Commit 3197704c authored by Robert Dolca's avatar Robert Dolca Committed by Dmitry Torokhov

Input: add driver for Silead touchscreens

This driver adds support for Silead touchscreens. It has been tested
with GSL1680 and GSL3680 touch panels.

It supports ACPI and device tree enumeration. Screen resolution,
the maximum number of fingers supported and firmware name are
configurable.
Signed-off-by: default avatarRobert Dolca <robert.dolca@intel.com>
Signed-off-by: default avatarDaniel Jansen <djaniboe@gmail.com>
Signed-off-by: default avatarHans de Goede <hdegoede@redhat.com>
Signed-off-by: default avatarDmitry Torokhov <dmitry.torokhov@gmail.com>
parent 014420fe
* GSL 1680 touchscreen controller
Required properties:
- compatible : "silead,gsl1680"
- reg : I2C slave address of the chip (0x40)
- interrupt-parent : a phandle pointing to the interrupt controller
serving the interrupt for this chip
- interrupts : interrupt specification for the gsl1680 interrupt
- power-gpios : Specification for the pin connected to the gsl1680's
shutdown input. This needs to be driven high to take the
gsl1680 out of its low power state
- touchscreen-size-x : See touchscreen.txt
- touchscreen-size-y : See touchscreen.txt
Optional properties:
- touchscreen-inverted-x : See touchscreen.txt
- touchscreen-inverted-y : See touchscreen.txt
- touchscreen-swapped-x-y : See touchscreen.txt
- silead,max-fingers : maximum number of fingers the touchscreen can detect
Example:
i2c@00000000 {
gsl1680: touchscreen@40 {
compatible = "silead,gsl1680";
reg = <0x40>;
interrupt-parent = <&pio>;
interrupts = <6 11 IRQ_TYPE_EDGE_FALLING>;
power-gpios = <&pio 1 3 GPIO_ACTIVE_HIGH>;
touchscreen-size-x = <480>;
touchscreen-size-y = <800>;
touchscreen-inverted-x;
touchscreen-swapped-x-y;
silead,max-fingers = <5>;
};
};
......@@ -1059,6 +1059,18 @@ config TOUCHSCREEN_RM_TS
To compile this driver as a module, choose M here: the
module will be called raydium_i2c_ts.
config TOUCHSCREEN_SILEAD
tristate "Silead I2C touchscreen"
depends on I2C
help
Say Y here if you have the Silead touchscreen connected to
your system.
If unsure, say N.
To compile this driver as a module, choose M here: the
module will be called silead.
config TOUCHSCREEN_ST1232
tristate "Sitronix ST1232 touchscreen controllers"
depends on I2C
......
......@@ -64,6 +64,7 @@ obj-$(CONFIG_TOUCHSCREEN_PENMOUNT) += penmount.o
obj-$(CONFIG_TOUCHSCREEN_PIXCIR) += pixcir_i2c_ts.o
obj-$(CONFIG_TOUCHSCREEN_RM_TS) += raydium_i2c_ts.o
obj-$(CONFIG_TOUCHSCREEN_S3C2410) += s3c2410_ts.o
obj-$(CONFIG_TOUCHSCREEN_SILEAD) += silead.o
obj-$(CONFIG_TOUCHSCREEN_ST1232) += st1232.o
obj-$(CONFIG_TOUCHSCREEN_STMPE) += stmpe-ts.o
obj-$(CONFIG_TOUCHSCREEN_SUN4I) += sun4i-ts.o
......
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