diff options
author | Bjorn Andersson <bjorn.andersson@sonymobile.com> | 2013-12-15 07:01:52 (GMT) |
---|---|---|
committer | Linus Walleij <linus.walleij@linaro.org> | 2013-12-16 09:31:37 (GMT) |
commit | f393e489c79d55dcc8e72eed0fabcb061e6b0090 (patch) | |
tree | 0957f8c9306e7e7a6886e7a216decf0642c84ecb | |
parent | 1f2b239815996a93bd54561bb1b9d8460e114ff1 (diff) | |
download | linux-f393e489c79d55dcc8e72eed0fabcb061e6b0090.tar.xz |
pinctrl-msm: Tidy up error handling
Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
-rw-r--r-- | drivers/pinctrl/pinctrl-msm.c | 76 |
1 files changed, 26 insertions, 50 deletions
diff --git a/drivers/pinctrl/pinctrl-msm.c b/drivers/pinctrl/pinctrl-msm.c index 322bc0a..c1a3053 100644 --- a/drivers/pinctrl/pinctrl-msm.c +++ b/drivers/pinctrl/pinctrl-msm.c @@ -57,7 +57,7 @@ struct msm_pinctrl { struct pinctrl_dev *pctrl; struct irq_domain *domain; struct gpio_chip chip; - unsigned irq; + int irq; spinlock_t lock; @@ -201,7 +201,7 @@ static const struct pinmux_ops msm_pinmux_ops = { static int msm_config_reg(struct msm_pinctrl *pctrl, const struct msm_pingroup *g, unsigned param, - unsigned *reg, + s16 *reg, unsigned *mask, unsigned *bit) { @@ -272,7 +272,7 @@ static int msm_config_group_get(struct pinctrl_dev *pctldev, unsigned mask; unsigned arg; unsigned bit; - unsigned reg; + s16 reg; int ret; u32 val; @@ -322,7 +322,7 @@ static int msm_config_group_set(struct pinctrl_dev *pctldev, unsigned mask; unsigned arg; unsigned bit; - unsigned reg; + s16 reg; int ret; u32 val; int i; @@ -350,7 +350,7 @@ static int msm_config_group_set(struct pinctrl_dev *pctldev, break; case PIN_CONFIG_DRIVE_STRENGTH: /* Check for invalid values */ - if (arg > ARRAY_SIZE(msm_drive_to_regval)) + if (arg >= ARRAY_SIZE(msm_drive_to_regval)) arg = -1; else arg = msm_drive_to_regval[arg]; @@ -399,12 +399,8 @@ static int msm_gpio_direction_input(struct gpio_chip *chip, unsigned offset) unsigned long flags; u32 val; - if (WARN_ON(offset >= pctrl->soc->ngroups)) - return -EINVAL; - g = &pctrl->soc->groups[offset]; - - if (WARN_ON(g->oe_bit < 0)) + if (WARN_ON(g->io_reg < 0)) return -EINVAL; spin_lock_irqsave(&pctrl->lock, flags); @@ -425,12 +421,8 @@ static int msm_gpio_direction_output(struct gpio_chip *chip, unsigned offset, in unsigned long flags; u32 val; - if (WARN_ON(offset >= pctrl->soc->ngroups)) - return -EINVAL; - g = &pctrl->soc->groups[offset]; - - if (WARN_ON(g->oe_bit < 0)) + if (WARN_ON(g->io_reg < 0)) return -EINVAL; spin_lock_irqsave(&pctrl->lock, flags); @@ -452,10 +444,9 @@ static int msm_gpio_get(struct gpio_chip *chip, unsigned offset) struct msm_pinctrl *pctrl = container_of(chip, struct msm_pinctrl, chip); u32 val; - if (WARN_ON(offset >= pctrl->soc->ngroups)) - return -EINVAL; - g = &pctrl->soc->groups[offset]; + if (WARN_ON(g->io_reg < 0)) + return -EINVAL; val = readl(pctrl->regs + g->io_reg); return !!