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 <[email protected]> Reviewed-by: Rob Herring <[email protected]> --- .../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 -- Qualcomm INDIA, on behalf of Qualcomm Innovation Center, Inc.is a member of the Code Aurora Forum, hosted by the Linux Foundation.
