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60 lines
1.6 KiB
60 lines
1.6 KiB
TI-NSPIRE Keypad |
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Required properties: |
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- compatible: Compatible property value should be "ti,nspire-keypad". |
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- reg: Physical base address of the peripheral and length of memory mapped |
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region. |
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- interrupts: The interrupt number for the peripheral. |
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- scan-interval: How often to scan in us. Based on a APB speed of 33MHz, the |
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maximum and minimum delay time is ~2000us and ~500us respectively |
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- row-delay: How long to wait before scanning each row. |
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- clocks: The clock this peripheral is attached to. |
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- linux,keymap: The keymap to use |
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(see Documentation/devicetree/bindings/input/matrix-keymap.txt) |
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Optional properties: |
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- active-low: Specify that the keypad is active low (i.e. logical low signifies |
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a key press). |
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Example: |
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input { |
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compatible = "ti,nspire-keypad"; |
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reg = <0x900E0000 0x1000>; |
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interrupts = <16>; |
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scan-interval = <1000>; |
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row-delay = <200>; |
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clocks = <&apb_pclk>; |
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linux,keymap = < |
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0x0000001c 0x0001001c 0x00040039 |
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0x0005002c 0x00060015 0x0007000b |
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0x0008000f 0x0100002d 0x01010011 |
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0x0102002f 0x01030004 0x01040016 |
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0x01050014 0x0106001f 0x01070002 |
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0x010a006a 0x02000013 0x02010010 |
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0x02020019 0x02030007 0x02040018 |
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0x02050031 0x02060032 0x02070005 |
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0x02080028 0x0209006c 0x03000026 |
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0x03010025 0x03020024 0x0303000a |
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0x03040017 0x03050023 0x03060022 |
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0x03070008 0x03080035 0x03090069 |
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0x04000021 0x04010012 0x04020020 |
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0x0404002e 0x04050030 0x0406001e |
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0x0407000d 0x04080037 0x04090067 |
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0x05010038 0x0502000c 0x0503001b |
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0x05040034 0x0505001a 0x05060006 |
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0x05080027 0x0509000e 0x050a006f |
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0x0600002b 0x0602004e 0x06030068 |
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0x06040003 0x0605006d 0x06060009 |
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0x06070001 0x0609000f 0x0708002a |
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0x0709001d 0x070a0033 >; |
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};
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