mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-26 19:00:25 +00:00
Input: goodix - add device tree support
This change adds device tree support and binding information for Goodix GT9xx series touchscreen controller. It also adds support for 5-finger chips, like GT911 and GT912, which can be found on ARM tablets, such as Wexler TAB7200 and MSI Primo73. Datasheets can be found here: https://drive.google.com/folderview?id=0BxCVOQS3ZymGfmJyY2RKbE5XbVlKNlktVTlwV0lxNEdxd2dzeWZER094cmJPVnMxN1F0Yzg&usp=sharing Signed-off-by: Aleksei Mamlin <mamlinav@gmail.com> Reviewed-by: Bastien Nocera <hadess@hadess.net> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This commit is contained in:
parent
a7ac7c95d4
commit
771d8f1b17
4 changed files with 53 additions and 3 deletions
|
@ -0,0 +1,29 @@
|
|||
Device tree bindings for Goodix GT9xx series touchscreen controller
|
||||
|
||||
Required properties:
|
||||
|
||||
- compatible : Should be "goodix,gt911"
|
||||
or "goodix,gt9110"
|
||||
or "goodix,gt912"
|
||||
or "goodix,gt927"
|
||||
or "goodix,gt9271"
|
||||
or "goodix,gt928"
|
||||
or "goodix,gt967"
|
||||
- reg : I2C address of the chip. Should be 0x5d or 0x14
|
||||
- interrupt-parent : Interrupt controller to which the chip is connected
|
||||
- interrupts : Interrupt to which the chip is connected
|
||||
|
||||
Example:
|
||||
|
||||
i2c@00000000 {
|
||||
/* ... */
|
||||
|
||||
gt928@5d {
|
||||
compatible = "goodix,gt928";
|
||||
reg = <0x5d>;
|
||||
interrupt-parent = <&gpio>;
|
||||
interrupts = <0 0>;
|
||||
};
|
||||
|
||||
/* ... */
|
||||
};
|
|
@ -65,6 +65,7 @@ gef GE Fanuc Intelligent Platforms Embedded Systems, Inc.
|
|||
geniatech Geniatech, Inc.
|
||||
globalscale Globalscale Technologies, Inc.
|
||||
gmt Global Mixed-mode Technology, Inc.
|
||||
goodix Shenzhen Huiding Technology Co., Ltd.
|
||||
google Google, Inc.
|
||||
gumstix Gumstix, Inc.
|
||||
gw Gateworks Corporation
|
||||
|
|
|
@ -297,11 +297,12 @@ config TOUCHSCREEN_FUJITSU
|
|||
|
||||
config TOUCHSCREEN_GOODIX
|
||||
tristate "Goodix I2C touchscreen"
|
||||
depends on I2C && ACPI
|
||||
depends on I2C
|
||||
help
|
||||
Say Y here if you have the Goodix touchscreen (such as one
|
||||
installed in Onda v975w tablets) connected to your
|
||||
system.
|
||||
system. It also supports 5-finger chip models, which can be
|
||||
found on ARM tablets, like Wexler TAB7200 and MSI Primo73.
|
||||
|
||||
If unsure, say N.
|
||||
|
||||
|
|
|
@ -23,6 +23,8 @@
|
|||
#include <linux/irq.h>
|
||||
#include <linux/interrupt.h>
|
||||
#include <linux/slab.h>
|
||||
#include <linux/acpi.h>
|
||||
#include <linux/of.h>
|
||||
#include <asm/unaligned.h>
|
||||
|
||||
struct goodix_ts_data {
|
||||
|
@ -375,11 +377,27 @@ static const struct i2c_device_id goodix_ts_id[] = {
|
|||
{ }
|
||||
};
|
||||
|
||||
#ifdef CONFIG_ACPI
|
||||
static const struct acpi_device_id goodix_acpi_match[] = {
|
||||
{ "GDIX1001", 0 },
|
||||
{ }
|
||||
};
|
||||
MODULE_DEVICE_TABLE(acpi, goodix_acpi_match);
|
||||
#endif
|
||||
|
||||
#ifdef CONFIG_OF
|
||||
static const struct of_device_id goodix_of_match[] = {
|
||||
{ .compatible = "goodix,gt911" },
|
||||
{ .compatible = "goodix,gt9110" },
|
||||
{ .compatible = "goodix,gt912" },
|
||||
{ .compatible = "goodix,gt927" },
|
||||
{ .compatible = "goodix,gt9271" },
|
||||
{ .compatible = "goodix,gt928" },
|
||||
{ .compatible = "goodix,gt967" },
|
||||
{ }
|
||||
};
|
||||
MODULE_DEVICE_TABLE(of, goodix_of_match);
|
||||
#endif
|
||||
|
||||
static struct i2c_driver goodix_ts_driver = {
|
||||
.probe = goodix_ts_probe,
|
||||
|
@ -387,7 +405,8 @@ static struct i2c_driver goodix_ts_driver = {
|
|||
.driver = {
|
||||
.name = "Goodix-TS",
|
||||
.owner = THIS_MODULE,
|
||||
.acpi_match_table = goodix_acpi_match,
|
||||
.acpi_match_table = ACPI_PTR(goodix_acpi_match),
|
||||
.of_match_table = of_match_ptr(goodix_of_match),
|
||||
},
|
||||
};
|
||||
module_i2c_driver(goodix_ts_driver);
|
||||
|
|
Loading…
Reference in a new issue