1 From 469f83e0ed374250be5fd6202ac535276a752fa8 Mon Sep 17 00:00:00 2001
2 From: Bjorn Andersson <bjorn@kryo.se>
3 Date: Tue, 4 Feb 2014 19:55:31 -0800
4 Subject: [PATCH 033/182] pinctrl-msm: Support output-{high,low} configuration
6 Add support for configuring pins as output with value as from the
7 pinconf-generic interface.
9 Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
10 Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
12 drivers/pinctrl/pinctrl-msm.c | 27 +++++++++++++++++++++++++++
13 1 file changed, 27 insertions(+)
15 diff --git a/drivers/pinctrl/pinctrl-msm.c b/drivers/pinctrl/pinctrl-msm.c
16 index 91de8bc..19d2feb 100644
17 --- a/drivers/pinctrl/pinctrl-msm.c
18 +++ b/drivers/pinctrl/pinctrl-msm.c
19 @@ -214,6 +214,11 @@ static int msm_config_reg(struct msm_pinctrl *pctrl,
23 + case PIN_CONFIG_OUTPUT:
29 dev_err(pctrl->dev, "Invalid config param %04x\n", param);
31 @@ -282,6 +287,14 @@ static int msm_config_group_get(struct pinctrl_dev *pctldev,
32 case PIN_CONFIG_DRIVE_STRENGTH:
33 arg = msm_regval_to_drive(arg);
35 + case PIN_CONFIG_OUTPUT:
36 + /* Pin is not output */
40 + val = readl(pctrl->regs + g->io_reg);
41 + arg = !!(val & BIT(g->in_bit));
44 dev_err(pctrl->dev, "Unsupported config parameter: %x\n",
46 @@ -337,6 +350,20 @@ static int msm_config_group_set(struct pinctrl_dev *pctldev,
50 + case PIN_CONFIG_OUTPUT:
51 + /* set output value */
52 + spin_lock_irqsave(&pctrl->lock, flags);
53 + val = readl(pctrl->regs + g->io_reg);
55 + val |= BIT(g->out_bit);
57 + val &= ~BIT(g->out_bit);
58 + writel(val, pctrl->regs + g->io_reg);
59 + spin_unlock_irqrestore(&pctrl->lock, flags);
65 dev_err(pctrl->dev, "Unsupported config parameter: %x\n",