pinctrl: intel: merrifield: Add pin config group handlers

Pin config get() and set() handlers for pin groups were previously not
implemented by this driver. The pin_config_group_set() is particularly useful
for applying a common config setting to all pins in a specified group with a
single call, without the caller needing to reference each individual pin by
name.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

diff --git a/drivers/pinctrl/intel/pinctrl-merrifield.c b/drivers/pinctrl/intel/pinctrl-merrifield.c
index 7826c7f0cb7cac1959e0c8efb27a0c546f09b060..b21896126f760a5cbae044ab13cba527e9dbfeff 100644 (file)
--- a/drivers/pinctrl/intel/pinctrl-merrifield.c
+++ b/drivers/pinctrl/intel/pinctrl-merrifield.c
@@ -814,10 +814,51 @@ static int mrfld_config_set(struct pinctrl_dev *pctldev, unsigned int pin,
        return 0;
 }
 
+static int mrfld_config_group_get(struct pinctrl_dev *pctldev,
+                                 unsigned int group, unsigned long *config)
+{
+       const unsigned int *pins;
+       unsigned int npins;
+       int ret;
+
+       ret = mrfld_get_group_pins(pctldev, group, &pins, &npins);
+       if (ret)
+               return ret;
+
+       ret = mrfld_config_get(pctldev, pins[0], config);
+       if (ret)
+               return ret;
+
+       return 0;
+}
+
+static int mrfld_config_group_set(struct pinctrl_dev *pctldev,
+                                 unsigned int group, unsigned long *configs,
+                                 unsigned int num_configs)
+{
+       const unsigned int *pins;
+       unsigned int npins;
+       int i, ret;
+
+       ret = mrfld_get_group_pins(pctldev, group, &pins, &npins);
+       if (ret)
+               return ret;
+
+       for (i = 0; i < npins; i++) {
+               ret = mrfld_config_set(pctldev, pins[i], configs, num_configs);
+               if (ret)
+                       return ret;
+       }
+
+       return 0;
+}
+
 static const struct pinconf_ops mrfld_pinconf_ops = {
        .is_generic = true,
        .pin_config_get = mrfld_config_get,
        .pin_config_set = mrfld_config_set,
+       .pin_config_group_get = mrfld_config_group_get,
+       .pin_config_group_set = mrfld_config_group_set,
 };
 
 static const struct pinctrl_desc mrfld_pinctrl_desc = {