platform/x86: x86-android-tablets: convert Yoga Tab2 fast charger to GPIO references

Now that gpiolib supports software nodes to describe GPIOs, switch the
driver away from using GPIO lookup tables for the fast charger device
to using PROPERTY_ENTRY_GPIO().

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Tested-by: Hans de Goede <hansg@kernel.org>
Reviewed-by: Hans de Goede <hansg@kernel.org>
Reviewed-by: Andy Shevchenko <andy@kernel.org>
Signed-off-by: Hans de Goede <hansg@kernel.org>
Link: https://patch.msgid.link/20250920200713.20193-10-hansg@kernel.org
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

Author: dtor

drivers/platform/x86/lenovo/yoga-tab2-pro-1380-fastcharger.c

@@ -255,6 +255,11 @@ static int yt2_1380_fc_pdev_probe(struct platform_device *pdev)
 	if (!serdev)
 		return -ENOMEM;
 
+	/* Propagate pdev-fwnode set by x86-android-tablets to serdev */
+	device_set_node(&serdev->dev, dev_fwnode(&pdev->dev));
+	/* The fwnode is a managed node, so it will be auto-put on serdev_device_put() */
+	fwnode_handle_get(dev_fwnode(&serdev->dev));
+
 	ret = serdev_device_add(serdev);
 	if (ret) {
 		serdev_device_put(serdev);

drivers/platform/x86/x86-android-tablets/lenovo.c

@@ -741,11 +741,18 @@ static const struct x86_i2c_client_info lenovo_yoga_tab2_1380_i2c_clients[] __in
 	}
 };
 
+static const struct property_entry lenovo_yoga_tab2_1380_fc_props[] __initconst = {
+	PROPERTY_ENTRY_GPIO("uart3_txd-gpios", &baytrail_gpiochip_nodes[0], 57, GPIO_ACTIVE_HIGH),
+	PROPERTY_ENTRY_GPIO("uart3_rxd-gpios", &baytrail_gpiochip_nodes[0], 61, GPIO_ACTIVE_HIGH),
+	{ }
+};
+
 static const struct platform_device_info lenovo_yoga_tab2_1380_pdevs[] __initconst = {
 	{
 		/* For the Tablet 2 Pro 1380's custom fast charging driver */
 		.name = "lenovo-yoga-tab2-pro-1380-fastcharger",
 		.id = PLATFORM_DEVID_NONE,
+		.properties = lenovo_yoga_tab2_1380_fc_props,
 	},
 };
 
@@ -775,30 +782,16 @@ static int __init lenovo_yoga_tab2_1380_init(struct device *dev)
 	return 0;
 }
 
-static struct gpiod_lookup_table lenovo_yoga_tab2_1380_fc_gpios = {
-	.dev_id = "serial0-0",
-	.table = {
-		GPIO_LOOKUP("INT33FC:00", 57, "uart3_txd", GPIO_ACTIVE_HIGH),
-		GPIO_LOOKUP("INT33FC:00", 61, "uart3_rxd", GPIO_ACTIVE_HIGH),
-		{ }
-	},
-};
-
-static struct gpiod_lookup_table * const lenovo_yoga_tab2_1380_gpios[] = {
-	&lenovo_yoga_tab2_1380_fc_gpios,
-	NULL
-};
-
 const struct x86_dev_info lenovo_yoga_tab2_1380_info __initconst = {
 	.i2c_client_info = lenovo_yoga_tab2_1380_i2c_clients,
 	.i2c_client_count = ARRAY_SIZE(lenovo_yoga_tab2_1380_i2c_clients),
 	.pdev_info = lenovo_yoga_tab2_1380_pdevs,
 	.pdev_count = ARRAY_SIZE(lenovo_yoga_tab2_1380_pdevs),
 	.gpio_button = &lenovo_yoga_tab2_830_1050_lid,
 	.gpio_button_count = 1,
-	.gpiod_lookup_tables = lenovo_yoga_tab2_1380_gpios,
 	.bat_swnode = &generic_lipo_hv_4v35_battery_node,
 	.modules = lenovo_yoga_tab2_1380_modules,
+	.gpiochip_type = X86_GPIOCHIP_BAYTRAIL,
 	.init = lenovo_yoga_tab2_1380_init,
 	.exit = lenovo_yoga_tab2_830_1050_exit,
 };