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Message-Id: <1461625725-32425-2-git-send-email-andy.gross@linaro.org>
Date: Mon, 25 Apr 2016 18:08:38 -0500
From: Andy Gross <andy.gross@...aro.org>
To: linux-arm-msm@...r.kernel.org
Cc: linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
devicetree@...r.kernel.org, jilai wang <jilaiw@...eaurora.org>,
Stephen Boyd <sboyd@...eaurora.org>,
Andy Gross <andy.gross@...aro.org>
Subject: [Patch v2 1/8] dt/bindings: firmware: Add Qualcomm SCM binding
This patch adds the device tree support for the Qualcomm SCM firmware.
Signed-off-by: Andy Gross <andy.gross@...aro.org>
---
.../devicetree/bindings/firmware/qcom,scm.txt | 28 ++++++++++++++++++++++
1 file changed, 28 insertions(+)
create mode 100644 Documentation/devicetree/bindings/firmware/qcom,scm.txt
diff --git a/Documentation/devicetree/bindings/firmware/qcom,scm.txt b/Documentation/devicetree/bindings/firmware/qcom,scm.txt
new file mode 100644
index 0000000..a679a87
--- /dev/null
+++ b/Documentation/devicetree/bindings/firmware/qcom,scm.txt
@@ -0,0 +1,28 @@
+QCOM Secure Channel Manager (SCM)
+
+Qualcomm processors include an interface to communicate to the secure firmware.
+This interface allows for clients to request different types of actions. These
+can include CPU power up/down, HDCP requests, loading of firmware, and other
+assorted actions.
+
+Required properties:
+- compatible: must contain one of the following:
+ * "qcom,scm-apq8064" for APQ8064
+ * "qcom,scm-apq8084" for APQ8084
+ * "qcom,scm-msm8916" for MSM8916
+ * "qcom,scm-msm8974" for MSM8974
+- clocks: One to three clocks may be required based on compatible.
+ * Only core clock required for "qcom,scm-apq8064"
+ * Core, iface, and bus clocks required for all other compatibles.
+- clock-names: Must contain "core" for the core clock, "iface" for the interface
+ clock and "bus" for the bus clock per the requirements of the compatible.
+
+Example for MSM8916:
+
+ firmware {
+ scm {
+ compatible = "qcom,scm-msm8916";
+ clocks = <&gcc GCC_CRYPTO_CLK> , <&gcc GCC_CRYPTO_AXI_CLK>, <&gcc GCC_CRYPTO_AHB_CLK>;
+ clock-names = "core", "bus", "iface";
+ };
+ };
--
1.9.1
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