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authorBrad Griffis <bgriffis@ti.com>2015-02-03 11:41:58 -0800
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2015-02-03 11:50:37 -0800
commit3a59684ccc5d529e7e9ce8b068889dbaa4c34e9b (patch)
treea7cdee1b66db17d7b071e3517128d00e1bc4d0b6 /drivers/input/joystick
parent448c7f3830ca283e485aa943279acea6bde8b270 (diff)
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Input: ti_am335x_tsc - interchange touchscreen and ADC steps
This patch makes the initial changes required to workaround TSC-false pen-up interrupts. It is required to implement these changes in order to remove udelay in the TSC interrupt handler and false pen-up events. The charge step is to be executed immediately after sampling X+. Hence TSC is made to use higher numbered steps (steps 5 to 16 for 5 co-ordinate readouts, 4 wire TSC configuration) and ADC to use lower ones. Further X co-ordinate readouts must be the last to be sampled, thus co-ordinates are sampled in the order Y-Z-X. Signed-off-by: Brad Griffis <bgriffis@ti.com> [vigneshr@ti.com: Ported the patch from v3.12 to v3.19rc1] Signed-off-by: Vignesh R <vigneshr@ti.com> Acked-by: Jonathan Cameron <jic23@kernel.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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