obj-$(CONFIG_X86_ANDROID_TABLETS) += x86-android-tablets.o
-x86-android-tablets-y := core.o dmi.o shared-psy-info.o asus.o x86-android-tablets-main.o
+x86-android-tablets-y := core.o dmi.o shared-psy-info.o \
+ asus.o lenovo.o x86-android-tablets-main.o
--- /dev/null
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Board info for Lenovo X86 tablets which ship with Android as the factory image
+ * and which have broken DSDT tables. The factory kernels shipped on these
+ * devices typically have a bunch of things hardcoded, rather than specified
+ * in their DSDT.
+ *
+ * Copyright (C) 2021-2023 Hans de Goede <hdegoede@redhat.com>
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/efi.h>
+#include <linux/gpio/machine.h>
+#include <linux/pinctrl/consumer.h>
+#include <linux/pinctrl/machine.h>
+#include <linux/platform_data/lp855x.h>
+#include <linux/platform_device.h>
+#include <linux/reboot.h>
+#include <linux/rmi.h>
+#include <linux/spi/spi.h>
+
+#include "shared-psy-info.h"
+#include "x86-android-tablets.h"
+
+/* Lenovo Yoga Book X90F / X91F / X91L need manual instantiation of the fg client */
+static const struct x86_i2c_client_info lenovo_yogabook_x9x_i2c_clients[] __initconst = {
+ {
+ /* BQ27542 fuel-gauge */
+ .board_info = {
+ .type = "bq27542",
+ .addr = 0x55,
+ .dev_name = "bq27542",
+ .swnode = &fg_bq25890_supply_node,
+ },
+ .adapter_path = "\\_SB_.PCI0.I2C1",
+ },
+};
+
+const struct x86_dev_info lenovo_yogabook_x9x_info __initconst = {
+ .i2c_client_info = lenovo_yogabook_x9x_i2c_clients,
+ .i2c_client_count = ARRAY_SIZE(lenovo_yogabook_x9x_i2c_clients),
+};
+
+/* Lenovo Yoga Tablet 2 1050F/L's Android factory img has everything hardcoded */
+static const struct property_entry lenovo_yoga_tab2_830_1050_bq24190_props[] = {
+ PROPERTY_ENTRY_STRING_ARRAY_LEN("supplied-from", tusb1211_chg_det_psy, 1),
+ 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_830_1050_bq24190_node = {
+ .properties = lenovo_yoga_tab2_830_1050_bq24190_props,
+};
+
+/* This gets filled by lenovo_yoga_tab2_830_1050_init() */
+static struct rmi_device_platform_data lenovo_yoga_tab2_830_1050_rmi_pdata = { };
+
+static struct lp855x_platform_data lenovo_yoga_tab2_830_1050_lp8557_pdata = {
+ .device_control = 0x86,
+ .initial_brightness = 128,
+};
+
+static const struct x86_i2c_client_info lenovo_yoga_tab2_830_1050_i2c_clients[] __initconst = {
+ {
+ /* bq24292i battery charger */
+ .board_info = {
+ .type = "bq24190",
+ .addr = 0x6b,
+ .dev_name = "bq24292i",
+ .swnode = &lenovo_yoga_tab2_830_1050_bq24190_node,
+ .platform_data = &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,
+ },
+ }, {
+ /* BQ27541 fuel-gauge */
+ .board_info = {
+ .type = "bq27541",
+ .addr = 0x55,
+ .dev_name = "bq27541",
+ .swnode = &fg_bq24190_supply_node,
+ },
+ .adapter_path = "\\_SB_.I2C1",
+ }, {
+ /* 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,
