diff options
Diffstat (limited to 'drivers/input/touchscreen')
32 files changed, 422 insertions, 325 deletions
diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig index f012fe746df0..cc18f54ea887 100644 --- a/drivers/input/touchscreen/Kconfig +++ b/drivers/input/touchscreen/Kconfig @@ -96,6 +96,7 @@ config TOUCHSCREEN_AD7879_SPI config TOUCHSCREEN_ADC tristate "Generic ADC based resistive touchscreen" depends on IIO + select IIO_BUFFER select IIO_BUFFER_CB help Say Y here if you want to use the generic ADC diff --git a/drivers/input/touchscreen/ad7877.c b/drivers/input/touchscreen/ad7877.c index 9b652f61837f..08f5372f0bfd 100644 --- a/drivers/input/touchscreen/ad7877.c +++ b/drivers/input/touchscreen/ad7877.c @@ -281,12 +281,14 @@ static int ad7877_read_adc(struct spi_device *spi, unsigned command) req->xfer[1].tx_buf = &req->ref_on; req->xfer[1].len = 2; - req->xfer[1].delay_usecs = ts->vref_delay_usecs; + req->xfer[1].delay.value = ts->vref_delay_usecs; + req->xfer[1].delay.unit = SPI_DELAY_UNIT_USECS; req->xfer[1].cs_change = 1; req->xfer[2].tx_buf = &req->command; req->xfer[2].len = 2; - req->xfer[2].delay_usecs = ts->vref_delay_usecs; + req->xfer[2].delay.value = ts->vref_delay_usecs; + req->xfer[2].delay.unit = SPI_DELAY_UNIT_USECS; req->xfer[2].cs_change = 1; req->xfer[3].rx_buf = &req->sample; diff --git a/drivers/input/touchscreen/ad7879.c b/drivers/input/touchscreen/ad7879.c index 556a2af46e18..e850853328f1 100644 --- a/drivers/input/touchscreen/ad7879.c +++ b/drivers/input/touchscreen/ad7879.c @@ -306,7 +306,7 @@ static int __maybe_unused ad7879_suspend(struct device *dev) mutex_lock(&ts->input->mutex); - if (!ts->suspended && !ts->disabled && ts->input->users) + if (!ts->suspended && !ts->disabled && input_device_enabled(ts->input)) __ad7879_disable(ts); ts->suspended = true; @@ -322,7 +322,7 @@ static int __maybe_unused ad7879_resume(struct device *dev) mutex_lock(&ts->input->mutex); - if (ts->suspended && !ts->disabled && ts->input->users) + if (ts->suspended && !ts->disabled && input_device_enabled(ts->input)) __ad7879_enable(ts); ts->suspended = false; @@ -339,7 +339,7 @@ static void ad7879_toggle(struct ad7879 *ts, bool disable) { mutex_lock(&ts->input->mutex); - if (!ts->suspended && ts->input->users != 0) { + if (!ts->suspended && input_device_enabled(ts->input)) { if (disable) { if (ts->disabled) diff --git a/drivers/input/touchscreen/ads7846.c b/drivers/input/touchscreen/ads7846.c index 8fd7fc39c4fd..a703870ca7bd 100644 --- a/drivers/input/touchscreen/ads7846.c +++ b/drivers/input/touchscreen/ads7846.c @@ -32,7 +32,7 @@ #include <linux/spi/ads7846.h> #include <linux/regulator/consumer.h> #include <linux/module.h> -#include <asm/irq.h> +#include <asm/unaligned.h> /* * This code has been heavily tested on a Nokia 770, and lightly @@ -62,19 +62,26 @@ /* this driver doesn't aim at the peak continuous sample rate */ #define SAMPLE_BITS (8 /*cmd*/ + 16 /*sample*/ + 2 /* before, after */) -struct ts_event { +struct ads7846_buf { + u8 cmd; /* - * For portability, we can't read 12 bit values using SPI (which - * would make the controller deliver them as native byte order u16 - * with msbs zeroed). Instead, we read them as two 8-bit values, - * *** WHICH NEED BYTESWAPPING *** and range adjustment. + * This union is a temporary hack. The driver does an in-place + * endianness conversion. This will be cleaned up in the next + * patch. */ - u16 x; - u16 y; - u16 z1, z2; - bool ignore; - u8 x_buf[3]; - u8 y_buf[3]; + union { + __be16 data_be16; + u16 data; + }; +} __packed; + + +struct ts_event { + bool ignore; + struct ads7846_buf x; + struct ads7846_buf y; + struct ads7846_buf z1; + struct ads7846_buf z2; }; /* @@ -83,11 +90,12 @@ struct ts_event { * systems where main memory is not DMA-coherent (most non-x86 boards). */ struct ads7846_packet { - u8 read_x, read_y, read_z1, read_z2, pwrdown; - u16 dummy; /* for the pwrdown read */ - struct ts_event tc; - /* for ads7845 with mpc5121 psc spi we use 3-byte buffers */ - u8 read_x_cmd[3], read_y_cmd[3], pwrdown_cmd[3]; + struct ts_event tc; + struct ads7846_buf read_x_cmd; + struct ads7846_buf read_y_cmd; + struct ads7846_buf read_z1_cmd; + struct ads7846_buf read_z2_cmd; + struct ads7846_buf pwrdown_cmd; }; struct ads7846 { @@ -199,6 +207,26 @@ struct ads7846 { #define REF_ON (READ_12BIT_DFR(x, 1, 1)) #define REF_OFF (READ_12BIT_DFR(y, 0, 0)) +static int get_pendown_state(struct ads7846 *ts) +{ + if (ts->get_pendown_state) + return ts->get_pendown_state(); + + return !gpio_get_value(ts->gpio_pendown); +} + +static void ads7846_report_pen_up(struct ads7846 *ts) +{ + struct input_dev *input = ts->input; + + input_report_key(input, BTN_TOUCH, 0); + input_report_abs(input, ABS_PRESSURE, 0); + input_sync(input); + + ts->pendown = false; + dev_vdbg(&ts->spi->dev, "UP\n"); +} + /* Must be called with ts->lock held */ static void ads7846_stop(struct ads7846 *ts) { @@ -215,6 +243,10 @@ static void ads7846_stop(struct ads7846 *ts) static void ads7846_restart(struct ads7846 *ts) { if (!ts->disabled && !ts->suspended) { + /* Check if pen was released since last stop */ + if (ts->pendown && !get_pendown_state(ts)) + ads7846_report_pen_up(ts); + /* Tell IRQ thread that it may poll the device. */ ts->stopped = false; mb(); @@ -411,7 +443,7 @@ static int ads7845_read12_ser(struct device *dev, unsigned command) if (status == 0) { /* BE12 value, then padding */ - status = be16_to_cpu(*((u16 *)&req->sample[1])); + status = get_unaligned_be16(&req->sample[1]); status = status >> 3; status &= 0x0fff; } @@ -481,7 +513,7 @@ SHOW(in1_input, vbatt, vbatt_adjust) static umode_t ads7846_is_visible(struct kobject *kobj, struct attribute *attr, int index) { - struct device *dev = container_of(kobj, struct device, kobj); + struct device *dev = kobj_to_dev(kobj); struct ads7846 *ts = dev_get_drvdata(dev); if (ts->model == 7843 && index < 2) /* in0, in1 */ @@ -606,14 +638,6 @@ static const struct attribute_group ads784x_attr_group = { /*--------------------------------------------------------------------------*/ -static int get_pendown_state(struct ads7846 *ts) -{ - if (ts->get_pendown_state) - return ts->get_pendown_state(); - - return !gpio_get_value(ts->gpio_pendown); -} - static void null_wait_for_sync(void) { } @@ -670,16 +694,9 @@ static int ads7846_get_value(struct ads7846 *ts, struct spi_message *m) int value; struct spi_transfer *t = list_entry(m->transfers.prev, struct spi_transfer, transfer_list); + struct ads7846_buf *buf = t->rx_buf; - if (ts->model == 7845) { - value = be16_to_cpup((__be16 *)&(((char *)t->rx_buf)[1])); - } else { - /* - * adjust: on-wire is a must-ignore bit, a BE12 value, then - * padding; built from two 8 bit values written