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        <nfraprado@collabora.com>
To:     Bjorn Andersson <bjorn.andersson@linaro.org>
Cc:     AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@collabora.com>, kernel@collabora.com,
        =?UTF-8?q?N=C3=ADcolas=20F=2E=20R=2E=20A=2E=20Prado?= 
        <nfraprado@collabora.com>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        Mathieu Poirier <mathieu.poirier@linaro.org>,
        Matthias Brugger <matthias.bgg@gmail.com>,
        Rob Herring <robh+dt@kernel.org>,
        Tinghan Shen <tinghan.shen@mediatek.com>,
        devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
        linux-kernel@vger.kernel.org, linux-mediatek@lists.infradead.org,
        linux-remoteproc@vger.kernel.org
Subject: [PATCH v3 1/2] dt-bindings: remoteproc: mediatek: Make l1tcm reg optional for mtk,scp
Date:   Tue,  3 May 2022 17:11:13 -0400
Message-Id: <20220503211114.2656099-2-nfraprado@collabora.com>
In-Reply-To: <20220503211114.2656099-1-nfraprado@collabora.com>
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Precedence: bulk

The SCP has three memory regions: sram, cfg and l1tcm. While the first
two are required, l1tcm is optional. Fix the dt-binding so that it can
be omitted and update the description. This gets rid of dtbs_check
warnings for devicetrees where the l1tcm reg is missing like mt8183.

Signed-off-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>

---

Changes in v3:
- Made the cfg reg required again. After looking again into the mtk-scp
  driver, only l1tcm is optional.
- Added mention that a dtbs_check warning gets fixed by patch in commit
  message.

 Documentation/devicetree/bindings/remoteproc/mtk,scp.yaml | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/remoteproc/mtk,scp.yaml b/Documentation/devicetree/bindings/remoteproc/mtk,scp.yaml
index 823a236242de..eeea84379a1e 100644
--- a/Documentation/devicetree/bindings/remoteproc/mtk,scp.yaml
+++ b/Documentation/devicetree/bindings/remoteproc/mtk,scp.yaml
@@ -23,11 +23,13 @@ properties:
 
   reg:
     description:
-      Should contain the address ranges for memory regions SRAM, CFG, and
-      L1TCM.
+      Should contain the address ranges for memory regions SRAM, CFG, and,
+      optionally, L1TCM.
+    minItems: 2
     maxItems: 3
 
   reg-names:
+    minItems: 2
     items:
       - const: sram
       - const: cfg
-- 
2.36.0