Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit acdb1245 authored by Geert Uytterhoeven's avatar Geert Uytterhoeven
Browse files

pinctrl: sh-pfc: Add sh_pfc_pin_to_bias_reg() helper 



Add a helper to look up bias registers and bit number for a specific
pin, using the generic bias register description.

Signed-off-by: default avatarGeert Uytterhoeven <geert+renesas@glider.be>
parent beaa34d9

drivers/pinctrl/sh-pfc/core.c

+20 −0
Original line number Diff line number Diff line
@@ -404,6 +404,26 @@ sh_pfc_pin_to_bias_info(const struct sh_pfc_bias_info *info, 
	return NULL;

}



const struct pinmux_bias_reg *

sh_pfc_pin_to_bias_reg(const struct sh_pfc *pfc, unsigned int pin,

		       unsigned int *bit)

{

	unsigned int i, j;



	for (i = 0; pfc->info->bias_regs[i].puen; i++) {

		for (j = 0; j < ARRAY_SIZE(pfc->info->bias_regs[i].pins); j++) {

			if (pfc->info->bias_regs[i].pins[j] == pin) {

				*bit = j;

				return &pfc->info->bias_regs[i];

			}

		}

	}



	WARN_ONCE(1, "Pin %u is not in bias info list\n", pin);



	return NULL;

}



static int sh_pfc_init_ranges(struct sh_pfc *pfc)

{

	struct sh_pfc_pin_range *range;

drivers/pinctrl/sh-pfc/core.h

+3 −0
Original line number Diff line number Diff line
@@ -35,5 +35,8 @@ int sh_pfc_config_mux(struct sh_pfc *pfc, unsigned mark, int pinmux_type); 
const struct sh_pfc_bias_info *

sh_pfc_pin_to_bias_info(const struct sh_pfc_bias_info *info,

			unsigned int num, unsigned int pin);

const struct pinmux_bias_reg *

sh_pfc_pin_to_bias_reg(const struct sh_pfc *pfc, unsigned int pin,

		       unsigned int *bit);



#endif /* __SH_PFC_CORE_H__ */