mfd: intel_soc_pmic_chtwc + cell drivers Lenovo Yoga Tab 3 YT3-X90F support

index 9216f0d34206..d53dae255490 100644
@@ -165,6 +165,14 @@ static const struct dmi_system_id cht_wc_model_dmi_ids[] = {
 			/* Non exact match to match all versions */
 			DMI_MATCH(DMI_PRODUCT_NAME, "Lenovo YB1-X9"),
 		},
+	}, {
+		/* Lenovo Yoga Tab 3 Pro YT3-X90F */
+		.driver_data = (void *)(long)INTEL_CHT_WC_LENOVO_YT3_X90,
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Intel Corporation"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "CHERRYVIEW D1 PLATFORM"),
+			DMI_MATCH(DMI_PRODUCT_VERSION, "Blade3-10A-001"),
+		},
 	},
 	{ }
 };

index 945bde1fe55c..9ba2c1a8d836 100644
@@ -18,6 +18,7 @@ enum intel_cht_wc_models {
 	INTEL_CHT_WC_GPD_WIN_POCKET,
 	INTEL_CHT_WC_XIAOMI_MIPAD2,
 	INTEL_CHT_WC_LENOVO_YOGABOOK1,
+	INTEL_CHT_WC_LENOVO_YT3_X90,
 };
 
 /**

index 190abdc46dd3..2b2c3d090089 100644
@@ -380,6 +380,49 @@ static struct i2c_board_info lenovo_yogabook1_board_info = {
 	.platform_data = &bq2589x_pdata,
 };
 
+/********** Lenovo Yogabook YT3-X90F charger settings **********/
+static const char * const lenovo_yt3_bq25892_1_suppliers[] = { "cht_wcove_pwrsrc" };
+
+/*
+ * bq25892 charger settings for the round li-ion cells in the hinge,
+ * this is the main / biggest battery.
+ */
+static const struct property_entry lenovo_yt3_bq25892_1_props[] = {
+	PROPERTY_ENTRY_STRING_ARRAY("supplied-from", lenovo_yt3_bq25892_1_suppliers),
+	PROPERTY_ENTRY_STRING("linux,secondary-charger-name", "bq25890-charger-0"),
+	PROPERTY_ENTRY_U32("linux,iinlim-percentage", 60),
+	PROPERTY_ENTRY_U32("linux,pump-express-vbus-max", 12000000),
+	PROPERTY_ENTRY_BOOL("linux,skip-reset"),
+	/*
+	 * The firmware sets everything to the defaults, leading to a low(ish)
+	 * charge-current and battery-voltage of 2048mA resp 4.2V. Use the
+	 * Android values instead of "linux,read-back-settings" to fix this.
+	 */
+	PROPERTY_ENTRY_U32("ti,charge-current", 3072000),
+	PROPERTY_ENTRY_U32("ti,battery-regulation-voltage", 4352000),
+	PROPERTY_ENTRY_U32("ti,termination-current", 128000),
+	PROPERTY_ENTRY_U32("ti,precharge-current", 128000),
+	PROPERTY_ENTRY_U32("ti,minimum-sys-voltage", 3700000),
+	PROPERTY_ENTRY_BOOL("ti,use-ilim-pin"),
+	/* Set 5V boost current-limit to 1.2A (MAX/POR values are 2.45A/1.4A) */
+	PROPERTY_ENTRY_U32("ti,boost-voltage", 4998000),
+	PROPERTY_ENTRY_U32("ti,boost-max-current", 1200000),
+	{ }
+};
+
+static const struct software_node lenovo_yt3_bq25892_1_node = {
+	.properties = lenovo_yt3_bq25892_1_props,
+};
+
+/* bq25892 charger for the round li-ion cells in the hinge */
+static struct i2c_board_info lenovo_yoga_tab3_board_info = {
+	.type = "bq25892",
+	.addr = 0x6b,
+	.dev_name = "bq25892_1",
+	.swnode = &lenovo_yt3_bq25892_1_node,
+	.platform_data = &bq2589x_pdata,
+};
+
 static int cht_wc_i2c_adap_i2c_probe(struct platform_device *pdev)
 {
 	struct intel_soc_pmic *pmic = dev_get_drvdata(pdev->dev.parent);

@@ -459,6 +502,9 @@ static int cht_wc_i2c_adap_i2c_probe(struct platform_device *pdev)
 	case INTEL_CHT_WC_LENOVO_YOGABOOK1:
 		board_info = &lenovo_yogabook1_board_info;
 		break;
+	case INTEL_CHT_WC_LENOVO_YT3_X90:
+		board_info = &lenovo_yoga_tab3_board_info;
+		break;
 	default:
 		dev_warn(&pdev->dev, "Unknown model, not instantiating charger device\n");
 		break;

index 89a6449e3f4a..2c55f06ba699 100644
@@ -537,6 +537,7 @@ static int cht_wc_extcon_probe(struct platform_device *pdev)
 		cht_wc_extcon_set_5v_boost(ext, false);
 		break;
 	case INTEL_CHT_WC_LENOVO_YOGABOOK1:
+	case INTEL_CHT_WC_LENOVO_YT3_X90:
 		/* Do this first, as it may very well return -EPROBE_DEFER. */
 		ret = cht_wc_extcon_get_role_sw_and_regulator(ext);
 		if (ret)