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The touch controller generates a negative pulse of ~ 200us lenght.
The falling edge is a bit slower and noisier due to the used level
translation in HW. Change to trigger the interrupt on the rising edge
to lower the possibilty of triggering two interrupts due to noise.
Related-to: ELB-5747
Signed-off-by: Max Krummenacher <max.krummenacher@toradex.com>
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The Riverdi 10" Capacitive Touch display is brightest when the PWM
duty cycle is at 100%, i.e. always 1. Thus keep the PWM polarity
at normal.
That way 0: backlight off, 1: backlight dark, 7: backlight bright.
Signed-off-by: Max Krummenacher <max.krummenacher@toradex.com>
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With the current timings the series production display no longer sync
on the provided signal. The display stays greyish.
Riverdi proposed front/back-porch timing changes. With this the display
work.
Related-to: ELB-5389
Signed-off-by: Max Krummenacher <max.krummenacher@toradex.com>
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Add overlay for DSI, audio and spidev. MIPI-CSI and LVDS are not
supported in mainline yet, therefore skip those.
Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
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