diff options
Diffstat (limited to 'drivers/input/touchscreen')
| -rw-r--r-- | drivers/input/touchscreen/ucb1400_ts.c | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/drivers/input/touchscreen/ucb1400_ts.c b/drivers/input/touchscreen/ucb1400_ts.c index 5200f4cbfe01..24000f0efeaa 100644 --- a/drivers/input/touchscreen/ucb1400_ts.c +++ b/drivers/input/touchscreen/ucb1400_ts.c @@ -97,6 +97,8 @@ struct ucb1400 { }; static int adcsync; +static int ts_delay = 55; /* us */ +static int ts_delay_pressure; /* us */ static inline u16 ucb1400_reg_read(struct ucb1400 *ucb, u16 reg) { @@ -159,6 +161,7 @@ static inline unsigned int ucb1400_ts_read_pressure(struct ucb1400 *ucb) UCB_TS_CR_TSMX_POW | UCB_TS_CR_TSPX_POW | UCB_TS_CR_TSMY_GND | UCB_TS_CR_TSPY_GND | UCB_TS_CR_MODE_PRES | UCB_TS_CR_BIAS_ENA); + udelay(ts_delay_pressure); return ucb1400_adc_read(ucb, UCB_ADC_INP_TSPY); } @@ -180,7 +183,7 @@ static inline unsigned int ucb1400_ts_read_xpos(struct ucb1400 *ucb) UCB_TS_CR_TSMX_GND | UCB_TS_CR_TSPX_POW | UCB_TS_CR_MODE_POS | UCB_TS_CR_BIAS_ENA); - udelay(55); + udelay(ts_delay); return ucb1400_adc_read(ucb, UCB_ADC_INP_TSPY); } @@ -203,7 +206,7 @@ static inline unsigned int ucb1400_ts_read_ypos(struct ucb1400 *ucb) UCB_TS_CR_TSMY_GND | UCB_TS_CR_TSPY_POW | UCB_TS_CR_MODE_POS | UCB_TS_CR_BIAS_ENA); - udelay(55); + udelay(ts_delay); return ucb1400_adc_read(ucb, UCB_ADC_INP_TSPX); } @@ -571,7 +574,15 @@ static void __exit ucb1400_ts_exit(void) driver_unregister(&ucb1400_ts_driver); } -module_param(adcsync, int, 0444); +module_param(adcsync, bool, 0444); +MODULE_PARM_DESC(adcsync, "Synchronize touch readings with ADCSYNC pin."); + +module_param(ts_delay, int, 0444); +MODULE_PARM_DESC(ts_delay, "Delay between panel setup and position read. Default = 55us."); + +module_param(ts_delay_pressure, int, 0444); +MODULE_PARM_DESC(ts_delay_pressure, + "delay between panel setup and pressure read. Default = 0us."); module_init(ucb1400_ts_init); module_exit(ucb1400_ts_exit); |