From: Roger Quadros <rogerq@kernel.org>
Date: Wed, 18 Sep 2024 13:49:21 +0000 (+0300)
Subject: mux: mmio: Support "reg-mux" compatible
X-Git-Url: http://git.dujemihanovic.xyz/img/%22http:/www.sics.se/static/gitweb.css?a=commitdiff_plain;h=8e7a7ffec6711069e2c0032574d93f75cf0ab454;p=u-boot.git

mux: mmio: Support "reg-mux" compatible

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>
---

diff --git a/drivers/mux/mmio.c b/drivers/mux/mmio.c
index e1125458a6..e06f4462b5 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), &regmap);
+
 	if (IS_ERR(regmap)) {
 		ret = PTR_ERR(regmap);
 		dev_err(dev, "failed to get regmap: %d\n", ret);