diff options
Diffstat (limited to 'drivers/iio')
64 files changed, 599 insertions, 342 deletions
diff --git a/drivers/iio/Kconfig b/drivers/iio/Kconfig index 5bd51853b15e..3c0da322ece7 100644 --- a/drivers/iio/Kconfig +++ b/drivers/iio/Kconfig @@ -70,6 +70,7 @@ config IIO_TRIGGERED_EVENT source "drivers/iio/accel/Kconfig" source "drivers/iio/adc/Kconfig" +source "drivers/iio/addac/Kconfig" source "drivers/iio/afe/Kconfig" source "drivers/iio/amplifiers/Kconfig" source "drivers/iio/chemical/Kconfig" diff --git a/drivers/iio/Makefile b/drivers/iio/Makefile index bff682ad1cfb..96fd43b2ef7c 100644 --- a/drivers/iio/Makefile +++ b/drivers/iio/Makefile @@ -15,6 +15,7 @@ obj-$(CONFIG_IIO_TRIGGERED_EVENT) += industrialio-triggered-event.o obj-y += accel/ obj-y += adc/ +obj-y += addac/ obj-y += afe/ obj-y += amplifiers/ obj-y += buffer/ diff --git a/drivers/iio/accel/bma180.c b/drivers/iio/accel/bma180.c index acf1cc2bee07..014788ea493a 100644 --- a/drivers/iio/accel/bma180.c +++ b/drivers/iio/accel/bma180.c @@ -793,11 +793,12 @@ static int bma180_probe(struct i2c_client *client, data->trig->dev.parent = &client->dev; data->trig->ops = &bma180_trigger_ops; iio_trigger_set_drvdata(data->trig, indio_dev); - indio_dev->trig = iio_trigger_get(data->trig); ret = iio_trigger_register(data->trig); if (ret) goto err_trigger_free; + + indio_dev->trig = iio_trigger_get(data->trig); } ret = iio_triggered_buffer_setup(indio_dev, NULL, diff --git a/drivers/iio/accel/hid-sensor-accel-3d.c b/drivers/iio/accel/hid-sensor-accel-3d.c index f908476fa095..a4e0e2b129bc 100644 --- a/drivers/iio/accel/hid-sensor-accel-3d.c +++ b/drivers/iio/accel/hid-sensor-accel-3d.c @@ -279,6 +279,7 @@ static int accel_3d_capture_sample(struct hid_sensor_hub_device *hsdev, hid_sensor_convert_timestamp( &accel_state->common_attributes, *(int64_t *)raw_data); + ret = 0; break; default: break; diff --git a/drivers/iio/accel/mma8452.c b/drivers/iio/accel/mma8452.c index eaaee6f2a978..74942bfc676a 100644 --- a/drivers/iio/accel/mma8452.c +++ b/drivers/iio/accel/mma8452.c @@ -1489,10 +1489,14 @@ static int mma8452_reset(struct i2c_client *client) int i; int ret; - ret = i2c_smbus_write_byte_data(client, MMA8452_CTRL_REG2, + /* + * Find on fxls8471, after config reset bit, it reset immediately, + * and will not give ACK, so here do not check the return value. + * The following code will read the reset register, and check whether + * this reset works. + */ + i2c_smbus_write_byte_data(client, MMA8452_CTRL_REG2, MMA8452_CTRL_REG2_RST); - if (ret < 0) - return ret; for (i = 0; i < 10; i++) { usleep_range(100, 200); diff --git a/drivers/iio/accel/mma9551_core.c b/drivers/iio/accel/mma9551_core.c index 666e7a04a7d7..9bb5c2fea08c 100644 --- a/drivers/iio/accel/mma9551_core.c +++ b/drivers/iio/accel/mma9551_core.c @@ -296,9 +296,12 @@ int mma9551_read_config_word(struct i2c_client *client, u8 app_id, ret = mma9551_transfer(client, app_id, MMA9551_CMD_READ_CONFIG, reg, NULL, 0, (u8 *)&v, 2); + if (ret < 