niansa-misc/linux
1
0
Fork 0
mirror of synced 2025-03-06 20:59:54 +01:00
Code Issues Projects Releases Packages Wiki Activity

platform/x86: x86-android-tablets: Add touchscreen support for Lenovo Yoga Tab 3 Pro YT3-X90F

Browse source 
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
This commit is contained in:
Hans de Goede 2023-02-21 22:52:58 +01:00
parent 772cbba5a8
commit 9b1d2662b8
1 changed files with 46 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

46
drivers/platform/x86/x86-android-tablets/lenovo.c
View file

@ -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,
};