61 lines
2.3 KiB
Plaintext
61 lines
2.3 KiB
Plaintext
* Marvell PXA Keypad controller
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Required Properties
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- compatible : should be "marvell,pxa27x-keypad"
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- reg : Address and length of the register set for the device
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- interrupts : The interrupt for the keypad controller
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- marvell,debounce-interval : How long time the key will be
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recognized when it is pressed. It is a u32 value, and bit[31:16]
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is debounce interval for direct key and bit[15:0] is debounce
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interval for matrix key. The value is in binary number of 2ms
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Optional Properties For Matrix Keyes
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Please refer to matrix-keymap.txt
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Optional Properties for Direct Keyes
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- marvell,direct-key-count : How many direct keyes are used.
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- marvell,direct-key-mask : The mask indicates which keyes
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are used. If bit[X] of the mask is set, the direct key X
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is used.
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- marvell,direct-key-low-active : Direct key status register
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tells the level of pins that connects to the direct keyes.
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When this property is set, it means that when the pin level
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is low, the key is pressed(active).
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- marvell,direct-key-map : It is a u16 array. Each item indicates
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the linux key-code for the direct key.
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Optional Properties For Rotary
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- marvell,rotary0 : It is a u32 value. Bit[31:16] is the
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linux key-code for rotary up. Bit[15:0] is the linux key-code
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for rotary down. It is for rotary 0.
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- marvell,rotary1 : Same as marvell,rotary0. It is for rotary 1.
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- marvell,rotary-rel-key : When rotary is used for relative axes
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in the device, the value indicates the key-code for relative
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axes measurement in the device. It is a u32 value. Bit[31:16]
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is for rotary 1, and Bit[15:0] is for rotary 0.
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Examples:
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keypad: keypad@d4012000 {
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keypad,num-rows = <3>;
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keypad,num-columns = <5>;
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linux,keymap = <0x0000000e /* KEY_BACKSPACE */
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0x0001006b /* KEY_END */
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0x00020061 /* KEY_RIGHTCTRL */
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0x0003000b /* KEY_0 */
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0x00040002 /* KEY_1 */
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0x0100008b /* KEY_MENU */
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0x01010066 /* KEY_HOME */
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0x010200e7 /* KEY_SEND */
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0x01030009 /* KEY_8 */
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0x0104000a /* KEY_9 */
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0x02000160 /* KEY_OK */
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0x02010003 /* KEY_2 */
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0x02020004 /* KEY_3 */
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0x02030005 /* KEY_4 */
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0x02040006>; /* KEY_5 */
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marvell,rotary0 = <0x006c0067>; /* KEY_UP & KEY_DOWN */
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marvell,direct-key-count = <1>;
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marvell,direct-key-map = <0x001c>;
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marvell,debounce-interval = <0x001e001e>;
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};
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