projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| a748941c | 1 | * Texas Instruments tsc2004 and tsc2005 touchscreen controllers |
| a38cfebb SR |
2 | |
| 3 | Required properties: | |
| a748941c MW |
4 | - compatible : "ti,tsc2004" or "ti,tsc2005" |
| 5 | - reg : Device address | |
| a38cfebb | 6 | - interrupts : IRQ specifier |
| a748941c MW |
7 | - spi-max-frequency : Maximum SPI clocking speed of the device |
| 8 | (for tsc2005) | |
| a38cfebb SR |
9 | |
| 10 | Optional properties: | |
| a748941c MW |
11 | - vio-supply : Regulator specifier |
| 12 | - reset-gpios : GPIO specifier for the controller reset line | |
| a38cfebb SR |
13 | - ti,x-plate-ohms : integer, resistance of the touchscreen's X plates |
| 14 | in ohm (defaults to 280) | |
| 15 | - ti,esd-recovery-timeout-ms : integer, if the touchscreen does not respond after | |
| 16 | the configured time (in milli seconds), the driver | |
| 17 | will reset it. This is disabled by default. | |
| 18 | - properties defined in touchscreen.txt | |
| 19 | ||
| 20 | Example: | |
| 21 | ||
| a748941c MW |
22 | &i2c3 { |
| 23 | tsc2004@48 { | |
| 24 | compatible = "ti,tsc2004"; | |
| 25 | reg = <0x48>; | |
| 26 | vio-supply = <&vio>; | |
| 27 | ||
| 28 | reset-gpios = <&gpio4 8 GPIO_ACTIVE_HIGH>; | |
| 29 | interrupts-extended = <&gpio1 27 IRQ_TYPE_EDGE_RISING>; | |
| 30 | ||
| 31 | touchscreen-fuzz-x = <4>; | |
| 32 | touchscreen-fuzz-y = <7>; | |
| 33 | touchscreen-fuzz-pressure = <2>; | |
| 34 | touchscreen-size-x = <4096>; | |
| 35 | touchscreen-size-y = <4096>; | |
| 36 | touchscreen-max-pressure = <2048>; | |
| 37 | ||
| 38 | ti,x-plate-ohms = <280>; | |
| 39 | ti,esd-recovery-timeout-ms = <8000>; | |
| 40 | }; | |
| 41 | } | |
| 42 | ||
| a38cfebb SR |
43 | &mcspi1 { |
| 44 | tsc2005@0 { | |
| 45 | compatible = "ti,tsc2005"; | |
| 46 | spi-max-frequency = <6000000>; | |
| 47 | reg = <0>; | |
| 48 | ||
| 49 | vio-supply = <&vio>; | |
| 50 | ||
| 51 | reset-gpios = <&gpio4 8 GPIO_ACTIVE_HIGH>; /* 104 */ | |
| 52 | interrupts-extended = <&gpio4 4 IRQ_TYPE_EDGE_RISING>; /* 100 */ | |
| 53 | ||
| 54 | touchscreen-fuzz-x = <4>; | |
| 55 | touchscreen-fuzz-y = <7>; | |
| 56 | touchscreen-fuzz-pressure = <2>; | |
| 8770d089 PM |
57 | touchscreen-size-x = <4096>; |
| 58 | touchscreen-size-y = <4096>; | |
| a38cfebb SR |
59 | touchscreen-max-pressure = <2048>; |
| 60 | ||
| 61 | ti,x-plate-ohms = <280>; | |
| 62 | ti,esd-recovery-timeout-ms = <8000>; | |
| 63 | }; | |
| 64 | } |