path: root/drivers/clk/qcom/clk-smd-rpm.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * Copyright (c) 2016, Linaro Limited
 * Copyright (c) 2014, The Linux Foundation. All rights reserved.
 */

#include <linux/clk-provider.h>
#include <linux/err.h>
#include <linux/export.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/mutex.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/soc/qcom/smd-rpm.h>

#include <dt-bindings/clock/qcom,rpmcc.h>

#define __DEFINE_CLK_SMD_RPM_PREFIX(_prefix, _name, _active,		      \
				    type, r_id, key, ao_rate, ao_flags)			      \
	static struct clk_smd_rpm clk_smd_rpm_##_prefix##_active;	      \
	static struct clk_smd_rpm clk_smd_rpm_##_prefix##_name = {	      \
		.rpm_res_type = (type),					      \
		.rpm_clk_id = (r_id),					      \
		.rpm_key = (key),					      \
		.peer = &clk_smd_rpm_##_prefix##_active,		      \
		.rate = INT_MAX,					      \
		.hw.init = &(struct clk_init_data){			      \
			.ops = &clk_smd_rpm_ops,			      \
			.name = #_name,					      \
			.parent_data =  &(const struct clk_parent_data){      \
					.fw_name = "xo",		      \
					.name = "xo_board",		      \
			},						      \
			.num_parents = 1,				      \
		},							      \
	};								      \
	static struct clk_smd_rpm clk_smd_rpm_##_prefix##_active = {	      \
		.rpm_res_type = (type),					      \
		.rpm_clk_id = (r_id),					      \
		.active_only = true,					      \
		.rpm_key = (key),					      \
		.peer = &clk_smd_rpm_##_prefix##_name,			      \
		.rate = (ao_rate),					      \
		.hw.init = &(struct clk_init_data){			      \
			.ops = &clk_smd_rpm_ops,			      \
			.name = #_active,				      \
			.parent_data =  &(const struct clk_parent_data){      \
					.fw_name = "xo",		      \
					.name = "xo_board",		      \
			},						      \
			.num_parents = 1,				      \
			.flags = (ao_flags),				      \
		},							      \
	}

#define __DEFINE_CLK_SMD_RPM(_name, _active, type, r_id, key,\
			     ao_rate, ao_flags)				      \
	__DEFINE_CLK_SMD_RPM_PREFIX(/* empty */, _name, _active,	      \
				    type, r_id, key, ao_rate, ao_flags)

#define __DEFINE_CLK_SMD_RPM_BRANCH_PREFIX(_prefix, _name, _active,\
					   type, r_id, r, key, ao_flags)      \
	static struct clk_smd_rpm clk_smd_rpm_##_prefix##_active;	      \
	static struct clk_smd_rpm clk_smd_rpm_##_prefix##_name = {	      \
		.rpm_res_type = (type),					      \
		.rpm_clk_id = (r_id),					      \
		.rpm_key = (key),					      \
		.branch = true,						      \
		.peer = &clk_smd_rpm_##_prefix##_active,		      \
		.rate = (r),						      \
		.hw.init = &(struct clk_init_data){			      \
			.ops = &clk_smd_rpm_branch_ops,			      \
			.name = #_name,					      \
			.parent_data =  &(const struct clk_parent_data){      \
					.fw_name = "xo",		      \
					.name = "xo_board",		      \
			},						      \
			.num_parents = 1,				      \
		},							      \
	};								      \
	static struct clk_smd_rpm clk_smd_rpm_##_prefix##_active = {	      \
		.rpm_res_type = (type),					      \
		.rpm_clk_id = (r_id),					      \
		.active_only = true,					      \
		.rpm_key = (key),					      \
		.branch = true,						      \
		.peer = &clk_smd_rpm_##_prefix##_name,			      \
		.rate = (r),						      \
		.hw.init = &(struct clk_init_data){			      \
			.ops = &clk_smd_rpm_branch_ops,			      \
			.name = #_active,				      \
			.parent_data =  &(const struct clk_parent_data){      \
					.fw_name = "xo",		      \
					.name = "xo_board",		      \
			},						      \
			.num_parents = 1,				      \
			.flags = (ao_flags),				      \
		},							      \
	}

#define __DEFINE_CLK_SMD_RPM_BRANCH(_name, _active, type, r_id, r, key)	      \
		__DEFINE_CLK_SMD_RPM_BRANCH_PREFIX(/* empty */,		      \
		_name, _active, type, r_id, r, key, 0)

#define DEFINE_CLK_SMD_RPM(_name, type, r_id)				      \
		__DEFINE_CLK_SMD_RPM(_name##_clk, _name##_a_clk,	      \
		type, r_id, QCOM_RPM_SMD_KEY_RATE, INT_MAX, 0)

#define DEFINE_CLK_SMD_RPM_BUS(_name, r_id)				      \
		__DEFINE_CLK_SMD_RPM_PREFIX(bus_##r_id##_,		      \
		_name##_clk, _name##_a_clk, QCOM_SMD_RPM_BUS_CLK, r_id,	      \
		QCOM_RPM_SMD_KEY_RATE, INT_MAX, 0)

#define DEFINE_CLK_SMD_RPM_BUS_A(_name, r_id, ao_rate, ao_flags)		      \
		__DEFINE_CLK_SMD_RPM_PREFIX(bus_##r_id##_,		      \
		_name##_clk, _name##_a_clk, QCOM_SMD_RPM_BUS_CLK, r_id,	      \
		QCOM_RPM_SMD_KEY_RATE, ao_rate, ao_flags)

#define DEFINE_CLK_SMD_RPM_CLK_SRC(_name, type, r_id)			      \
		__DEFINE_CLK_SMD_RPM(					      \
		_name##_clk_src, _name##_a_clk_src,			      \
		type, r_id, QCOM_RPM_SMD_KEY_RATE, INT_MAX, 0)

#define DEFINE_CLK_SMD_RPM_BRANCH(_name, type, r_id, r)			      \
		__DEFINE_CLK_SMD_RPM_BRANCH_PREFIX(branch_,		      \
		_name##_clk, _name##_a_clk,				      \
		type, r_id, r, QCOM_RPM_SMD_KEY_ENABLE, 0)

#define DEFINE_CLK_SMD_RPM_BRANCH_A(_name, type, r_id, r, ao_flags)	      \
		__DEFINE_CLK_SMD_RPM_BRANCH_PREFIX(branch_,		      \
		_name, _name##_a, type,					      \
		r_id, r, QCOM_RPM_SMD_KEY_ENABLE, ao_flags)

#define DEFINE_CLK_SMD_RPM_QDSS(_name, type, r_id)			      \
		__DEFINE_CLK_SMD_RPM(_name##_clk, _name##_a_clk,	      \
		type, r_id, QCOM_RPM_SMD_KEY_STATE, INT_MAX, 0)

#define DEFINE_CLK_SMD_RPM_XO_BUFFER(_name, r_id, r)			      \
		__DEFINE_CLK_SMD_RPM_BRANCH(_name, _name##_a,		      \
		QCOM_SMD_RPM_CLK_BUF_A, r_id, r,			      \
		QCOM_RPM_KEY_SOFTWARE_ENABLE)

#define DEFINE_CLK_SMD_RPM_XO_BUFFER_PREFIX(_prefix, _name, r_id, r)	      \
		__DEFINE_CLK_SMD_RPM_BRANCH_PREFIX(_prefix,		      \
		_name, _name##_a,					      \
		QCOM_SMD_RPM_CLK_BUF_A, r_id, r,			      \
		QCOM_RPM_KEY_S