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

   1 From f9441b4f98b5b28f3d2cbebd0a70b227c35451d9 Mon Sep 17 00:00:00 2001
   2 From: John Crispin <blogic@openwrt.org>
   3 Date: Wed, 30 Jan 2013 18:33:39 +0100
   4 Subject: [PATCH 08/40] PINCTRL: lantiq: add output pinconf parameter
   5
   6 While converting the boards inside OpenWrt to OF I noticed that the we are
   7 missing a pinconf parameter to set a pin to output.
   8
   9 Signed-off-by: John Crispin <blogic@openwrt.org>
  10 ---
  11  drivers/pinctrl/pinctrl-lantiq.h |    1 +
  12  drivers/pinctrl/pinctrl-xway.c   |   14 ++++++++++++++
  13  2 files changed, 15 insertions(+)
  14
  15 diff --git a/drivers/pinctrl/pinctrl-lantiq.h b/drivers/pinctrl/pinctrl-lantiq.h
  16 index 4419d32..6d07f02 100644
  17 --- a/drivers/pinctrl/pinctrl-lantiq.h
  18 +++ b/drivers/pinctrl/pinctrl-lantiq.h
  19 @@ -34,6 +34,7 @@ enum ltq_pinconf_param {
  20         LTQ_PINCONF_PARAM_OPEN_DRAIN,
  21         LTQ_PINCONF_PARAM_DRIVE_CURRENT,
  22         LTQ_PINCONF_PARAM_SLEW_RATE,
  23 +       LTQ_PINCONF_PARAM_OUTPUT,
  24  };
  25
  26  struct ltq_cfg_param {
  27 diff --git a/drivers/pinctrl/pinctrl-xway.c b/drivers/pinctrl/pinctrl-xway.c
  28 index aa4c8b8..b23b895 100644
  29 --- a/drivers/pinctrl/pinctrl-xway.c
  30 +++ b/drivers/pinctrl/pinctrl-xway.c
  31 @@ -466,6 +466,11 @@ static int xway_pinconf_get(struct pinctrl_dev *pctldev,
  32                         *config = LTQ_PINCONF_PACK(param, 1);
  33                 break;
  34
  35 +       case LTQ_PINCONF_PARAM_OUTPUT:
  36 +               reg = GPIO_DIR(pin);
  37 +               *config = LTQ_PINCONF_PACK(param,
  38 +                       gpio_getbit(info->membase[0], reg, PORT_PIN(pin)));
  39 +               break;
  40         default:
  41                 dev_err(pctldev->dev, "Invalid config param %04x\n", param);
  42                 return -ENOTSUPP;
  43 @@ -515,6 +520,14 @@ static int xway_pinconf_set(struct pinctrl_dev *pctldev,
  44                         dev_err(pctldev->dev, "Invalid pull value %d\n", arg);
  45                 break;
  46
  47 +       case LTQ_PINCONF_PARAM_OUTPUT:
  48 +               reg = GPIO_DIR(pin);
  49 +               if (arg == 0)
  50 +                       gpio_clearbit(info->membase[0], reg, PORT_PIN(pin));
  51 +               else
  52 +                       gpio_setbit(info->membase[0], reg, PORT_PIN(pin));
  53 +               break;
  54 +
  55         default:
  56                 dev_err(pctldev->dev, "Invalid config param %04x\n", param);
  57                 return -ENOTSUPP;
  58 @@ -573,6 +586,7 @@ static inline int xway_mux_apply(struct pinctrl_dev *pctrldev,
  59  static const struct ltq_cfg_param xway_cfg_params[] = {
  60         {"lantiq,pull",         LTQ_PINCONF_PARAM_PULL},
  61         {"lantiq,open-drain",   LTQ_PINCONF_PARAM_OPEN_DRAIN},
  62 +       {"lantiq,output",       LTQ_PINCONF_PARAM_OUTPUT},
  63  };
  64
  65  static struct ltq_pinmux_info xway_info = {
  66 --
  67 1.7.10.4
  68