5 files changed, 378 insertions, 16 deletions

diff --git a/drivers/platform/x86/x86-android-tablets/core.c b/drivers/platform/x86/x86-android-tablets/core.c
index a3415f1c0b5f..919ef4471229 100644
--- a/drivers/platform/x86/x86-android-tablets/core.c
+++ b/drivers/platform/x86/x86-android-tablets/core.c
@@ -52,10 +52,8 @@ int x86_android_tablet_get_gpiod(const char *chip, int pin, const char *con_id,
 		return -ENOMEM;
 
 	lookup->dev_id = KBUILD_MODNAME;
-	lookup->table[0].key = chip;
-	lookup->table[0].chip_hwnum = pin;
-	lookup->table[0].con_id = con_id;
-	lookup->table[0].flags = active_low ? GPIO_ACTIVE_LOW : GPIO_ACTIVE_HIGH;
+	lookup->table[0] =
+		GPIO_LOOKUP(chip, pin, con_id, active_low ? GPIO_ACTIVE_LOW : GPIO_ACTIVE_HIGH);
 
 	gpiod_add_lookup_table(lookup);
 	gpiod = devm_gpiod_get(&x86_android_tablet_device->dev, con_id, dflags);
@@ -278,25 +276,25 @@ static void x86_android_tablet_remove(struct platform_device *pdev)
 {
 	int i;
 
-	for (i = 0; i < serdev_count; i++) {
+	for (i = serdev_count - 1; i >= 0; i--) {
 		if (serdevs[i])
 			serdev_device_remove(serdevs[i]);
 	}
 
 	kfree(serdevs);
 
-	for (i = 0; i < pdev_count; i++)
+	for (i = pdev_count - 1; i >= 0; i--)
 		platform_device_unregister(pdevs[i]);
 
 	kfree(pdevs);
 	kfree(buttons);
 
-	for (i = 0; i < spi_dev_count; i++)
+	for (i = spi_dev_count - 1; i >= 0; i--)
 		spi_unregister_device(spi_devs[i]);
 
 	kfree(spi_devs);
 
-	for (i = 0; i < i2c_client_count; i++)
+	for (i = i2c_client_count - 1; i >= 0; i--)
 		i2c_unregister_device(i2c_clients[i]);
 
 	kfree(i2c_clients);
@@ -343,7 +341,7 @@ static __init int x86_android_tablet_probe(struct platform_device *pdev)
 		gpiod_add_lookup_table(gpiod_lookup_tables[i]);
 
 	if (dev_info->init) {
-		ret = dev_info->init();
+		ret = dev_info->init(&pdev->dev);
 		if (ret < 0) {
 			x86_android_tablet_remove(pdev);
 			return ret;
diff --git a/drivers/platform/x86/x86-android-tablets/dmi.c b/drivers/platform/x86/x86-android-tablets/dmi.c
index 5d6c12494f08..141a2d25e83b 100644
--- a/drivers/platform/x86/x86-android-tablets/dmi.c
+++ b/drivers/platform/x86/x86-android-tablets/dmi.c
@@ -106,6 +106,24 @@ const struct dmi_system_id x86_android_tablet_ids[] __initconst = {
 	},
 	{
 		/*
+		 * Lenovo Yoga Tablet 2 Pro 1380F/L (13") This has more or less
+		 * the same BIOS as the 830F/L or 1050F/L (8" and 10") below,
+		 * but unlike the 8" / 10" models which share the same mainboard
+		 * this model has a different mainboard.
+		 * This match for the 13" model MUST come before the 8" + 10"
+		 * match since that one will also match the 13" model!
+		 */
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Intel Corp."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "VALLEYVIEW C0 PLATFORM"),
+			DMI_MATCH(DMI_BOARD_NAME, "BYT-T FFD8"),
+			/* Full match so as to NOT match the 830/1050 BIOS */
+			DMI_MATCH(DMI_BIOS_VERSION, "BLADE_21.X64.0005.R00.1504101516"),
+		},
+		.driver_data = (void *)&lenovo_yoga_tab2_1380_info,
+	},
+	{
+		/*
 		 * Lenovo Yoga Tablet 2 830F/L or 1050F/L (The 8" and 10"
 		 * Lenovo Yoga Tablet 2 use the same mainboard)
 		 */
diff --git a/drivers/platform/x86/x86-android-tablets/lenovo.c b/drivers/platform/x86/x86-android-tablets/lenovo.c
index c297391955ad..74f39b658d2c 100644
--- a/drivers/platform/x86/x86-android-tablets/lenovo.c
+++ b/drivers/platform/x86/x86-android-tablets/lenovo.c
@@ -19,6 +19,7 @@
 #include <linux/pinctrl/machine.h>
 #include <linux/platform_data/lp855x.h>
 #include <linux/platform_device.h>
+#include <linux/power/bq24190_charger.h>
 #include <linux/reboot.h>
 #include <linux/rmi.h>
 #include <linux/spi/spi.h>
@@ -229,7 +230,7 @@ static struct gpiod_lookup_table * const lenovo_yb1_x90_gpios[] = {
 	NULL
 };
 
