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acdb124539
Add a helper to look up bias registers and bit number for a specific pin, using the generic bias register description. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
43 lines
1.2 KiB
C
43 lines
1.2 KiB
C
/*
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* SuperH Pin Function Controller support.
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*
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* Copyright (C) 2012 Renesas Solutions Corp.
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*/
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#ifndef __SH_PFC_CORE_H__
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#define __SH_PFC_CORE_H__
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#include <linux/types.h>
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#include "sh_pfc.h"
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struct sh_pfc_pin_range {
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u16 start;
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u16 end;
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};
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int sh_pfc_register_gpiochip(struct sh_pfc *pfc);
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int sh_pfc_register_pinctrl(struct sh_pfc *pfc);
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u32 sh_pfc_read_raw_reg(void __iomem *mapped_reg, unsigned int reg_width);
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void sh_pfc_write_raw_reg(void __iomem *mapped_reg, unsigned int reg_width,
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u32 data);
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u32 sh_pfc_read(struct sh_pfc *pfc, u32 reg);
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void sh_pfc_write(struct sh_pfc *pfc, u32 reg, u32 data);
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int sh_pfc_get_pin_index(struct sh_pfc *pfc, unsigned int pin);
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int sh_pfc_config_mux(struct sh_pfc *pfc, unsigned mark, int pinmux_type);
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const struct sh_pfc_bias_info *
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sh_pfc_pin_to_bias_info(const struct sh_pfc_bias_info *info,
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unsigned int num, unsigned int pin);
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const struct pinmux_bias_reg *
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sh_pfc_pin_to_bias_reg(const struct sh_pfc *pfc, unsigned int pin,
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unsigned int *bit);
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#endif /* __SH_PFC_CORE_H__ */
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