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From:   Rishabh Bhatnagar <rishabhb@codeaurora.org>
To:     linux-arm-kernel@lists.infradead.org,
        linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org
Cc:     linux-kernel@vger.kernel.org, linux-arm@lists.infradead.org,
        tsoni@codeaurora.org, ckadabi@codeaurora.org, evgreen@chromium.org,
        robh@kernel.org, Rishabh Bhatnagar <rishabhb@codeaurora.org>
Subject: [PATCH v6 1/2] dt-bindings: Documentation for qcom, llcc
Date:   Tue,  8 May 2018 13:22:00 -0700
Message-Id: <1525810921-15878-2-git-send-email-rishabhb@codeaurora.org>
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Documentation for last level cache controller device tree bindings,
client bindings usage examples.

Signed-off-by: Channagoud Kadabi <ckadabi@codeaurora.org>
Signed-off-by: Rishabh Bhatnagar <rishabhb@codeaurora.org>
---
 .../devicetree/bindings/arm/msm/qcom,llcc.txt      | 32 ++++++++++++++++++++++
 1 file changed, 32 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/arm/msm/qcom,llcc.txt

diff --git a/Documentation/devicetree/bindings/arm/msm/qcom,llcc.txt b/Documentation/devicetree/bindings/arm/msm/qcom,llcc.txt
new file mode 100644
index 0000000..a586a17
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/msm/qcom,llcc.txt
@@ -0,0 +1,32 @@
+== Introduction==
+
+LLCC (Last Level Cache Controller) provides last level of cache memory in SOC,
+that can be shared by multiple clients. Clients here are different cores in the
+SOC, the idea is to minimize the local caches at the clients and migrate to
+common pool of memory. Cache memory is divided into partitions called slices
+which are assigned to clients. Clients can query the slice details, activate
+and deactivate them.
+
+Properties:
+- compatible:
+	Usage: required
+	Value type: <string>
+	Definition: must be "qcom,sdm845-llcc"
+
+- reg:
+	Usage: required
+	Value Type: <prop-encoded-array>
+	Definition: Start address and the range of the LLCC registers.
+
+- max-slices:
+	usage: required
+	Value Type: <u32>
+	Definition: Number of cache slices supported by hardware
+
+Example:
+
+	llcc: qcom,llcc@1100000 {
+		compatible = "qcom,sdm845-llcc";
+		reg = <0x1100000 0x250000>;
+		max-slices = <32>;
+	};
-- 
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