diff options
Diffstat (limited to 'drivers/pinctrl/pinctrl-nomadik.c')
| -rw-r--r-- | drivers/pinctrl/pinctrl-nomadik.c | 20 |
1 files changed, 14 insertions, 6 deletions
diff --git a/drivers/pinctrl/pinctrl-nomadik.c b/drivers/pinctrl/pinctrl-nomadik.c index 8ef3e85cb011..5767b18ebdff 100644 --- a/drivers/pinctrl/pinctrl-nomadik.c +++ b/drivers/pinctrl/pinctrl-nomadik.c @@ -31,9 +31,8 @@ /* Since we request GPIOs from ourself */ #include <linux/pinctrl/consumer.h> #include <linux/platform_data/pinctrl-nomadik.h> - #include <asm/mach/irq.h> - +#include <mach/irqs.h> #include "pinctrl-nomadik.h" /* @@ -260,6 +259,9 @@ static void nmk_prcm_altcx_set_mode(struct nmk_pinctrl *npct, const struct prcm_gpiocr_altcx_pin_desc *pin_desc; const u16 *gpiocr_regs; + if (!npct->prcm_base) + return; + if (alt_num > PRCM_IDX_GPIOCR_ALTC_MAX) { dev_err(npct->dev, "PRCM GPIOCR: alternate-C%i is invalid\n", alt_num); @@ -674,7 +676,7 @@ int nmk_gpio_set_mode(int gpio, int gpio_mode) } EXPORT_SYMBOL(nmk_gpio_set_mode); -static int nmk_prcm_gpiocr_get_mode(struct pinctrl_dev *pctldev, int gpio) +static int __maybe_unused nmk_prcm_gpiocr_get_mode(struct pinctrl_dev *pctldev, int gpio) { int i; u16 reg; @@ -683,6 +685,9 @@ static int nmk_prcm_gpiocr_get_mode(struct pinctrl_dev *pctldev, int gpio) const struct prcm_gpiocr_altcx_pin_desc *pin_desc; const u16 *gpiocr_regs; + if (!npct->prcm_base) + return NMK_GPIO_ALT_C; + for (i = 0; i < npct->soc->npins_altcx; i++) { if (npct->soc->altcx_pins[i].pin == gpio) break; @@ -1307,7 +1312,7 @@ const struct irq_domain_ops nmk_gpio_irq_simple_ops = { .xlate = irq_domain_xlate_twocell, }; -static int __devinit nmk_gpio_probe(struct platform_device *dev) +static int nmk_gpio_probe(struct platform_device *dev) { struct nmk_gpio_platform_data *pdata = dev->dev.platform_data; struct device_node *np = dev->dev.of_node; @@ -1847,7 +1852,7 @@ static const struct of_device_id nmk_pinctrl_match[] = { {}, }; -static int __devinit nmk_pinctrl_probe(struct platform_device *pdev) +static int nmk_pinctrl_probe(struct platform_device *pdev) { const struct platform_device_id *platid = platform_get_device_id(pdev); struct device_node *np = pdev->dev.of_node; @@ -1888,9 +1893,12 @@ static int __devinit nmk_pinctrl_probe(struct platform_device *pdev) "failed to ioremap PRCM registers\n"); return -ENOMEM; } - } else { + } else if (version == PINCTRL_NMK_STN8815) { dev_info(&pdev->dev, "No PRCM base, assume no ALT-Cx control is available\n"); + } else { + dev_err(&pdev->dev, "missing PRCM base address\n"); + return -EINVAL; } /* |