diff options
| -rw-r--r-- | drivers/mux/mmio.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/drivers/mux/mmio.c b/drivers/mux/mmio.c index c4e59d2ed42b..9993ce38a818 100644 --- a/drivers/mux/mmio.c +++ b/drivers/mux/mmio.c @@ -33,6 +33,12 @@ static const struct of_device_id mux_mmio_dt_ids[] = { }; MODULE_DEVICE_TABLE(of, mux_mmio_dt_ids); +static const struct regmap_config mux_mmio_regmap_cfg = { + .reg_bits = 32, + .val_bits = 32, + .reg_stride = 4, +}; + static int mux_mmio_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; @@ -40,6 +46,7 @@ static int mux_mmio_probe(struct platform_device *pdev) struct regmap_field **fields; struct mux_chip *mux_chip; struct regmap *regmap; + void __iomem *base; int num_fields; int ret; int i; @@ -47,7 +54,11 @@ static int mux_mmio_probe(struct platform_device *pdev) if (of_device_is_compatible(np, "mmio-mux")) { regmap = syscon_node_to_regmap(np->parent); } else { - regmap = device_node_to_regmap(np); + base = devm_platform_ioremap_resource(pdev, 0); + if (IS_ERR(base)) + regmap = ERR_PTR(-ENODEV); + else + regmap = regmap_init_mmio(dev, base, &mux_mmio_regmap_cfg); /* Fallback to checking the parent node on "real" errors. */ if (IS_ERR(regmap) && regmap != ERR_PTR(-EPROBE_DEFER)) { regmap = dev_get_regmap(dev->parent, NULL); |