diff options
Diffstat (limited to 'drivers/pinctrl/pinmux.c')
| -rw-r--r-- | drivers/pinctrl/pinmux.c | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/drivers/pinctrl/pinmux.c b/drivers/pinctrl/pinmux.c index 3ffa9324ed8..7c3193f7a04 100644 --- a/drivers/pinctrl/pinmux.c +++ b/drivers/pinctrl/pinmux.c @@ -889,8 +889,11 @@ void pinmux_disable(struct pinmux *pmx) } EXPORT_SYMBOL_GPL(pinmux_disable); -int pinmux_check_ops(const struct pinmux_ops *ops) +int pinmux_check_ops(struct pinctrl_dev *pctldev) { + const struct pinmux_ops *ops = pctldev->desc->pmxops; + unsigned selector = 0; + /* Check that we implement required operations */ if (!ops->list_functions || !ops->get_function_name || @@ -899,6 +902,18 @@ int pinmux_check_ops(const struct pinmux_ops *ops) !ops->disable) return -EINVAL; + /* Check that all functions registered have names */ + while (ops->list_functions(pctldev, selector) >= 0) { + const char *fname = ops->get_function_name(pctldev, + selector); + if (!fname) { + pr_err("pinmux ops has no name for function%u\n", + selector); + return -EINVAL; + } + selector++; + } + return 0; } |