diff options
Diffstat (limited to 'drivers/pinctrl/renesas/pfc.c')
| -rw-r--r-- | drivers/pinctrl/renesas/pfc.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/drivers/pinctrl/renesas/pfc.c b/drivers/pinctrl/renesas/pfc.c index b7b74985a3..6670072504 100644 --- a/drivers/pinctrl/renesas/pfc.c +++ b/drivers/pinctrl/renesas/pfc.c @@ -448,6 +448,35 @@ static const char *sh_pfc_pinctrl_get_function_name(struct udevice *dev, return priv->pfc.info->functions[selector].name; } +int sh_pfc_config_mux_for_gpio(struct udevice *dev, unsigned pin_selector) +{ + struct sh_pfc_pinctrl_priv *priv = dev_get_priv(dev); + struct sh_pfc_pinctrl *pmx = &priv->pmx; + struct sh_pfc *pfc = &priv->pfc; + struct sh_pfc_pin_config *cfg; + const struct sh_pfc_pin *pin = NULL; + int i, idx; + + for (i = 1; i < pfc->info->nr_pins; i++) { + if (priv->pfc.info->pins[i].pin != pin_selector) + continue; + + pin = &priv->pfc.info->pins[i]; + break; + } + + if (!pin) + return -EINVAL; + + idx = sh_pfc_get_pin_index(pfc, pin->pin); + cfg = &pmx->configs[idx]; + + if (cfg->type != PINMUX_TYPE_NONE) + return -EBUSY; + + return sh_pfc_config_mux(pfc, pin->enum_id, PINMUX_TYPE_GPIO); +} + static int sh_pfc_pinctrl_pin_set(struct udevice *dev, unsigned pin_selector, unsigned func_selector) { |