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# Copyright 2017 OPNFV
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#Hostname ""

LoadPlugin cpufreq
LoadPlugin disk
LoadPlugin ethstat
LoadPlugin ipc
LoadPlugin ipmi
LoadPlugin load
LoadPlugin memory
LoadPlugin numa
LoadPlugin processes
LoadPlugin df
LoadPlugin turbostat
LoadPlugin uptime
LoadPlugin contextswitch
LoadPlugin irq
LoadPlugin df
LoadPlugin swap
al.Number */ .highlight .s { color: #dd2200; background-color: #fff0f0 } /* Literal.String */ .highlight .na { color: #336699 } /* Name.Attribute */ .highlight .nb { color: #003388 } /* Name.Builtin */ .highlight .nc { color: #bb0066; font-weight: bold } /* Name.Class */ .highlight .no { color: #003366; font-weight: bold } /* Name.Constant */ .highlight .nd { color: #555555 } /* Name.Decorator */ .highlight .ne { color: #bb0066; font-weight: bold } /* Name.Exception */ .highlight .nf { color: #0066bb; font-weight: bold } /* Name.Function */ .highlight .nl { color: #336699; font-style: italic } /* Name.Label */ .highlight .nn { color: #bb0066; font-weight: bold } /* Name.Namespace */ .highlight .py { color: #336699; font-weight: bold } /* Name.Property */ .highlight .nt { color: #bb0066; font-weight: bold } /* Name.Tag */ .highlight .nv { color: #336699 } /* Name.Variable */ .highlight .ow { color: #008800 } /* Operator.Word */ .highlight .w { color: #bbbbbb } /* Text.Whitespace */ .highlight .mb { color: #0000DD; font-weight: bold } /* Literal.Number.Bin */ .highlight .mf { color: #0000DD; font-weight: bold } /* Literal.Number.Float */ .highlight .mh { color: #0000DD; font-weight: bold } /* Literal.Number.Hex */ .highlight .mi { color: #0000DD; font-weight: bold } /* Literal.Number.Integer */ .highlight .mo { color: #0000DD; font-weight: bold } /* Literal.Number.Oct */ .highlight .sa { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Affix */ .highlight .sb { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Backtick */ .highlight .sc { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Char */ .highlight .dl { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Delimiter */ .highlight .sd { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Doc */ .highlight .s2 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Double */ .highlight .se { color: #0044dd; background-color: #fff0f0 } /* Literal.String.Escape */ .highlight .sh { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Heredoc */ .highlight .si { color: #3333bb; background-color: #fff0f0 } /* Literal.String.Interpol */ .highlight .sx { color: #22bb22; background-color: #f0fff0 } /* Literal.String.Other */ .highlight .sr { color: #008800; background-color: #fff0ff } /* Literal.String.Regex */ .highlight .s1 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Single */ .highlight .ss { color: #aa6600; background-color: #fff0f0 } /* Literal.String.Symbol */ .highlight .bp { color: #003388 } /* Name.Builtin.Pseudo */ .highlight .fm { color: #0066bb; font-weight: bold } /* Name.Function.Magic */ .highlight .vc { color: #336699 } /* Name.Variable.Class */ .highlight .vg { color: #dd7700 } /* Name.Variable.Global */ .highlight .vi { color: #3333bb } /* Name.Variable.Instance */ .highlight .vm { color: #336699 } /* Name.Variable.Magic */ .highlight .il { color: #0000DD; font-weight: bold } /* Literal.Number.Integer.Long */ } 
/*
 * Copyright 2015 Chen-Yu Tsai
 *
 * Chen-Yu Tsai	<wens@csie.org>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * 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.
 */

#include <linux/clk-provider.h>
#include <linux/clkdev.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/reset.h>
#include <linux/platform_device.h>
#include <linux/reset-controller.h>
#include <linux/spinlock.h>

#define SUN9I_MMC_WIDTH		4

#define SUN9I_MMC_GATE_BIT	16
#define SUN9I_MMC_RESET_BIT	18

struct sun9i_mmc_clk_data {
	spinlock_t			lock;
	void __iomem			*membase;
	struct clk			*clk;
	struct reset_control		*reset;
	struct clk_onecell_data		clk_data;
	struct reset_controller_dev	rcdev;
};

static int sun9i_mmc_reset_assert(struct reset_controller_dev *rcdev,
			      unsigned long id)
{
	struct sun9i_mmc_clk_data *data = container_of(rcdev,
						       struct sun9i_mmc_clk_data,
						       rcdev);
	unsigned long flags;
	void __iomem *reg = data->membase + SUN9I_MMC_WIDTH * id;
	u32 val;

	clk_prepare_enable(data->clk);
	spin_lock_irqsave(&data->lock, flags);

	val = readl(reg);
	writel(val & ~BIT(SUN9I_MMC_RESET_BIT), reg);

	spin_unlock_irqrestore(&data->lock, flags);
	clk_disable_unprepare(data->clk);

	return 0;
}

static int sun9i_mmc_reset_deassert(struct reset_controller_dev *rcdev,
				unsigned long id)
{
	struct sun9i_mmc_clk_data *data = container_of(rcdev,
						       struct sun9i_mmc_clk_data,
						       rcdev);
	unsigned long flags;
	void __iomem *reg = data->membase + SUN9I_MMC_WIDTH * id;
	u32 val;

