[PATCH 1/3] mux: autoprobe if "idle-states" present in device tree

[Roger Quadros <rogerq@kernel.org>]

Some platforms need the MUX state to be auto initialized at
boot time even if there are no explicit users for the MUX.
In these cases, the MUX device tree has "idle-states" property
which specifies what state the MUX should be initialized to.

So far we were relying on custom u-boot property "u-boot,mux-autoprobe"
to autoprobe such MUXes. This patch causes the MUX to autoprobe
if it has "idle-states" property in device tree.

This should allow us to stop using the custom "u-boot,mux-autoprobe"
property.

Signed-off-by: Roger Quadros <rogerq@kernel.org>
---
 drivers/mux/mux-uclass.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/mux/mux-uclass.c b/drivers/mux/mux-uclass.c
index c98576ceb8..8833888ded 100644
--- a/drivers/mux/mux-uclass.c
+++ b/drivers/mux/mux-uclass.c
@@ -318,7 +318,8 @@ int dm_mux_init(void)
 		return ret;
 	}
 	uclass_foreach_dev(dev, uc) {
-		if (dev_read_bool(dev, "u-boot,mux-autoprobe")) {
+		if (dev_read_bool(dev, "u-boot,mux-autoprobe") ||
+		    dev_read_bool(dev, "idle-states")) {
 			ret = device_probe(dev);
 			if (ret)
 				log_debug("unable to probe device %s\n",
-- 
2.34.1