mfd: twl6040: Add twl6040-gpio child
Add needed platform data structure and code to be able to load
the GPO child of twl6040.
Update the devicetree binding documentation at the same time.
Signed-off-by: Sergio Aguirre <saaguirre@ti.com>
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
diff --git a/drivers/mfd/twl6040-core.c b/drivers/mfd/twl6040-core.c
index 348e1de..3f2a1cf 100644
--- a/drivers/mfd/twl6040-core.c
+++ b/drivers/mfd/twl6040-core.c
@@ -631,6 +631,21 @@
children++;
}
+ /*
+ * Enable the GPO driver in the following cases:
+ * DT booted kernel or legacy boot with valid gpo platform_data
+ */
+ if (!pdata || (pdata && pdata->gpo)) {
+ cell = &twl6040->cells[children];
+ cell->name = "twl6040-gpo";
+
+ if (pdata) {
+ cell->platform_data = pdata->gpo;
+ cell->pdata_size = sizeof(*pdata->gpo);
+ }
+ children++;
+ }
+
ret = mfd_add_devices(&client->dev, -1, twl6040->cells, children,
NULL, 0, NULL);
if (ret)
