Add overlay for Azoteq IQS550#4813
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pelwell merged 2 commits intoraspberrypi:rpi-5.15.yfrom Jan 7, 2022
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This patch enables the Azoteq IQS550/572/525 trackpad/touchscreen controller as a module. Signed-off-by: Jeff LaBundy <jeff@labundy.com>
This patch adds a device tree overlay for the Azoteq IQS550 trackpad/touchscreen controller. Signed-off-by: Jeff LaBundy <jeff@labundy.com>
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Active-high interrupts aren't that common, but it is used in the dt-bindings document and obviously works. Nicely done - I can't find a single fault. |
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Has this ever happened before? Do we need beer? |
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We always need beer! Shame you're not in the office to share it :-) |
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kernel: arm: Fix custom rpi __memset32 and __memset64 See: raspberrypi/linux#4820 kernel: drm/vc4: Disable Gamma control on HVS5 due to issues writing the table See: raspberrypi/linux#4825 kernel: drm/vc4: hdmi: Fix clock value used for validating hdmi modes See: raspberrypi/linux#4826 kernel: overlays: Add vl805 overlay See: https://forums.raspberrypi.com/viewtopic.php?t=326088 kernel: configs: add CONFIG_LEDS_TRIGGER_PATTERN=m See: raspberrypi/linux#4789 kernel: Add overlay for Azoteq IQS550 See: raspberrypi/linux#4813 kernel: dtoverlays: Add backlight-gpio parameter to vc4-kms-dpi-generic See: raspberrypi/linux#4815 kernel: bcm2835-v4l2-isp: Add missing lock initialization See: raspberrypi/linux#4800 kernel: media: i2c: ov9281: Increase diff between VTS and max exposure See: raspberrypi/linux#4807
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kernel: arm: Fix custom rpi __memset32 and __memset64 See: raspberrypi/linux#4820 kernel: drm/vc4: Disable Gamma control on HVS5 due to issues writing the table See: raspberrypi/linux#4825 kernel: drm/vc4: hdmi: Fix clock value used for validating hdmi modes See: raspberrypi/linux#4826 kernel: overlays: Add vl805 overlay See: https://forums.raspberrypi.com/viewtopic.php?t=326088 kernel: configs: add CONFIG_LEDS_TRIGGER_PATTERN=m See: raspberrypi/linux#4789 kernel: Add overlay for Azoteq IQS550 See: raspberrypi/linux#4813 kernel: dtoverlays: Add backlight-gpio parameter to vc4-kms-dpi-generic See: raspberrypi/linux#4815 kernel: bcm2835-v4l2-isp: Add missing lock initialization See: raspberrypi/linux#4800 kernel: media: i2c: ov9281: Increase diff between VTS and max exposure See: raspberrypi/linux#4807
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This series enables the Azoteq IQS550 trackpad/touchscreen controller and adds a corresponding overlay.
The vendor offers an evaluation kit (IQS550EV02) which, when paired with a suitable X driver, makes for a handy multitouch trackpad. The following demo shows the device paired with Raspberry Pi: https://youtu.be/sRNNx4XZBts
The overlay is only pushed against rpi-5.15.y; this is because the mainline driver only recently allowed the reset GPIO to be optional. The reset GPIO is only used to access the IQS550 bootloader, and the IQS550EV02 must be modified to access the pin.