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Commitaf503716ac("i2c: core: report OF style module alias for devices registered via OF") fixed how the I2C core reports the module alias when devices are registered via OF. But the atmel_mxt_ts driver only has an "atmel,maxtouch" compatible in its OF device ID table, so if a Device Tree is using a different one, autoload won't be working for the module (the matching works because the I2C device ID table is used as a fallback). So add compatible strings for each of the entries in the I2C device table. Fixes:af503716ac("i2c: core: report OF style module alias for devices registered via OF") Reported-by: Enric Balletbo i Serra <enric.balletbo@collabora.com> Signed-off-by: Javier Martinez Canillas <javierm@redhat.com> Tested-by: Enric Balletbo i Serra <enric.balletbo@collabora.com> Reviewed-by: Rob Herring <robh@kernel.org> [dtor: document which compatibles are deprecated and should not be used] Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
42 lines
1.2 KiB
Plaintext
42 lines
1.2 KiB
Plaintext
Atmel maXTouch touchscreen/touchpad
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Required properties:
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- compatible:
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atmel,maxtouch
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The following compatibles have been used in various products but are
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deprecated:
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atmel,qt602240_ts
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atmel,atmel_mxt_ts
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atmel,atmel_mxt_tp
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atmel,mXT224
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- reg: The I2C address of the device
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- interrupts: The sink for the touchpad's IRQ output
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See ../interrupt-controller/interrupts.txt
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Optional properties for main touchpad device:
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- linux,gpio-keymap: When enabled, the SPT_GPIOPWN_T19 object sends messages
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on GPIO bit changes. An array of up to 8 entries can be provided
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indicating the Linux keycode mapped to each bit of the status byte,
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starting at the LSB. Linux keycodes are defined in
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<dt-bindings/input/input.h>.
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Note: the numbering of the GPIOs and the bit they start at varies between
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maXTouch devices. You must either refer to the documentation, or
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experiment to determine which bit corresponds to which input. Use
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KEY_RESERVED for unused padding values.
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- reset-gpios: GPIO specifier for the touchscreen's reset pin (active low)
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Example:
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touch@4b {
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compatible = "atmel,maxtouch";
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reg = <0x4b>;
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interrupt-parent = <&gpio>;
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interrupts = <TEGRA_GPIO(W, 3) IRQ_TYPE_LEVEL_LOW>;
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};
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