openwrt/target/linux/lantiq/patches-3.8/0008-PINCTRL-lantiq-add-output-pinconf-parameter.patch

From f9441b4f98b5b28f3d2cbebd0a70b227c35451d9 Mon Sep 17 00:00:00 2001
From: John Crispin <blogic@openwrt.org>
Date: Wed, 30 Jan 2013 18:33:39 +0100
Subject: [PATCH 08/40] 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>
---
 drivers/pinctrl/pinctrl-lantiq.h |    1 +
 drivers/pinctrl/pinctrl-xway.c   |   14 ++++++++++++++
 2 files changed, 15 insertions(+)

--- a/drivers/pinctrl/pinctrl-lantiq.h
+++ b/drivers/pinctrl/pinctrl-lantiq.h
@@ -34,6 +34,7 @@ enum ltq_pinconf_param {
 	LTQ_PINCONF_PARAM_OPEN_DRAIN,
 	LTQ_PINCONF_PARAM_DRIVE_CURRENT,
 	LTQ_PINCONF_PARAM_SLEW_RATE,
+	LTQ_PINCONF_PARAM_OUTPUT,
 };
 
 struct ltq_cfg_param {
--- a/drivers/pinctrl/pinctrl-xway.c
+++ b/drivers/pinctrl/pinctrl-xway.c
@@ -466,6 +466,11 @@ static int xway_pinconf_get(struct pinct
 			*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 pinct
 			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
 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 = {