diff options
Diffstat (limited to 'drivers/pinctrl/renesas/pinctrl.c')
| -rw-r--r-- | drivers/pinctrl/renesas/pinctrl.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/drivers/pinctrl/renesas/pinctrl.c b/drivers/pinctrl/renesas/pinctrl.c index 3a742f74ecd1..8585ed4bcfe0 100644 --- a/drivers/pinctrl/renesas/pinctrl.c +++ b/drivers/pinctrl/renesas/pinctrl.c @@ -719,6 +719,30 @@ static int sh_pfc_pinconf_set(struct pinctrl_dev *pctldev, unsigned _pin, return 0; } +static int sh_pfc_pinconf_group_get(struct pinctrl_dev *pctldev, + unsigned int group, unsigned long *config) +{ + struct sh_pfc_pinctrl *pmx = pinctrl_dev_get_drvdata(pctldev); + const unsigned int *pins = pmx->pfc->info->groups[group].pins; + unsigned int num_pins = pmx->pfc->info->groups[group].nr_pins; + unsigned long prev_config = 0; + int ret; + + for (unsigned int i = 0; i < num_pins; ++i) { + ret = sh_pfc_pinconf_get(pctldev, pins[i], config); + if (ret) + return ret; + + /* configs should match for all pins in the group */ + if (i && prev_config != *config) + return -ENOTSUPP; + + prev_config = *config; + } + + return 0; +} + static int sh_pfc_pinconf_group_set(struct pinctrl_dev *pctldev, unsigned group, unsigned long *configs, unsigned num_configs) @@ -745,6 +769,7 @@ static const struct pinconf_ops sh_pfc_pinconf_ops = { .is_generic = true, .pin_config_get = sh_pfc_pinconf_get, .pin_config_set = sh_pfc_pinconf_set, + .pin_config_group_get = sh_pfc_pinconf_group_get, .pin_config_group_set = sh_pfc_pinconf_group_set, .pin_config_config_dbg_show = pinconf_generic_dump_config, }; |