl@googlemail.com>,
        Kevin Hilman <khilman@baylibre.com>,
        Jerome Brunet <jbrunet@baylibre.com>,
        Mark Brown <broonie@kernel.org>
Cc:     Neil Armstrong <neil.armstrong@linaro.org>,
        Da Xue <da@libre.computer>, linux-kernel@vger.kernel.org,
        Amjad Ouled-Ameur <aouledameur@baylibre.com>,
        linux-spi@vger.kernel.org, linux-amlogic@lists.infradead.org,
        devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org
Precedence: bulk

SPI pins of the SPICC Controller in Meson-GX needs to be controlled by
pin biais when idle. Therefore define three pinctrl names:
- default: SPI pins are controlled by spi function.
- idle-high: SCLK pin is pulled-up, but MOSI/MISO are still controlled
by spi function.
- idle-low: SCLK pin is pulled-down, but MOSI/MISO are still controlled
by spi function.

Reported-by: Da Xue <da@libre.computer>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Amjad Ouled-Ameur <aouledameur@baylibre.com>
---
 .../devicetree/bindings/spi/amlogic,meson-gx-spicc.yaml   | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/Documentation/devicetree/bindings/spi/amlogic,meson-gx-spicc.yaml b/Documentation/devicetree/bindings/spi/amlogic,meson-gx-spicc.yaml
index 0c10f7678178..53013e27f507 100644
--- a/Documentation/devicetree/bindings/spi/amlogic,meson-gx-spicc.yaml
+++ b/Documentation/devicetree/bindings/spi/amlogic,meson-gx-spicc.yaml
@@ -43,6 +43,14 @@ properties:
     minItems: 1
     maxItems: 2
 
+  pinctrl-0:
+    minItems: 1
+
+  pinctrl-1:
+    maxItems: 1
+
+  pinctrl-names: true
+
 if:
   properties:
     compatible:
@@ -69,6 +77,13 @@ else:
       items:
         - const: core
 
+    pinctrl-names:
+      minItems: 1
+      items:
+        - const: default
+        - const: idle-high
+        - const: idle-low
+
 required:
   - compatible
   - reg

-- 
b4 0.10.1