(val & BIT(g->in_bit)); @@ -468,10 +459,9 @@ static void msm_gpio_set(struct gpio_chip *chip, unsigned offset, int value) unsigned long flags; u32 val; - if (WARN_ON(offset >= pctrl->soc->ngroups)) - return; - g = &pctrl->soc->groups[offset]; + if (WARN_ON(g->io_reg < 0)) + return; spin_lock_irqsave(&pctrl->lock, flags); @@ -616,13 +606,9 @@ static void msm_gpio_irq_mask(struct irq_data *d) u32 val; pctrl = irq_data_get_irq_chip_data(d); - if (!pctrl) - return; - - if (WARN_ON(d->hwirq >= pctrl->soc->ngroups)) - return; - g = &pctrl->soc->groups[d->hwirq]; + if (WARN_ON(g->intr_cfg_reg < 0)) + return; spin_lock_irqsave(&pctrl->lock, flags); @@ -643,13 +629,9 @@ static void msm_gpio_irq_unmask(struct irq_data *d) u32 val; pctrl = irq_data_get_irq_chip_data(d); - if (!pctrl) - return; - - if (WARN_ON(d->hwirq >= pctrl->soc->ngroups)) - return; - g = &pctrl->soc->groups[d->hwirq]; + if (WARN_ON(g->intr_status_reg < 0)) + return; spin_lock_irqsave(&pctrl->lock, flags); @@ -674,13 +656,9 @@ static void msm_gpio_irq_ack(struct irq_data *d) u32 val; pctrl = irq_data_get_irq_chip_data(d); - if (!pctrl) - return; - - if (WARN_ON(d->hwirq >= pctrl->soc->ngroups)) - return; - g = &pctrl->soc->groups[d->hwirq]; + if (WARN_ON(g->intr_status_reg < 0)) + return; spin_lock_irqsave(&pctrl->lock, flags); @@ -704,13 +682,9 @@ static int msm_gpio_irq_set_type(struct irq_data *d, unsigned int type) u32 val; pctrl = irq_data_get_irq_chip_data(d); - if (!pctrl) - return -EINVAL; - - if (WARN_ON(d->hwirq >= pctrl->soc->ngroups)) - return -EINVAL; - g = &pctrl->soc->groups[d->hwirq]; + if (WARN_ON(g->intr_cfg_reg < 0)) + return -EINVAL; spin_lock_irqsave(&pctrl->lock, flags); @@ -802,9 +776,6 @@ static int msm_gpio_irq_set_wake(struct irq_data *d, unsigned int on) unsigned ngpio; pctrl = irq_data_get_irq_chip_data(d); - if (!pctrl) - return -EINVAL; - ngpio = pctrl->chip.ngpio; spin_lock_irqsave(&pctrl->lock, flags); @@ -983,7 +954,7 @@ int msm_pinctrl_probe(struct platform_device *pdev, if (IS_ERR(pctrl->regs)) return PTR_ERR(pctrl->regs); - pctrl->irq = irq_of_parse_and_map(pdev->dev.of_node, 0); + pctrl->irq = platform_get_irq(pdev, 0); if (pctrl->irq < 0) { dev_err(&pdev->dev, "No interrupt defined for msmgpio\n"); return pctrl->irq; @@ -1017,9 +988,14 @@ int msm_pinctrl_remove(struct platform_device *pdev) struct msm_pinctrl *pctrl = platform_get_drvdata(pdev); int ret; + ret = gpiochip_remove(&pctrl->chip); + if (ret) { + dev_err(&pdev->dev, "Failed to remove gpiochip\n"); + return ret; + } + irq_set_chained_handler(pctrl->irq, NULL); irq_domain_remove(pctrl->domain); - ret = gpiochip_remove(&pctrl->chip); pinctrl_unregister(pctrl->pctrl); return 0; |