of: property: Add fw_devlink support for msi-parent

This allows fw_devlink to create device links between consumers of
a MSI and the supplier of the MSI.

Signed-off-by: Anup Patel <[email protected]>
Acked-by: Rob Herring <[email protected]>
Reviewed-by: Saravana Kannan <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Palmer Dabbelt <[email protected]>

Author: avpatel

drivers/of/property.c

@@ -1267,6 +1267,7 @@ DEFINE_SIMPLE_PROP(resets, "resets", "#reset-cells")
 DEFINE_SIMPLE_PROP(leds, "leds", NULL)
 DEFINE_SIMPLE_PROP(backlight, "backlight", NULL)
 DEFINE_SIMPLE_PROP(panel, "panel", NULL)
+DEFINE_SIMPLE_PROP(msi_parent, "msi-parent", "#msi-cells")
 DEFINE_SUFFIX_PROP(regulators, "-supply", NULL)
 DEFINE_SUFFIX_PROP(gpio, "-gpio", "#gpio-cells")
 
@@ -1356,6 +1357,7 @@ static const struct supplier_bindings of_supplier_bindings[] = {
 	{ .parse_prop = parse_leds, },
 	{ .parse_prop = parse_backlight, },
 	{ .parse_prop = parse_panel, },
+	{ .parse_prop = parse_msi_parent, },
 	{ .parse_prop = parse_gpio_compat, },
 	{ .parse_prop = parse_interrupts, },
 	{ .parse_prop = parse_regulators, },