diff options
| -rw-r--r-- | drivers/pinctrl/core.c | 29 | ||||
| -rw-r--r-- | drivers/pinctrl/pinconf.c | 10 | ||||
| -rw-r--r-- | drivers/pinctrl/pinmux.c | 37 |
3 files changed, 49 insertions, 27 deletions
diff --git a/drivers/pinctrl/core.c b/drivers/pinctrl/core.c index 913c83e2bf1..138e72f7437 100644 --- a/drivers/pinctrl/core.c +++ b/drivers/pinctrl/core.c @@ -1391,37 +1391,29 @@ struct pinctrl_dev *pinctrl_register(struct pinctrl_desc *pctldesc, /* check core ops for sanity */ ret = pinctrl_check_ops(pctldev); if (ret) { - pr_err("%s pinctrl ops lacks necessary functions\n", - pctldesc->name); + dev_err(dev, "pinctrl ops lacks necessary functions\n"); goto out_err; } /* If we're implementing pinmuxing, check the ops for sanity */ if (pctldesc->pmxops) { ret = pinmux_check_ops(pctldev); - if (ret) { - pr_err("%s pinmux ops lacks necessary functions\n", - pctldesc->name); + if (ret) goto out_err; - } } /* If we're implementing pinconfig, check the ops for sanity */ if (pctldesc->confops) { ret = pinconf_check_ops(pctldev); - if (ret) { - pr_err("%s pin config ops lacks necessary functions\n", - pctldesc->name); + if (ret) goto out_err; - } } /* Register all the pins */ - pr_debug("try to register %d pins on %s...\n", - pctldesc->npins, pctldesc->name); + dev_dbg(dev, "try to register %d pins ...\n", pctldesc->npins); ret = pinctrl_register_pins(pctldev, pctldesc->pins, pctldesc->npins); if (ret) { - pr_err("error during pin registration\n"); + dev_err(dev, "error during pin registration\n"); pinctrl_free_pindescs(pctldev, pctldesc->pins, pctldesc->npins); goto out_err; @@ -1436,8 +1428,15 @@ struct pinctrl_dev *pinctrl_register(struct pinctrl_desc *pctldesc, struct pinctrl_state *s = pinctrl_lookup_state_locked(pctldev->p, PINCTRL_STATE_DEFAULT); - if (!IS_ERR(s)) - pinctrl_select_state_locked(pctldev->p, s); + if (IS_ERR(s)) { + dev_dbg(dev, "failed to lookup the default state\n"); + } else { + ret = pinctrl_select_state_locked(pctldev->p, s); + if (ret) { + dev_err(dev, + "failed to select default state\n"); + } + } } mutex_unlock(&pinctrl_mutex); diff --git a/drivers/pinctrl/pinconf.c b/drivers/pinctrl/pinconf.c index 14f48c96b20..7ce139ef7e6 100644 --- a/drivers/pinctrl/pinconf.c +++ b/drivers/pinctrl/pinconf.c @@ -28,11 +28,17 @@ int pinconf_check_ops(struct pinctrl_dev *pctldev) const struct pinconf_ops *ops = pctldev->desc->confops; /* We must be able to read out pin status */ - if (!ops->pin_config_get && !ops->pin_config_group_get) + if (!ops->pin_config_get && !ops->pin_config_group_get) { + dev_err(pctldev->dev, + "pinconf must be able to read out pin status\n"); return -EINVAL; + } /* We have to be able to config the pins in SOME way */ - if (!ops->pin_config_set && !ops->pin_config_group_set) + if (!ops->pin_config_set && !ops->pin_config_group_set) { + dev_err(pctldev->dev, + "pinconf has to be able to set a pins config\n"); return -EINVAL; + } return 0; } diff --git a/drivers/pinctrl/pinmux.c b/drivers/pinctrl/pinmux.c index 7cd0c7d0f2c..2df753508ec 100644 --- a/drivers/pinctrl/pinmux.c +++ b/drivers/pinctrl/pinmux.c @@ -42,9 +42,10 @@ int pinmux_check_ops(struct pinctrl_dev *pctldev) !ops->get_function_name || !ops->get_function_groups || !ops->enable || - !ops->disable) + !ops->disable) { + dev_err(pctldev->dev, "pinmux ops lacks necessary functions\n"); return -EINVAL; - + } /* Check that all functions registered have names */ nfuncs = ops->get_functions_count(pctldev); while (selector < nfuncs) { @@ -143,7 +144,7 @@ static int pin_request(struct pinctrl_dev *pctldev, status = 0; if (status) { - dev_err(pctldev->dev, "->request on device %s failed for pin %d\n", + dev_err(pctldev->dev, "request on device %s failed for pin %d\n", pctldev->desc->name, pin); module_put(pctldev->owner); } @@ -330,17 +331,26 @@ int pinmux_map_to_setting(struct pinctrl_map const *map, } ret = pinmux_func_name_to_selector(pctldev, map->data.mux.function); - if (ret < 0) + if (ret < 0) { + dev_err(pctldev->dev, "invalid function %s in map table\n", + map->data.mux.function); return ret; + } setting->data.mux.func = ret; ret = pmxops->get_function_groups(pctldev, setting->data.mux.func, &groups, &num_groups); - if (ret < 0) + if (ret < 0) { + dev_err(pctldev->dev, "can't query groups for function %s\n", + map->data.mux.function); return ret; - if (!num_groups) + } + if (!num_groups) { + dev_err(pctldev->dev, + "function %s can't be selected on any group\n", + map->data.mux.function); return -EINVAL; - + } if (map->data.mux.group) { bool found = false; group = map->data.mux.group; @@ -350,15 +360,22 @@ int pinmux_map_to_setting(struct pinctrl_map const *map, break; } } - if (!found) + if (!found) { + dev_err(pctldev->dev, + "invalid group \"%s\" for function \"%s\"\n", + group, map->data.mux.function); return -EINVAL; + } } else { group = groups[0]; } ret = pinctrl_get_group_selector(pctldev, group); - if (ret < 0) + if (ret < 0) { + dev_err(pctldev->dev, "invalid group %s in map table\n", + map->data.mux.group); return ret; + } setting->data.mux.group = ret; ret = pctlops->get_group_pins(pctldev, setting->data.mux.group, &pins, @@ -375,7 +392,7 @@ int pinmux_map_to_setting(struct pinctrl_map const *map, ret = pin_request(pctldev, pins[i], map->dev_name, NULL); if (ret) { dev_err(pctldev->dev, - "could not get request pin %d on device %s\n", + "could not request pin %d on device %s\n", pins[i], pinctrl_dev_get_name(pctldev)); /* On error release all taken pins */ i--; /* this pin just failed */ |