With "reg-mux" compatible the driver no longer expects the parent device to be a syscon type. It uses it's own regmux.
Signed-off-by: Roger Quadros rogerq@kernel.org --- drivers/mux/mmio.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/mux/mmio.c b/drivers/mux/mmio.c index e1125458a62..e06f4462b5a 100644 --- a/drivers/mux/mmio.c +++ b/drivers/mux/mmio.c @@ -31,6 +31,7 @@ static const struct mux_control_ops mux_mmio_ops = {
static const struct udevice_id mmio_mux_of_match[] = { { .compatible = "mmio-mux" }, + { .compatible = "reg-mux" }, { /* sentinel */ }, };
@@ -45,7 +46,11 @@ static int mmio_mux_probe(struct udevice *dev) int ret; int i;
- regmap = syscon_node_to_regmap(dev_ofnode(dev->parent)); + if (ofnode_device_is_compatible(dev_ofnode(dev), "mmio-mux")) + regmap = syscon_node_to_regmap(dev_ofnode(dev->parent)); + else + regmap_init_mem(dev_ofnode(dev), ®map); + if (IS_ERR(regmap)) { ret = PTR_ERR(regmap); dev_err(dev, "failed to get regmap: %d\n", ret);