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b4cbe606dc
Add support for common interface of the common clock and reset driver for Toshiba Visconti5 and its SoC, TMPV7708. The PIPLLCT provides the PLL, and the PISMU provides clock and reset functionality. Each drivers are provided in this patch. Signed-off-by: Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@toshiba.co.jp> Link: https://lore.kernel.org/r/20211025031038.4180686-4-nobuhiro1.iwamatsu@toshiba.co.jp [sboyd@kernel.org: Add bitfield.h include to pll.c] Signed-off-by: Stephen Boyd <sboyd@kernel.org>
76 lines
1.6 KiB
C
76 lines
1.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Toshiba Visconti clock controller
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*
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* Copyright (c) 2021 TOSHIBA CORPORATION
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* Copyright (c) 2021 Toshiba Electronic Devices & Storage Corporation
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*
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* Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@toshiba.co.jp>
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*/
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#ifndef _VISCONTI_CLKC_H_
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#define _VISCONTI_CLKC_H_
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#include <linux/mfd/syscon.h>
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#include <linux/clk-provider.h>
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#include <linux/of.h>
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#include <linux/of_address.h>
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#include <linux/delay.h>
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#include <linux/regmap.h>
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#include <linux/slab.h>
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#include <linux/string.h>
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#include <linux/io.h>
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#include <linux/spinlock.h>
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#include "reset.h"
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struct visconti_clk_provider {
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struct device *dev;
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struct regmap *regmap;
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struct clk_hw_onecell_data clk_data;
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};
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struct visconti_clk_gate_table {
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unsigned int id;
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const char *name;
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const struct clk_parent_data *parent_data;
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u8 num_parents;
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u8 flags;
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u32 ckon_offset;
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u32 ckoff_offset;
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u8 ck_idx;
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unsigned int div;
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u8 rs_id;
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};
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struct visconti_fixed_clk {
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unsigned int id;
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const char *name;
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const char *parent;
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unsigned long flag;
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unsigned int mult;
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unsigned int div;
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};
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struct visconti_clk_gate {
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struct clk_hw hw;
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struct regmap *regmap;
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u32 ckon_offset;
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u32 ckoff_offset;
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u8 ck_idx;
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u8 flags;
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u32 rson_offset;
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u32 rsoff_offset;
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u8 rs_idx;
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spinlock_t *lock;
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};
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struct visconti_clk_provider *visconti_init_clk(struct device *dev,
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struct regmap *regmap,
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unsigned long nr_clks);
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int visconti_clk_register_gates(struct visconti_clk_provider *data,
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const struct visconti_clk_gate_table *clks,
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int num_gate,
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const struct visconti_reset_data *reset,
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spinlock_t *lock);
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#endif /* _VISCONTI_CLKC_H_ */
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