0) + return ret; + *val = be16_to_cpu(v); - return ret; + return 0; } EXPORT_SYMBOL(mma9551_read_config_word); @@ -354,9 +357,12 @@ int mma9551_read_status_word(struct i2c_client *client, u8 app_id, ret = mma9551_transfer(client, app_id, MMA9551_CMD_READ_STATUS, reg, NULL, 0, (u8 *)&v, 2); + if (ret < 0) + return ret; + *val = be16_to_cpu(v); - return ret; + return 0; } EXPORT_SYMBOL(mma9551_read_status_word); diff --git a/drivers/iio/accel/mxc4005.c b/drivers/iio/accel/mxc4005.c index d81b02642a0b..110b7ea76ef2 100644 --- a/drivers/iio/accel/mxc4005.c +++ b/drivers/iio/accel/mxc4005.c @@ -462,8 +462,6 @@ static int mxc4005_probe(struct i2c_client *client, data->dready_trig->dev.parent = &client->dev; data->dready_trig->ops = &mxc4005_trigger_ops; iio_trigger_set_drvdata(data->dready_trig, indio_dev); - indio_dev->trig = data->dready_trig; - iio_trigger_get(indio_dev->trig); ret = devm_iio_trigger_register(&client->dev, data->dready_trig); if (ret) { @@ -471,6 +469,8 @@ static int mxc4005_probe(struct i2c_client *client, "failed to register trigger\n"); return ret; } + + indio_dev->trig = iio_trigger_get(data->dready_trig); } return devm_iio_device_register(&client->dev, indio_dev); diff --git a/drivers/iio/adc/Kconfig b/drivers/iio/adc/Kconfig index cb5788084299..b39d5ad15744 100644 --- a/drivers/iio/adc/Kconfig +++ b/drivers/iio/adc/Kconfig @@ -840,22 +840,6 @@ config STMPE_ADC Say yes here to build support for ST Microelectronics STMPE built-in ADC block (stmpe811). -config STX104 - tristate "Apex Embedded Systems STX104 driver" - depends on PC104 && X86 - select ISA_BUS_API - select GPIOLIB - help - Say yes here to build support for the Apex Embedded Systems STX104 - integrated analog PC/104 card. - - This driver supports the 16 channels of single-ended (8 channels of - differential) analog inputs, 2 channels of analog output, 4 digital - inputs, and 4 digital outputs provided by the STX104. - - The base port addresses for the devices may be configured via the base - array module parameter. - config SUN4I_GPADC tristate "Support for the Allwinner SoCs GPADC" depends on IIO diff --git a/drivers/iio/adc/Makefile b/drivers/iio/adc/Makefile index ef9cc485fb67..d0b11502102e 100644 --- a/drivers/iio/adc/Makefile +++ b/drivers/iio/adc/Makefile @@ -72,7 +72,6 @@ obj-$(CONFIG_RCAR_GYRO_ADC) += rcar-gyroadc.o obj-$(CONFIG_ROCKCHIP_SARADC) += rockchip_saradc.o obj-$(CONFIG_SC27XX_ADC) += sc27xx_adc.o obj-$(CONFIG_SPEAR_ADC) += spear_adc.o -obj-$(CONFIG_STX104) += stx104.o obj-$(CONFIG_SUN4I_GPADC) += sun4i-gpadc-iio.o obj-$(CONFIG_STM32_ADC_CORE) += stm32-adc-core.o obj-$(CONFIG_STM32_ADC) += stm32-adc.o diff --git a/drivers/iio/adc/ad7124.c b/drivers/iio/adc/ad7124.c index 635cc1e7b123..793a803919c5 100644 --- a/drivers/iio/adc/ad7124.c +++ b/drivers/iio/adc/ad7124.c @@ -142,7 +142,6 @@ static const struct iio_chan_spec ad7124_channel_template = { .sign = 'u', .realbits = 24, .storagebits = 32, - .shift = 8, .endianness = IIO_BE, }, }; diff --git