-static int __init lenovo_yb1_x90_init(void)
+static int __init lenovo_yb1_x90_init(struct device *dev)
 {
 	/* Enable the regulators used by the touchscreens */
 
@@ -411,7 +412,7 @@ static struct gpiod_lookup_table * const lenovo_yoga_tab2_830_1050_gpios[] = {
 	NULL
 };
 
-static int __init lenovo_yoga_tab2_830_1050_init(void);
+static int __init lenovo_yoga_tab2_830_1050_init(struct device *dev);
 static void lenovo_yoga_tab2_830_1050_exit(void);
 
 const struct x86_dev_info lenovo_yoga_tab2_830_1050_info __initconst = {
@@ -533,7 +534,7 @@ static int lenovo_yoga_tab2_830_1050_power_off(struct sys_off_data *data)
 	return NOTIFY_DONE;
 }
 
-static int __init lenovo_yoga_tab2_830_1050_init(void)
+static int __init lenovo_yoga_tab2_830_1050_init(struct device *dev)
 {
 	int ret;
 
@@ -565,6 +566,221 @@ static void lenovo_yoga_tab2_830_1050_exit(void)
 	}
 }
 
+/*
+ * Lenovo Yoga Tablet 2 Pro 1380F/L
+ *
+ * The Lenovo Yoga Tablet 2 Pro 1380F/L mostly has the same design as the 830F/L
+ * and the 1050F/L so this re-uses some of the handling for that from above.
+ */
+static const char * const lc824206xa_chg_det_psy[] = { "lc824206xa-charger-detect" };
+
+static const struct property_entry lenovo_yoga_tab2_1380_bq24190_props[] = {
+	PROPERTY_ENTRY_STRING_ARRAY("supplied-from", lc824206xa_chg_det_psy),
+	PROPERTY_ENTRY_REF("monitored-battery", &generic_lipo_hv_4v35_battery_node),
+	PROPERTY_ENTRY_BOOL("omit-battery-class"),
+	PROPERTY_ENTRY_BOOL("disable-reset"),
+	{ }
+};
+
+static const struct software_node lenovo_yoga_tab2_1380_bq24190_node = {
+	.properties = lenovo_yoga_tab2_1380_bq24190_props,
+};
+
+/* For enabling the bq24190 5V boost based on id-pin */
+static struct regulator_consumer_supply lc824206xa_consumer = {
+	.supply = "vbus",
+	.dev_name = "i2c-lc824206xa",
+};
+
+static const struct regulator_init_data lenovo_yoga_tab2_1380_bq24190_vbus_init_data = {
+	.constraints = {
+		.name = "bq24190_vbus",
+		.valid_ops_mask = REGULATOR_CHANGE_STATUS,
+	},
+	.consumer_supplies = &lc824206xa_consumer,
+	.num_consumer_supplies = 1,
+};
+
+struct bq24190_platform_data lenovo_yoga_tab2_1380_bq24190_pdata = {
+	.regulator_init_data = &lenovo_yoga_tab2_1380_bq24190_vbus_init_data,
+};
+
+static const struct property_entry lenovo_yoga_tab2_1380_lc824206xa_props[] = {
+	PROPERTY_ENTRY_BOOL("onnn,enable-miclr-for-dcp"),
+	{ }
+};
+
+static const struct software_node lenovo_yoga_tab2_1380_lc824206xa_node = {
+	.properties = lenovo_yoga_tab2_1380_lc824206xa_props,
+};
+
+static const char * const lenovo_yoga_tab2_1380_lms303d_mount_matrix[] = {
+	"0", "-1", "0",
+	"-1", "0", "0",
+	"0", "0", "1"
+};
+
+static const struct property_entry lenovo_yoga_tab2_1380_lms303d_props[] = {
+	PROPERTY_ENTRY_STRING_ARRAY("mount-matrix", lenovo_yoga_tab2_1380_lms303d_mount_matrix),
+	{ }
+};
+
+static const struct software_node lenovo_yoga_tab2_1380_lms303d_node = {
+	.properties = lenovo_yoga_tab2_1380_lms303d_props,
+};
+
+static const struct x86_i2c_client_info lenovo_yoga_tab2_1380_i2c_clients[] __initconst = {
+	{
+		/* BQ27541 fuel-gauge */
+		.board_info = {
+			.type = "bq27541",
+			.addr = 0x55,
