diff options
| -rw-r--r-- | drivers/pinctrl/pinctrl-amd.c | 25 | ||||
| -rw-r--r-- | drivers/pinctrl/pinctrl-amd.h | 1 |
2 files changed, 26 insertions, 0 deletions
diff --git a/drivers/pinctrl/pinctrl-amd.c b/drivers/pinctrl/pinctrl-amd.c index 0645c2c24f50..a1d21fb78028 100644 --- a/drivers/pinctrl/pinctrl-amd.c +++ b/drivers/pinctrl/pinctrl-amd.c @@ -963,6 +963,30 @@ static struct pinctrl_desc amd_pinctrl_desc = { .owner = THIS_MODULE, }; +static void amd_get_iomux_res(struct amd_gpio *gpio_dev) +{ + struct pinctrl_desc *desc = &amd_pinctrl_desc; + struct device *dev = &gpio_dev->pdev->dev; + int index; + + index = device_property_match_string(dev, "pinctrl-resource-names", "iomux"); + if (index < 0) { + dev_warn(dev, "failed to get iomux index\n"); + goto out_no_pinmux; + } + + gpio_dev->iomux_base = devm_platform_ioremap_resource(gpio_dev->pdev, index); + if (IS_ERR(gpio_dev->iomux_base)) { + dev_warn(dev, "Failed to get iomux %d io resource\n", index); + goto out_no_pinmux; + } + + return; + +out_no_pinmux: + desc->pmxops = NULL; +} + static int amd_gpio_probe(struct platform_device *pdev) { int ret = 0; @@ -1020,6 +1044,7 @@ static int amd_gpio_probe(struct platform_device *pdev) gpio_dev->ngroups = ARRAY_SIZE(kerncz_groups); amd_pinctrl_desc.name = dev_name(&pdev->dev); + amd_get_iomux_res(gpio_dev); gpio_dev->pctrl = devm_pinctrl_register(&pdev->dev, &amd_pinctrl_desc, gpio_dev); if (IS_ERR(gpio_dev->pctrl)) { diff --git a/drivers/pinctrl/pinctrl-amd.h b/drivers/pinctrl/pinctrl-amd.h index e2523738fe51..76538792ac78 100644 --- a/drivers/pinctrl/pinctrl-amd.h +++ b/drivers/pinctrl/pinctrl-amd.h @@ -83,6 +83,7 @@ struct amd_function { struct amd_gpio { raw_spinlock_t lock; void __iomem *base; + void __iomem *iomux_base; const struct pingroup *groups; u32 ngroups; |