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53 lines
1.6 KiB
53 lines
1.6 KiB
/*
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* Copyright (c) 2017-2018, The Linux Foundation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 and
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* only version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*/
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#ifndef __QCOM_CLK_VOTER_H__
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#define __QCOM_CLK_VOTER_H__
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#include <linux/clk-provider.h>
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#include <linux/platform_device.h>
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struct clk_voter {
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int is_branch;
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bool enabled;
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struct clk_hw hw;
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unsigned long rate;
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};
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extern const struct clk_ops clk_ops_voter;
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#define to_clk_voter(_hw) container_of(_hw, struct clk_voter, hw)
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#define __DEFINE_CLK_VOTER(clk_name, _parent_name, _default_rate, _is_branch) \
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struct clk_voter clk_name = { \
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.is_branch = (_is_branch), \
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.rate = _default_rate, \
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.hw.init = &(struct clk_init_data){ \
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.ops = &clk_ops_voter, \
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.name = #clk_name, \
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.flags = CLK_ENABLE_HAND_OFF, \
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.parent_names = (const char *[]){ #_parent_name }, \
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.num_parents = 1, \
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}, \
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}
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#define DEFINE_CLK_VOTER(clk_name, _parent_name, _default_rate) \
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__DEFINE_CLK_VOTER(clk_name, _parent_name, _default_rate, 0)
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#define DEFINE_CLK_BRANCH_VOTER(clk_name, _parent_name) \
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__DEFINE_CLK_VOTER(clk_name, _parent_name, 1000, 1)
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int voter_clk_handoff(struct clk_hw *hw);
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#endif
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