+ },
+ }, {
+ /* LP8557 Backlight controller */
+ .board_info = {
+ .type = "lp8557",
+ .addr = 0x2c,
+ .dev_name = "lp8557",
+ .platform_data = &lenovo_yoga_tab2_830_1050_lp8557_pdata,
+ },
+ .adapter_path = "\\_SB_.I2C3",
+ },
+};
+
+static struct gpiod_lookup_table lenovo_yoga_tab2_830_1050_int3496_gpios = {
+ .dev_id = "intel-int3496",
+ .table = {
+ GPIO_LOOKUP("INT33FC:02", 1, "mux", GPIO_ACTIVE_LOW),
+ GPIO_LOOKUP("INT33FC:02", 24, "id", GPIO_ACTIVE_HIGH),
+ { }
+ },
+};
+
+#define LENOVO_YOGA_TAB2_830_1050_CODEC_NAME "spi-10WM5102:00"
+
+static struct gpiod_lookup_table lenovo_yoga_tab2_830_1050_codec_gpios = {
+ .dev_id = LENOVO_YOGA_TAB2_830_1050_CODEC_NAME,
+ .table = {
+ GPIO_LOOKUP("gpio_crystalcove", 3, "reset", GPIO_ACTIVE_HIGH),
+ GPIO_LOOKUP("INT33FC:01", 23, "wlf,ldoena", GPIO_ACTIVE_HIGH),
+ GPIO_LOOKUP("arizona", 2, "wlf,spkvdd-ena", GPIO_ACTIVE_HIGH),
+ GPIO_LOOKUP("arizona", 4, "wlf,micd-pol", GPIO_ACTIVE_LOW),
+ { }
+ },
+};
+
+static struct gpiod_lookup_table * const lenovo_yoga_tab2_830_1050_gpios[] = {
+ &lenovo_yoga_tab2_830_1050_int3496_gpios,
+ &lenovo_yoga_tab2_830_1050_codec_gpios,
+ NULL
+};
+
+static int __init lenovo_yoga_tab2_830_1050_init(void);
+static void lenovo_yoga_tab2_830_1050_exit(void);
+
+struct x86_dev_info lenovo_yoga_tab2_830_1050_info __initdata = {
+ .i2c_client_info = lenovo_yoga_tab2_830_1050_i2c_clients,
+ /* i2c_client_count gets set by lenovo_yoga_tab2_830_1050_init() */
+ .pdev_info = int3496_pdevs,
+ .pdev_count = 1,
+ .gpiod_lookup_tables = lenovo_yoga_tab2_830_1050_gpios,
+ .bat_swnode = &generic_lipo_hv_4v35_battery_node,
+ .modules = bq24190_modules,
+ .init = lenovo_yoga_tab2_830_1050_init,
+ .exit = lenovo_yoga_tab2_830_1050_exit,
+};
+
+/*
+ * The Lenovo Yoga Tablet 2 830 and 1050 (8" vs 10") versions use the same
+ * mainboard, but they need some different treatment related to the display:
+ * 1. The 830 uses a portrait LCD panel with a landscape touchscreen, requiring
+ * the touchscreen driver to adjust the touch-coords to match the LCD.
+ * 2. Both use an TI LP8557 LED backlight controller. On the 1050 the LP8557's
+ * PWM input is connected to the PMIC's PWM output and everything works fine
+ * with the defaults programmed into the LP8557 by the BIOS.
+ * But on the 830 the LP8557's PWM input is connected to a PWM output coming
+ * from the LCD panel's controller. The Android code has a hack in the i915
+ * driver to write the non-standard DSI reg 0x9f with the desired backlight
+ * level to set the duty-cycle of the LCD's PWM output.
+ *
+ * To avoid having to have a similar hack in the mainline kernel the LP8557
+ * entry in lenovo_yoga_tab2_830_1050_i2c_clients instead just programs the
+ * LP8557 to directly set the level, ignoring the PWM input. This means that
+ * the LP8557 i2c_client should only be instantiated on the 830.
