pinctrl/lantiq: add output pinconf parameter

While converting the boards inside OpenWrt to OF I noticed
that the we are missing a pinconf parameter to set a pin
to output.

Signed-off-by: John Crispin <blogic@openwrt.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

1 files changed, 14 insertions, 0 deletions

diff --git a/drivers/pinctrl/pinctrl-xway.c b/drivers/pinctrl/pinctrl-xway.c
index aa4c8b815c20..b23b8954ae31 100644
--- a/drivers/pinctrl/pinctrl-xway.c
+++ b/drivers/pinctrl/pinctrl-xway.c
@@ -466,6 +466,11 @@ static int xway_pinconf_get(struct pinctrl_dev *pctldev,
                         *config = LTQ_PINCONF_PACK(param, 1);
                 break;
 
+        case LTQ_PINCONF_PARAM_OUTPUT:
+                reg = GPIO_DIR(pin);
+                *config = LTQ_PINCONF_PACK(param,
+                        gpio_getbit(info->membase[0], reg, PORT_PIN(pin)));
+                break;
         default:
                 dev_err(pctldev->dev, "Invalid config param %04x\n", param);
                 return -ENOTSUPP;
@@ -515,6 +520,14 @@ static int xway_pinconf_set(struct pinctrl_dev *pctldev,
                         dev_err(pctldev->dev, "Invalid pull value %d\n", arg);
                 break;
 
+        case LTQ_PINCONF_PARAM_OUTPUT:
+                reg = GPIO_DIR(pin);
+                if (arg == 0)
+                        gpio_clearbit(info->membase[0], reg, PORT_PIN(pin));
+                else
+                        gpio_setbit(info->membase[0], reg, PORT_PIN(pin));
+                break;
+
         default:
                 dev_err(pctldev->dev, "Invalid config param %04x\n", param);
                 return -ENOTSUPP;
@@ -573,6 +586,7 @@ static inline int xway_mux_apply(struct pinctrl_dev *pctrldev,
 static const struct ltq_cfg_param xway_cfg_params[] = {
         {"lantiq,pull",         LTQ_PINCONF_PARAM_PULL},
         {"lantiq,open-drain",   LTQ_PINCONF_PARAM_OPEN_DRAIN},
+        {"lantiq,output",       LTQ_PINCONF_PARAM_OUTPUT},
 };
 
 static struct ltq_pinmux_info xway_info = {