diff options
| author | Axel Lin <axel.lin@ingics.com> | 2013-12-13 21:35:55 +0800 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2013-12-20 10:13:23 +0100 |
| commit | e476e77fe0fc82ba0c240ca5d7e9f81a742fc62e (patch) | |
| tree | 8fbf277ff56cc65b6dfc0571b82942e93af09538 /drivers/pinctrl | |
| parent | 37ef1d9243759ca69032be2a68d5d1a87a295fd4 (diff) | |
| download | op-kernel-dev-e476e77fe0fc82ba0c240ca5d7e9f81a742fc62e.zip op-kernel-dev-e476e77fe0fc82ba0c240ca5d7e9f81a742fc62e.tar.gz | |
pinctrl: msm: Fix set gpio setting
Set g->out_bit bit for gpio output high, clear g->out_bit bit for gpio output
low.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/pinctrl')
| -rw-r--r-- | drivers/pinctrl/pinctrl-msm.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/drivers/pinctrl/pinctrl-msm.c b/drivers/pinctrl/pinctrl-msm.c index 011e263..ef2bf31 100644 --- a/drivers/pinctrl/pinctrl-msm.c +++ b/drivers/pinctrl/pinctrl-msm.c @@ -429,7 +429,12 @@ static int msm_gpio_direction_output(struct gpio_chip *chip, unsigned offset, in spin_lock_irqsave(&pctrl->lock, flags); - writel(value ? BIT(g->out_bit) : 0, pctrl->regs + g->io_reg); + val = readl(pctrl->regs + g->io_reg); + if (value) + val |= BIT(g->out_bit); + else + val &= ~BIT(g->out_bit); + writel(val, pctrl->regs + g->io_reg); val = readl(pctrl->regs + g->ctl_reg); val |= BIT(g->oe_bit); @@ -468,7 +473,10 @@ static void msm_gpio_set(struct gpio_chip *chip, unsigned offset, int value) spin_lock_irqsave(&pctrl->lock, flags); val = readl(pctrl->regs + g->io_reg); - val |= BIT(g->out_bit); + if (value) + val |= BIT(g->out_bit); + else + val &= ~BIT(g->out_bit); writel(val, pctrl->regs + g->io_reg); spin_unlock_irqrestore(&pctrl->lock, flags); |
