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  1. 05 Nov, 2012 4 commits
    • Patil, Rachna's avatar
      input: TSC: ti_tscadc: Remove definition of End Of Interrupt register · c6e86db2
      Patil, Rachna authored 
      The touchscreen IP uses level sensitive interrupts rather
than edge sensitive interrupts and therefore the is no need
to use the EOI register to have the module re-strobe the
interrupt line if there pending interrupts exist.
Signed-off-by: default avatarPatil, Rachna <rachna@ti.com>
Signed-off-by: default avatarSamuel Ortiz <sameo@linux.intel.com>
      c6e86db2
    • Patil, Rachna's avatar
      input: TSC: ti_tscadc: set FIFO0 threshold Interrupt · 30af55f9
      Patil, Rachna authored 
      Code currently uses FIFO1 threshold interrupt.
since this is a MFD, Dedicating FIFO0 to touchscreen
and making way for other devices to use FIFO1 as well.
The FIFO can be shared between 2 devices but since the
interrupt used is threshold interrupt on FIFO1, we would
end up having wrong interrupts. Hence changing the same.
Signed-off-by: default avatarPatil, Rachna <rachna@ti.com>
Signed-off-by: default avatarSamuel Ortiz <sameo@linux.intel.com>
      30af55f9
    • Patil, Rachna's avatar
      input: TSC: ti_tscadc: Add Step configuration as platform data · d1fb5743
      Patil, Rachna authored 
      There are 16 programmable Step Configuration
registers which are used by the sequencer.
Program the Steps in order to configure a channel
input to be sampled. If the same step is applied
several times, the coordinate values read are more
accurate.
Hence we provide the user an option of how many steps
should be configured.

For ex: If this value is assigned as 4, This means that
4 steps are applied to read x co-ordinate and 4 steps to read
y co-ordinate. Furtheron the interrupt handler already
holds code to use delta filter and report the best value
out of these values to the input sub-system.
Signed-off-by: default avatarPatil, Rachna <rachna@ti.com>
Signed-off-by: default avatarSamuel Ortiz <sameo@linux.intel.com>
      d1fb5743
    • Patil, Rachna's avatar
      input: TSC: ti_tscadc: Correct register usage · 33f5cc60
      Patil, Rachna authored 
      This patch cleans up the wrong register definitions
and usage for touchscreen controller.
Bit masks were not defined earlier.

For ex: consider a register define as:
write(xyz, ABC)
ABC is expected to be written to register bits 0-11.
Here we see that value written is as expected, but this write
is also affecting all the remaining bits of xyz.
The remaining bits hold the default value as 0 and the write
also sets it to zero. Hence wrong usage were not causing user
visible bugs.
Due to these reasons it was difficult to follow when
compared with TRM.

Unused definitions are also removed.
Since there is change in some naming convention because of
all the above mentioned reasons, the same has been
updated throughout the code.
Bit declarations are grouped to increase readability.
Signed-off-by: default avatarPatil, Rachna <rachna@ti.com>
Signed-off-by: default avatarSamuel Ortiz <sameo@linux.intel.com>
      33f5cc60
  3. 04 Nov, 2012 1 commit
  5. 03 Nov, 2012 15 commits
  7. 02 Nov, 2012 20 commits
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