msb-first. - */ - value = be16_to_cpup((__be16 *)t->rx_buf); - } + value = be16_to_cpup(&buf->data_be16); /* enforce ADC output is 12 bits width */ return (value >> 3) & 0xfff; @@ -689,8 +706,9 @@ static void ads7846_update_value(struct spi_message *m, int val) { struct spi_transfer *t = list_entry(m->transfers.prev, struct spi_transfer, transfer_list); + struct ads7846_buf *buf = t->rx_buf; - *(u16 *)t->rx_buf = val; + buf->data = val; } static void ads7846_read_state(struct ads7846 *ts) @@ -758,16 +776,14 @@ static void ads7846_report_state(struct ads7846 *ts) * from on-the-wire format as part of debouncing to get stable * readings. */ + x = packet->tc.x.data; + y = packet->tc.y.data; if (ts->model == 7845) { - x = *(u16 *)packet->tc.x_buf; - y = *(u16 *)packet->tc.y_buf; z1 = 0; z2 = 0; } else { - x = packet->tc.x; - y = packet->tc.y; - z1 = packet->tc.z1; - z2 = packet->tc.z2; + z1 = packet->tc.z1.data; + z2 = packet->tc.z2.data; } /* range filtering */ @@ -786,10 +802,11 @@ static void ads7846_report_state(struct ads7846 *ts) /* compute touch pressure resistance using equation #2 */ Rt = z2; Rt -= z1; - Rt *= x; Rt *= ts->x_plate_ohms; + Rt = DIV_ROUND_CLOSEST(Rt, 16); + Rt *= x; Rt /= z1; - Rt = (Rt + 2047) >> 12; + Rt = DIV_ROUND_CLOSEST(Rt, 256); } else { Rt = 0; } @@ -868,16 +885,8 @@ static irqreturn_t ads7846_irq(int irq, void *handle) msecs_to_jiffies(TS_POLL_PERIOD)); } - if (ts->pendown && !ts->stopped) { - struct input_dev *input = ts->input; - - input_report_key(input, BTN_TOUCH, 0); - input_report_abs(input, ABS_PRESSURE, 0); - input_sync(input); - - ts->pendown = false; - dev_vdbg(&ts->spi->dev, "UP\n"); - } + if (ts->pendown && !ts->stopped) + ads7846_report_pen_up(ts); return IRQ_HANDLED; } @@ -992,26 +1001,11 @@ static void ads7846_setup_spi_msg(struct ads7846 *ts, spi_message_init(m); m->context = ts; - if (ts->model == 7845) { - packet->read_y_cmd[0] = READ_Y(vref); - packet->read_y_cmd[1] = 0; - packet->read_y_cmd[2] = 0; - x->tx_buf = &packet->read_y_cmd[0]; - x->rx_buf = &packet->tc.y_buf[0]; - x->len = 3; - spi_message_add_tail(x, m); - } else { - /* y- still on; turn on only y+ (and ADC) */ - packet->read_y = READ_Y(vref); - x->tx_buf = &packet->read_y; - x->len = 1; - spi_message_add_tail(x, m); - - x++; - x->rx_buf = &packet->tc.y; - x->len = 2; - spi_message_add_tail(x, m); - } + packet->read_y_cmd.cmd = READ_Y(vref); + x->tx_buf = &packet->read_y_cmd; + x->rx_buf = &packet->tc.y; + x->len = 3; + spi_message_add_tail(x, m); /* * The first sample after switching drivers can be low quality; @@ -1021,15 +1015,11 @@ static void ads7846_setup_spi_msg(struct ads7846 *ts, if (pdata->settle_delay_usecs) { x->delay.value = pdata->settle_delay_usecs; x->delay.unit = SPI_DELAY_UNIT_USECS; - x++; - x->tx_buf = &packet->read_y; - x->len = 1; - spi_message_add_tail(x, m); - x++; + x->tx_buf = &packet->read_y_cmd; x->rx_buf = &packet->tc.y; - x->len = 2; + x->len = 3; spi_message_add_tail(x, m); } @@ -1038,28 +1028,13 @@ static void ads7846_setup_spi_msg(struct ads7846 *ts, spi_message_init(m); m->context = ts; - if (ts->model == 7845) { - x++; - packet->read_x_cmd[0] = READ_X(vref); - packet->read_x_cmd[1] = 0; - packet->read_x_cmd[2] = 0; - x->tx_buf = &packet->read_x_cmd[0]; - x->rx_buf = &packet->tc.x_buf[0]; - x->len = 3; - spi_message_add_tail(x, m); - } else { - /* turn y- off, x+ on, then leave in lowpower */ - x++; - packet->read_x = READ_X(vref); - x->tx_buf = &packet->read_x; - x->len = 1; - spi_message_add_tail(x, m); - - x++; - x->rx_buf = &packet->tc.x; - x->len = 2; - spi_message_add_tail(x, m); - } + /* turn y- off, x+ on, then leave in lowpower */ + x++; + packet->read_x_cmd.cmd = READ_X(vref); + x->tx_buf = &packet->read_x_cmd; + x->rx_buf = &packet->tc.x; + x->len = 3; + spi_message_add_tail(x, m); /* ... maybe discard first sample ... */ if (pdata->settle_delay_usecs) { @@ -1067,13 +1042,9 @@ static void ads7846_setup_spi_msg(struct ads7846 *ts, x->delay.unit = SPI_DELAY_UNIT_USECS; x++; - x->tx_buf = &packet->read_x; - x->len = 1; - spi_message_add_tail(x, m); - - x++; + x->tx_buf = &packet->read_x_cmd; x->rx_buf = &packet->tc.x; - x->len = 2; + x->len = 3; spi_message_add_tail(x, m); } @@ -1085,14 +1056,10 @@ static void ads7846_setup_spi_msg(struct ads7846 *ts, m->context = ts; x++; - packet->read_z1 = READ_Z1(vref); - x->tx_buf = &packet->read_z1; - x->len = 1; - spi_message_add_tail(x, m); - - x++; + packet->read_z1_cmd.cmd = READ_Z1(vref); + x->tx_buf = &packet->read_z1_cmd; x->rx_buf = &packet->tc.z1; - x->len = 2; + x->len = 3; spi_message_add_tail(x, m); /* ... maybe discard first sample ... */ @@ -1101,13 +1068,9 @@ static void ads7846_setup_spi_msg(struct ads7846 *ts, x->delay.unit = SPI_DELAY_UNIT_USECS; x++; - x->tx_buf = &packet->read_z1; - x->len = 1; - spi_message_add_tail(x, m); - - x++; + x->tx_buf = &packet->read_z1_cmd; x->rx_buf = &packet->tc.z1; - x->len = 2; + x->len = 3; spi_message_add_tail(x, m); } @@ -1117,14 +1080,10 @@ static void ads7846_setup_spi_msg(struct ads7846 *ts, m->context = ts; x++; - packet->read_z2 = READ_Z2(vref); - x->tx_buf = &packet->read_z2; - x->len = 1; - spi_message_add_tail(x, m); - - x++; + packet->read_z2_cmd.cmd = READ_Z2(vref); + x->tx_buf = &packet->read_z2_cmd; x->rx_buf = &packet->tc.z2; - x->len = 2; + x->len = 3; spi_message_add_tail(x, m); /* ... maybe discard first sample ... */ @@ -1133,13 +1092,9 @@ static void ads7846_setup_spi_msg(struct ads7846 *ts, x->delay.unit = SPI_DELAY_UNIT_USECS; x++; - x->tx_buf = &packet->read_z2; - x->len = 1; - spi_message_add_tail(x, m); - - x++; + x->tx_buf = &packet->read_z2_cmd; x->rx_buf = &packet->tc.z2; - x->len = 2; + x->len = 3; spi_message_add_tail(x, m); } } @@ -1150,24 +1105,10 @@ static void ads7846_setup_spi_msg(struct ads7846 *ts, spi_message_init(m); m->context = ts; - if (ts->model == 7845) { - x++; - packet->pwrdown_cmd[0] = PWRDOWN; - packet->pwrdown_cmd[1] = 0; - packet->pwrdown_cmd[2] = 0; - x->tx_buf = &packet->pwrdown_cmd[0]; - x->len = 3; - } else { - x++; - packet->pwrdown = PWRDOWN; - x->tx_buf = &packet->pwrdown; - x->len = 1; - spi_message_add_tail(x, m); - - x++; - x->rx_buf = &packet->dummy; - x->len = 2; - } + x++; + packet->pwrdown_cmd.cmd = PWRDOWN; + x->tx_buf = &packet->pwrdown_cmd; + x->len = 3; CS_CHANGE(*x); spi_message_add_tail(x, m); @@ -1288,7 +1229,8 @@ static int ads7846_probe(struct spi_device *spi) * may not. So we stick to very-portable 8 bit words, both RX and TX. */ spi->bits_per_word = 8; - spi->mode = SPI_MODE_0; + spi->mode &= ~SPI_MODE_X_MASK; + spi->mode |= SPI_MODE_0; err = spi_setup(spi); if (err < 0) return err; diff --git a/drivers/input/touchscreen/atmel_mxt_ts.c b/drivers/input/touchscreen/atmel_mxt_ts.c index 