mirrors
/
linux-stable
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
1
0
Fork 0
Code Issues Releases Wiki Activity

platform/x86: x86-android-tablets: Add Wacom digitizer info for Lenovo Yoga Book 

The Lenovo Yoga Book has a wacom digitizer in its keyboard half,
add the necessary info to instantiate an i2c_client for the digitizer.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20230416212841.311152-2-hdegoede@redhat.com
This commit is contained in:
Hans de Goede 2023-04-16 23:28:39 +02:00
parent 02377e983e
commit 95b829f89d
1 changed files with 35 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

35
drivers/platform/x86/x86-android-tablets/lenovo.c
View File

@ -40,6 +40,16 @@ static struct lp855x_platform_data lenovo_lp8557_pdata = {
/* Lenovo Yoga Book X90F / X90L's Android factory img has everything hardcoded */
static const struct property_entry lenovo_yb1_x90_wacom_props[] = {
PROPERTY_ENTRY_U32("hid-descr-addr", 0x0001),
PROPERTY_ENTRY_U32("post-reset-deassert-delay-ms", 150),
{ }
};
static const struct software_node lenovo_yb1_x90_wacom_node = {
.properties = lenovo_yb1_x90_wacom_props,
};
/*
* The HiDeep IST940E touchscreen comes up in I2C-HID mode. The native protocol
* reports ABS_MT_PRESSURE and ABS_MT_TOUCH_MAJOR which are not reported in HID
@ -86,6 +96,22 @@ static const struct x86_i2c_client_info lenovo_yb1_x90_i2c_clients[] __initconst
.trigger = ACPI_EDGE_SENSITIVE,
.polarity = ACPI_ACTIVE_LOW,
},
}, {
/* Wacom Digitizer in keyboard half */
.board_info = {
.type = "hid-over-i2c",
.addr = 0x09,
.dev_name = "wacom",
.swnode = &lenovo_yb1_x90_wacom_node,
},
.adapter_path = "\\_SB_.PCI0.I2C4",
.irq_data = {
.type = X86_ACPI_IRQ_TYPE_GPIOINT,
.chip = "INT33FF:01",
.index = 49,
.trigger = ACPI_LEVEL_SENSITIVE,
.polarity = ACPI_ACTIVE_LOW,
},
}, {
/* LP8557 Backlight controller */
.board_info = {
@ -131,9 +157,18 @@ static struct gpiod_lookup_table lenovo_yb1_x90_hideep_gpios = {
},
};
static struct gpiod_lookup_table lenovo_yb1_x90_wacom_gpios = {
.dev_id = "i2c-wacom",
.table = {
GPIO_LOOKUP("INT33FF:00", 82, "reset", GPIO_ACTIVE_LOW),
{ }
},
};
static struct gpiod_lookup_table * const lenovo_yb1_x90_gpios[] = {
&lenovo_yb1_x90_hideep_gpios,
&lenovo_yb1_x90_goodix_gpios,
&lenovo_yb1_x90_wacom_gpios,
NULL
};