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-rw-r--r--drivers/pinctrl/core.c29
-rw-r--r--drivers/pinctrl/pinconf.c10
-rw-r--r--drivers/pinctrl/pinmux.c37
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 */
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-23 12:15:53 +0000