98f17fa3a892..383a848eb601 100644 --- a/drivers/input/touchscreen/atmel_mxt_ts.c +++ b/drivers/input/touchscreen/atmel_mxt_ts.c @@ -24,6 +24,7 @@ #include <linux/of.h> #include <linux/property.h> #include <linux/slab.h> +#include <linux/regulator/consumer.h> #include <linux/gpio/consumer.h> #include <asm/unaligned.h> #include <media/v4l2-device.h> @@ -309,6 +310,7 @@ struct mxt_data { u8 multitouch; struct t7_config t7_cfg; struct mxt_dbg dbg; + struct regulator_bulk_data regulators[2]; struct gpio_desc *reset_gpio; bool use_retrigen_workaround; @@ -606,7 +608,6 @@ recheck: static int mxt_send_bootloader_cmd(struct mxt_data *data, bool unlock) { - int ret; u8 buf[2]; if (unlock) { @@ -617,11 +618,7 @@ static int mxt_send_bootloader_cmd(struct mxt_data *data, bool unlock) buf[1] = 0x01; } - ret = mxt_bootloader_write(data, buf, 2); - if (ret) - return ret; - - return 0; + return mxt_bootloader_write(data, buf, sizeof(buf)); } static int __mxt_read_reg(struct i2c_client *client, @@ -2183,11 +2180,11 @@ static int mxt_initialize(struct mxt_data *data) msleep(MXT_FW_RESET_TIME); } - error = mxt_acquire_irq(data); + error = mxt_check_retrigen(data); if (error) return error; - error = mxt_check_retrigen(data); + error = mxt_acquire_irq(data); if (error) return error; @@ -3134,8 +3131,24 @@ static int mxt_probe(struct i2c_client *client, const struct i2c_device_id *id) if (error) return error; + /* + * VDDA is the analog voltage supply 2.57..3.47 V + * VDD is the digital voltage supply 1.71..3.47 V + */ + data->regulators[0].supply = "vdda"; + data->regulators[1].supply = "vdd"; + error = devm_regulator_bulk_get(&client->dev, ARRAY_SIZE(data->regulators), + data->regulators); + if (error) { + if (error != -EPROBE_DEFER) + dev_err(&client->dev, "Failed to get regulators %d\n", + error); + return error; + } + + /* Request the RESET line as asserted so we go into reset */ data->reset_gpio = devm_gpiod_get_optional(&client->dev, - "reset", GPIOD_OUT_LOW); + "reset", GPIOD_OUT_HIGH); if (IS_ERR(data->reset_gpio)) { error = PTR_ERR(data->reset_gpio); dev_err(&client->dev, "Failed to get reset gpio: %d\n", error); @@ -3152,15 +3165,29 @@ static int mxt_probe(struct i2c_client *client, const struct i2c_device_id *id) disable_irq(client->irq); + error = regulator_bulk_enable(ARRAY_SIZE(data->regulators), + data->regulators); + if (error) { + dev_err(&client->dev, "failed to enable regulators: %d\n", + error); + return error; + } + /* + * The device takes 40ms to come up after power-on according + * to the mXT224 datasheet, page 13. + */ + msleep(MXT_BACKUP_TIME); + if (data->reset_gpio) { + /* Wait a while and then de-assert the RESET GPIO line */ msleep(MXT_RESET_GPIO_TIME); - gpiod_set_value(data->reset_gpio, 1); + gpiod_set_value(data->reset_gpio, 0); msleep(MXT_RESET_INVALID_CHG); } error = mxt_initialize(data); if (error) - return error; + goto err_disable_regulators; error = sysfs_create_group(&client->dev.kobj, &mxt_attr_group); if (error) { @@ -3174,6 +3201,9 @@ static int mxt_probe(struct i2c_client *client, const struct i2c_device_id *id) err_free_object: mxt_free_input_device(data); mxt_free_object_table(data); +err_disable_regulators: + regulator_bulk_disable(ARRAY_SIZE(data->regulators), + data->regulators); return error; } @@ -3185,6 +3215,8 @@ static int mxt_remove(struct i2c_client *client) sysfs_remove_group(&client->dev.kobj, &mxt_attr_group); mxt_free_input_device(data); mxt_free_object_table(data); + regulator_bulk_disable(ARRAY_SIZE(data->regulators), + data->regulators); return 0; } @@ -3200,7 +3232,7 @@ static int __maybe_unused mxt_suspend(struct device *dev) mutex_lock(&input_dev->mutex); - if (input_dev->users) + if (input_device_enabled(input_dev)) mxt_stop(data); mutex_unlock(&input_dev->mutex); @@ -3223,7 +3255,7 @@ static int __maybe_unused mxt_resume(struct device *dev) mutex_lock(&input_dev->mutex); - if (input_dev->users) + if (input_device_enabled(input_dev)) mxt_start(data); mutex_unlock(&input_dev->mutex); diff --git a/drivers/input/touchscreen/auo-pixcir-ts.c b/drivers/input/touchscreen/auo-pixcir-ts.c index 8e9f3b7b8180..c33e63ca6142 100644 --- a/drivers/input/touchscreen/auo-pixcir-ts.c +++ b/drivers/input/touchscreen/auo-pixcir-ts.c @@ -414,7 +414,7 @@ static int __maybe_unused auo_pixcir_suspend(struct device *dev) */ if (device_may_wakeup(&client->dev)) { /* need to start device if not open, to be wakeup source */ - if (!input->users) { + if (!input_device_enabled(input)) { ret = auo_pixcir_start(ts); if (ret) goto unlock; @@ -422,7 +422,7 @@ static int __maybe_unused auo_pixcir_suspend(struct device *dev) enable_irq_wake(client->irq); ret = auo_pixcir_power_mode(ts, AUO_PIXCIR_POWER_SLEEP); - } else if (input->users) { + } else if (input_device_enabled(input)) { ret = auo_pixcir_stop(ts); } @@ -445,14 +445,14 @@ static int __maybe_unused auo_pixcir_resume(struct device *dev) disable_irq_wake(client->irq); /* need to stop device if it was not open on suspend */ - if (!input->users) { + if (!input_device_enabled(input)) { ret = auo_pixcir_stop(ts); if (ret) goto unlock; } /* device wakes automatically from SLEEP */ - } else if (input->users) { + } else if (input_device_enabled(input)) { ret = auo_pixcir_start(ts); } diff --git a/drivers/input/touchscreen/bu21029_ts.c b/drivers/input/touchscreen/bu21029_ts.c index 49a8d4bbca3a..341925edb8e6 100644 --- a/drivers/input/touchscreen/bu21029_ts.c +++ b/drivers/input/touchscreen/bu21029_ts.c @@ -430,7 +430,7 @@ static int __maybe_unused bu21029_suspend(struct device *dev) if (!device_may_wakeup(dev)) { mutex_lock(&bu21029->in_dev->mutex); - if (bu21029->in_dev->users) + if (input_device_enabled(bu21029->in_dev)) bu21029_stop_chip(bu21029->in_dev); mutex_unlock(&bu21029->in_dev->mutex); } @@ -445,7 +445,7 @@ static int __maybe_unused bu21029_resume(struct device *dev) if (!device_may_wakeup(dev)) { mutex_lock(&bu21029->in_dev->mutex); - if (bu21029->in_dev->users) + if (input_device_enabled(bu21029->in_dev)) bu21029_start_chip(bu21029->in_dev); mutex_unlock(&bu21029->in_dev->mutex); } diff --git a/drivers/input/touchscreen/chipone_icn8318.c b/drivers/input/touchscreen/chipone_icn8318.c index d91d2fd78649..f2fb41fb031e 100644 --- a/drivers/input/touchscreen/chipone_icn8318.c +++ b/drivers/input/touchscreen/chipone_icn8318.c @@ -154,7 +154,7 @@ static int icn8318_suspend(struct device *dev) struct icn8318_data *data = i2c_get_clientdata(to_i2c_client(dev)); mutex_lock(&data->input->mutex); - if (data->input->users) + if (input_device_enabled(data->input)) icn8318_stop(data->input); mutex_unlock(&data->input->mutex); @@ -166,7 +166,7 @@ static int icn8318_resume(struct device *dev) struct icn8318_data *data = i2c_get_clientdata(to_i2c_client(dev)); mutex_lock(&data->input->mutex); - if (data->input->users) + if (input_device_enabled(data->input)) icn8318_start(data->input); mutex_unlock(&data->input->mutex); diff --git a/drivers/input/touchscreen/cyttsp4_core.c b/drivers/input/touchscreen/cyttsp4_core.c index 02a73d9a4def..dccbcb942fe5 100644 --- a/drivers/input/touchscreen/cyttsp4_core.c +++ b/drivers/input/touchscreen/cyttsp4_core.c @@ -30,6 +30,20 @@ #define CY_CORE_STARTUP_RETRY_COUNT 3 +static const char * const cyttsp4_tch_abs_string[] = { + [CY_TCH_X] = "X", + [CY_TCH_Y] = "Y", + [CY_TCH_P] = "P", + [CY_TCH_T] = "T", + [CY_TCH_E] = "E", + [CY_TCH_O] = "O", + [CY_TCH_W] = "W", + [CY_TCH_MAJ] = "MAJ", + [CY_TCH_MIN] = "MIN", + [CY_TCH_OR] = "OR", + [CY_TCH_NUM_ABS] = "INVALID" +}; + static const u8 ldr_exit[] = { 0xFF, 0x01, 0x3B, 0x00, 0x00, 0x4F, 0x6D, 0x17 }; diff --git a/drivers/input/touchscreen/cyttsp4_core.h b/drivers/input/touchscreen/cyttsp4_core.h index f3e444359440..6262f6e45075 100644 --- a/drivers/input/touchscreen/cyttsp4_core.h +++ b/drivers/input/touchscreen/cyttsp4_core.h @@ -233,20 +233,6 @@ enum cyttsp4_tch_abs { /* for ordering within the extracted touch data array */ CY_TCH_NUM_ABS }; -static const char * const cyttsp4_tch_abs_string[] = { - [CY_TCH_X] = "X", - [CY_TCH_Y] = "Y", - [CY_TCH_P] = "P", - [CY_TCH_T] = "T", - [CY_TCH_E] = "E", - [CY_TCH_O] = "O", - [CY_TCH_W] = "W", - [CY_TCH_MAJ] = "MAJ", - [CY_TCH_MIN] = "MIN", - [CY_TCH_OR] = "OR", - [CY_TCH_NUM_ABS] = "INVALID" -}; - struct cyttsp4_touch { int abs[CY_TCH_NUM_ABS]; }; diff --git a/drivers/input/touchscreen/cyttsp_core.c b/drivers/input/touchscreen/cyttsp_core.c index 697aa2c158f7..73c854f35f33 100644 --- a/drivers/input/touchscreen/cyttsp_core.c +++ b/drivers/input/touchscreen/cyttsp_core.c @@ -479,7 +479,7 @@ static int __maybe_unused cyttsp_suspend(struct device *dev) mutex_lock(&ts->input->mutex); - if (ts->input->users) { + if (input_device_enabled(ts->input)) { retval = cyttsp_disable(ts); if (retval == 0) ts->suspended = true; @@ -496,7 +496,7 @@ static int __maybe_unused cyttsp_resume(struct device *dev) mutex_lock(&ts->input->mutex); - if (ts->input->users) + if (input_device_enabled(ts->input)) cyttsp_enable(ts); ts->suspended = false; diff --git a/drivers/input/touchscreen/edt-ft5x06.c b/drivers/input/touchscreen/edt-ft5x06.c index 6ff81d48da86..2eefbc2485bc 100644 --- a/drivers/input/touchscreen/edt-ft5x06.c +++ b/drivers/input/touchscreen/edt-ft5x06.c @@ -69,6 +69,9 @@ #define EDT_RAW_DATA_RETRIES 100 #define EDT_RAW_DATA_DELAY 1000 /* usec */ +#define EDT_DEFAULT_NUM_X 1024 +#define EDT_DEFAULT_NUM_Y 1024 + enum edt_pmode { EDT_PMODE_NOT_SUPPORTED, EDT_PMODE_HIBERNATE, @@ -977,8 +980,7 @@ static void edt_ft5x06_ts_get_defaults(struct device *dev, } } -static void -edt_ft5x06_ts_get_parameters(struct edt_ft5x06_ts_data *tsdata) +static void edt_ft5x06_ts_get_parameters(struct edt_ft5x06_ts_data *tsdata) { struct edt_reg_addr *reg_addr = &tsdata->reg_addr; @@ -997,21 +999,17 @@ edt_ft5x06_ts_get_parameters(struct edt_ft5x06_ts_data *tsdata) if (reg_addr->reg_report_rate != NO_REGISTER) tsdata->report_rate = edt_ft5x06_register_read(tsdata, reg_addr->reg_report_rate); - if (tsdata->version == EDT_M06 || - tsdata->version == EDT_M09 || - tsdata->version == EDT_M12) { + tsdata->num_x = EDT_DEFAULT_NUM_X; + if (reg_addr->reg_num_x != NO_REGISTER) tsdata->num_x = edt_ft5x06_register_read(tsdata, reg_addr->reg_num_x); + tsdata->num_y = EDT_DEFAULT_NUM_Y; + if (reg_addr->reg_num_y != NO_REGISTER) tsdata->num_y = edt_ft5x06_register_read(tsdata, reg_addr->reg_num_y); - } else { - tsdata->num_x = -1; - tsdata->num_y = -1; - } } -static void -edt_ft5x06_ts_set_regs(struct edt_ft5x06_ts_data *tsdata) +static void edt_ft5x06_ts_set_regs(struct edt_ft5x06_ts_data *tsdata) { struct edt_reg_addr *reg_addr = &tsdata->reg_addr; @@ -1041,22 +1039,25 @@ edt_ft5x06_ts_set_regs(struct edt_ft5x06_ts_data *tsdata) case EV_FT: reg_addr->reg_threshold = EV_REGISTER_THRESHOLD; + reg_addr->reg_report_rate = NO_REGISTER; reg_addr->reg_gain = EV_REGISTER_GAIN; reg_addr->reg_offset = NO_REGISTER; reg_addr->reg_offset_x = EV_REGISTER_OFFSET_X; reg_addr->reg_offset_y = EV_REGISTER_OFFSET_Y; reg_addr->reg_num_x = NO_REGISTER; reg_addr->reg_num_y = NO_REGISTER; - reg_addr->reg_report_rate = NO_REGISTER; break; case GENERIC_FT: /* this is a guesswork */ reg_addr->reg_threshold = M09_REGISTER_THRESHOLD; + reg_addr->reg_report_rate = NO_REGISTER; reg_addr->reg_gain = M09_REGISTER_GAIN; reg_addr->reg_offset = M09_REGISTER_OFFSET; reg_addr->reg_offset_x = NO_REGISTER; reg_addr->reg_offset_y = NO_REGISTER; + reg_addr->reg_num_x = NO_REGISTER; + reg_addr->reg_num_y = NO_REGISTER; break; } } @@ -1195,20 +1196,10 @@ static int edt_ft5x06_ts_probe(struct i2c_client *client, input->id.bustype = BUS_I2C; input->dev.parent = &client->dev; - if (tsdata->version == EDT_M06 || - tsdata->version == EDT_M09 || - tsdata->version == EDT_M12) { - input_set_abs_params(input, ABS_MT_POSITION_X, - 0, tsdata->num_x * 64 - 1, 0, 0); - input_set_abs_params(input, ABS_MT_POSITION_Y, - 0, tsdata->num_y * 64 - 1, 0, 0); - } else { - /* Unknown maximum values. Specify via devicetree */ - input_set_abs_params(input, ABS_MT_POSITION_X, - 0, 65535, 0, 0); - input_set_abs_params(input, ABS_MT_POSITION_Y, - 0, 65535, 0, 0); - } + input_set_abs_params(input, ABS_MT_POSITION_X, + 0, tsdata->num_x * 64 - 1, 0, 0); + input_set_abs_params(input, ABS_MT_POSITION_Y, + 0, tsdata->num_y * 64 - 1, 0, 0); touchscreen_parse_properties(input, true, &tsdata->prop); diff --git a/drivers/input/touchscreen/eeti_ts.c b/drivers/input/touchscreen/eeti_ts.c index 2e1404cd09ec..a639ba7e56ea 100644 --- a/drivers/input/touchscreen/eeti_ts.c +++ b/drivers/input/touchscreen/eeti_ts.c @@ -241,7 +241,7 @@ static int __maybe_unused eeti_ts_suspend(struct device *dev) mutex_lock(&input_dev->mutex); - if (input_dev->users) + if (input_device_enabled(input_dev)) eeti_ts_stop(eeti); mutex_unlock(&input_dev->mutex); @@ -263,7 +263,7 @@ static int __maybe_unused eeti_ts_resume(struct device *dev) mutex_lock(&input_dev->mutex); - if (input_dev->users) + if (input_device_enabled(input_dev)) eeti_ts_start(eeti); mutex_unlock(&input_dev->mutex); diff --git a/drivers/input/touchscreen/ektf2127.c b/drivers/input/touchscreen/ektf2127.c index eadd389cf81f..2d01a8cbfcc6 100644 --- a/drivers/input/touchscreen/ektf2127.c +++ b/drivers/input/touchscreen/ektf2127.c @@ -28,6 +28,7 @@ #define EKTF2127_RESPONSE 0x52 #define EKTF2127_REQUEST 0x53 #define EKTF2127_HELLO 0x55 +#define EKTF2127_REPORT2 0x5a #define EKTF2127_REPORT 0x5d #define EKTF2127_CALIB_DONE 0x66 @@ -95,6 +96,29 @@ static void ektf2127_report_event(struct ektf2127_ts *ts, const u8 *buf) input_sync(ts->input); } +static void ektf2127_report2_contact(struct ektf2127_ts *ts, int slot, + const u8 *buf, bool active) +{ + input_mt_slot(ts->input, slot); + input_mt_report_slot_state(ts->input, MT_TOOL_FINGER, active); + + if (active) { + int x = (buf[0] & 0xf0) << 4 | buf[1]; + int y = (buf[0] & 0x0f) << 8 | buf[2]; + + touchscreen_report_pos(ts->input, &ts->prop, x, y, true); + } +} + +static void ektf2127_report2_event(struct ektf2127_ts *ts, const u8 *buf) +{ + ektf2127_report2_contact(ts, 0, &buf[1], !!