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This patch adds a support for ADS7846 touchscreen driver. The basic functionality was tested, x_plate_ohms and y_plate_ohms were physically measured. The value pressure_max was empirically set to match the measured range, which is affected by x_plate_ohms and ADS samples. The value of keep_vref_on should be set. A tested model (T-Mobile MDA Compact PM10A) doesn't seem to use Vref pin as the input from an external source. On this model the unset keep_vref_on cause high jitter of measured values. SPI framing pin (gpio_cs) must be used in GPIO mode due to an incompatible autoframing of PXA27x controller and ADS7846 device. Signed-off-by: Petr Cvek <petr.cvek@tul.cz> Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr> |
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| .. | ||
| addr-map.h | ||
| audio.h | ||
| balloon3.h | ||
| bitfield.h | ||
| corgi.h | ||
| dma.h | ||
| eseries-gpio.h | ||
| generic.h | ||
| hardware.h | ||
| hx4700.h | ||
| io.h | ||
| irqs.h | ||
| lubbock.h | ||
| magician.h | ||
| mainstone.h | ||
| mfp.h | ||
| mtd-xip.h | ||
| palmld.h | ||
| palmtc.h | ||
| palmtx.h | ||
| poodle.h | ||
| pxa2xx-regs.h | ||
| pxa3xx-regs.h | ||
| pxa25x-udc.h | ||
| regs-ac97.h | ||
| regs-lcd.h | ||
| regs-ost.h | ||
| regs-uart.h | ||
| reset.h | ||
| smemc.h | ||
| spitz.h | ||
| tosa.h | ||
| trizeps4.h | ||
| uncompress.h | ||
| vpac270.h | ||
| z2.h | ||