a/drivers/iio/adc/ad_sigma_delta.c b/drivers/iio/adc/ad_sigma_delta.c index 2640b75fb774..a2171c887561 100644 --- a/drivers/iio/adc/ad_sigma_delta.c +++ b/drivers/iio/adc/ad_sigma_delta.c @@ -283,10 +283,10 @@ int ad_sigma_delta_single_conversion(struct iio_dev *indio_dev, unsigned int data_reg; int ret = 0; - if (iio_buffer_enabled(indio_dev)) - return -EBUSY; + ret = iio_device_claim_direct_mode(indio_dev); + if (ret) + return ret; - mutex_lock(&indio_dev->mlock); ad_sigma_delta_set_channel(sigma_delta, chan->address); spi_bus_lock(sigma_delta->spi->master); @@ -325,7 +325,7 @@ out: ad_sigma_delta_set_mode(sigma_delta, AD_SD_MODE_IDLE); sigma_delta->bus_locked = false; spi_bus_unlock(sigma_delta->spi->master); - mutex_unlock(&indio_dev->mlock); + iio_device_release_direct_mode(indio_dev); if (ret) return ret; diff --git a/drivers/iio/adc/at91-sama5d2_adc.c b/drivers/iio/adc/at91-sama5d2_adc.c index 8854da453669..e84a4c5150e2 100644 --- a/drivers/iio/adc/at91-sama5d2_adc.c +++ b/drivers/iio/adc/at91-sama5d2_adc.c @@ -73,7 +73,7 @@ #define AT91_SAMA5D2_MR_ANACH BIT(23) /* Tracking Time */ #define AT91_SAMA5D2_MR_TRACKTIM(v) ((v) << 24) -#define AT91_SAMA5D2_MR_TRACKTIM_MAX 0xff +#define AT91_SAMA5D2_MR_TRACKTIM_MAX 0xf /* Transfer Time */ #define AT91_SAMA5D2_MR_TRANSFER(v) ((v) << 28) #define AT91_SAMA5D2_MR_TRANSFER_MAX 0x3 @@ -983,7 +983,7 @@ static struct iio_trigger *at91_adc_allocate_trigger(struct iio_dev *indio, trig = devm_iio_trigger_alloc(&indio->dev, "%s-dev%d-%s", indio->name, indio->id, trigger_name); if (!trig) - return NULL; + return ERR_PTR(-ENOMEM); trig->dev.parent = indio->dev.parent; iio_trigger_set_drvdata(trig, indio); @@ -1321,10 +1321,12 @@ static int at91_adc_read_info_raw(struct iio_dev *indio_dev, ret = at91_adc_read_position(st, chan->channel, &tmp_val); *val = tmp_val; + if (ret > 0) + ret = at91_adc_adjust_val_osr(st, val); mutex_unlock(&st->lock); iio_device_release_direct_mode(indio_dev); - return at91_adc_adjust_val_osr(st, val); + return ret; } if (chan->type == IIO_PRESSURE) { ret = iio_device_claim_direct_mode(indio_dev); @@ -1335,10 +1337,12 @@ static int at91_adc_read_info_raw(struct iio_dev *indio_dev, ret = at91_adc_read_pressure(st, chan->channel, &tmp_val); *val = tmp_val; + if (ret > 0) + ret = at91_adc_adjust_val_osr(st, val); mutex_unlock(&st->lock); iio_device_release_direct_mode(indio_dev); - return at91_adc_adjust_val_osr(st, val); + return ret; } /* in this case we have a voltage channel */ @@ -1429,16 +1433,20 @@ static int at91_adc_write_raw(struct iio_dev *indio_dev, /* if no change, optimize out */ if (val == st->oversampling_ratio) return 0; + mutex_lock(&st->lock); st->oversampling_ratio = val; /* update ratio */ at91_adc_config_emr(st); + mutex_unlock(&st->lock); return 0; case IIO_CHAN_INFO_SAMP_FREQ: if (val < st->soc_info.min_sample_rate || val > st->soc_info.max_sample_rate) return -EINVAL; + mutex_lock(&st->lock); at91_adc_setup_samp_freq(indio_dev, val); + mutex_unlock(&st->lock); return 