ipq806x: Add support for IPQ806x chip family

[openwrt.git] / target / linux / ipq806x / patches / 0033-pinctrl-msm-Support-output-high-low-configuration.patch

diff --git a/target/linux/ipq806x/patches/0033-pinctrl-msm-Support-output-high-low-configuration.patch b/target/linux/ipq806x/patches/0033-pinctrl-msm-Support-output-high-low-configuration.patch
new file mode 100644 (file)
index 0000000..18c72cc
--- /dev/null
+++ b/target/linux/ipq806x/patches/0033-pinctrl-msm-Support-output-high-low-configuration.patch
@@ -0,0 +1,69 @@
+From 469f83e0ed374250be5fd6202ac535276a752fa8 Mon Sep 17 00:00:00 2001
+From: Bjorn Andersson <bjorn@kryo.se>
+Date: Tue, 4 Feb 2014 19:55:31 -0800
+Subject: [PATCH 033/182] pinctrl-msm: Support output-{high,low} configuration
+
+Add support for configuring pins as output with value as from the
+pinconf-generic interface.
+
+Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
+Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
+---
+ drivers/pinctrl/pinctrl-msm.c |   27 +++++++++++++++++++++++++++
+ 1 file changed, 27 insertions(+)
+
+diff --git a/drivers/pinctrl/pinctrl-msm.c b/drivers/pinctrl/pinctrl-msm.c
+index 91de8bc..19d2feb 100644
+--- a/drivers/pinctrl/pinctrl-msm.c
++++ b/drivers/pinctrl/pinctrl-msm.c
+@@ -214,6 +214,11 @@ static int msm_config_reg(struct msm_pinctrl *pctrl,
+               *bit = g->drv_bit;
+               *mask = 7;
+               break;
++      case PIN_CONFIG_OUTPUT:
++              *reg = g->ctl_reg;
++              *bit = g->oe_bit;
++              *mask = 1;
++              break;
+       default:
+               dev_err(pctrl->dev, "Invalid config param %04x\n", param);
+               return -ENOTSUPP;
+@@ -282,6 +287,14 @@ static int msm_config_group_get(struct pinctrl_dev *pctldev,
+       case PIN_CONFIG_DRIVE_STRENGTH:
+               arg = msm_regval_to_drive(arg);
+               break;
++      case PIN_CONFIG_OUTPUT:
++              /* Pin is not output */
++              if (!arg)
++                      return -EINVAL;
++
++              val = readl(pctrl->regs + g->io_reg);
++              arg = !!(val & BIT(g->in_bit));
++              break;
+       default:
+               dev_err(pctrl->dev, "Unsupported config parameter: %x\n",
+                       param);
+@@ -337,6 +350,20 @@ static int msm_config_group_set(struct pinctrl_dev *pctldev,
+                       else
+                               arg = (arg / 2) - 1;
+                       break;
++              case PIN_CONFIG_OUTPUT:
++                      /* set output value */
++                      spin_lock_irqsave(&pctrl->lock, flags);
++                      val = readl(pctrl->regs + g->io_reg);
++                      if (arg)
++                              val |= BIT(g->out_bit);
++                      else
++                              val &= ~BIT(g->out_bit);
++                      writel(val, pctrl->regs + g->io_reg);
++                      spin_unlock_irqrestore(&pctrl->lock, flags);
++
++                      /* enable output */
++                      arg = 1;
++                      break;
+               default:
+                       dev_err(pctrl->dev, "Unsupported config parameter: %x\n",
+                               param);
+-- 
+1.7.10.4
+