diff options
Diffstat (limited to 'drivers/clk/visconti/pll.h')
| -rw-r--r-- | drivers/clk/visconti/pll.h | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/drivers/clk/visconti/pll.h b/drivers/clk/visconti/pll.h new file mode 100644 index 000000000000..16dae35ab370 --- /dev/null +++ b/drivers/clk/visconti/pll.h @@ -0,0 +1,62 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright (c) 2021 TOSHIBA CORPORATION + * Copyright (c) 2021 Toshiba Electronic Devices & Storage Corporation + * + * Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@toshiba.co.jp> + */ + +#ifndef _VISCONTI_PLL_H_ +#define _VISCONTI_PLL_H_ + +#include <linux/clk-provider.h> +#include <linux/regmap.h> +#include <linux/spinlock.h> + +struct visconti_pll_provider { + void __iomem *reg_base; + struct regmap *regmap; + struct clk_hw_onecell_data clk_data; + struct device_node *node; +}; + +#define VISCONTI_PLL_RATE(_rate, _dacen, _dsmen, \ + _refdiv, _intin, _fracin, _postdiv1, _postdiv2) \ +{ \ + .rate = _rate, \ + .dacen = _dacen, \ + .dsmen = _dsmen, \ + .refdiv = _refdiv, \ + .intin = _intin, \ + .fracin = _fracin, \ + .postdiv1 = _postdiv1, \ + .postdiv2 = _postdiv2 \ +} + +struct visconti_pll_rate_table { + unsigned long rate; + unsigned int dacen; + unsigned int dsmen; + unsigned int refdiv; + unsigned long intin; + unsigned long fracin; + unsigned int postdiv1; + unsigned int postdiv2; +}; + +struct visconti_pll_info { + unsigned int id; + const char *name; + const char *parent; + unsigned long base_reg; + const struct visconti_pll_rate_table *rate_table; +}; + +struct visconti_pll_provider * __init visconti_init_pll(struct device_node *np, + void __iomem *base, + unsigned long nr_plls); +void visconti_register_plls(struct visconti_pll_provider *ctx, + const struct visconti_pll_info *list, + unsigned int nr_plls, spinlock_t *lock); + +#endif /* _VISCONTI_PLL_H_ */ |