recipes-kernel/linux/linux-ti33x-psp-3.2/beaglebone/0065-ti_tscadc-switch-to-16x-averaging.patch

   1 From bd18b67644c8107920db6911aa16be680af23cf1 Mon Sep 17 00:00:00 2001
   2 From: Koen Kooi <koen@dominion.thruhere.net>
   3 Date: Mon, 28 May 2012 09:56:45 +0200
   4 Subject: [PATCH 65/79] ti_tscadc: switch to 16x averaging
   5
   6 Signed-off-by: Koen Kooi <koen@dominion.thruhere.net>
   7 ---
   8  drivers/input/touchscreen/ti_tscadc.c |    8 ++++----
   9  1 file changed, 4 insertions(+), 4 deletions(-)
  10
  11 diff --git a/drivers/input/touchscreen/ti_tscadc.c b/drivers/input/touchscreen/ti_tscadc.c
  12 index 7df7bb2..ae6c4c4 100644
  13 --- a/drivers/input/touchscreen/ti_tscadc.c
  14 +++ b/drivers/input/touchscreen/ti_tscadc.c
  15 @@ -161,7 +161,7 @@ static void tsc_adc_step_config(struct tscadc *ts_dev, int channel)
  16          * sample channel 1 (SEL_INP mux bits = 0)
  17          */
  18         stepconfig = TSCADC_STEPCONFIG_MODE_SWONESHOT |
  19 -               TSCADC_STEPCONFIG_4SAMPLES_AVG |
  20 +               TSCADC_STEPCONFIG_16SAMPLES_AVG |
  21                 ((channel-1) << 19);
  22
  23         delay = TSCADC_STEPCONFIG_SAMPLEDLY | TSCADC_STEPCONFIG_OPENDLY;
  24 @@ -242,7 +242,7 @@ static void tsc_step_config(struct tscadc *ts_dev)
  25         delay = TSCADC_STEPCONFIG_SAMPLEDLY | TSCADC_STEPCONFIG_OPENDLY;
  26
  27         stepconfigx = TSCADC_STEPCONFIG_MODE_HWSYNC |
  28 -                       TSCADC_STEPCONFIG_4SAMPLES_AVG | TSCADC_STEPCONFIG_XPP;
  29 +                       TSCADC_STEPCONFIG_16SAMPLES_AVG | TSCADC_STEPCONFIG_XPP;
  30
  31         switch (ts_dev->wires) {
  32         case 4:
  33 @@ -279,7 +279,7 @@ static void tsc_step_config(struct tscadc *ts_dev)
  34         }
  35
  36         stepconfigy = TSCADC_STEPCONFIG_MODE_HWSYNC |
  37 -                       TSCADC_STEPCONFIG_4SAMPLES_AVG | TSCADC_STEPCONFIG_YNN |
  38 +                       TSCADC_STEPCONFIG_16SAMPLES_AVG | TSCADC_STEPCONFIG_YNN |
  39                         TSCADC_STEPCONFIG_INM | TSCADC_STEPCONFIG_FIFO1;
  40         switch (ts_dev->wires) {
  41         case 4:
  42 @@ -324,7 +324,7 @@ static void tsc_step_config(struct tscadc *ts_dev)
  43
  44          /* Configure to calculate pressure */
  45         stepconfigz1 = TSCADC_STEPCONFIG_MODE_HWSYNC |
  46 -                               TSCADC_STEPCONFIG_4SAMPLES_AVG |
  47 +                               TSCADC_STEPCONFIG_16SAMPLES_AVG |
  48                                 TSCADC_STEPCONFIG_XNP |
  49                                 TSCADC_STEPCONFIG_YPN | TSCADC_STEPCONFIG_INM;
  50         stepconfigz2 = stepconfigz1 | TSCADC_STEPCONFIG_Z1 |
  51 --
  52 1.7.10
  53