projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 9a436d52 HC |
1 | * Freescale i.MX6UL Touch Controller |
| 2 | ||
| 3 | Required properties: | |
| 4 | - compatible: must be "fsl,imx6ul-tsc". | |
| 5 | - reg: this touch controller address and the ADC2 address. | |
| 6 | - interrupts: the interrupt of this touch controller and ADC2. | |
| 7 | - clocks: the root clock of touch controller and ADC2. | |
| 8 | - clock-names; must be "tsc" and "adc". | |
| 9 | - xnur-gpio: the X- gpio this controller connect to. | |
| 10 | This xnur-gpio returns to low once the finger leave the touch screen (The | |
| 11 | last touch event the touch controller capture). | |
| 12 | ||
| 13 | Optional properties: | |
| 14 | - measure-delay-time: the value of measure delay time. | |
| 15 | Before X-axis or Y-axis measurement, the screen need some time before | |
| 16 | even potential distribution ready. | |
| 17 | This value depends on the touch screen. | |
| 18 | - pre-charge-time: the touch screen need some time to precharge. | |
| 19 | This value depends on the touch screen. | |
| 20 | ||
| 21 | Example: | |
| 22 | tsc: tsc@02040000 { | |
| 23 | compatible = "fsl,imx6ul-tsc"; | |
| 24 | reg = <0x02040000 0x4000>, <0x0219c000 0x4000>; | |
| 25 | interrupts = <GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>, | |
| 26 | <GIC_SPI 101 IRQ_TYPE_LEVEL_HIGH>; | |
| 27 | clocks = <&clks IMX6UL_CLK_IPG>, | |
| 28 | <&clks IMX6UL_CLK_ADC2>; | |
| 29 | clock-names = "tsc", "adc"; | |
| 30 | pinctrl-names = "default"; | |
| 31 | pinctrl-0 = <&pinctrl_tsc>; | |
| 32 | xnur-gpio = <&gpio1 3 GPIO_ACTIVE_LOW>; | |
| 33 | measure-delay-time = <0xfff>; | |
| 34 | pre-charge-time = <0xffff>; | |
| 35 | status = "okay"; | |
| 36 | }; |