[PATCH 1/2] dt-bindings: clock: Introduce QCOM RPMh clock bindings

[Taniya Das <tdas@codeaurora.org>]

Add RPMh clock device bindings for Qualcomm Technology Inc's SoCs. These
devices would be used for communicating resource state requests to control
the clocks managed by RPMh.

Signed-off-by: Taniya Das <tdas@codeaurora.org>
Reviewed-by: Rob Herring <robh@kernel.org>
---
 .../devicetree/bindings/clock/qcom,rpmh-clk.txt    | 46 ++++++++++++++++++++++
 include/dt-bindings/clock/qcom,rpmh.h              | 22 +++++++++++
 2 files changed, 68 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/clock/qcom,rpmh-clk.txt
 create mode 100644 include/dt-bindings/clock/qcom,rpmh.h

diff --git a/Documentation/devicetree/bindings/clock/qcom,rpmh-clk.txt b/Documentation/devicetree/bindings/clock/qcom,rpmh-clk.txt
new file mode 100644
index 0000000..2632cae
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/qcom,rpmh-clk.txt
@@ -0,0 +1,46 @@
+Qualcomm Technologies, Inc. RPMh Clocks
+-------------------------------------------------------
+
+Resource Power Manager Hardened (RPMh) manages shared resources on
+some Qualcomm Technologies Inc. SoCs. It accepts clock requests from
+other hardware subsystems via RSC to control clocks.
+
+Required properties :
+- compatible : shall contain "qcom,sdm845-rpmh-clk"
+
+- #clock-cells : must contain 1
+
+Optional properties :
+
+These below properities would be required in the cases where the parent of the
+clocks would be "xo_board_div". The default parent for the clock is "xo_board".
+
+- assigned-clocks: from the common clock binding;
+		should be: clock specifier for each output clock of this
+		provider node
+
+- assigned-clock-parents: from the common clock binding;
+		should be: phandle of input clock listed in clocks
+		property
+Example :
+
+#include <dt-bindings/clock/qcom,rpmh.h>
+
+	&apps_rsc {
+		rpmhcc: clock-controller {
+			compatible = "qcom,sdm845-rpmh-clk";
+			#clock-cells = <1>;
+			assigned-clocks = <&clock_rpmh RPMH_CXO_CLK>,
+					<&clock_rpmh RPMH_CXO_CLK_A>,
+					<&clock_rpmh RPMH_LN_BB_CLK2>,
+					<&clock_rpmh RPMH_LN_BB_CLK2_A>,
+					<&clock_rpmh RPMH_LN_BB_CLK3>,
+					<&clock_rpmh RPMH_LN_BB_CLK3_A>;
+			assigned-clock-parents = <&xo_board_div>,
+						<&xo_board_div>,
+						<&xo_board_div>,
+						<&xo_board_div>,
+						<&xo_board_div>,
+						<&xo_board_div>,
+		};
+	};
diff --git a/include/dt-bindings/clock/qcom,rpmh.h b/include/dt-bindings/clock/qcom,rpmh.h
new file mode 100644
index 0000000..f48fbd6
--- /dev/null
+++ b/include/dt-bindings/clock/qcom,rpmh.h
@@ -0,0 +1,22 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) 2018, The Linux Foundation. All rights reserved. */
+
+
+#ifndef _DT_BINDINGS_CLK_MSM_RPMH_H
+#define _DT_BINDINGS_CLK_MSM_RPMH_H
+
+/* RPMh controlled clocks */
+#define RPMH_CXO_CLK				0
+#define RPMH_CXO_CLK_A				1
+#define RPMH_LN_BB_CLK2				2
+#define RPMH_LN_BB_CLK2_A			3
+#define RPMH_LN_BB_CLK3				4
+#define RPMH_LN_BB_CLK3_A			5
+#define RPMH_RF_CLK1				6
+#define RPMH_RF_CLK1_A				7
+#define RPMH_RF_CLK2				8
+#define RPMH_RF_CLK2_A				9
+#define RPMH_RF_CLK3				10
+#define RPMH_RF_CLK3_A				11
+
+#endif
--
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of the Code Aurora Forum, hosted by the  Linux Foundation.