diff options
Diffstat (limited to 'drivers/clk/tegra/clk-dfll.h')
| -rw-r--r-- | drivers/clk/tegra/clk-dfll.h | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/drivers/clk/tegra/clk-dfll.h b/drivers/clk/tegra/clk-dfll.h new file mode 100644 index 000000000..fb209eb5f --- /dev/null +++ b/drivers/clk/tegra/clk-dfll.h @@ -0,0 +1,48 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * clk-dfll.h - prototypes and macros for the Tegra DFLL clocksource driver + * Copyright (C) 2013-2019 NVIDIA Corporation. All rights reserved. + * + * Aleksandr Frid <afrid@nvidia.com> + * Paul Walmsley <pwalmsley@nvidia.com> + */ + +#ifndef __DRIVERS_CLK_TEGRA_CLK_DFLL_H +#define __DRIVERS_CLK_TEGRA_CLK_DFLL_H + +#include <linux/platform_device.h> +#include <linux/reset.h> +#include <linux/types.h> + +#include "cvb.h" + +/** + * struct tegra_dfll_soc_data - SoC-specific hooks/integration for the DFLL driver + * @dev: struct device * that holds the OPP table for the DFLL + * @max_freq: maximum frequency supported on this SoC + * @cvb: CPU frequency table for this SoC + * @alignment: parameters of the regulator step and offset + * @init_clock_trimmers: callback to initialize clock trimmers + * @set_clock_trimmers_high: callback to tune clock trimmers for high voltage + * @set_clock_trimmers_low: callback to tune clock trimmers for low voltage + */ +struct tegra_dfll_soc_data { + struct device *dev; + unsigned long max_freq; + const struct cvb_table *cvb; + struct rail_alignment alignment; + + void (*init_clock_trimmers)(void); + void (*set_clock_trimmers_high)(void); + void (*set_clock_trimmers_low)(void); +}; + +int tegra_dfll_register(struct platform_device *pdev, + struct tegra_dfll_soc_data *soc); +struct tegra_dfll_soc_data *tegra_dfll_unregister(struct platform_device *pdev); +int tegra_dfll_runtime_suspend(struct device *dev); +int tegra_dfll_runtime_resume(struct device *dev); +int tegra_dfll_suspend(struct device *dev); +int tegra_dfll_resume(struct device *dev); + +#endif /* __DRIVERS_CLK_TEGRA_CLK_DFLL_H */ |