+ */
+static int __init lenovo_yoga_tab2_830_1050_init_display(void)
+{
+ struct gpio_desc *gpiod;
+ int ret;
+
+ /* Use PMIC GPIO 10 bootstrap pin to differentiate 830 vs 1050 */
+ ret = x86_android_tablet_get_gpiod("gpio_crystalcove", 10, &gpiod);
+ if (ret)
+ return ret;
+
+ ret = gpiod_get_value_cansleep(gpiod);
+ if (ret) {
+ pr_info("detected Lenovo Yoga Tablet 2 1050F/L\n");
+ lenovo_yoga_tab2_830_1050_info.i2c_client_count =
+ ARRAY_SIZE(lenovo_yoga_tab2_830_1050_i2c_clients) - 1;
+ } else {
+ pr_info("detected Lenovo Yoga Tablet 2 830F/L\n");
+ lenovo_yoga_tab2_830_1050_rmi_pdata.sensor_pdata.axis_align.swap_axes = true;
+ lenovo_yoga_tab2_830_1050_rmi_pdata.sensor_pdata.axis_align.flip_y = true;
+ lenovo_yoga_tab2_830_1050_info.i2c_client_count =
+ ARRAY_SIZE(lenovo_yoga_tab2_830_1050_i2c_clients);
+ }
+
+ return 0;
+}
+
+/* SUS (INT33FC:02) pin 6 needs to be configured as pmu_clk for the audio codec */
+static const struct pinctrl_map lenovo_yoga_tab2_830_1050_codec_pinctrl_map =
+ PIN_MAP_MUX_GROUP(LENOVO_YOGA_TAB2_830_1050_CODEC_NAME, "codec_32khz_clk",
+ "INT33FC:02", "pmu_clk2_grp", "pmu_clk");
+
+static struct pinctrl *lenovo_yoga_tab2_830_1050_codec_pinctrl;
+static struct sys_off_handler *lenovo_yoga_tab2_830_1050_sys_off_handler;
+
+static int __init lenovo_yoga_tab2_830_1050_init_codec(void)
+{
+ struct device *codec_dev;
+ struct pinctrl *pinctrl;
+ int ret;
+
+ codec_dev = bus_find_device_by_name(&spi_bus_type, NULL,
+ LENOVO_YOGA_TAB2_830_1050_CODEC_NAME);
+ if (!codec_dev) {
+ pr_err("error cannot find %s device\n", LENOVO_YOGA_TAB2_830_1050_CODEC_NAME);
+ return -ENODEV;
+ }
+
+ ret = pinctrl_register_mappings(&lenovo_yoga_tab2_830_1050_codec_pinctrl_map, 1);
+ if (ret)
+ goto err_put_device;
+
+ pinctrl = pinctrl_get_select(codec_dev, "codec_32khz_clk");
+ if (IS_ERR(pinctrl)) {
+ ret = dev_err_probe(codec_dev, PTR_ERR(pinctrl), "selecting codec_32khz_clk\n");
+ goto err_unregister_mappings;
+ }
+
+ /* We're done with the codec_dev now */
+ put_device(codec_dev);
+
+ lenovo_yoga_tab2_830_1050_codec_pinctrl = pinctrl;
+ return 0;
+
+err_unregister_mappings:
+ pinctrl_unregister_mappings(&lenovo_yoga_tab2_830_1050_codec_pinctrl_map);
+err_put_device:
+ put_device(codec_dev);
+ return ret;
+}
+
+/*
+ * These tablet's DSDT does not set acpi_gbl_reduced_hardware, so acpi_power_off
+ * gets used as pm_power_off handler. This causes "poweroff" on these tablets
+ * to hang hard. Requiring pressing the powerbutton for 30 seconds *twice*
+ * followed by a normal 3 second press to recover. Avoid this by doing an EFI
+ * poweroff instead.
+ */
+static int lenovo_yoga_tab2_830_1050_power_off(struct sys_off_data *data)
+{
+ efi.reset_system(EFI_RESET_SHUTDOWN, EFI_SUCCESS, 0, NULL);
+
+ return NOTIFY_DONE;
+}
+
+static int __init lenovo_yoga_tab2_830_1050_init(void)
+{
+ int ret;
+
+ ret = lenovo_yoga_tab2_830_1050_init_display();
+ if (ret)
+ return ret;
+
+ 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 void lenovo_yoga_tab2_830_1050_exit(void)
+{
+ unregister_sys_off_handler(lenovo_yoga_tab2_830_1050_sys_off_handler);
+
+ if (lenovo_yoga_tab2_830_1050_codec_pinctrl) {
+ pinctrl_put(lenovo_yoga_tab2_830_1050_codec_pinctrl);
+ pinctrl_unregister_mappings(&lenovo_yoga_tab2_830_1050_codec_pinctrl_map);
+ }
+}
+
+/* Lenovo Yoga Tab 3 Pro YT3-X90F */
+
+/*
+ * There are 2 batteries, with 2 bq27500 fuel-gauges and 2 bq25892 chargers,
+ * "bq25890-charger-1" is instantiated from: drivers/i2c/busses/i2c-cht-wc.c.
