Alex Frid
7a7ebd4523
Added DFLL tune high margin voltage entry in CVB table. This allows to
replace current fixed margin defined as number of DFLL voltage steps
with per-table/per-chip margin in millivolts, and convert it to steps
during DFLL initialization.
Bug 1967884
Change-Id: I56268ae2faf9cc633b9f988cacbfd0ea3ba77ff3
Signed-off-by: Alex Frid <afrid@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1576307
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
51 lines
1.7 KiB
C
51 lines
1.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* clk-dfll.h - prototypes and macros for the Tegra DFLL clocksource driver
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* Copyright (C) 2013-2019 NVIDIA Corporation. All rights reserved.
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*
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* Aleksandr Frid <afrid@nvidia.com>
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* Paul Walmsley <pwalmsley@nvidia.com>
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*/
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#ifndef __DRIVERS_CLK_TEGRA_CLK_DFLL_H
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#define __DRIVERS_CLK_TEGRA_CLK_DFLL_H
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#include <linux/platform_device.h>
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#include <linux/reset.h>
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#include <linux/types.h>
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#include "cvb.h"
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/**
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* struct tegra_dfll_soc_data - SoC-specific hooks/integration for the DFLL driver
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* @dev: struct device * that holds the OPP table for the DFLL
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* @max_freq: maximum frequency supported on this SoC
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* @cvb: CPU frequency table for this SoC
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* @alignment: parameters of the regulator step and offset
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* @init_clock_trimmers: callback to initialize clock trimmers
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* @set_clock_trimmers_high: callback to tune clock trimmers for high voltage
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* @set_clock_trimmers_low: callback to tune clock trimmers for low voltage
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*/
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struct tegra_dfll_soc_data {
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struct device *dev;
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unsigned long max_freq;
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const struct cvb_table *cvb;
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struct rail_alignment alignment;
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unsigned int min_millivolts;
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unsigned int tune_high_min_millivolts;
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void (*init_clock_trimmers)(void);
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void (*set_clock_trimmers_high)(void);
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void (*set_clock_trimmers_low)(void);
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};
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int tegra_dfll_register(struct platform_device *pdev,
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struct tegra_dfll_soc_data *soc);
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struct tegra_dfll_soc_data *tegra_dfll_unregister(struct platform_device *pdev);
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int tegra_dfll_runtime_suspend(struct device *dev);
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int tegra_dfll_runtime_resume(struct device *dev);
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int tegra_dfll_suspend(struct device *dev);
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int tegra_dfll_resume(struct device *dev);
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#endif /* __DRIVERS_CLK_TEGRA_CLK_DFLL_H */
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