dt-bindings: clock: reset: Add GXBB AO Clock and Reset Bindings (edb89f12) · Commits · e / devices / android_kernel_fairphone_FP3

Documentation/devicetree/bindings/clock/amlogic,gxbb-aoclkc.txt

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		* Amlogic GXBB AO Clock and Reset Unit

		The Amlogic GXBB AO clock controller generates and supplies clock to various
		controllers within the Always-On part of the SoC.

		Required Properties:

		- compatible: should be "amlogic,gxbb-aoclkc"
		- reg: physical base address of the clock controller and length of memory
		mapped region.

		- #clock-cells: should be 1.

		Each clock is assigned an identifier and client nodes can use this identifier
		to specify the clock which they consume. All available clocks are defined as
		preprocessor macros in the dt-bindings/clock/gxbb-aoclkc.h header and can be
		used in device tree sources.

		- #reset-cells: should be 1.

		Each reset is assigned an identifier and client nodes can use this identifier
		to specify the reset which they consume. All available resets are defined as
		preprocessor macros in the dt-bindings/reset/gxbb-aoclkc.h header and can be
		used in device tree sources.

		Example: AO Clock controller node:

		clkc_AO: clock-controller@040 {
		compatible = "amlogic,gxbb-aoclkc";
		reg = <0x0 0x040 0x0 0x4>;
		#clock-cells = <1>;
		#reset-cells = <1>;
		};

		Example: UART controller node that consumes the clock and reset generated
		by the clock controller:

		uart_AO: serial@4c0 {
		compatible = "amlogic,meson-uart";
		reg = <0x4c0 0x14>;
		interrupts = <0 90 1>;
		clocks = <&clkc_AO CLKID_AO_UART1>;
		resets = <&clkc_AO RESET_AO_UART1>;
		status = "disabled";
		};

include/dt-bindings/clock/gxbb-aoclkc.h

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		/*
		* This file is provided under a dual BSD/GPLv2 license. When using or
		* redistributing this file, you may do so under either license.
		*
		* GPL LICENSE SUMMARY
		*
		* Copyright (c) 2016 BayLibre, SAS.
		* Author: Neil Armstrong <narmstrong@baylibre.com>
		*
		* This program is free software; you can redistribute it and/or modify
		* it under the terms of version 2 of the GNU General Public License as
		* published by the Free Software Foundation.
		*
		* This program is distributed in the hope that it will be useful, but
		* WITHOUT ANY WARRANTY; without even the implied warranty of
		* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
		* General Public License for more details.
		*
		* You should have received a copy of the GNU General Public License
		* along with this program; if not, see <http://www.gnu.org/licenses/>.
		* The full GNU General Public License is included in this distribution
		* in the file called COPYING.
		*
		* BSD LICENSE
		*
		* Copyright (c) 2016 BayLibre, SAS.
		* Author: Neil Armstrong <narmstrong@baylibre.com>
		*
		* Redistribution and use in source and binary forms, with or without
		* modification, are permitted provided that the following conditions
		* are met:
		*
		* * Redistributions of source code must retain the above copyright
		* notice, this list of conditions and the following disclaimer.
		* * Redistributions in binary form must reproduce the above copyright
		* notice, this list of conditions and the following disclaimer in
		* the documentation and/or other materials provided with the
		* distribution.
		* * Neither the name of Intel Corporation nor the names of its
		* contributors may be used to endorse or promote products derived
		* from this software without specific prior written permission.
		*
		* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
		* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
		* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
		* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
		* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
		* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
		* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
		* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
		* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
		* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
		* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
		*/

		#ifndef DT_BINDINGS_CLOCK_AMLOGIC_MESON_GXBB_AOCLK
		#define DT_BINDINGS_CLOCK_AMLOGIC_MESON_GXBB_AOCLK

		#define CLKID_AO_REMOTE 0
		#define CLKID_AO_I2C_MASTER 1
		#define CLKID_AO_I2C_SLAVE 2
		#define CLKID_AO_UART1 3
		#define CLKID_AO_UART2 4
		#define CLKID_AO_IR_BLASTER 5

		#endif

include/dt-bindings/reset/gxbb-aoclkc.h

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		/*
		* This file is provided under a dual BSD/GPLv2 license. When using or
		* redistributing this file, you may do so under either license.
		*
		* GPL LICENSE SUMMARY
		*
		* Copyright (c) 2016 BayLibre, SAS.
		* Author: Neil Armstrong <narmstrong@baylibre.com>
		*
		* This program is free software; you can redistribute it and/or modify
		* it under the terms of version 2 of the GNU General Public License as
		* published by the Free Software Foundation.
		*
		* This program is distributed in the hope that it will be useful, but
		* WITHOUT ANY WARRANTY; without even the implied warranty of
		* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
		* General Public License for more details.
		*
		* You should have received a copy of the GNU General Public License
		* along with this program; if not, see <http://www.gnu.org/licenses/>.
		* The full GNU General Public License is included in this distribution
		* in the file called COPYING.
		*
		* BSD LICENSE
		*
		* Copyright (c) 2016 BayLibre, SAS.
		* Author: Neil Armstrong <narmstrong@baylibre.com>
		*
		* Redistribution and use in source and binary forms, with or without
		* modification, are permitted provided that the following conditions
		* are met:
		*
		* * Redistributions of source code must retain the above copyright
		* notice, this list of conditions and the following disclaimer.
		* * Redistributions in binary form must reproduce the above copyright
		* notice, this list of conditions and the following disclaimer in
		* the documentation and/or other materials provided with the
		* distribution.
		* * Neither the name of Intel Corporation nor the names of its
		* contributors may be used to endorse or promote products derived
		* from this software without specific prior written permission.
		*
		* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
		* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
		* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
		* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
		* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
		* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
		* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
		* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
		* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
		* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
		* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
		*/

		#ifndef DT_BINDINGS_RESET_AMLOGIC_MESON_GXBB_AOCLK
		#define DT_BINDINGS_RESET_AMLOGIC_MESON_GXBB_AOCLK

		#define RESET_AO_REMOTE 0
		#define RESET_AO_I2C_MASTER 1
		#define RESET_AO_I2C_SLAVE 2
		#define RESET_AO_UART1 3
		#define RESET_AO_UART2 4
		#define RESET_AO_IR_BLASTER 5

		#endif