(buf[7] & 2)); + ektf2127_report2_contact(ts, 1, &buf[4], !!(buf[7] & 4)); + + input_mt_sync_frame(ts->input); + input_sync(ts->input); +} + static irqreturn_t ektf2127_irq(int irq, void *dev_id) { struct ektf2127_ts *ts = dev_id; @@ -113,6 +137,10 @@ static irqreturn_t ektf2127_irq(int irq, void *dev_id) ektf2127_report_event(ts, buf); break; + case EKTF2127_REPORT2: + ektf2127_report2_event(ts, buf); + break; + case EKTF2127_NOISE: if (buf[1] == EKTF2127_ENV_NOISY) dev_dbg(dev, "Environment is electrically noisy\n"); @@ -154,7 +182,7 @@ static int __maybe_unused ektf2127_suspend(struct device *dev) struct ektf2127_ts *ts = i2c_get_clientdata(to_i2c_client(dev)); mutex_lock(&ts->input->mutex); - if (ts->input->users) + if (input_device_enabled(ts->input)) ektf2127_stop(ts->input); mutex_unlock(&ts->input->mutex); @@ -166,7 +194,7 @@ static int __maybe_unused ektf2127_resume(struct device *dev) struct ektf2127_ts *ts = i2c_get_clientdata(to_i2c_client(dev)); mutex_lock(&ts->input->mutex); - if (ts->input->users) + if (input_device_enabled(ts->input)) ektf2127_start(ts->input); mutex_unlock(&ts->input->mutex); @@ -305,6 +333,7 @@ static int ektf2127_probe(struct i2c_client *client, #ifdef CONFIG_OF static const struct of_device_id ektf2127_of_match[] = { { .compatible = "elan,ektf2127" }, + { .compatible = "elan,ektf2132" }, {} }; MODULE_DEVICE_TABLE(of, ektf2127_of_match); @@ -312,6 +341,7 @@ MODULE_DEVICE_TABLE(of, ektf2127_of_match); static const struct i2c_device_id ektf2127_i2c_id[] = { { "ektf2127", 0 }, + { "ektf2132", 0 }, {} }; MODULE_DEVICE_TABLE(i2c, ektf2127_i2c_id); @@ -327,6 +357,6 @@ static struct i2c_driver ektf2127_driver = { }; module_i2c_driver(ektf2127_driver); -MODULE_DESCRIPTION("ELAN eKTF2127 I2C Touchscreen Driver"); +MODULE_DESCRIPTION("ELAN eKTF2127/eKTF2132 I2C Touchscreen Driver"); MODULE_AUTHOR("Michel Verlaan, Siebren Vroegindeweij"); MODULE_LICENSE("GPL"); diff --git a/drivers/input/touchscreen/elants_i2c.c b/drivers/input/touchscreen/elants_i2c.c index 50c348297e38..d51cb910fba1 100644 --- a/drivers/input/touchscreen/elants_i2c.c +++ b/drivers/input/touchscreen/elants_i2c.c @@ -82,7 +82,7 @@ #define HEADER_REPORT_10_FINGER 0x62 -/* Header (4 bytes) plus 3 fill 10-finger packets */ +/* Header (4 bytes) plus 3 full 10-finger packets */ #define MAX_PACKET_SIZE 169 #define BOOT_TIME_DELAY_MS 50 @@ -97,6 +97,10 @@ #define E_INFO_PHY_SCAN 0xD7 #define E_INFO_PHY_DRIVER 0xD8 +/* FW write command, 0x54 0x?? 0x0, 0x01 */ +#define E_POWER_STATE_SLEEP 0x50 +#define E_POWER_STATE_RESUME 0x58 + #define MAX_RETRIES 3 #define MAX_FW_UPDATE_RETRIES 30 @@ -269,8 +273,8 @@ static int elants_i2c_calibrate(struct elants_data *ts) { struct i2c_client *client = ts->client; int ret, error; - static const u8 w_flashkey[] = { 0x54, 0xC0, 0xE1, 0x5A }; - static const u8 rek[] = { 0x54, 0x29, 0x00, 0x01 }; + static const u8 w_flashkey[] = { CMD_HEADER_WRITE, 0xC0, 0xE1, 0x5A }; + static const u8 rek[] = { CMD_HEADER_WRITE, 0x29, 0x00, 0x01 }; static const u8 rek_resp[] = { CMD_HEADER_REK, 0x66, 0x66, 0x66 }; disable_irq(client->irq); @@ -1388,7 +1392,9 @@ static int __maybe_unused elants_i2c_suspend(struct device *dev) { struct i2c_client *client = to_i2c_client(dev); struct elants_data *ts = i2c_get_clientdata(client); - const u8 set_sleep_cmd[] = { 0x54, 0x50, 0x00, 0x01 }; + const u8 set_sleep_cmd[] = { + CMD_HEADER_WRITE, E_POWER_STATE_SLEEP, 0x00, 0x01 + }; int retry_cnt; int error; @@ -1425,7 +1431,9 @@ static int __maybe_unused elants_i2c_resume(struct device *dev) { struct i2c_client *client = to_i2c_client(dev); struct elants_data *ts = i2c_get_clientdata(client); - const u8 set_active_cmd[] = { 0x54, 0x58, 0x00, 0x01 }; + const u8 set_active_cmd[] = { + CMD_HEADER_WRITE, E_POWER_STATE_RESUME, 0x00, 0x01 + }; int retry_cnt; int error; diff --git a/drivers/input/touchscreen/goodix.c b/drivers/input/touchscreen/goodix.c index 02c75ea385e0..19765f1c04f7 100644 --- a/drivers/input/touchscreen/goodix.c +++ b/drivers/input/touchscreen/goodix.c @@ -193,6 +193,18 @@ static const struct dmi_system_id rotated_screen[] = { }, }, { + .ident = "Teclast X98 Pro", + .matches = { + /* + * Only match BIOS date, because the manufacturers + * BIOS does not report the board name at all + * (sometimes)... + */ + DMI_MATCH(DMI_BOARD_VENDOR, "TECLAST"), + DMI_MATCH(DMI_BIOS_DATE, "10/28/2015"), + }, + }, + { .ident = "WinBook TW100", .matches = { DMI_MATCH(DMI_SYS_VENDOR, "WinBook"), @@ -564,6 +576,7 @@ static void goodix_calc_cfg_checksum_16(struct goodix_ts_data *ts) * * @ts: goodix_ts_data pointer * @cfg: firmware config data + * @len: config data length */ static int goodix_check_cfg(struct goodix_ts_data *ts, const u8 *cfg, int len) { @@ -582,6 +595,7 @@ static int goodix_check_cfg(struct goodix_ts_data *ts, const u8 *cfg, int len) * * @ts: goodix_ts_data pointer * @cfg: config firmware to write to device + * @len: config data length */ static int goodix_send_cfg(struct goodix_ts_data *ts, const u8 *cfg, int len) { @@ -1156,7 +1170,8 @@ static int goodix_configure_dev(struct goodix_ts_data *ts) /** * goodix_config_cb - Callback to finish device init * - * @ts: our goodix_ts_data pointer + * @cfg: firmware config + * @ctx: our goodix_ts_data pointer * * request_firmware_wait callback that finishes * initialization of the device. diff --git a/drivers/input/touchscreen/imx6ul_tsc.c b/drivers/input/touchscreen/imx6ul_tsc.c index cd369f9ac5e6..2d4facf70cdb 100644 --- a/drivers/input/touchscreen/imx6ul_tsc.c +++ b/drivers/input/touchscreen/imx6ul_tsc.c @@ -304,11 +304,10 @@ static irqreturn_t adc_irq_fn(int irq, void *dev_id) { struct imx6ul_tsc *tsc = dev_id; u32 coco; - u32 value; coco = readl(tsc->adc_regs + REG_ADC_HS); if (coco & 0x01) { - value = readl(tsc->adc_regs + REG_ADC_R0); + readl(tsc->adc_regs + REG_ADC_R0); complete(&tsc->completion); } @@ -521,7 +520,7 @@ static int __maybe_unused imx6ul_tsc_suspend(struct device *dev) mutex_lock(&input_dev->mutex); - if (input_dev->users) + if (input_device_enabled(input_dev)) imx6ul_tsc_stop(tsc); mutex_unlock(&input_dev->mutex); @@ -538,7 +537,7 @@ static int __maybe_unused imx6ul_tsc_resume(struct device *dev) mutex_lock(&input_dev->mutex); - if (input_dev->users) + if (input_device_enabled(input_dev)) retval = imx6ul_tsc_start(tsc); mutex_unlock(&input_dev->mutex); diff --git a/drivers/input/touchscreen/ipaq-micro-ts.c b/drivers/input/touchscreen/ipaq-micro-ts.c index 5c3977e1af6f..0eb5689fe65f 100644 --- a/drivers/input/touchscreen/ipaq-micro-ts.c +++ b/drivers/input/touchscreen/ipaq-micro-ts.c @@ -135,7 +135,7 @@ static int __maybe_unused micro_ts_resume(struct device *dev) mutex_lock(&input->mutex); - if (input->users) + if (input_device_enabled(input)) micro_ts_toggle_receive(ts, true); mutex_unlock(&input->mutex); diff --git a/drivers/input/touchscreen/iqs5xx.c b/drivers/input/touchscreen/iqs5xx.c index 3162b68f7374..4fd21bc3ce0f 100644 --- a/drivers/input/touchscreen/iqs5xx.c +++ b/drivers/input/touchscreen/iqs5xx.c @@ -1017,7 +1017,7 @@ static int __maybe_unused iqs5xx_suspend(struct device *dev) mutex_lock(&input->mutex); - if (input->users) + if (input_device_enabled(input)) error = iqs5xx_set_state(iqs5xx->client, IQS5XX_SUSPEND); mutex_unlock(&input->mutex); @@ -1036,7 +1036,7 @@ static int __maybe_unused iqs5xx_resume(struct device *dev) mutex_lock(&input->mutex); - if (input->users) + if (input_device_enabled(input)) error = iqs5xx_set_state(iqs5xx->client, IQS5XX_RESUME); mutex_unlock(&input->mutex); diff --git a/drivers/input/touchscreen/lpc32xx_ts.c b/drivers/input/touchscreen/lpc32xx_ts.c index b2cd9472e2d1..b51450b3d943 100644 --- a/drivers/input/touchscreen/lpc32xx_ts.c +++ b/drivers/input/touchscreen/lpc32xx_ts.c @@ -334,7 +334,7 @@ static int lpc32xx_ts_suspend(struct device *dev) */ mutex_lock(&input->mutex); - if (input->users) { + if (input_device_enabled(input)) { if (device_may_wakeup(dev)) enable_irq_wake(tsc->irq); else @@ -353,7 +353,7 @@ static int lpc32xx_ts_resume(struct device *dev) mutex_lock(&input->mutex); - if (input->users) { + if (input_device_enabled(input)) { if (device_may_wakeup(dev)) disable_irq_wake(tsc->irq); else diff --git a/drivers/input/touchscreen/melfas_mip4.c b/drivers/input/touchscreen/melfas_mip4.c index f67efdd040b2..c0050044a5a9 100644 --- a/drivers/input/touchscreen/melfas_mip4.c +++ b/drivers/input/touchscreen/melfas_mip4.c @@ -1256,7 +1256,7 @@ static int mip4_execute_fw_update(struct mip4_ts *ts, const struct firmware *fw) if (error) return error; - if (ts->input->users) { + if (input_device_enabled(ts->input)) { disable_irq(ts->client->irq); } else { error = mip4_power_on(ts); @@ -1276,7 +1276,7 @@ static int mip4_execute_fw_update(struct mip4_ts *ts, const struct firmware *fw) "Failed to flash firmware: %d\n", error); /* Enable IRQ */ - if (ts->input->users) + if (input_device_enabled(ts->input)) enable_irq(ts->client->irq); else mip4_power_off(ts); @@ -1539,7 +1539,7 @@ static int __maybe_unused mip4_suspend(struct device *dev) if (device_may_wakeup(dev)) ts->wake_irq_enabled = enable_irq_wake(client->irq) == 0; - else if (input->users) + else if (input_device_enabled(input)) mip4_disable(ts); mutex_unlock(&input->mutex); @@ -1557,7 +1557,7 @@ static int __maybe_unused mip4_resume(struct device *dev) if (ts->wake_irq_enabled) disable_irq_wake(client->irq); - else if (input->users) + else if (input_device_enabled(input)) mip4_enable(ts); mutex_unlock(&input->mutex); diff --git a/drivers/input/touchscreen/mms114.c b/drivers/input/touchscreen/mms114.c index 1f96657310b7..16557f51b09d 100644 --- a/drivers/input/touchscreen/mms114.c +++ b/drivers/input/touchscreen/mms114.c @@ -199,7 +199,7 @@ static irqreturn_t mms114_interrupt(int irq, void *dev_id) int error; mutex_lock(&input_dev->mutex); - if (!input_dev->users) { + if (!input_device_enabled(input_dev)) { mutex_unlock(&input_dev->mutex); goto out; } @@ -564,7 +564,7 @@ static int __maybe_unused mms114_suspend(struct device *dev) input_sync(input_dev); mutex_lock(&input_dev->mutex); - if (input_dev->users) + if (input_device_enabled(input_dev)) mms114_stop(data); mutex_unlock(&input_dev->mutex); @@ -579,7 +579,7 @@ static int __maybe_unused mms114_resume(struct device *dev) int error; mutex_lock(&input_dev->mutex); - if (input_dev->users) { + if (input_device_enabled(input_dev)) { error = mms114_start(data); if (error < 0) { mutex_unlock(&input_dev->mutex); diff --git a/drivers/input/touchscreen/pixcir_i2c_ts.c b/drivers/input/touchscreen/pixcir_i2c_ts.c index 9aa098577350..dc148b4bed74 100644 --- a/drivers/input/touchscreen/pixcir_i2c_ts.c +++ b/drivers/input/touchscreen/pixcir_i2c_ts.c @@ -415,14 +415,14 @@ static int __maybe_unused pixcir_i2c_ts_suspend(struct device *dev) mutex_lock(&input->mutex); if (device_may_wakeup(&client->dev)) { - if (!input->users) { + if (!input_device_enabled(input)) { ret = pixcir_start(ts); if (ret) { dev_err(dev, "Failed to start\n"); goto unlock; } } - } else if (input->users) { + } else if (input_device_enabled(input)) { ret = pixcir_stop(ts); } @@ -442,14 +442,14 @@ static int __maybe_unused pixcir_i2c_ts_resume(struct device *dev) mutex_lock(&input->mutex); if (device_may_wakeup(&client->dev)) { - if (!input->users) { + if (!input_device_enabled(input)) { ret = pixcir_stop(ts); if (ret) { dev_err(dev, "Failed to stop\n"); goto unlock; } } - } else if (input->users) { + } else if (input_device_enabled(input)) { ret = pixcir_start(ts); } diff --git a/drivers/input/touchscreen/raydium_i2c_ts.c b/drivers/input/touchscreen/raydium_i2c_ts.c index e694a9b2b1e5..603a948460d6 100644 --- a/drivers/input/touchscreen/raydium_i2c_ts.c +++ b/drivers/input/touchscreen/raydium_i2c_ts.c @@ -137,45 +137,25 @@ struct raydium_data { bool wake_irq_enabled; }; -static int raydium_i2c_xfer(struct i2c_client *client, - u32 addr, void *data, size_t len, bool is_read) -{ - struct raydium_bank_switch_header { - u8 cmd; - __be32 be_addr; - } __packed header = { - .cmd = RM_CMD_BANK_SWITCH, - .be_addr = cpu_to_be32(addr), - }; - - u8 reg_addr = addr & 0xff; - - struct i2c_msg xfer[] = { - { - .addr = client->addr, - .len = sizeof(header), - .buf = (u8 *)&header, - }, - { - .addr = client->addr, - .len = 1, - .buf = ®_addr, - }, - { - .addr = client->addr, - .len = len, - .buf = data, - .flags = is_read ? I2C_M_RD : 0, - } - }; +/* + * Header to be sent for RM_CMD_BANK_SWITCH command. This is used by + * raydium_i2c_{read|send} below. + */ +struct __packed raydium_bank_switch_header { + u8 cmd; + __be32 be_addr; +}; +static int raydium_i2c_xfer(struct i2c_client *client, u32 addr, + struct i2c_msg *xfer, size_t xfer_count) +{ + int ret; /* * If address is greater than 255, then RM_CMD_BANK_SWITCH needs to be * sent first. Else, skip the header i.e. xfer[0]. */ int xfer_start_idx = (addr > 0xff) ? 