	clk_prepare_enable(data->clk);
	spin_lock_irqsave(&data->lock, flags);

	val = readl(reg);
	writel(val | BIT(SUN9I_MMC_RESET_BIT), reg);

	spin_unlock_irqrestore(&data->lock, flags);
	clk_disable_unprepare(data->clk);

	return 0;
}

static struct reset_control_ops sun9i_mmc_reset_ops = {
	.assert		= sun9i_mmc_reset_assert,
	.deassert	= sun9i_mmc_reset_deassert,
};

static int sun9i_a80_mmc_config_clk_probe(struct platform_device *pdev)
{
	struct device_node *np = pdev->dev.of_node;
	struct sun9i_mmc_clk_data *data;
	struct clk_onecell_data *clk_data;
	const char *clk_name = np->name;
	const char *clk_parent;
	struct resource *r;
	int count, i, ret;

	data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
	if (!data)
		return -ENOMEM;

	spin_lock_init(&data->lock);

	r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
	/* one clock/reset pair per word */
	count = DIV_ROUND_UP((r->end - r->start + 1), SUN9I_MMC_WIDTH);
	data->membase = devm_ioremap_resource(&pdev->dev, r);
	if (IS_ERR(data->membase))
		return PTR_ERR(data->membase);

	clk_data = &data->clk_data;
	clk_data->clk_num = count;
	clk_data->clks = devm_kcalloc(&pdev->dev, count, sizeof(struct clk *),
				      GFP_KERNEL);
	if (!clk_data->clks)
		return -ENOMEM;

	data->clk = devm_clk_get(&pdev->dev, NULL);
	if (IS_ERR(data->clk)) {
		dev_err(&pdev->dev, "Could not get clock\n");
		return PTR_ERR(data->clk);
	}

	data->reset = devm_reset_control_get(&pdev->dev, NULL);
	if (IS_ERR(data->reset)) {
		dev_err(&pdev->dev, "Could not get reset control\n");
		return PTR_ERR(data->reset);
	}

	ret = reset_control_deassert(data->reset);
	if (ret) {
		dev_err(&pdev->dev, "Reset deassert err %d\n", ret);
		return ret;
	}

	clk_parent = __clk_get_name(data->clk);
	for (i = 0; i < count; i++) {
		of_property_read_string_index(np, "clock-output-names",
					      i, &clk_name);

		clk_data->clks[i] = clk_register_gate(&pdev->dev, clk_name,
						      clk_parent, 0,
						      data->membase + SUN9I_MMC_WIDTH * i,
						      SUN9I_MMC_GATE_BIT, 0,
						      &data->lock);

		if (IS_ERR(clk_data->clks[i])) {
			ret = PTR_ERR(clk_data->clks[i]);
			goto err_clk_register;
		}
	}

	ret = of_clk_add_provider(np, of_clk_src_onecell_get, clk_data);
	if (ret)
		goto err_clk_provider;

	data->rcdev.owner = THIS_MODULE;
	data->rcdev.nr_resets = count;
	data->rcdev.ops = &sun9i_mmc_reset_ops;
	data->rcdev.of_node = pdev->dev.of_node;

	ret = reset_controller_register(&data->rcdev);
	if (ret)
		goto err_rc_reg;

	platform_set_drvdata(pdev, data);

	return 0;

err_rc_reg:
	of_clk_del_provider(np);

err_clk_provider:
	for (i = 0; i < count; i++)
		clk_unregister(clk_data->clks[i]);

err_clk_register:
	reset_control_assert(data->reset);

	return ret;
}

static int sun9i_a80_mmc_config_clk_remove(struct platform_device *pdev)
{
	struct device_node *np = pdev->dev.of_node;
	struct sun9i_mmc_clk_data *data = platform_get_drvdata(pdev);
	struct clk_onecell_data *clk_data = &data->clk_data;
	int i;

	reset_controller_unregister(&data->rcdev);
	of_clk_del_provider(np);
	for (i = 0; i < clk_data->clk_num; i++)
		clk_unregister(clk_data->clks[i]);

	reset_control_assert(data->reset);

	return 0;
}

static const struct of_device_id sun9i_a80_mmc_config_clk_dt_ids[] = {
	{ .compatible = "allwinner,sun9i-a80-mmc-config-clk" },
	{ /* sentinel */ }
};

static struct platform_driver sun9i_a80_mmc_config_clk_driver = {
	.driver = {
		.name = "sun9i-a80-mmc-config-clk",
		.of_match_table = sun9i_a80_mmc_config_clk_dt_ids,
	},
	.probe = sun9i_a80_mmc_config_clk_probe,
	.remove = sun9i_a80_mmc_config_clk_remove,
};
module_platform_driver(sun9i_a80_mmc_config_clk_driver);

MODULE_AUTHOR("Chen-Yu Tsai <wens@csie.org>");
MODULE_DESCRIPTION("Allwinner A80 MMC clock/reset Driver");
MODULE_LICENSE("GPL v2");