0; default: return -EINVAL; diff --git a/drivers/iio/adc/at91_adc.c b/drivers/iio/adc/at91_adc.c index abe99856c823..cc81b35ca47a 100644 --- a/drivers/iio/adc/at91_adc.c +++ b/drivers/iio/adc/at91_adc.c @@ -616,8 +616,10 @@ static struct iio_trigger *at91_adc_allocate_trigger(struct iio_dev *idev, trig->ops = &at91_adc_trigger_ops; ret = iio_trigger_register(trig); - if (ret) + if (ret) { + iio_trigger_free(trig); return NULL; + } return trig; } diff --git a/drivers/iio/adc/axp288_adc.c b/drivers/iio/adc/axp288_adc.c index 8ea2aed6d6f5..99ceaa09ef39 100644 --- a/drivers/iio/adc/axp288_adc.c +++ b/drivers/iio/adc/axp288_adc.c @@ -196,6 +196,14 @@ static const struct dmi_system_id axp288_adc_ts_bias_override[] = { }, .driver_data = (void *)(uintptr_t)AXP288_ADC_TS_BIAS_80UA, }, + { + /* Nuvision Solo 10 Draw */ + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "TMAX"), + DMI_MATCH(DMI_PRODUCT_NAME, "TM101W610L"), + }, + .driver_data = (void *)(uintptr_t)AXP288_ADC_TS_BIAS_80UA, + }, {} }; diff --git a/drivers/iio/adc/berlin2-adc.c b/drivers/iio/adc/berlin2-adc.c index 72d8fa94ab31..86fdfea32979 100644 --- a/drivers/iio/adc/berlin2-adc.c +++ b/drivers/iio/adc/berlin2-adc.c @@ -289,8 +289,10 @@ static int berlin2_adc_probe(struct platform_device *pdev) int ret; indio_dev = devm_iio_device_alloc(&pdev->dev, sizeof(*priv)); - if (!indio_dev) + if (!indio_dev) { + of_node_put(parent_np); return -ENOMEM; + } priv = iio_priv(indio_dev); platform_set_drvdata(pdev, indio_dev); diff --git a/drivers/iio/adc/exynos_adc.c b/drivers/iio/adc/exynos_adc.c index 42a3ced11fbd..234f9c37aa10 100644 --- a/drivers/iio/adc/exynos_adc.c +++ b/drivers/iio/adc/exynos_adc.c @@ -804,16 +804,26 @@ static int exynos_adc_probe(struct platform_device *pdev) } } + /* leave out any TS related code if unreachable */ + if (IS_REACHABLE(CONFIG_INPUT)) { + has_ts = of_property_read_bool(pdev->dev.of_node, + "has-touchscreen") || pdata; + } + irq = platform_get_irq(pdev, 0); if (irq < 0) return irq; info->irq = irq; - irq = platform_get_irq(pdev, 1); - if (irq == -EPROBE_DEFER) - return irq; + if (has_ts) { + irq = platform_get_irq(pdev, 1); + if (irq == -EPROBE_DEFER) + return irq; - info->tsirq = irq; + info->tsirq = irq; + } else { + info->tsirq = -1; + } info->dev = &pdev->dev; @@ -880,12 +890,6 @@ static int exynos_adc_probe(struct platform_device *pdev) if (info->data->init_hw) info->data->init_hw(info); - /* leave out any TS related code if unreachable */ - if (IS_REACHABLE(CONFIG_INPUT)) { - has_ts = of_property_read_bool(pdev->dev.of_node, - "has-touchscreen") || pdata; - } - if (pdata) info->delay = pdata->delay; else diff --git a/drivers/iio/adc/mcp3911.c b/drivers/iio/adc/mcp3911.c index dd52f08ec82e..4e2e8e819b1e 100644 --- a/drivers/iio/adc/mcp3911.c +++ b/drivers/iio/adc/mcp3911.c @@ -38,8 +38,8 @@ #define MCP3911_CHANNEL(x) (MCP3911_REG_CHANNEL0 + x * 3) #define MCP3911_OFFCAL(x) (MCP3911_REG_OFFCAL_CH0 + x * 6) -/* Internal voltage reference in uV */ -#define