0 : 1; - size_t xfer_count = ARRAY_SIZE(xfer) - xfer_start_idx; - int ret; + xfer_count -= xfer_start_idx; ret = i2c_transfer(client->adapter, &xfer[xfer_start_idx], xfer_count); if (likely(ret == xfer_count)) @@ -189,10 +169,46 @@ static int raydium_i2c_send(struct i2c_client *client, { int tries = 0; int error; + u8 *tx_buf; + u8 reg_addr = addr & 0xff; + + tx_buf = kmalloc(len + 1, GFP_KERNEL); + if (!tx_buf) + return -ENOMEM; + + tx_buf[0] = reg_addr; + memcpy(tx_buf + 1, data, len); do { - error = raydium_i2c_xfer(client, addr, (void *)data, len, - false); + struct raydium_bank_switch_header header = { + .cmd = RM_CMD_BANK_SWITCH, + .be_addr = cpu_to_be32(addr), + }; + + /* + * Perform as a single i2c_transfer transaction to ensure that + * no other I2C transactions are initiated on the bus to any + * other device in between. Initiating transacations to other + * devices after RM_CMD_BANK_SWITCH is sent is known to cause + * issues. This is also why regmap infrastructure cannot be used + * for this driver. Regmap handles page(bank) switch and reads + * as separate i2c_transfer() operations. This can result in + * problems if the Raydium device is on a shared I2C bus. + */ + struct i2c_msg xfer[] = { + { + .addr = client->addr, + .len = sizeof(header), + .buf = (u8 *)&header, + }, + { + .addr = client->addr, + .len = len + 1, + .buf = tx_buf, + }, + }; + + error = raydium_i2c_xfer(client, addr, xfer, ARRAY_SIZE(xfer)); if (likely(!error)) return 0; @@ -206,12 +222,46 @@ static int raydium_i2c_send(struct i2c_client *client, static int raydium_i2c_read(struct i2c_client *client, u32 addr, void *data, size_t len) { - size_t xfer_len; int error; while (len) { - xfer_len = min_t(size_t, len, RM_MAX_READ_SIZE); - error = raydium_i2c_xfer(client, addr, data, xfer_len, true); + u8 reg_addr = addr & 0xff; + struct raydium_bank_switch_header header = { + .cmd = RM_CMD_BANK_SWITCH, + .be_addr = cpu_to_be32(addr), + }; + size_t xfer_len = min_t(size_t, len, RM_MAX_READ_SIZE); + + /* + * Perform as a single i2c_transfer transaction to ensure that + * no other I2C transactions are initiated on the bus to any + * other device in between. Initiating transacations to other + * devices after RM_CMD_BANK_SWITCH is sent is known to cause + * issues. This is also why regmap infrastructure cannot be used + * for this driver. Regmap handles page(bank) switch and writes + * as separate i2c_transfer() operations. This can result in + * problems if the Raydium device is on a shared I2C bus. + */ + struct i2c_msg xfer[] = { + { + .addr = client->addr, + .len = sizeof(header), + .buf = (u8 *)&header, + }, + { + .addr = client->addr, + .len = 1, + .buf = ®_addr, + }, + { + .addr = client->addr, + .len = xfer_len, + .buf = data, + .flags = I2C_M_RD, + } + }; + + error = raydium_i2c_xfer(client, addr, xfer, ARRAY_SIZE(xfer)); if (unlikely(error)) return error; diff --git a/drivers/input/touchscreen/resistive-adc-touch.c b/drivers/input/touchscreen/resistive-adc-touch.c index cfc8bb4553f7..e50af30183f4 100644 --- a/drivers/input/touchscreen/resistive-adc-touch.c +++ b/drivers/input/touchscreen/resistive-adc-touch.c @@ -23,7 +23,7 @@ #define GRTS_MAX_POS_MASK GENMASK(11, 0) /** - * grts_state - generic resistive touch screen information struct + * struct grts_state - generic resistive touch screen information struct * @pressure_min: number representing the minimum for the pressure * @pressure: are we getting pressure info or not * @iio_chans: list of channels acquired diff --git a/drivers/input/touchscreen/st1232.c b/drivers/input/touchscreen/st1232.c index 63b29c7279e2..bda96762744e 100644 --- a/drivers/input/touchscreen/st1232.c +++ b/drivers/input/touchscreen/st1232.c @@ -26,15 +26,14 @@ #define ST1232_TS_NAME "st1232-ts" #define ST1633_TS_NAME "st1633-ts" +#define REG_XY_RESOLUTION 0x04 +#define REG_XY_COORDINATES 0x12 #define ST_TS_MAX_FINGERS 10 struct st_chip_info { bool have_z; - u16 max_x; - u16 max_y; u16 max_area; u16 max_fingers; - u8 start_reg; }; struct st1232_ts_data { @@ -48,15 +47,14 @@ struct st1232_ts_data { u8 *read_buf; }; -static int st1232_ts_read_data(struct st1232_ts_data *ts) +static int st1232_ts_read_data(struct st1232_ts_data *ts, u8 reg) { struct i2c_client *client = ts->client; - u8 start_reg = ts->chip_info->start_reg; struct i2c_msg msg[] = { { .addr = client->addr, - .len = sizeof(start_reg), - .buf = &start_reg, + .len = sizeof(reg), + .buf = ®, }, { .addr = client->addr, @@ -74,6 +72,25 @@ static int st1232_ts_read_data(struct st1232_ts_data *ts) return 0; } +static int st1232_ts_read_resolution(struct st1232_ts_data *ts, u16 *max_x, + u16 *max_y) +{ + u8 *buf; + int error; + + /* select resolution register */ + error = st1232_ts_read_data(ts, REG_XY_RESOLUTION); + if (error) + return error; + + buf = ts->read_buf; + + *max_x = ((buf[0] & 0x0070) << 4) | buf[1]; + *max_y = ((buf[0] & 0x0007) << 8) | buf[2]; + + return 0; +} + static int st1232_ts_parse_and_report(struct st1232_ts_data *ts) { struct input_dev *input = ts->input_dev; @@ -123,7 +140,7 @@ static irqreturn_t st1232_ts_irq_handler(int irq, void *dev_id) int count; int error; - error = st1232_ts_read_data(ts); + error = st1232_ts_read_data(ts, REG_XY_COORDINATES); if (error) goto out; @@ -157,20 +174,14 @@ static void st1232_ts_power_off(void *data) static const struct st_chip_info st1232_chip_info = { .have_z = true, - .max_x = 0x31f, /* 800 - 1 */ - .max_y = 0x1df, /* 480 -1 */ .max_area = 0xff, .max_fingers = 2, - .start_reg = 0x12, }; static const struct st_chip_info st1633_chip_info = { .have_z = false, - .max_x = 0x13f, /* 320 - 1 */ - .max_y = 0x1df, /* 480 -1 */ .max_area = 0x00, .max_fingers = 5, - .start_reg = 0x12, }; static int st1232_ts_probe(struct i2c_client *client, @@ -179,6 +190,7 @@ static int st1232_ts_probe(struct i2c_client *client, const struct st_chip_info *match; struct st1232_ts_data *ts; struct input_dev *input_dev; + u16 max_x, max_y; int error; match = device_get_match_data(&client->dev); @@ -239,14 +251,22 @@ static int st1232_ts_probe(struct i2c_client *client, input_dev->name = "st1232-touchscreen"; input_dev->id.bustype = BUS_I2C; + /* Read resolution from the chip */ + error = st1232_ts_read_resolution(ts, &max_x, &max_y); + if (error) { + dev_err(&client->dev, + "Failed to read resolution: %d\n", error); + return error; + } + if (ts->chip_info->have_z) input_set_abs_params(input_dev, ABS_MT_TOUCH_MAJOR, 0, ts->chip_info->max_area, 0, 0); input_set_abs_params(input_dev, ABS_MT_POSITION_X, - 0, ts->chip_info->max_x, 0, 0); + 0, max_x, 0, 0); input_set_abs_params(input_dev, ABS_MT_POSITION_Y, - 0, ts->chip_info->max_y, 0, 0); + 0, max_y, 0, 0); touchscreen_parse_properties(input_dev, true, &ts->prop); diff --git a/drivers/input/touchscreen/stmpe-ts.c b/drivers/input/touchscreen/stmpe-ts.c