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Diffstat (limited to 'tools/perf/scripts/python/event_analyzing_sample.py')

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// SPDX-License-Identifier: GPL-2.0-only /* * Clkout driver for Rockchip RK808 * * Copyright (c) 2014, Fuzhou Rockchip Electronics Co., Ltd * * Author:Chris Zhong <zyw@rock-chips.com> */ #include <linux/clk-provider.h> #include <linux/module.h> #include <linux/slab.h> #include <linux/platform_device.h> #include <linux/mfd/rk808.h> struct rk808_clkout { struct regmap *regmap; struct clk_hw clkout1_hw; struct clk_hw clkout2_hw; }; static unsigned long rk808_clkout_recalc_rate(struct clk_hw *hw, unsigned long parent_rate) { return 32768; } static int rk808_clkout2_enable(struct clk_hw *hw, bool enable) { struct rk808_clkout *rk808_clkout = container_of(hw, struct rk808_clkout, clkout2_hw); return regmap_update_bits(rk808_clkout->regmap, RK808_CLK32OUT_REG, CLK32KOUT2_EN, enable ? CLK32KOUT2_EN : 0); } static int rk808_clkout2_prepare(struct clk_hw *hw) { return rk808_clkout2_enable(hw, true); } static void rk808_clkout2_unprepare(struct clk_hw *hw) { rk808_clkout2_enable(hw, false); } static int rk808_clkout2_is_prepared(struct clk_hw *hw) { struct rk808_clkout *rk808_clkout = container_of(hw, struct rk808_clkout, clkout2_hw); uint32_t val; int ret = regmap_read(rk808_clkout->regmap, RK808_CLK32OUT_REG, &val); if (ret < 0) return ret; return (val & CLK32KOUT2_EN) ? 1 : 0; } static const struct clk_ops rk808_clkout1_ops = { .recalc_rate = rk808_clkout_recalc_rate, }; static const struct clk_ops rk808_clkout2_ops = { .prepare = rk808_clkout2_prepare, .unprepare = rk808_clkout2_unprepare, .is_prepared = rk808_clkout2_is_prepared, .recalc_rate = rk808_clkout_recalc_rate, }; static struct clk_hw * of_clk_rk808_get(struct of_phandle_args *clkspec, void *data) { struct rk808_clkout *rk808_clkout = data; unsigned int idx = clkspec->args[0]; if (idx >= 2) { pr_err("%s: invalid index %u\n", __func__, idx); return ERR_PTR(-EINVAL); } return idx ? &rk808_clkout->clkout2_hw : &rk808_clkout->clkout1_hw; } static int rk817_clkout2_enable(struct clk_hw *hw, bool enable) { struct rk808_clkout *rk808_clkout = container_of(hw, struct rk808_clkout, clkout2_hw); return regmap_update_bits(rk808_clkout->regmap, RK817_SYS_CFG(1), RK817_CLK32KOUT2_EN, enable ? RK817_CLK32KOUT2_EN : 0); } static int rk817_clkout2_prepare(struct clk_hw *hw) { return rk817_clkout2_enable(hw, true); } static void rk817_clkout2_unprepare(struct clk_hw *hw) { rk817_clkout2_enable(hw, false); } static int rk817_clkout2_is_prepared(struct clk_hw *hw) { struct rk808_clkout *rk808_clkout = container_of(hw, struct rk808_clkout, clkout2_hw); unsigned int val; int ret = regmap_read(rk808_clkout->regmap, RK817_SYS_CFG(1), &val); if (ret < 0) return 0; return (val & RK817_CLK32KOUT2_EN) ? 1 : 0; } static const struct clk_ops rk817_clkout2_ops = { .prepare = rk817_clkout2_prepare, .unprepare = rk817_clkout2_unprepare, .is_prepared = rk817_clkout2_is_prepared, .recalc_rate = rk808_clkout_recalc_rate, }; static const struct clk_ops *rkpmic_get_ops(long variant) { switch (variant) { case RK809_ID: case RK817_ID: return &rk817_clkout2_ops; /* * For the default case, it match the following PMIC type. * RK805_ID * RK808_ID * RK818_ID */ default: return &rk808_clkout2_ops; } } static int rk808_clkout_probe(struct platform_device *pdev) { struct rk808 *rk808 = dev_get_drvdata(pdev->dev.parent); struct device *dev = &pdev->dev; struct clk_init_data init = {}; struct rk808_clkout *rk808_clkout; int ret; dev->of_node = pdev->dev.parent->of_node; rk808_clkout = devm_kzalloc(dev, sizeof(*rk808_clkout), GFP_KERNEL); if (!rk808_clkout) return -ENOMEM; rk808_clkout->regmap = dev_get_regmap(pdev->dev.parent, NULL); if (!rk808_clkout->regmap) return -ENODEV; init.parent_names = NULL; init.num_parents = 0; init.name = "rk808-clkout1"; init.ops = &rk808_clkout1_ops; rk808_clkout->clkout1_hw.init = &init; /* optional override of the clockname */ of_property_read_string_index(dev->of_node, "clock-output-names", 0, &init.name); ret = devm_clk_hw_register(dev, &rk808_clkout->clkout1_hw); if (ret) return ret; init.name = "rk808-clkout2"; init.ops = rkpmic_get_ops(rk808->variant); rk808_clkout->clkout2_hw.init = &init; /* optional override of the clockname */ of_property_read_string_index(dev->of_node, "clock-output-names", 1, &init.name); ret = devm_clk_hw_register(dev, &rk808_clkout->clkout2_hw); if (ret) return ret; return devm_of_clk_add_hw_provider(&pdev->dev, of_clk_rk808_get, rk808_clkout); } static struct platform_driver rk808_clkout_driver = { .probe = rk808_clkout_probe, .driver = { .name = "rk808-clkout", }, }; module_platform_driver(rk808_clkout_driver); MODULE_DESCRIPTION("Clkout driver for the rk808 series PMICs"); MODULE_AUTHOR("Chris Zhong <zyw@rock-chips.com>"); MODULE_LICENSE("GPL"); MODULE_ALIAS("platform:rk808-clkout");


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