MCP3911_INT_VREF_UV 1200000 +/* Internal voltage reference in mV */ +#define MCP3911_INT_VREF_MV 1200 #define MCP3911_REG_READ(reg, id) ((((reg) << 1) | ((id) << 5) | (1 << 0)) & 0xff) #define MCP3911_REG_WRITE(reg, id) ((((reg) << 1) | ((id) << 5) | (0 << 0)) & 0xff) @@ -111,6 +111,8 @@ static int mcp3911_read_raw(struct iio_dev *indio_dev, if (ret) goto out; + *val = sign_extend32(*val, 23); + ret = IIO_VAL_INT; break; @@ -135,11 +137,18 @@ static int mcp3911_read_raw(struct iio_dev *indio_dev, *val = ret / 1000; } else { - *val = MCP3911_INT_VREF_UV; + *val = MCP3911_INT_VREF_MV; } - *val2 = 24; - ret = IIO_VAL_FRACTIONAL_LOG2; + /* + * For 24bit Conversion + * Raw = ((Voltage)/(Vref) * 2^23 * Gain * 1.5 + * Voltage = Raw * (Vref)/(2^23 * Gain * 1.5) + */ + + /* val2 = (2^23 * 1.5) */ + *val2 = 12582912; + ret = IIO_VAL_FRACTIONAL; break; } diff --git a/drivers/iio/adc/meson_saradc.c b/drivers/iio/adc/meson_saradc.c index 7b27306330a3..1a82be03624c 100644 --- a/drivers/iio/adc/meson_saradc.c +++ b/drivers/iio/adc/meson_saradc.c @@ -71,7 +71,7 @@ #define MESON_SAR_ADC_REG3_PANEL_DETECT_COUNT_MASK GENMASK(20, 18) #define MESON_SAR_ADC_REG3_PANEL_DETECT_FILTER_TB_MASK GENMASK(17, 16) #define MESON_SAR_ADC_REG3_ADC_CLK_DIV_SHIFT 10 - #define MESON_SAR_ADC_REG3_ADC_CLK_DIV_WIDTH 5 + #define MESON_SAR_ADC_REG3_ADC_CLK_DIV_WIDTH 6 #define MESON_SAR_ADC_REG3_BLOCK_DLY_SEL_MASK GENMASK(9, 8) #define MESON_SAR_ADC_REG3_BLOCK_DLY_MASK GENMASK(7, 0) diff --git a/drivers/iio/adc/mxs-lradc-adc.c b/drivers/iio/adc/mxs-lradc-adc.c index 01f85bbe6a2e..e681adaedcf6 100644 --- a/drivers/iio/adc/mxs-lradc-adc.c +++ b/drivers/iio/adc/mxs-lradc-adc.c @@ -760,13 +760,13 @@ static int mxs_lradc_adc_probe(struct platform_device *pdev) ret = mxs_lradc_adc_trigger_init(iio); if (ret) - goto err_trig; + return ret; ret = iio_triggered_buffer_setup(iio, &iio_pollfunc_store_time, &mxs_lradc_adc_trigger_handler, &mxs_lradc_adc_buffer_ops); if (ret) - return ret; + goto err_trig; adc->vref_mv = mxs_lradc_adc_vref_mv[lradc->soc]; @@ -804,9 +804,9 @@ static int mxs_lradc_adc_probe(struct platform_device *pdev) err_dev: mxs_lradc_adc_hw_stop(adc); - mxs_lradc_adc_trigger_remove(iio); -err_trig: iio_triggered_buffer_cleanup(iio); +err_trig: + mxs_lradc_adc_trigger_remove(iio); return ret; } @@ -817,8 +817,8 @@ static int mxs_lradc_adc_remove(struct platform_device *pdev) iio_device_unregister(iio); mxs_lradc_adc_hw_stop(adc); - mxs_lradc_adc_trigger_remove(iio); iio_triggered_buffer_cleanup(iio); + mxs_lradc_adc_trigger_remove(iio); return 0; } diff --git a/drivers/iio/adc/palmas_gpadc.c b/drivers/iio/adc/palmas_gpadc.c index 2bd785e9e42a..4861093b0764 100644 --- a/drivers/iio/adc/palmas_gpadc.c +++ b/drivers/iio/adc/palmas_gpadc.c @@ -630,7 +630,7 @@ out: static int palmas_gpadc_remove(struct platform_device *pdev) { - struct iio_dev *indio_dev = dev_to_iio_dev(&pdev->dev); + struct iio_dev *indio_dev = dev_get_drvdata(&pdev->dev); struct palmas_gpadc *adc = iio_priv(indio_dev); if (adc->wakeup1_enable || adc->wakeup2_enable) diff --git a/drivers/iio/adc/sc27xx_adc.c b/drivers/iio/adc/sc27xx_adc.c index a6c046575ec3..5b79c8b9ccde 100644 --- a/drivers/iio/adc/sc27xx_adc.c +++ b/drivers/iio/adc/sc27xx_adc.c @@ -36,8 +36,8 @@ /* Bits and mask definition for SC27XX_ADC_CH_CFG register */ #define SC27XX_ADC_CHN_ID_MASK GENMASK(4, 0) -#define SC27XX_ADC_SCALE_MASK GENMASK(10, 8) -#define SC27XX_ADC_SCALE_SHIFT 8 +#define SC27XX_ADC_SCALE_MASK GENMASK(10, 9) +#define SC27XX_ADC_SCALE_SHIFT 9 /* Bits definitions for SC27XX_ADC_INT_EN registers */ #define SC27XX_ADC_IRQ_EN BIT(0) @@ -103,14 +103,14 @@ static struct sc27xx_adc_linear_graph small_scale_graph = { 100, 341, }; -static const struct sc27xx_adc_linear_graph big_scale_graph_calib = { - 4200, 856, - 3600, 733, +static const struct sc27xx_adc_linear_graph sc2731_big_scale_graph_calib = { + 4200, 850, + 3600, 728, }; -static const struct sc27xx_adc_linear_graph small_scale_graph_calib = { - 1000, 833, - 100, 80, +static const struct sc27xx_adc_linear_graph sc2731_small_scale_graph_calib = { + 1000, 838, + 100, 84, }; static int sc27xx_adc_get_calib_data(u32 calib_data, int calib_adc) @@ -130,11 +130,11 @@ static int sc27xx_adc_scale_calibration(struct sc27xx_adc_data *data, size_t len; if (big_scale) { - calib_graph = &big_scale_graph_calib; + calib_graph = &sc2731_big_scale_graph_calib; graph = &big_scale_graph; cell_name = "big_scale_calib"; } else { - calib_graph = &small_scale_graph_calib; + calib_graph = &sc2731_small_scale_graph_calib; graph = &small_scale_graph; cell_name = "small_scale_calib"; } diff --git a/drivers/iio/adc/stm32-adc-core.c b/drivers/iio/adc/stm32-adc-core.c index 14d6a537289c..0ecec5a15fbf 100644 --- a/drivers/iio/adc/stm32-adc-core.c +++ b/drivers/iio/adc/stm32-adc-core.c @@ -815,7 +815,7 @@ static const struct stm32_adc_priv_cfg stm32h7_adc_priv_cfg = { static const struct stm32_adc_priv_cfg stm32mp1_adc_priv_cfg = { .regs = &stm32h7_adc_common_regs, .clk_sel = stm32h7_adc_clk_sel, - .max_clk_rate_hz = 40000000, + .max_clk_rate_hz = 36000000, .has_syscfg = HAS_VBOOSTER | HAS_ANASWVDD, .num_irqs = 2, }; diff --git a/drivers/iio/adc/stm32-dfsdm-adc.c b/drivers/iio/adc/stm32-dfsdm-adc.c index c2948defa785..0c92eb30f0d8 100644 --- a/drivers/iio/adc/stm32-dfsdm-adc.c +++ b/drivers/iio/adc/stm32-dfsdm-adc.c @@ -1544,6 +1544,7 @@ static const struct of_device_id stm32_dfsdm_adc_match[] = { }, {} }; +MODULE_DEVICE_TABLE(of, stm32_dfsdm_adc_match); static int stm32_dfsdm_adc_probe(struct platform_device *pdev) { diff --git a/drivers/iio/adc/stmpe-adc.c b/drivers/iio/adc/stmpe-adc.c index bd72727fc417..35ae801c4d35 100644 --- a/drivers/iio/adc/stmpe-adc.c +++ b/drivers/iio/adc/stmpe-adc.c @@ -61,7 +61,7 @@ struct stmpe_adc { static int stmpe_read_voltage(struct stmpe_adc *info, struct iio_chan_spec const *chan, int *val) { - long ret; + unsigned long ret; mutex_lock(&info->lock); @@ -79,7 +79,7 @@ static int stmpe_read_voltage(struct stmpe_adc *info, ret = wait_for_completion_timeout(&info->completion, STMPE_ADC_TIMEOUT); - if (ret <= 0) { + if (ret == 0) { stmpe_reg_write(info->stmpe, STMPE_REG_ADC_INT_STA, STMPE_ADC_CH(info->channel)); mutex_unlock(&info->lock); @@ -96,7 +96,7 @@ static int stmpe_read_voltage(struct stmpe_adc *info, static int stmpe_read_temp(struct stmpe_adc *info, struct iio_chan_spec const *chan, int *val) { - long ret; + unsigned long ret; mutex_lock(&info->lock); @@ -114,7 +114,7 @@ static int stmpe_read_temp(struct stmpe_adc *info, ret = wait_for_completion_timeout(&info->completion, STMPE_ADC_TIMEOUT); - if (ret <= 0) { + if (ret == 0) { mutex_unlock(&info->lock); return -ETIMEDOUT; } diff --git a/drivers/iio/adc/ti-adc128s052.c b/drivers/iio/adc/ti-adc128s052.c index 4267d756cd50..c1de80bd82f9 100644 --- a/drivers/iio/adc/ti-adc128s052.c +++ b/drivers/iio/adc/ti-adc128s052.c @@ -194,13 +194,13 @@ static int adc128_remove(struct spi_device *spi) } static const struct of_device_id adc128_of_match[] = { - { .compatible = "ti,adc128s052", }, - { .compatible = "ti,adc122s021", }, - { .compatible = "ti,adc122s051", }, - { .compatible = "ti,adc122s101", }, - { .compatible = "ti,adc124s021", }, - { .compatible = "ti,adc124s051", }, - { .compatible = "ti,adc124s101", }, + { .compatible = "ti,adc128s052", .data = (void*)0L, }, + { .compatible = "ti,adc122s021", .data = (void*)1L, }, + { .compatible = "ti,adc122s051", .data = (void*)1L, }, + { .compatible = "ti,adc122s101", .data = (void*)1L, }, + { .compatible = "ti,adc124s021", .data = (void*)2L, }, + { .compatible = "ti,adc124s051", .data = (void*)2L, }, + { .compatible = "ti,adc124s101", .data = (void*)2L, }, { /* sentinel */ }, }; MODULE_DEVICE_TABLE(of, adc128_of_match); diff --git a/drivers/iio/adc/ti-ads7950.c b/drivers/iio/adc/ti-ads7950.c index 7a1a9fe47072..1dee372e4199 100644 --- a/drivers/iio/adc/ti-ads7950.c +++ b/drivers/iio/adc/ti-ads7950.c @@ -635,6 +635,7 @@ static int ti_ads7950_probe(struct spi_device *spi) st->chip.label = dev_name(&st->spi->dev); st->chip.parent = &st->spi->dev; st->chip.owner = THIS_MODULE; + st->chip.can_sleep = true; st->chip.base = -1; st->chip.ngpio = TI_ADS7950_NUM_GPIOS; st->chip.get_direction = ti_ads7950_get_direction; diff --git a/drivers/iio/adc/ti_am335x_adc.c b/drivers/iio/adc/ti_am335x_adc.c index 9d984f2a8ba7..38d8a01d9f95 100644 --- a/drivers/iio/adc/ti_am335x_adc.c +++ b/drivers/iio/adc/ti_am335x_adc.c @@ -656,8 +656,10 @@ static int tiadc_probe(struct platform_device *pdev) platform_set_drvdata(pdev, indio_dev); err = tiadc_request_dma(pdev, adc_dev); - if (err && err == -EPROBE_DEFER) + if (err && err != -ENODEV) { + dev_err_probe(&pdev->dev, err, "DMA request failed\n"); goto err_dma; + } return 0; diff --git a/drivers/iio/adc/twl6030-gpadc.c b/drivers/iio/adc/twl6030-gpadc.c index fb77c3ff5a3e..0a7608174758 100644 --- a/drivers/iio/adc/twl6030-gpadc.c +++ b/drivers/iio/adc/twl6030-gpadc.c @@ -57,6 +57,18 @@ #define TWL6030_GPADCS BIT(1) #define TWL6030_GPADCR