index 7e16fcfe3b95..cd747725589b 100644 --- a/drivers/input/touchscreen/stmpe-ts.c +++ b/drivers/input/touchscreen/stmpe-ts.c @@ -14,6 +14,7 @@ #include <linux/of.h> #include <linux/platform_device.h> #include <linux/input.h> +#include <linux/input/touchscreen.h> #include <linux/slab.h> #include <linux/delay.h> #include <linux/i2c.h> @@ -72,6 +73,7 @@ struct stmpe_touch { struct input_dev *idev; struct delayed_work work; struct device *dev; + struct touchscreen_properties prop; u8 ave_ctrl; u8 touch_det_delay; u8 settling; @@ -150,8 +152,7 @@ static irqreturn_t stmpe_ts_handler(int irq, void *data) y = ((data_set[1] & 0xf) << 8) | data_set[2]; z = data_set[3]; - input_report_abs(ts->idev, ABS_X, x); - input_report_abs(ts->idev, ABS_Y, y); + touchscreen_report_pos(ts->idev, &ts->prop, x, y, false); input_report_abs(ts->idev, ABS_PRESSURE, z); input_report_key(ts->idev, BTN_TOUCH, 1); input_sync(ts->idev); @@ -337,6 +338,8 @@ static int stmpe_input_probe(struct platform_device *pdev) input_set_abs_params(idev, ABS_Y, 0, XY_MASK, 0, 0); input_set_abs_params(idev, ABS_PRESSURE, 0x0, 0xff, 0, 0); + touchscreen_parse_properties(idev, false, &ts->prop); + error = input_register_device(idev); if (error) { dev_err(&pdev->dev, "Could not register input device\n"); diff --git a/drivers/input/touchscreen/surface3_spi.c b/drivers/input/touchscreen/surface3_spi.c index ce4828b1415a..731454599fce 100644 --- a/drivers/input/touchscreen/surface3_spi.c +++ b/drivers/input/touchscreen/surface3_spi.c @@ -219,7 +219,7 @@ static void surface3_spi_power(struct surface3_ts_data *data, bool on) /** * surface3_spi_get_gpio_config - Get GPIO config from ACPI/DT * - * @ts: surface3_spi_ts_data pointer + * @data: surface3_spi_ts_data pointer */ static int surface3_spi_get_gpio_config(struct surface3_ts_data *data) { diff --git a/drivers/input/touchscreen/ucb1400_ts.c b/drivers/input/touchscreen/ucb1400_ts.c index 807d39e18091..e3f2c940ef3d 100644 --- a/drivers/input/touchscreen/ucb1400_ts.c +++ b/drivers/input/touchscreen/ucb1400_ts.c @@ -410,7 +410,7 @@ static int __maybe_unused ucb1400_ts_suspend(struct device *dev) mutex_lock(&idev->mutex); - if (idev->users) + if (input_device_enabled(idev)) ucb1400_ts_stop(ucb); mutex_unlock(&idev->mutex); @@ -424,7 +424,7 @@ static int __maybe_unused ucb1400_ts_resume(struct device *dev) mutex_lock(&idev->mutex); - if (idev->users) + if (input_device_enabled(idev)) ucb1400_ts_start(ucb); mutex_unlock(&idev->mutex); diff --git a/drivers/input/touchscreen/wm97xx-core.c b/drivers/input/touchscreen/wm97xx-core.c index 0a174bd82915..78d2ee99f37a 100644 --- a/drivers/input/touchscreen/wm97xx-core.c +++ b/drivers/input/touchscreen/wm97xx-core.c @@ -194,7 +194,7 @@ EXPORT_SYMBOL_GPL(wm97xx_get_gpio); * wm97xx_set_gpio - Set the status of a codec GPIO. * @wm: wm97xx device. * @gpio: gpio - * + * @status: status * * Set the status of a codec GPIO pin */ @@ -806,23 +806,25 @@ static int __maybe_unused wm97xx_suspend(struct device *dev) else suspend_mode = 0; - if (wm->input_dev->users) + mutex_lock(&wm->input_dev->mutex); + if (input_device_enabled(wm->input_dev)) cancel_delayed_work_sync(&wm->ts_reader); /* Power down the digitiser (bypassing the cache for resume) */ reg = wm97xx_reg_read(wm, AC97_WM97XX_DIGITISER2); reg &= ~WM97XX_PRP_DET_DIG; - if (wm->input_dev->users) + if (input_device_enabled(wm->input_dev)) reg |= suspend_mode; wm->ac97->bus->ops->write(wm->ac97, AC97_WM97XX_DIGITISER2, reg); /* WM9713 has an additional power bit - turn it off if there * are no users or if suspend mode is zero. */ if (wm->id == WM9713_ID2 && - (!wm->input_dev->users || !suspend_mode)) { + (!input_device_enabled(wm->input_dev) || !suspend_mode)) { reg = wm97xx_reg_read(wm, AC97_EXTENDED_MID) | 0x8000; wm97xx_reg_write(wm, AC97_EXTENDED_MID, reg); } + mutex_unlock(&wm->input_dev->mutex); return 0; } @@ -831,11 +833,12 @@ static int __maybe_unused wm97xx_resume(struct device *dev) { struct wm97xx *wm = dev_get_drvdata(dev); + mutex_lock(&wm->input_dev->mutex); /* restore digitiser and gpios */ if (wm->id == WM9713_ID2) { wm97xx_reg_write(wm, AC97_WM9713_DIG1, wm->dig[0]); wm97xx_reg_write(wm, 0x5a, wm->misc); - if (wm->input_dev->users) { + if (input_device_enabled(wm->input_dev)) { u16 reg; reg = wm97xx_reg_read(wm, AC97_EXTENDED_MID) & 0x7fff; wm97xx_reg_write(wm, AC97_EXTENDED_MID, reg); @@ -852,11 +855,12 @@ static int __maybe_unused wm97xx_resume(struct device *dev) wm97xx_reg_write(wm, AC97_GPIO_STATUS, wm->gpio[4]); wm97xx_reg_write(wm, AC97_MISC_AFE, wm->gpio[5]); - if (wm->input_dev->users && !wm->pen_irq) { + if (input_device_enabled(wm->input_dev) && !wm->pen_irq) { wm->ts_reader_interval = wm->ts_reader_min_interval; queue_delayed_work(wm->ts_workq, &wm->ts_reader, wm->ts_reader_interval); } + mutex_unlock(&wm->input_dev->mutex); return 0; } diff --git a/drivers/input/touchscreen/zforce_ts.c b/drivers/input/touchscreen/zforce_ts.c index 5230519b0f74..495629628af6 100644 --- a/drivers/input/touchscreen/zforce_ts.c +++ b/drivers/input/touchscreen/zforce_ts.c @@ -626,14 +626,14 @@ static int __maybe_unused zforce_suspend(struct device *dev) dev_dbg(&client->dev, "suspend while being a wakeup source\n"); /* Need to start device, if not open, to be a wakeup source. */ - if (!input->users) { + if (!input_device_enabled(input)) { ret = zforce_start(ts); if (ret) goto unlock; } enable_irq_wake(client->irq); - } else if (input->users) { + } else if (input_device_enabled(input)) { dev_dbg(&client->dev, "suspend without being a wakeup source\n"); @@ -670,12 +670,12 @@ static int __maybe_unused zforce_resume(struct device *dev) disable_irq_wake(client->irq); /* need to stop device if it was not open on suspend */ - if (!input->users) { + if (!input_device_enabled(input)) { ret = zforce_stop(ts); if (ret) goto unlock; } - } else if (input->users) { + } else if (input_device_enabled(input)) { dev_dbg(&client->dev, "resume without being a wakeup source\n"); enable_irq(client->irq); diff --git a/drivers/input/touchscreen/zinitix.c b/drivers/input/touchscreen/zinitix.c index 1acc2eb2bcb3..a3e3adbabc67 100644 --- a/drivers/input/touchscreen/zinitix.c +++ b/drivers/input/touchscreen/zinitix.c @@ -532,7 +532,7 @@ static int __maybe_unused zinitix_suspend(struct device *dev) mutex_lock(&bt541->input_dev->mutex); - if (bt541->input_dev->users) + if (input_device_enabled(bt541->input_dev)) zinitix_stop(bt541); mutex_unlock(&bt541->input_dev->mutex); @@ -548,7 +548,7 @@ static int __maybe_unused zinitix_resume(struct device *dev) mutex_lock(&bt541->input_dev->mutex); - if (bt541->input_dev->users) + if (input_device_enabled(bt541->input_dev)) ret = zinitix_start(bt541); mutex_unlock(&bt541->input_dev->mutex); |