+ */
+static const char * const lenovo_yt3_bq25892_0_suppliers[] = { "cht_wcove_pwrsrc" };
+static const char * const bq25890_1_psy[] = { "bq25890-charger-1" };
+
+static const struct property_entry fg_bq25890_1_supply_props[] = {
+ PROPERTY_ENTRY_STRING_ARRAY("supplied-from", bq25890_1_psy),
+ { }
+};
+
+static const struct software_node fg_bq25890_1_supply_node = {
+ .properties = fg_bq25890_1_supply_props,
+};
+
+/* bq25892 charger settings for the flat lipo battery behind the screen */
+static const struct property_entry lenovo_yt3_bq25892_0_props[] = {
+ PROPERTY_ENTRY_STRING_ARRAY("supplied-from", lenovo_yt3_bq25892_0_suppliers),
+ PROPERTY_ENTRY_STRING("linux,power-supply-name", "bq25892-second-chrg"),
+ PROPERTY_ENTRY_U32("linux,iinlim-percentage", 40),
+ PROPERTY_ENTRY_BOOL("linux,skip-reset"),
+ /* Values taken from Android Factory Image */
+ PROPERTY_ENTRY_U32("ti,charge-current", 2048000),
+ 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_U32("ti,boost-voltage", 4998000),
+ PROPERTY_ENTRY_U32("ti,boost-max-current", 500000),
+ PROPERTY_ENTRY_BOOL("ti,use-ilim-pin"),
+ { }
+};
+
+static const struct software_node lenovo_yt3_bq25892_0_node = {
+ .properties = lenovo_yt3_bq25892_0_props,
+};
+
+static const struct x86_i2c_client_info lenovo_yt3_i2c_clients[] __initconst = {
+ {
+ /* bq27500 fuel-gauge for the flat lipo battery behind the screen */
+ .board_info = {
+ .type = "bq27500",
+ .addr = 0x55,
+ .dev_name = "bq27500_0",
+ .swnode = &fg_bq25890_supply_node,
+ },
+ .adapter_path = "\\_SB_.PCI0.I2C1",
+ }, {
+ /* bq25892 charger for the flat lipo battery behind the screen */
+ .board_info = {
+ .type = "bq25892",
+ .addr = 0x6b,
+ .dev_name = "bq25892_0",
+ .swnode = &lenovo_yt3_bq25892_0_node,
+ },
+ .adapter_path = "\\_SB_.PCI0.I2C1",
+ .irq_data = {
+ .type = X86_ACPI_IRQ_TYPE_GPIOINT,
+ .chip = "INT33FF:01",
+ .index = 5,
+ .trigger = ACPI_EDGE_SENSITIVE,
+ .polarity = ACPI_ACTIVE_LOW,
+ },
+ }, {
+ /* bq27500 fuel-gauge for the round li-ion cells in the hinge */
+ .board_info = {
+ .type = "bq27500",
+ .addr = 0x55,
+ .dev_name = "bq27500_1",
+ .swnode = &fg_bq25890_1_supply_node,
+ },
+ .adapter_path = "\\_SB_.PCI0.I2C2",
+ }
+};
+
+static int __init lenovo_yt3_init(void)
+{
+ struct gpio_desc *gpiod;
+ int ret;
+
+ /*
+ * The "bq25892_0" charger IC has its /CE (Charge-Enable) and OTG pins
+ * connected to GPIOs, rather then having them hardwired to the correct
+ * values as is normally done.
+ *
+ * The bq25890_charger driver controls these through I2C, but this only
+ * works if not overridden by the pins. Set these pins here:
+ * 1. Set /CE to 0 to allow charging.
+ * 2. Set OTG to 0 disable V5 boost output since the 5V boost output of
+ * the main "bq25892_1" charger is used when necessary.
+ */
+
+ /* /CE pin */
+ ret = x86_android_tablet_get_gpiod("INT33FF:02", 22, &gpiod);
+ if (ret < 0)
+ return ret;
+
+ /*
+ * The gpio_desc returned by x86_android_tablet_get_gpiod() is a "raw"
+ * gpio_desc, that is there is no way to pass lookup-flags like
+ * GPIO_ACTIVE_LOW. Set the GPIO to 0 here to enable charging since
+ * the /CE pin is active-low, but not marked as such in the gpio_desc.