+			.dev_name = "bq27541",
+			.swnode = &fg_bq24190_supply_node,
+		},
+		.adapter_path = "\\_SB_.I2C1",
+	}, {
+		/* bq24292i battery charger */
+		.board_info = {
+			.type = "bq24190",
+			.addr = 0x6b,
+			.dev_name = "bq24292i",
+			.swnode = &lenovo_yoga_tab2_1380_bq24190_node,
+			.platform_data = &lenovo_yoga_tab2_1380_bq24190_pdata,
+		},
+		.adapter_path = "\\_SB_.I2C1",
+		.irq_data = {
+			.type = X86_ACPI_IRQ_TYPE_GPIOINT,
+			.chip = "INT33FC:02",
+			.index = 2,
+			.trigger = ACPI_EDGE_SENSITIVE,
+			.polarity = ACPI_ACTIVE_HIGH,
+			.con_id = "bq24292i_irq",
+		},
+	}, {
+		/* LP8557 Backlight controller */
+		.board_info = {
+			.type = "lp8557",
+			.addr = 0x2c,
+			.dev_name = "lp8557",
+			.platform_data = &lenovo_lp8557_pwm_and_reg_pdata,
+		},
+		.adapter_path = "\\_SB_.I2C3",
+	}, {
+		/* LC824206XA Micro USB Switch */
+		.board_info = {
+			.type = "lc824206xa",
+			.addr = 0x48,
+			.dev_name = "lc824206xa",
+			.swnode = &lenovo_yoga_tab2_1380_lc824206xa_node,
+		},
+		.adapter_path = "\\_SB_.I2C3",
+		.irq_data = {
+			.type = X86_ACPI_IRQ_TYPE_GPIOINT,
+			.chip = "INT33FC:02",
+			.index = 1,
+			.trigger = ACPI_LEVEL_SENSITIVE,
+			.polarity = ACPI_ACTIVE_LOW,
+			.con_id = "lc824206xa_irq",
+		},
+	}, {
+		/* AL3320A ambient light sensor */
+		.board_info = {
+			.type = "al3320a",
+			.addr = 0x1c,
+			.dev_name = "al3320a",
+		},
+		.adapter_path = "\\_SB_.I2C5",
+	}, {
+		/* LSM303DA accelerometer + magnetometer */
+		.board_info = {
+			.type = "lsm303d",
+			.addr = 0x1d,
+			.dev_name = "lsm303d",
+			.swnode = &lenovo_yoga_tab2_1380_lms303d_node,
+		},
+		.adapter_path = "\\_SB_.I2C5",
+	}, {
+		/* Synaptics RMI touchscreen */
+		.board_info = {
+			.type = "rmi4_i2c",
+			.addr = 0x38,
+			.dev_name = "rmi4_i2c",
+			.platform_data = &lenovo_yoga_tab2_830_1050_rmi_pdata,
+		},
+		.adapter_path = "\\_SB_.I2C6",
+		.irq_data = {
+			.type = X86_ACPI_IRQ_TYPE_APIC,
+			.index = 0x45,
+			.trigger = ACPI_EDGE_SENSITIVE,
+			.polarity = ACPI_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,
+	},
+};
+
+const char * const lenovo_yoga_tab2_1380_modules[] __initconst = {
+	"bq24190_charger",            /* For the Vbus regulator for lc824206xa */
+	NULL
+};
+
+static int __init lenovo_yoga_tab2_1380_init(struct device *dev)
+{
+	int ret;
+
+	/* To verify that the DMI matching works vs the 830 / 1050 models */
+	pr_info("detected Lenovo Yoga Tablet 2 Pro 1380F/L\n");
+
+	ret = lenovo_yoga_tab2_830_1050_init_codec();
+	if (ret)
+		return ret;
+
+	/* SYS_OFF_PRIO_FIRMWARE + 1 so that it runs before acpi_power_off */
+	lenovo_yoga_tab2_830_1050_sys_off_handler =
+		register_sys_off_handler(SYS_OFF_MODE_POWER_OFF, SYS_OFF_PRIO_FIRMWARE + 1,
+					 lenovo_yoga_tab2_830_1050_power_off, NULL);
+	if (IS_ERR(lenovo_yoga_tab2_830_1050_sys_off_handler))
+		return PTR_ERR(lenovo_yoga_tab2_830_1050_sys_off_handler);
+
+	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_830_1050_codec_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,
+	.init = lenovo_yoga_tab2_1380_init,
+	.exit = lenovo_yoga_tab2_830_1050_exit,
+};
+
 /* Lenovo Yoga Tab 3 Pro YT3-X90F */
 
