[PATCH v4 3/3] mfd: cros_ec_dev: Register cros_usbpd-charger driver as a subdevice.

Enric Balletbo i Serra
2018-05-02T15:44:18Z

Check whether this EC instance has USBPD host command support and
instatiate the cros_usbpd-charger driver as a subdevice in such case.

Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
---

Changes in v4: None
Changes in v3: None
Changes in v2:
- [3/3] Use ARRAY_SIZE instead of hardcoded 1.

drivers/mfd/cros_ec_dev.c | 16 ++++++++++++++++
1 file changed, 16 insertions(+)

diff --git a/drivers/mfd/cros_ec_dev.c b/drivers/mfd/cros_ec_dev.c
index 1d6dc5c7a19d..d06870da3a2e 100644
--- a/drivers/mfd/cros_ec_dev.c
+++ b/drivers/mfd/cros_ec_dev.c
@@ -387,6 +387,10 @@ static const struct mfd_cell cros_ec_rtc_cells[] = {
{ .name = "cros-ec-rtc" }
};

+static const struct mfd_cell cros_usbpd_charger_cells[] = {
+ { .name = "cros-usbpd-charger" }
+};
+
static int ec_device_probe(struct platform_device *pdev)
{
int retval = -ENOMEM;
@@ -438,6 +442,18 @@ static int ec_device_probe(struct platform_device *pdev)
retval);
}

+ /* Check whether this EC instance has the PD charge manager */
+ if (cros_ec_check_features(ec, EC_FEATURE_USB_PD)) {
+ retval = mfd_add_devices(ec->dev, PLATFORM_DEVID_AUTO,
+ cros_usbpd_charger_cells,
+ ARRAY_SIZE(cros_usbpd_charger_cells),
+ NULL, 0, NULL);
+ if (retval)
+ dev_err(ec->dev,
+ "failed to add cros-usbpd-charger device: %d\n",
+ retval);
+ }
+
/* Take control of the lightbar from the EC. */
lb_manual_suspend_ctrl(ec, 1);

--
2.17.0