+ */
+ gpiod_set_value(gpiod, 0);
+
+ /* OTG pin */
+ ret = x86_android_tablet_get_gpiod("INT33FF:03", 19, &gpiod);
+ if (ret < 0)
+ return ret;
+
+ gpiod_set_value(gpiod, 0);
+
+ return 0;
+}
+
+const struct x86_dev_info lenovo_yt3_info __initconst = {
+ .i2c_client_info = lenovo_yt3_i2c_clients,
+ .i2c_client_count = ARRAY_SIZE(lenovo_yt3_i2c_clients),
+ .init = lenovo_yt3_init,
+};
* Copyright (C) 2021-2022 Hans de Goede <hdegoede@redhat.com>
*/
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
#include <linux/acpi.h>
-#include <linux/efi.h>
#include <linux/gpio_keys.h>
+#include <linux/gpio/consumer.h>
#include <linux/gpio/machine.h>
#include <linux/input.h>
-#include <linux/pinctrl/consumer.h>
-#include <linux/pinctrl/machine.h>
-#include <linux/platform_data/lp855x.h>
#include <linux/platform_device.h>
-#include <linux/reboot.h>
-#include <linux/rmi.h>
-#include <linux/spi/spi.h>
#include "shared-psy-info.h"
#include "x86-android-tablets.h"
.init = czc_p10t_init,
};
-/* Lenovo Yoga Book X90F / X91F / X91L need manual instantiation of the fg client */
-static const struct x86_i2c_client_info lenovo_yogabook_x9x_i2c_clients[] __initconst = {
- {
- /* BQ27542 fuel-gauge */
- .board_info = {
- .type = "bq27542",
- .addr = 0x55,
- .dev_name = "bq27542",
- .swnode = &fg_bq25890_supply_node,
- },
- .adapter_path = "\\_SB_.PCI0.I2C1",
- },
-};
-
-const struct x86_dev_info lenovo_yogabook_x9x_info __initconst = {
- .i2c_client_info = lenovo_yogabook_x9x_i2c_clients,
- .i2c_client_count = ARRAY_SIZE(lenovo_yogabook_x9x_i2c_clients),
-};
-
-/* Lenovo Yoga Tablet 2 1050F/L's Android factory img has everything hardcoded */
-static const struct property_entry lenovo_yoga_tab2_830_1050_bq24190_props[] = {
- PROPERTY_ENTRY_STRING_ARRAY_LEN("supplied-from", tusb1211_chg_det_psy, 1),
- 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_830_1050_bq24190_node = {
- .properties = lenovo_yoga_tab2_830_1050_bq24190_props,
-};
-
-/* This gets filled by lenovo_yoga_tab2_830_1050_init() */
-static struct rmi_device_platform_data lenovo_yoga_tab2_830_1050_rmi_pdata = { };
-
-static struct lp855x_platform_data lenovo_yoga_tab2_830_1050_lp8557_pdata = {
- .device_control = 0x86,
- .initial_brightness = 128,
-};
-
-static const struct x86_i2c_client_info lenovo_yoga_tab2_830_1050_i2c_clients[] __initconst = {
- {
- /* bq24292i battery charger */
- .board_info = {
- .type = "bq24190",
- .addr = 0x6b,
- .dev_name = "bq24292i",
- .swnode = &lenovo_yoga_tab2_830_1050_bq24190_node,
- .platform_data = &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,
- },
- }, {
- /* BQ27541 fuel-gauge */
- .board_info = {
- .type = "bq27541",
- .addr = 0x55,
- .dev_name = "bq27541",
- .swnode = &fg_bq24190_supply_node,
- },
- .adapter_path = "\\_SB_.I2C1",
- }, {
- /* 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,
- },
- }, {
