Orange Pi5 kernel

Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards

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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (C) 2016 Maxime Ripard
* Maxime Ripard <maxime.ripard@free-electrons.com>
*/
#include <linux/clk-provider.h>
#include <linux/io.h>
#include "ccu_gate.h"
#include "ccu_div.h"
static unsigned long ccu_div_round_rate(struct ccu_mux_internal *mux,
<------><------><------><------><------>struct clk_hw *parent,
<------><------><------><------><------>unsigned long *parent_rate,
<------><------><------><------><------>unsigned long rate,
<------><------><------><------><------>void *data)
{
<------>struct ccu_div *cd = data;
<------>if (cd->common.features & CCU_FEATURE_FIXED_POSTDIV)
<------><------>rate *= cd->fixed_post_div;
<------>rate = divider_round_rate_parent(&cd->common.hw, parent,
<------><------><------><------><------> rate, parent_rate,
<------><------><------><------><------> cd->div.table, cd->div.width,
<------><------><------><------><------> cd->div.flags);
<------>if (cd->common.features & CCU_FEATURE_FIXED_POSTDIV)
<------><------>rate /= cd->fixed_post_div;
<------>return rate;
}
static void ccu_div_disable(struct clk_hw *hw)
{
<------>struct ccu_div *cd = hw_to_ccu_div(hw);
<------>return ccu_gate_helper_disable(&cd->common, cd->enable);
}
static int ccu_div_enable(struct clk_hw *hw)
{
<------>struct ccu_div *cd = hw_to_ccu_div(hw);
<------>return ccu_gate_helper_enable(&cd->common, cd->enable);
}
static int ccu_div_is_enabled(struct clk_hw *hw)
{
<------>struct ccu_div *cd = hw_to_ccu_div(hw);
<------>return ccu_gate_helper_is_enabled(&cd->common, cd->enable);
}
static unsigned long ccu_div_recalc_rate(struct clk_hw *hw,
<------><------><------><------><------>unsigned long parent_rate)
{
<------>struct ccu_div *cd = hw_to_ccu_div(hw);
<------>unsigned long val;
<------>u32 reg;
<------>reg = readl(cd->common.base + cd->common.reg);
<------>val = reg >> cd->div.shift;
<------>val &= (1 << cd->div.width) - 1;
<------>parent_rate = ccu_mux_helper_apply_prediv(&cd->common, &cd->mux, -1,
<------><------><------><------><------><------> parent_rate);
<------>val = divider_recalc_rate(hw, parent_rate, val, cd->div.table,
<------><------><------><------> cd->div.flags, cd->div.width);
<------>if (cd->common.features & CCU_FEATURE_FIXED_POSTDIV)
<------><------>val /= cd->fixed_post_div;
<------>return val;
}
static int ccu_div_determine_rate(struct clk_hw *hw,
<------><------><------><------>struct clk_rate_request *req)
{
<------>struct ccu_div *cd = hw_to_ccu_div(hw);
<------>return ccu_mux_helper_determine_rate(&cd->common, &cd->mux,
<------><------><------><------><------> req, ccu_div_round_rate, cd);
}
static int ccu_div_set_rate(struct clk_hw *hw, unsigned long rate,
<------><------><------> unsigned long parent_rate)
{
<------>struct ccu_div *cd = hw_to_ccu_div(hw);
<------>unsigned long flags;
<------>unsigned long val;
<------>u32 reg;
<------>parent_rate = ccu_mux_helper_apply_prediv(&cd->common, &cd->mux, -1,
<------><------><------><------><------><------> parent_rate);
<------>if (cd->common.features & CCU_FEATURE_FIXED_POSTDIV)
<------><------>rate *= cd->fixed_post_div;
<------>val = divider_get_val(rate, parent_rate, cd->div.table, cd->div.width,
<------><------><------> cd->div.flags);
<------>spin_lock_irqsave(cd->common.lock, flags);
<------>reg = readl(cd->common.base + cd->common.reg);
<------>reg &= ~GENMASK(cd->div.width + cd->div.shift - 1, cd->div.shift);
<------>writel(reg | (val << cd->div.shift),
<------> cd->common.base + cd->common.reg);
<------>spin_unlock_irqrestore(cd->common.lock, flags);
<------>return 0;
}
static u8 ccu_div_get_parent(struct clk_hw *hw)
{
<------>struct ccu_div *cd = hw_to_ccu_div(hw);
<------>return ccu_mux_helper_get_parent(&cd->common, &cd->mux);
}
static int ccu_div_set_parent(struct clk_hw *hw, u8 index)
{
<------>struct ccu_div *cd = hw_to_ccu_div(hw);
<------>return ccu_mux_helper_set_parent(&cd->common, &cd->mux, index);
}
const struct clk_ops ccu_div_ops = {
<------>.disable = ccu_div_disable,
<------>.enable = ccu_div_enable,
<------>.is_enabled = ccu_div_is_enabled,
<------>.get_parent = ccu_div_get_parent,
<------>.set_parent = ccu_div_set_parent,
<------>.determine_rate = ccu_div_determine_rate,
<------>.recalc_rate = ccu_div_recalc_rate,
<------>.set_rate = ccu_div_set_rate,
};