diff options
Diffstat (limited to 'drivers/iio/adc/mxs-lradc.c')
| -rw-r--r-- | drivers/iio/adc/mxs-lradc.c | 37 |
1 files changed, 17 insertions, 20 deletions
diff --git a/drivers/iio/adc/mxs-lradc.c b/drivers/iio/adc/mxs-lradc.c index 33051b87a..ad26da1ed 100644 --- a/drivers/iio/adc/mxs-lradc.c +++ b/drivers/iio/adc/mxs-lradc.c @@ -686,6 +686,17 @@ static void mxs_lradc_prepare_pressure(struct mxs_lradc *lradc) static void mxs_lradc_enable_touch_detection(struct mxs_lradc *lradc) { + /* Configure the touchscreen type */ + if (lradc->soc == IMX28_LRADC) { + mxs_lradc_reg_clear(lradc, LRADC_CTRL0_MX28_TOUCH_SCREEN_TYPE, + LRADC_CTRL0); + + if (lradc->use_touchscreen == MXS_LRADC_TOUCHSCREEN_5WIRE) + mxs_lradc_reg_set(lradc, + LRADC_CTRL0_MX28_TOUCH_SCREEN_TYPE, + LRADC_CTRL0); + } + mxs_lradc_setup_touch_detection(lradc); lradc->cur_plate = LRADC_TOUCH; @@ -1127,6 +1138,7 @@ static int mxs_lradc_ts_register(struct mxs_lradc *lradc) __set_bit(EV_ABS, input->evbit); __set_bit(EV_KEY, input->evbit); __set_bit(BTN_TOUCH, input->keybit); + __set_bit(INPUT_PROP_DIRECT, input->propbit); input_set_abs_params(input, ABS_X, 0, LRADC_SINGLE_SAMPLE_MASK, 0, 0); input_set_abs_params(input, ABS_Y, 0, LRADC_SINGLE_SAMPLE_MASK, 0, 0); input_set_abs_params(input, ABS_PRESSURE, 0, LRADC_SINGLE_SAMPLE_MASK, @@ -1475,18 +1487,13 @@ static const struct iio_chan_spec mx28_lradc_chan_spec[] = { MXS_ADC_CHAN(15, IIO_VOLTAGE, "VDD5V"), }; -static int mxs_lradc_hw_init(struct mxs_lradc *lradc) +static void mxs_lradc_hw_init(struct mxs_lradc *lradc) { /* The ADC always uses DELAY CHANNEL 0. */ const u32 adc_cfg = (1 << (LRADC_DELAY_TRIGGER_DELAYS_OFFSET + 0)) | (LRADC_DELAY_TIMER_PER << LRADC_DELAY_DELAY_OFFSET); - int ret = stmp_reset_block(lradc->base); - - if (ret) - return ret; - /* Configure DELAY CHANNEL 0 for generic ADC sampling. */ mxs_lradc_reg_wrt(lradc, adc_cfg, LRADC_DELAY(0)); @@ -1495,20 +1502,8 @@ static int mxs_lradc_hw_init(struct mxs_lradc *lradc) mxs_lradc_reg_wrt(lradc, 0, LRADC_DELAY(2)); mxs_lradc_reg_wrt(lradc, 0, LRADC_DELAY(3)); - /* Configure the touchscreen type */ - if (lradc->soc == IMX28_LRADC) { - mxs_lradc_reg_clear(lradc, LRADC_CTRL0_MX28_TOUCH_SCREEN_TYPE, - LRADC_CTRL0); - - if (lradc->use_touchscreen == MXS_LRADC_TOUCHSCREEN_5WIRE) - mxs_lradc_reg_set(lradc, LRADC_CTRL0_MX28_TOUCH_SCREEN_TYPE, - LRADC_CTRL0); - } - /* Start internal temperature sensing. */ mxs_lradc_reg_wrt(lradc, 0, LRADC_CTRL2); - - return 0; } static void mxs_lradc_hw_stop(struct mxs_lradc *lradc) @@ -1708,11 +1703,13 @@ static int mxs_lradc_probe(struct platform_device *pdev) } } - /* Configure the hardware. */ - ret = mxs_lradc_hw_init(lradc); + ret = stmp_reset_block(lradc->base); if (ret) goto err_dev; + /* Configure the hardware. */ + mxs_lradc_hw_init(lradc); + /* Register the touchscreen input device. */ if (touch_ret == 0) { ret = mxs_lradc_ts_register(lradc); |