- /* LP8557 Backlight controller */
- .board_info = {
- .type = "lp8557",
- .addr = 0x2c,
- .dev_name = "lp8557",
- .platform_data = &lenovo_yoga_tab2_830_1050_lp8557_pdata,
- },
- .adapter_path = "\\_SB_.I2C3",
- },
-};
-
-static struct gpiod_lookup_table lenovo_yoga_tab2_830_1050_int3496_gpios = {
- .dev_id = "intel-int3496",
- .table = {
- GPIO_LOOKUP("INT33FC:02", 1, "mux", GPIO_ACTIVE_LOW),
- GPIO_LOOKUP("INT33FC:02", 24, "id", GPIO_ACTIVE_HIGH),
- { }
- },
-};
-
-#define LENOVO_YOGA_TAB2_830_1050_CODEC_NAME "spi-10WM5102:00"
-
-static struct gpiod_lookup_table lenovo_yoga_tab2_830_1050_codec_gpios = {
- .dev_id = LENOVO_YOGA_TAB2_830_1050_CODEC_NAME,
- .table = {
- GPIO_LOOKUP("gpio_crystalcove", 3, "reset", GPIO_ACTIVE_HIGH),
- GPIO_LOOKUP("INT33FC:01", 23, "wlf,ldoena", GPIO_ACTIVE_HIGH),
- GPIO_LOOKUP("arizona", 2, "wlf,spkvdd-ena", GPIO_ACTIVE_HIGH),
- GPIO_LOOKUP("arizona", 4, "wlf,micd-pol", GPIO_ACTIVE_LOW),
- { }
- },
-};
-
-static struct gpiod_lookup_table * const lenovo_yoga_tab2_830_1050_gpios[] = {
- &lenovo_yoga_tab2_830_1050_int3496_gpios,
- &lenovo_yoga_tab2_830_1050_codec_gpios,
- NULL
-};
-
-static int __init lenovo_yoga_tab2_830_1050_init(void);
-static void lenovo_yoga_tab2_830_1050_exit(void);
-
-struct x86_dev_info lenovo_yoga_tab2_830_1050_info __initdata = {
- .i2c_client_info = lenovo_yoga_tab2_830_1050_i2c_clients,
- /* i2c_client_count gets set by lenovo_yoga_tab2_830_1050_init() */
- .pdev_info = int3496_pdevs,
- .pdev_count = 1,
- .gpiod_lookup_tables = lenovo_yoga_tab2_830_1050_gpios,
- .bat_swnode = &generic_lipo_hv_4v35_battery_node,
- .modules = bq24190_modules,
- .invalid_aei_gpiochip = "INT33FC:02",
- .init = lenovo_yoga_tab2_830_1050_init,
- .exit = lenovo_yoga_tab2_830_1050_exit,
-};
-
-/*
- * The Lenovo Yoga Tablet 2 830 and 1050 (8" vs 10") versions use the same
- * mainboard, but they need some different treatment related to the display:
- * 1. The 830 uses a portrait LCD panel with a landscape touchscreen, requiring
- * the touchscreen driver to adjust the touch-coords to match the LCD.
- * 2. Both use an TI LP8557 LED backlight controller. On the 1050 the LP8557's
- * PWM input is connected to the PMIC's PWM output and everything works fine
- * with the defaults programmed into the LP8557 by the BIOS.
- * But on the 830 the LP8557's PWM input is connected to a PWM output coming
- * from the LCD panel's controller. The Android code has a hack in the i915
- * driver to write the non-standard DSI reg 0x9f with the desired backlight
- * level to set the duty-cycle of the LCD's PWM output.
- *
- * To avoid having to have a similar hack in the mainline kernel the LP8557
- * entry in lenovo_yoga_tab2_830_1050_i2c_clients instead just programs the
- * LP8557 to directly set the level, ignoring the PWM input. This means that
- * the LP8557 i2c_client should only be instantiated on the 830.
