linux-kernel - [PATCH v2] dt-bindings: mfd: samsung,exynos5433-lpass: drop useless 'dma-channels/requests' properties

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Message-Id: <20220516141123.4579-1-krzysztof.kozlowski@linaro.org>
Date:   Mon, 16 May 2022 16:11:23 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Lee Jones <lee.jones@...aro.org>, Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Alim Akhtar <alim.akhtar@...sung.com>,
        Sylwester Nawrocki <s.nawrocki@...sung.com>,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-samsung-soc@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        Rob Herring <robh@...nel.org>
Subject: [PATCH v2] dt-bindings: mfd: samsung,exynos5433-lpass: drop useless 'dma-channels/requests' properties

The pl330 DMA controller provides number of DMA channels and requests
through its registers, so duplicating this information (with a chance of
mistakes) in DTS is pointless.  Additionally the DTS used always wrong
property names which causes DT schema check failures - the bindings
documented 'dma-channels' and 'dma-requests' properties without leading
hash sign.

Reported-by: Rob Herring <robh@...nel.org>
Fixes: e18183cefc8b ("mfd: Add DT bindings documentation for Samsung Exynos LPASS")
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Reviewed-by: Alim Akhtar <alim.akhtar@...sung.com>
Acked-by: Rob Herring <robh@...nel.org>

---

Changes since v1:
1. v1 was ment to be applied but I cannot find it in MFD tree.
2. Drop the properties entirely as turned out during discussions.

v1: https://lore.kernel.org/all/YmpkE0FgEhPNneg+@google.com/
---
 .../devicetree/bindings/mfd/samsung,exynos5433-lpass.yaml       | 2 --
 1 file changed, 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/mfd/samsung,exynos5433-lpass.yaml b/Documentation/devicetree/bindings/mfd/samsung,exynos5433-lpass.yaml
index f7bb67d10eff..69c15744c864 100644
--- a/Documentation/devicetree/bindings/mfd/samsung,exynos5433-lpass.yaml
+++ b/Documentation/devicetree/bindings/mfd/samsung,exynos5433-lpass.yaml
@@ -79,8 +79,6 @@ examples:
             clocks = <&cmu_aud CLK_ACLK_DMAC>;
             clock-names = "apb_pclk";
             #dma-cells = <1>;
-            #dma-channels = <8>;
-            #dma-requests = <32>;
             power-domains = <&pd_aud>;
         };
 
-- 
2.32.0