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-rw-r--r--drivers/clk/tegra/clk-dfll.h48
1 files changed, 48 insertions, 0 deletions
diff --git a/drivers/clk/tegra/clk-dfll.h b/drivers/clk/tegra/clk-dfll.h
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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 */