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[v6,8/8] mfd: cros_ec: Don't load charger with UCSI

Message ID 20240910101527.603452-9-ukaszb@chromium.org
State New
Headers show
Series [v6,1/8] platform/chrome: Update ChromeOS EC header for UCSI | expand

Commit Message

Łukasz Bartosik Sept. 10, 2024, 10:15 a.m. UTC 
From: Abhishek Pandit-Subedi <abhishekpandit@chromium.org>

When UCSI is enabled, don't load cros_usbpd_charger and cros_usbpd_logger
drivers. Charger functionality is provided by the UCSI driver already and
logging will need to be added.

Signed-off-by: Abhishek Pandit-Subedi <abhishekpandit@chromium.org>
Signed-off-by: Łukasz Bartosik <ukaszb@chromium.org>
---
 drivers/mfd/cros_ec_dev.c | 20 +++++++++++++++-----
 1 file changed, 15 insertions(+), 5 deletions(-)
diff mbox series

Patch

diff --git a/drivers/mfd/cros_ec_dev.c b/drivers/mfd/cros_ec_dev.c
index d5d63df7fcbd..bc083c7b21de 100644
--- a/drivers/mfd/cros_ec_dev.c
+++ b/drivers/mfd/cros_ec_dev.c
@@ -133,11 +133,6 @@  static const struct cros_feature_to_cells cros_subdevices[] = {
 		.mfd_cells	= cros_ec_ucsi_cells,
 		.num_cells	= ARRAY_SIZE(cros_ec_ucsi_cells),
 	},
-	{
-		.id		= EC_FEATURE_USB_PD,
-		.mfd_cells	= cros_usbpd_charger_cells,
-		.num_cells	= ARRAY_SIZE(cros_usbpd_charger_cells),
-	},
 	{
 		.id		= EC_FEATURE_HANG_DETECT,
 		.mfd_cells	= cros_ec_wdt_cells,
@@ -261,6 +256,21 @@  static int ec_device_probe(struct platform_device *pdev)
 		}
 	}
 
+	/*
+	 * UCSI provides power supply information so we don't need to separately
+	 * load the cros_usbpd_charger driver.
+	 */
+	if (cros_ec_check_features(ec, EC_FEATURE_USB_PD) &&
+	    !cros_ec_check_features(ec, EC_FEATURE_UCSI_PPM)) {
+		retval = mfd_add_hotplug_devices(ec->dev,
+						 cros_usbpd_charger_cells,
+						 ARRAY_SIZE(cros_usbpd_charger_cells));
+
+		if (retval)
+			dev_warn(ec->dev, "failed to add usbpd-charger: %d\n",
+				 retval);
+	}
+
 	/*
 	 * Lightbar is a special case. Newer devices support autodetection,
 	 * but older ones do not.