diff options
Diffstat (limited to 'drivers/input/touchscreen/ads7846.c')
| -rw-r--r-- | drivers/input/touchscreen/ads7846.c | 31 |
1 files changed, 17 insertions, 14 deletions
diff --git a/drivers/input/touchscreen/ads7846.c b/drivers/input/touchscreen/ads7846.c index bed68a68f330..17f11bce8113 100644 --- a/drivers/input/touchscreen/ads7846.c +++ b/drivers/input/touchscreen/ads7846.c @@ -843,14 +843,8 @@ static void ads7846_report_state(struct ads7846 *ts) if (x == MAX_12BIT) x = 0; - if (ts->model == 7843) { + if (ts->model == 7843 || ts->model == 7845) { Rt = ts->pressure_max / 2; - } else if (ts->model == 7845) { - if (get_pendown_state(ts)) - Rt = ts->pressure_max / 2; - else - Rt = 0; - dev_vdbg(&ts->spi->dev, "x/y: %d/%d, PD %d\n", x, y, Rt); } else if (likely(x && z1)) { /* compute touch pressure resistance using equation #2 */ Rt = z2; @@ -944,7 +938,7 @@ static irqreturn_t ads7846_irq(int irq, void *handle) return IRQ_HANDLED; } -static int __maybe_unused ads7846_suspend(struct device *dev) +static int ads7846_suspend(struct device *dev) { struct ads7846 *ts = dev_get_drvdata(dev); @@ -966,7 +960,7 @@ static int __maybe_unused ads7846_suspend(struct device *dev) return 0; } -static int __maybe_unused ads7846_resume(struct device *dev) +static int ads7846_resume(struct device *dev) { struct ads7846 *ts = dev_get_drvdata(dev); @@ -988,7 +982,7 @@ static int __maybe_unused ads7846_resume(struct device *dev) return 0; } -static SIMPLE_DEV_PM_OPS(ads7846_pm, ads7846_suspend, ads7846_resume); +static DEFINE_SIMPLE_DEV_PM_OPS(ads7846_pm, ads7846_suspend, ads7846_resume); static int ads7846_setup_pendown(struct spi_device *spi, struct ads7846 *ts, @@ -1066,6 +1060,9 @@ static int ads7846_setup_spi_msg(struct ads7846 *ts, struct ads7846_buf_layout *l = &packet->l[cmd_idx]; unsigned int max_count; + if (cmd_idx == packet->cmds - 1) + cmd_idx = ADS7846_PWDOWN; + if (ads7846_cmd_need_settle(cmd_idx)) max_count = packet->count + packet->count_skip; else @@ -1102,7 +1099,12 @@ static int ads7846_setup_spi_msg(struct ads7846 *ts, for (cmd_idx = 0; cmd_idx < packet->cmds; cmd_idx++) { struct ads7846_buf_layout *l = &packet->l[cmd_idx]; - u8 cmd = ads7846_get_cmd(cmd_idx, vref); + u8 cmd; + + if (cmd_idx == packet->cmds - 1) + cmd_idx = ADS7846_PWDOWN; + + cmd = ads7846_get_cmd(cmd_idx, vref); for (b = 0; b < l->count; b++) packet->tx[l->offset + b].cmd = cmd; @@ -1316,8 +1318,9 @@ static int ads7846_probe(struct spi_device *spi) pdata->y_min ? : 0, pdata->y_max ? : MAX_12BIT, 0, 0); - input_set_abs_params(input_dev, ABS_PRESSURE, - pdata->pressure_min, pdata->pressure_max, 0, 0); + if (ts->model != 7845) + input_set_abs_params(input_dev, ABS_PRESSURE, + pdata->pressure_min, pdata->pressure_max, 0, 0); /* * Parse common framework properties. Must be done here to ensure the @@ -1421,7 +1424,7 @@ static void ads7846_remove(struct spi_device *spi) static struct spi_driver ads7846_driver = { .driver = { .name = "ads7846", - .pm = &ads7846_pm, + .pm = pm_sleep_ptr(&ads7846_pm), .of_match_table = of_match_ptr(ads7846_dt_ids), }, .probe = ads7846_probe, |