 /*
@@ -762,7 +978,7 @@ static const struct x86_spi_dev_info lenovo_yt3_spi_devs[] __initconst = {
 	}
 };
 
-static int __init lenovo_yt3_init(void)
+static int __init lenovo_yt3_init(struct device *dev)
 {
 	int ret;
 
diff --git a/drivers/platform/x86/x86-android-tablets/other.c b/drivers/platform/x86/x86-android-tablets/other.c
index 278402dcb808..eb0e55c69dfe 100644
--- a/drivers/platform/x86/x86-android-tablets/other.c
+++ b/drivers/platform/x86/x86-android-tablets/other.c
@@ -11,7 +11,11 @@
 #include <linux/acpi.h>
 #include <linux/gpio/machine.h>
 #include <linux/input.h>
+#include <linux/leds.h>
 #include <linux/platform_device.h>
+#include <linux/pwm.h>
+
+#include <dt-bindings/leds/common.h>
 
 #include "shared-psy-info.h"
 #include "x86-android-tablets.h"
@@ -181,7 +185,7 @@ static const struct x86_i2c_client_info chuwi_hi8_i2c_clients[] __initconst = {
 	},
 };
 
-static int __init chuwi_hi8_init(void)
+static int __init chuwi_hi8_init(struct device *dev)
 {
 	/*
 	 * Avoid the acpi_unregister_gsi() call in x86_acpi_irq_helper_get()
@@ -242,7 +246,7 @@ const struct x86_dev_info cyberbook_t116_info __initconst = {
 #define CZC_EC_EXTRA_PORT	0x68
 #define CZC_EC_ANDROID_KEYS	0x63
 
