KMS 7" DSI panel and touchscreen fixes #4750
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The I2C to the Atmel is very fussy, and locks up easily on Pi0-3 particularly on reads. The LCD power status is controlled solely by this driver, so rather than reading it back from the Atmel, use the cached status last set. Signed-off-by: Dave Stevenson <[email protected]>
The I2C to the Atmel is very fussy, and locks up easily on Pi0-3 particularly on reads. If running at 100kHz on Pi3, reading the ID register generally locks up the Atmel, but splitting the register select write and read into two transactions is reliable. Signed-off-by: Dave Stevenson <[email protected]>
This reverts commit 0c41710. The regulator driver is now hopefully fixed, therefore revert the workaround that dropped the I2C frequency. Signed-off-by: Dave Stevenson <[email protected]>
Register 0x02 in the FT5x06 is TD_STATUS containing the number of valid touch points being reported. Iterate over that number of points rather than all that are supported on the device. Signed-off-by: Dave Stevenson <[email protected]>
The commit that changed from dev_err to dev_err_probe left the %d in the format string, but removed the parameter, leading to a compile warning. Fixes: "6505412df625 drm/vc4: Use dev_err_probe when logging error registering HDMI audio" Signed-off-by: Dave Stevenson <[email protected]>
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See: raspberrypi/linux#4755 kernel: DPI panel configuration See: raspberrypi/linux#4753 kernel: KMS 7" DSI panel and touchscreen fixes See: raspberrypi/linux#4750 kernel: drm/vc4: Hold pm_runtime for vc4 See: raspberrypi/linux#4706
popcornmix
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See: raspberrypi/linux#4755 kernel: DPI panel configuration See: raspberrypi/linux#4753 kernel: KMS 7" DSI panel and touchscreen fixes See: raspberrypi/linux#4750 kernel: drm/vc4: Hold pm_runtime for vc4 See: raspberrypi/linux#4706
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