Add support of sub-functions disabling. It allows one to define
an stmpe sub-function device in devicetree, but keep it disabled.
Signed-off-by: Oleksandr Suvorov <oleksandr.suvorov@xxxxxxxxxxx>
---
drivers/mfd/stmpe.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/mfd/stmpe.c b/drivers/mfd/stmpe.c
index 90f3292230c9..2182607b75f6 100644
--- a/drivers/mfd/stmpe.c
+++ b/drivers/mfd/stmpe.c
@@ -1358,6 +1358,9 @@ static void stmpe_of_probe(struct stmpe_platform_data *pdata,
pdata->autosleep = (pdata->autosleep_timeout) ? true : false;
for_each_child_of_node(np, child) {
+ /* skip disabled sub-function */
+ if (!of_device_is_available(child))
+ continue;
if (of_node_name_eq(child, "stmpe_gpio")) {
pdata->blocks |= STMPE_BLOCK_GPIO;
} else if (of_node_name_eq(child, "stmpe_keypad")) {
--
2.29.2