-static int __init czc_p10t_init(void)
+static int __init czc_p10t_init(struct device *dev)
 {
 	/*
 	 * The device boots up in "Windows 7" mode, when the home button sends a
@@ -594,6 +598,128 @@ const struct x86_dev_info whitelabel_tm800a550l_info __initconst = {
 };
 
 /*
+ * The fwnode for ktd2026 on Xaomi pad2. It composed of a RGB LED node
+ * with three subnodes for each color (B/G/R). The RGB LED node is named
+ * "multi-led" to align with the name in the device tree.
+ */
+
+/* main fwnode for ktd2026 */
+static const struct software_node ktd2026_node = {
+	.name = "ktd2026",
+};
+
+static const struct property_entry ktd2026_rgb_led_props[] = {
+	PROPERTY_ENTRY_U32("reg", 0),
+	PROPERTY_ENTRY_U32("color", LED_COLOR_ID_RGB),
+	PROPERTY_ENTRY_STRING("label", "mipad2:rgb:indicator"),
+	PROPERTY_ENTRY_STRING("linux,default-trigger", "bq27520-0-charging-orange-full-green"),
+	{ }
+};
+
+static const struct software_node ktd2026_rgb_led_node = {
+	.name = "multi-led",
+	.properties = ktd2026_rgb_led_props,
+	.parent = &ktd2026_node,
+};
+
+static const struct property_entry ktd2026_blue_led_props[] = {
+	PROPERTY_ENTRY_U32("reg", 0),
+	PROPERTY_ENTRY_U32("color", LED_COLOR_ID_BLUE),
+	{ }
+};
+
+static const struct software_node ktd2026_blue_led_node = {
+	.properties = ktd2026_blue_led_props,
+	.parent = &ktd2026_rgb_led_node,
+};
+
+static const struct property_entry ktd2026_green_led_props[] = {
+	PROPERTY_ENTRY_U32("reg", 1),
+	PROPERTY_ENTRY_U32("color", LED_COLOR_ID_GREEN),
+	{ }
+};
+
+static const struct software_node ktd2026_green_led_node = {
+	.properties = ktd2026_green_led_props,
+	.parent = &ktd2026_rgb_led_node,
+};
+
+static const struct property_entry ktd2026_red_led_props[] = {
+	PROPERTY_ENTRY_U32("reg", 2),
+	PROPERTY_ENTRY_U32("color", LED_COLOR_ID_RED),
+	{ }
+};
+
+static const struct software_node ktd2026_red_led_node = {
+	.properties = ktd2026_red_led_props,
+	.parent = &ktd2026_rgb_led_node,
+};
+
+static const struct software_node *ktd2026_node_group[] = {
+	&ktd2026_node,
+	&ktd2026_rgb_led_node,
+	&ktd2026_red_led_node,
+	&ktd2026_green_led_node,
+	&ktd2026_blue_led_node,
+	NULL
+};
+
+/*
+ * For the LEDs which backlight the menu / home / back capacitive buttons on
+ * the bottom bezel. These are attached to a TPS61158 LED controller which
+ * is controlled by the "pwm_soc_lpss_2" PWM output.
+ */
+#define XIAOMI_MIPAD2_LED_PERIOD_NS		19200
+#define XIAOMI_MIPAD2_LED_DEFAULT_DUTY		 6000 /* From Android kernel */
+
+static struct pwm_device *xiaomi_mipad2_led_pwm;
+
+static int xiaomi_mipad2_brightness_set(struct led_classdev *led_cdev,
+					enum led_brightness val)
+{
+	struct pwm_state state = {
+		.period = XIAOMI_MIPAD2_LED_PERIOD_NS,
+		.duty_cycle = val,
+		/* Always set PWM enabled to avoid the pin floating */
+		.enabled = true,
+	};
+
