[PATCH 4/4] mfd: madera: Add supply mapping for MICVDD

[Charles Keepax <ckeepax@opensource.cirrus.com>]

Currently we are relying on the exact match of the regulator name to
find MICVDD, we should add an explicit supply mapping to allow this to
be found more reliably.

Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
---
 drivers/mfd/madera-core.c | 18 +++++++++++++++---
 1 file changed, 15 insertions(+), 3 deletions(-)

diff --git a/drivers/mfd/madera-core.c b/drivers/mfd/madera-core.c
index 1b78c5c844a81..515283e595aa0 100644
--- a/drivers/mfd/madera-core.c
+++ b/drivers/mfd/madera-core.c
@@ -59,7 +59,11 @@ static const struct mfd_cell cs47l35_devs[] = {
 	{ .name = "madera-irq", },
 	{ .name = "madera-micsupp", },
 	{ .name = "madera-gpio", },
-	{ .name = "madera-extcon", },
+	{
+		.name = "madera-extcon",
+		.parent_supplies = cs47l35_supplies,
+		.num_parent_supplies = 1, /* We only need MICVDD */
+	},
 	{
 		.name = "cs47l35-codec",
 		.parent_supplies = cs47l35_supplies,
@@ -83,7 +87,11 @@ static const struct mfd_cell cs47l85_devs[] = {
 	{ .name = "madera-irq", },
 	{ .name = "madera-micsupp" },
 	{ .name = "madera-gpio", },
-	{ .name = "madera-extcon", },
+	{
+		.name = "madera-extcon",
+		.parent_supplies = cs47l85_supplies,
+		.num_parent_supplies = 1, /* We only need MICVDD */
+	},
 	{
 		.name = "cs47l85-codec",
 		.parent_supplies = cs47l85_supplies,
@@ -105,7 +113,11 @@ static const struct mfd_cell cs47l90_devs[] = {
 	{ .name = "madera-irq", },
 	{ .name = "madera-micsupp", },
 	{ .name = "madera-gpio", },
-	{ .name = "madera-extcon", },
+	{
+		.name = "madera-extcon",
+		.parent_supplies = cs47l90_supplies,
+		.num_parent_supplies = 1, /* We only need MICVDD */
+	},
 	{
 		.name = "cs47l90-codec",
 		.parent_supplies = cs47l90_supplies,
-- 
2.11.0