diff options
Diffstat (limited to 'drivers/pinctrl/bcm/pinctrl-ns.c')
| -rw-r--r-- | drivers/pinctrl/bcm/pinctrl-ns.c | 29 |
1 files changed, 19 insertions, 10 deletions
diff --git a/drivers/pinctrl/bcm/pinctrl-ns.c b/drivers/pinctrl/bcm/pinctrl-ns.c index d7f8175d2c1c..e79690bd8b85 100644 --- a/drivers/pinctrl/bcm/pinctrl-ns.c +++ b/drivers/pinctrl/bcm/pinctrl-ns.c @@ -5,6 +5,7 @@ #include <linux/err.h> #include <linux/io.h> +#include <linux/mfd/syscon.h> #include <linux/module.h> #include <linux/of.h> #include <linux/of_device.h> @@ -12,6 +13,7 @@ #include <linux/pinctrl/pinctrl.h> #include <linux/pinctrl/pinmux.h> #include <linux/platform_device.h> +#include <linux/regmap.h> #include <linux/slab.h> #define FLAG_BCM4708 BIT(1) @@ -22,7 +24,8 @@ struct ns_pinctrl { struct device *dev; unsigned int chipset_flag; struct pinctrl_dev *pctldev; - void __iomem *base; + struct regmap *regmap; + u32 offset; struct pinctrl_desc pctldesc; struct ns_pinctrl_group *groups; @@ -229,9 +232,9 @@ static int ns_pinctrl_set_mux(struct pinctrl_dev *pctrl_dev, unset |= BIT(pin_number); } - tmp = readl(ns_pinctrl->base); + regmap_read(ns_pinctrl->regmap, ns_pinctrl->offset, &tmp); tmp &= ~unset; - writel(tmp, ns_pinctrl->base); + regmap_write(ns_pinctrl->regmap, ns_pinctrl->offset, tmp); return 0; } @@ -263,13 +266,13 @@ static const struct of_device_id ns_pinctrl_of_match_table[] = { static int ns_pinctrl_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; + struct device_node *np = dev->of_node; const struct of_device_id *of_id; struct ns_pinctrl *ns_pinctrl; struct pinctrl_desc *pctldesc; struct pinctrl_pin_desc *pin; struct ns_pinctrl_group *group; struct ns_pinctrl_function *function; - struct resource *res; int i; ns_pinctrl = devm_kzalloc(dev, sizeof(*ns_pinctrl), GFP_KERNEL); @@ -287,12 +290,18 @@ static int ns_pinctrl_probe(struct platform_device *pdev) return -EINVAL; ns_pinctrl->chipset_flag = (uintptr_t)of_id->data; - res = platform_get_resource_byname(pdev, IORESOURCE_MEM, - "cru_gpio_control"); - ns_pinctrl->base = devm_ioremap_resource(dev, res); - if (IS_ERR(ns_pinctrl->base)) { - dev_err(dev, "Failed to map pinctrl regs\n"); - return PTR_ERR(ns_pinctrl->base); + ns_pinctrl->regmap = syscon_node_to_regmap(of_get_parent(np)); + if (IS_ERR(ns_pinctrl->regmap)) { + int err = PTR_ERR(ns_pinctrl->regmap); + + dev_err(dev, "Failed to map pinctrl regs: %d\n", err); + + return err; + } + + if (of_property_read_u32(np, "offset", &ns_pinctrl->offset)) { + dev_err(dev, "Failed to get register offset\n"); + return -ENOENT; } memcpy(pctldesc, &ns_pinctrl_desc, sizeof(*pctldesc)); |