+	return pwm_apply_might_sleep(xiaomi_mipad2_led_pwm, &state);
+}
+
+static int __init xiaomi_mipad2_init(struct device *dev)
+{
+	struct led_classdev *led_cdev;
+	int ret;
+
+	xiaomi_mipad2_led_pwm = devm_pwm_get(dev, "pwm_soc_lpss_2");
+	if (IS_ERR(xiaomi_mipad2_led_pwm))
+		return dev_err_probe(dev, PTR_ERR(xiaomi_mipad2_led_pwm), "getting pwm\n");
+
+	led_cdev = devm_kzalloc(dev, sizeof(*led_cdev), GFP_KERNEL);
+	if (!led_cdev)
+		return -ENOMEM;
+
+	led_cdev->name = "mipad2:white:touch-buttons-backlight";
+	led_cdev->max_brightness = XIAOMI_MIPAD2_LED_PERIOD_NS;
+	/* "input-events" trigger uses blink_brightness */
+	led_cdev->blink_brightness = XIAOMI_MIPAD2_LED_DEFAULT_DUTY;
+	led_cdev->default_trigger = "input-events";
+	led_cdev->brightness_set_blocking = xiaomi_mipad2_brightness_set;
+
+	ret = devm_led_classdev_register(dev, led_cdev);
+	if (ret)
+		return dev_err_probe(dev, ret, "registering LED\n");
+
+	return software_node_register_node_group(ktd2026_node_group);
+}
+
+static void xiaomi_mipad2_exit(void)
+{
+	software_node_unregister_node_group(ktd2026_node_group);
+}
+
+/*
  * If the EFI bootloader is not Xiaomi's own signed Android loader, then the
  * Xiaomi Mi Pad 2 X86 tablet sets OSID in the DSDT to 1 (Windows), causing
  * a bunch of devices to be hidden.
@@ -616,6 +742,7 @@ static const struct x86_i2c_client_info xiaomi_mipad2_i2c_clients[] __initconst
 			.type = "ktd2026",
 			.addr = 0x30,
 			.dev_name = "ktd2026",
+			.swnode = &ktd2026_node,
 		},
 		.adapter_path = "\\_SB_.PCI0.I2C3",
 	},
@@ -624,4 +751,6 @@ static const struct x86_i2c_client_info xiaomi_mipad2_i2c_clients[] __initconst
 const struct x86_dev_info xiaomi_mipad2_info __initconst = {
 	.i2c_client_info = xiaomi_mipad2_i2c_clients,
 	.i2c_client_count = ARRAY_SIZE(xiaomi_mipad2_i2c_clients),
+	.init = xiaomi_mipad2_init,
+	.exit = xiaomi_mipad2_exit,
 };
diff --git a/drivers/platform/x86/x86-android-tablets/x86-android-tablets.h b/drivers/platform/x86/x86-android-tablets/x86-android-tablets.h
index 468993edfeee..86402b9b46a3 100644
--- a/drivers/platform/x86/x86-android-tablets/x86-android-tablets.h
+++ b/drivers/platform/x86/x86-android-tablets/x86-android-tablets.h
@@ -89,7 +89,7 @@ struct x86_dev_info {
 	int pdev_count;
 	int serdev_count;
 	int gpio_button_count;
-	int (*init)(void);
+	int (*init)(struct device *dev);
 	void (*exit)(void);
 };
 
@@ -112,6 +112,7 @@ extern const struct x86_dev_info czc_p10t;
 extern const struct x86_dev_info lenovo_yogabook_x90_info;
 extern const struct x86_dev_info lenovo_yogabook_x91_info;
 extern const struct x86_dev_info lenovo_yoga_tab2_830_1050_info;
+extern const struct x86_dev_info lenovo_yoga_tab2_1380_info;
 extern const struct x86_dev_info lenovo_yt3_info;
 extern const struct x86_dev_info medion_lifetab_s10346_info;
 extern const struct x86_dev_info nextbook_ares8_info;