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authorGustavo Padovan <gustavo.padovan@collabora.co.uk>2013-09-27 11:56:14 -0300
committerGustavo Padovan <gustavo.padovan@collabora.co.uk>2013-09-27 11:56:14 -0300
commit1025c04cecd19882e28f16c4004034b475c372c5 (patch)
tree2b7402887e86d54bff5a123228c9059eae5e32bd /drivers/pinctrl/pinmux.c
parent4375f1037d52602413142e290608d0d84671ad36 (diff)
parent5bcecf325378218a8e248bb6bcae96ec7362f8ef (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth
Conflicts: net/bluetooth/hci_core.c
Diffstat (limited to 'drivers/pinctrl/pinmux.c')
-rw-r--r--drivers/pinctrl/pinmux.c51
1 files changed, 40 insertions, 11 deletions
diff --git a/drivers/pinctrl/pinmux.c b/drivers/pinctrl/pinmux.c
index 88cc5095d0c..9d144a263dc 100644
--- a/drivers/pinctrl/pinmux.c
+++ b/drivers/pinctrl/pinmux.c
@@ -400,10 +400,14 @@ int pinmux_enable_setting(struct pinctrl_setting const *setting)
ret = pctlops->get_group_pins(pctldev, setting->data.mux.group,
&pins, &num_pins);
if (ret) {
+ const char *gname;
+
/* errors only affect debug data, so just warn */
+ gname = pctlops->get_group_name(pctldev,
+ setting->data.mux.group);
dev_warn(pctldev->dev,
- "could not get pins for group selector %d\n",
- setting->data.mux.group);
+ "could not get pins for group %s\n",
+ gname);
num_pins = 0;
}
@@ -411,9 +415,18 @@ int pinmux_enable_setting(struct pinctrl_setting const *setting)
for (i = 0; i < num_pins; i++) {
ret = pin_request(pctldev, pins[i], setting->dev_name, NULL);
if (ret) {
+ const char *gname;
+ const char *pname;
+
+ desc = pin_desc_get(pctldev, pins[i]);
+ pname = desc ? desc->name : "non-existing";
+ gname = pctlops->get_group_name(pctldev,
+ setting->data.mux.group);
dev_err(pctldev->dev,
- "could not request pin %d on device %s\n",
- pins[i], pinctrl_dev_get_name(pctldev));
+ "could not request pin %d (%s) from group %s "
+ " on device %s\n",
+ pins[i], pname, gname,
+ pinctrl_dev_get_name(pctldev));
goto err_pin_request;
}
}
@@ -466,10 +479,14 @@ void pinmux_disable_setting(struct pinctrl_setting const *setting)
ret = pctlops->get_group_pins(pctldev, setting->data.mux.group,
&pins, &num_pins);
if (ret) {
+ const char *gname;
+
/* errors only affect debug data, so just warn */
+ gname = pctlops->get_group_name(pctldev,
+ setting->data.mux.group);
dev_warn(pctldev->dev,
- "could not get pins for group selector %d\n",
- setting->data.mux.group);
+ "could not get pins for group %s\n",
+ gname);
num_pins = 0;
}
@@ -482,12 +499,24 @@ void pinmux_disable_setting(struct pinctrl_setting const *setting)
pins[i]);
continue;
}
- desc->mux_setting = NULL;
- }
+ if (desc->mux_setting == &(setting->data.mux)) {
+ desc->mux_setting = NULL;
+ /* And release the pin */
+ pin_free(pctldev, pins[i], NULL);
+ } else {
+ const char *gname;
+ const char *pname;
- /* And release the pins */
- for (i = 0; i < num_pins; i++)
- pin_free(pctldev, pins[i], NULL);
+ pname = desc ? desc->name : "non-existing";
+ gname = pctlops->get_group_name(pctldev,
+ setting->data.mux.group);
+ dev_warn(pctldev->dev,
+ "not freeing pin %d (%s) as part of "
+ "deactivating group %s - it is already "
+ "used for some other setting",
+ pins[i], pname, gname);
+ }
+ }
if (ops->disable)
ops->disable(pctldev, setting->data.mux.func, setting->data.mux.group);