- */
-static int __init lenovo_yoga_tab2_830_1050_init_display(void)
-{
- struct gpio_desc *gpiod;
- int ret;
-
- /* Use PMIC GPIO 10 bootstrap pin to differentiate 830 vs 1050 */
- ret = x86_android_tablet_get_gpiod("gpio_crystalcove", 10, &gpiod);
- if (ret)
- return ret;
-
- ret = gpiod_get_value_cansleep(gpiod);
- if (ret) {
- pr_info("detected Lenovo Yoga Tablet 2 1050F/L\n");
- lenovo_yoga_tab2_830_1050_info.i2c_client_count =
- ARRAY_SIZE(lenovo_yoga_tab2_830_1050_i2c_clients) - 1;
- } else {
- pr_info("detected Lenovo Yoga Tablet 2 830F/L\n");
- lenovo_yoga_tab2_830_1050_rmi_pdata.sensor_pdata.axis_align.swap_axes = true;
- lenovo_yoga_tab2_830_1050_rmi_pdata.sensor_pdata.axis_align.flip_y = true;
- lenovo_yoga_tab2_830_1050_info.i2c_client_count =
- ARRAY_SIZE(lenovo_yoga_tab2_830_1050_i2c_clients);
- }
-
- return 0;
-}
-
-/* SUS (INT33FC:02) pin 6 needs to be configured as pmu_clk for the audio codec */
-static const struct pinctrl_map lenovo_yoga_tab2_830_1050_codec_pinctrl_map =
- PIN_MAP_MUX_GROUP(LENOVO_YOGA_TAB2_830_1050_CODEC_NAME, "codec_32khz_clk",
- "INT33FC:02", "pmu_clk2_grp", "pmu_clk");
-
-static struct pinctrl *lenovo_yoga_tab2_830_1050_codec_pinctrl;
-static struct sys_off_handler *lenovo_yoga_tab2_830_1050_sys_off_handler;
-
-static int __init lenovo_yoga_tab2_830_1050_init_codec(void)
-{
- struct device *codec_dev;
- struct pinctrl *pinctrl;
- int ret;
-
- codec_dev = bus_find_device_by_name(&spi_bus_type, NULL,
- LENOVO_YOGA_TAB2_830_1050_CODEC_NAME);
- if (!codec_dev) {
- pr_err("error cannot find %s device\n", LENOVO_YOGA_TAB2_830_1050_CODEC_NAME);
- return -ENODEV;
- }
-
- ret = pinctrl_register_mappings(&lenovo_yoga_tab2_830_1050_codec_pinctrl_map, 1);
- if (ret)
- goto err_put_device;
-
- pinctrl = pinctrl_get_select(codec_dev, "codec_32khz_clk");
- if (IS_ERR(pinctrl)) {
- ret = dev_err_probe(codec_dev, PTR_ERR(pinctrl), "selecting codec_32khz_clk\n");
- goto err_unregister_mappings;
- }
-
- /* We're done with the codec_dev now */
- put_device(codec_dev);
-
- lenovo_yoga_tab2_830_1050_codec_pinctrl = pinctrl;
- return 0;
-
-err_unregister_mappings:
- pinctrl_unregister_mappings(&lenovo_yoga_tab2_830_1050_codec_pinctrl_map);
-err_put_device:
- put_device(codec_dev);
- return ret;
-}
-
-/*
- * These tablet's DSDT does not set acpi_gbl_reduced_hardware, so acpi_power_off
- * gets used as pm_power_off handler. This causes "poweroff" on these tablets
- * to hang hard. Requiring pressing the powerbutton for 30 seconds *twice*
- * followed by a normal 3 second press to recover. Avoid this by doing an EFI
- * poweroff instead.
- */
-static int lenovo_yoga_tab2_830_1050_power_off(struct sys_off_data *data)
-{
- efi.reset_system(EFI_RESET_SHUTDOWN, EFI_SUCCESS, 0, NULL);
-
- return NOTIFY_DONE;
-}
-
-static int __init lenovo_yoga_tab2_830_1050_init(void)
-{
- int ret;
-
- ret = lenovo_yoga_tab2_830_1050_init_display();
- if (ret)
- return ret;
-
- 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 void lenovo_yoga_tab2_830_1050_exit(void)
-{
- unregister_sys_off_handler(lenovo_yoga_tab2_830_1050_sys_off_handler);
-
- if (lenovo_yoga_tab2_830_1050_codec_pinctrl) {
- pinctrl_put(lenovo_yoga_tab2_830_1050_codec_pinctrl);
- pinctrl_unregister_mappings(&lenovo_yoga_tab2_830_1050_codec_pinctrl_map);
- }
-}
-
-/* Lenovo Yoga Tab 3 Pro YT3-X90F */
-
-/*
- * There are 2 batteries, with 2 bq27500 fuel-gauges and 2 bq25892 chargers,
- * "bq25890-charger-1" is instantiated from: drivers/i2c/busses/i2c-cht-wc.c.
