diff options
| author | Hans de Goede <hdegoede@redhat.com> | 2023-02-21 22:52:58 +0100 |
|---|---|---|
| committer | Hans de Goede <hdegoede@redhat.com> | 2023-03-07 12:08:31 +0100 |
| commit | 9b1d2662b8c586eb10cb939c7ae2c25bb36d2b61 (patch) | |
| tree | fcb377815c11a5a7456c9f06e8ea0496bd72dc95 /drivers/platform/x86/x86-android-tablets | |
| parent | 772cbba5a877eb7c528f3659415373c40e48a057 (diff) | |
platform/x86: x86-android-tablets: Add touchscreen support for Lenovo Yoga Tab 3 Pro YT3-X90F
Add the necessary info to instantiate the I2C device for the touchscreen
on Lenovo Yoga Tab 3 Pro YT3-X90F tablets.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20230301092331.7038-12-hdegoede@redhat.com
Diffstat (limited to 'drivers/platform/x86/x86-android-tablets')
| -rw-r--r-- | drivers/platform/x86/x86-android-tablets/lenovo.c | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/drivers/platform/x86/x86-android-tablets/lenovo.c b/drivers/platform/x86/x86-android-tablets/lenovo.c index 290de07d8aa0..4ba4b1e8c7d0 100644 --- a/drivers/platform/x86/x86-android-tablets/lenovo.c +++ b/drivers/platform/x86/x86-android-tablets/lenovo.c @@ -12,6 +12,7 @@ #include <linux/efi.h> #include <linux/gpio/machine.h> +#include <linux/mfd/intel_soc_pmic.h> #include <linux/pinctrl/consumer.h> #include <linux/pinctrl/machine.h> #include <linux/platform_data/lp855x.h> @@ -334,6 +335,17 @@ static const struct software_node lenovo_yt3_bq25892_0_node = { .properties = lenovo_yt3_bq25892_0_props, }; +static const struct property_entry lenovo_yt3_hideep_ts_props[] = { + PROPERTY_ENTRY_U32("touchscreen-size-x", 1600), + PROPERTY_ENTRY_U32("touchscreen-size-y", 2560), + PROPERTY_ENTRY_U32("touchscreen-max-pressure", 255), + { } +}; + +static const struct software_node lenovo_yt3_hideep_ts_node = { + .properties = lenovo_yt3_hideep_ts_props, +}; + static const struct x86_i2c_client_info lenovo_yt3_i2c_clients[] __initconst = { { /* bq27500 fuel-gauge for the flat lipo battery behind the screen */ @@ -369,6 +381,22 @@ static const struct x86_i2c_client_info lenovo_yt3_i2c_clients[] __initconst = { .swnode = &fg_bq25890_1_supply_node, }, .adapter_path = "\\_SB_.PCI0.I2C2", + }, { + /* HiDeep IST520E Touchscreen */ + .board_info = { + .type = "hideep_ts", + .addr = 0x6c, + .dev_name = "hideep_ts", + .swnode = &lenovo_yt3_hideep_ts_node, + }, + .adapter_path = "\\_SB_.PCI0.I2C6", + .irq_data = { + .type = X86_ACPI_IRQ_TYPE_GPIOINT, + .chip = "INT33FF:03", + .index = 77, + .trigger = ACPI_LEVEL_SENSITIVE, + .polarity = ACPI_ACTIVE_LOW, + }, } }; @@ -409,11 +437,29 @@ static int __init lenovo_yt3_init(void) gpiod_set_value(gpiod, 0); + /* Enable the regulators used by the touchscreen */ + intel_soc_pmic_exec_mipi_pmic_seq_element(0x6e, 0x9b, 0x02, 0xff); + intel_soc_pmic_exec_mipi_pmic_seq_element(0x6e, 0xa0, 0x02, 0xff); + return 0; } +static struct gpiod_lookup_table lenovo_yt3_hideep_gpios = { + .dev_id = "i2c-hideep_ts", + .table = { + GPIO_LOOKUP("INT33FF:00", 7, "reset", GPIO_ACTIVE_LOW), + { } + }, +}; + +static struct gpiod_lookup_table * const lenovo_yt3_gpios[] = { + &lenovo_yt3_hideep_gpios, + NULL +}; + 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), + .gpiod_lookup_tables = lenovo_yt3_gpios, .init = lenovo_yt3_init, }; |