- */
-static const char * const lenovo_yt3_bq25892_0_suppliers[] = { "cht_wcove_pwrsrc" };
-static const char * const bq25890_1_psy[] = { "bq25890-charger-1" };
-
-static const struct property_entry fg_bq25890_1_supply_props[] = {
- PROPERTY_ENTRY_STRING_ARRAY("supplied-from", bq25890_1_psy),
- { }
-};
-
-static const struct software_node fg_bq25890_1_supply_node = {
- .properties = fg_bq25890_1_supply_props,
-};
-
-/* bq25892 charger settings for the flat lipo battery behind the screen */
-static const struct property_entry lenovo_yt3_bq25892_0_props[] = {
- PROPERTY_ENTRY_STRING_ARRAY("supplied-from", lenovo_yt3_bq25892_0_suppliers),
- PROPERTY_ENTRY_STRING("linux,power-supply-name", "bq25892-second-chrg"),
- PROPERTY_ENTRY_U32("linux,iinlim-percentage", 40),
- PROPERTY_ENTRY_BOOL("linux,skip-reset"),
- /* Values taken from Android Factory Image */
- PROPERTY_ENTRY_U32("ti,charge-current", 2048000),
- 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_U32("ti,boost-voltage", 4998000),
- PROPERTY_ENTRY_U32("ti,boost-max-current", 500000),
- PROPERTY_ENTRY_BOOL("ti,use-ilim-pin"),
- { }
-};
-
-static const struct software_node lenovo_yt3_bq25892_0_node = {
- .properties = lenovo_yt3_bq25892_0_props,
-};
-
-static const struct x86_i2c_client_info lenovo_yt3_i2c_clients[] __initconst = {
- {
- /* bq27500 fuel-gauge for the flat lipo battery behind the screen */
- .board_info = {
- .type = "bq27500",
- .addr = 0x55,
- .dev_name = "bq27500_0",
- .swnode = &fg_bq25890_supply_node,
- },
- .adapter_path = "\\_SB_.PCI0.I2C1",
- }, {
- /* bq25892 charger for the flat lipo battery behind the screen */
- .board_info = {
- .type = "bq25892",
- .addr = 0x6b,
- .dev_name = "bq25892_0",
- .swnode = &lenovo_yt3_bq25892_0_node,
- },
- .adapter_path = "\\_SB_.PCI0.I2C1",
- .irq_data = {
- .type = X86_ACPI_IRQ_TYPE_GPIOINT,
- .chip = "INT33FF:01",
- .index = 5,
- .trigger = ACPI_EDGE_SENSITIVE,
- .polarity = ACPI_ACTIVE_LOW,
- },
- }, {
- /* bq27500 fuel-gauge for the round li-ion cells in the hinge */
- .board_info = {
- .type = "bq27500",
- .addr = 0x55,
- .dev_name = "bq27500_1",
- .swnode = &fg_bq25890_1_supply_node,
- },
- .adapter_path = "\\_SB_.PCI0.I2C2",
- }
-};
-
-static int __init lenovo_yt3_init(void)
-{
- struct gpio_desc *gpiod;
- int ret;
-
- /*
- * The "bq25892_0" charger IC has its /CE (Charge-Enable) and OTG pins
- * connected to GPIOs, rather then having them hardwired to the correct
- * values as is normally done.
- *
- * The bq25890_charger driver controls these through I2C, but this only
- * works if not overridden by the pins. Set these pins here:
- * 1. Set /CE to 0 to allow charging.
- * 2. Set OTG to 0 disable V5 boost output since the 5V boost output of
- * the main "bq25892_1" charger is used when necessary.
- */
-
- /* /CE pin */
- ret = x86_android_tablet_get_gpiod("INT33FF:02", 22, &gpiod);
- if (ret < 0)
- return ret;
-
- /*
- * The gpio_desc returned by x86_android_tablet_get_gpiod() is a "raw"
- * gpio_desc, that is there is no way to pass lookup-flags like
- * GPIO_ACTIVE_LOW. Set the GPIO to 0 here to enable charging since
- * the /CE pin is active-low, but not marked as such in the gpio_desc.
- */
- gpiod_set_value(gpiod, 0);
-
- /* OTG pin */
- ret = x86_android_tablet_get_gpiod("INT33FF:03", 19, &gpiod);
- if (ret < 0)
- return ret;
-
- gpiod_set_value(gpiod, 0);
-
- return 0;
-}
-
-const struct x86_dev_info lenovo_yt3_info __initconst = {
- .i2c_client_info = lenovo_yt3_i2c_clients,
- .i2c_client_count = ARRAY_SIZE(lenovo_yt3_i2c_clients),
- .init = lenovo_yt3_init,
-};
-
/* Medion Lifetab S10346 tablets have an Android factory img with everything hardcoded */
static const char * const medion_lifetab_s10346_accel_mount_matrix[] = {
"0", "1", "0",
projects / linux.git / commitdiff