BIT(0) +#define USB_VBUS_CTRL_SET 0x04 +#define USB_ID_CTRL_SET 0x06 + +#define TWL6030_MISC1 0xE4 +#define VBUS_MEAS 0x01 +#define ID_MEAS 0x01 + +#define VAC_MEAS 0x04 +#define VBAT_MEAS 0x02 +#define BB_MEAS 0x01 + + /** * struct twl6030_chnl_calib - channel calibration * @gain: slope coefficient for ideal curve @@ -927,6 +939,26 @@ static int twl6030_gpadc_probe(struct platform_device *pdev) return ret; } + ret = twl_i2c_write_u8(TWL_MODULE_USB, VBUS_MEAS, USB_VBUS_CTRL_SET); + if (ret < 0) { + dev_err(dev, "failed to wire up inputs\n"); + return ret; + } + + ret = twl_i2c_write_u8(TWL_MODULE_USB, ID_MEAS, USB_ID_CTRL_SET); + if (ret < 0) { + dev_err(dev, "failed to wire up inputs\n"); + return ret; + } + + ret = twl_i2c_write_u8(TWL6030_MODULE_ID0, + VBAT_MEAS | BB_MEAS | VAC_MEAS, + TWL6030_MISC1); + if (ret < 0) { + dev_err(dev, "failed to wire up inputs\n"); + return ret; + } + indio_dev->name = DRIVER_NAME; indio_dev->dev.parent = dev; indio_dev->info = &twl6030_gpadc_iio_info; diff --git a/drivers/iio/addac/Kconfig b/drivers/iio/addac/Kconfig new file mode 100644 index 000000000000..1f598670e84f --- /dev/null +++ b/drivers/iio/addac/Kconfig @@ -0,0 +1,24 @@ +# +# ADC DAC drivers +# +# When adding new entries keep the list in alphabetical order + +menu "Analog to digital and digital to analog converters" + +config STX104 + tristate "Apex Embedded Systems STX104 driver" + depends on PC104 && X86 + select ISA_BUS_API + select GPIOLIB + help + Say yes here to build support for the Apex Embedded Systems STX104 + integrated analog PC/104 card. + + This driver supports the 16 channels of single-ended (8 channels of + differential) analog inputs, 2 channels of analog output, 4 digital + inputs, and 4 digital outputs provided by the STX104. + + The base port addresses for the devices may be configured via the base + array module parameter. + +endmenu diff --git a/drivers/iio/addac/Makefile b/drivers/iio/addac/Makefile new file mode 100644 index 000000000000..862914523354 --- /dev/null +++ b/drivers/iio/addac/Makefile @@ -0,0 +1,7 @@ +# SPDX-License-Identifier: GPL-2.0 +# +# Makefile for industrial I/O ADDAC drivers +# + +# When adding new entries keep the list in alphabetical order +obj-$(CONFIG_STX104) += stx104.o diff --git a/drivers/iio/adc/stx104.c b/drivers/iio/addac/stx104.c index f87bbc711ccc..8237ae4263cb 100644 --- a/drivers/iio/adc/stx104.c +++ b/drivers/iio/addac/stx104.c @@ -15,7 +15,9 @@ #include <linux/kernel.h> #include <linux/module.h> #include <linux/moduleparam.h> +#include <linux/mutex.h> #include <linux/spinlock.h> +#include <linux/types.h> #define STX104_OUT_CHAN(chan) { \ .type = IIO_VOLTAGE, \ @@ -45,13 +47,37 @@ module_param_hw_array(base, uint, ioport, &num_stx104, 0); MODULE_PARM_DESC(base, "Apex Embedded Systems STX104 base addresses"); /** + * struct stx104_reg - device register structure + * @ssr_ad: Software Strobe Register and ADC Data + * @achan: ADC Channel + * @dio: Digital I/O + * @dac: DAC Channels + * @cir_asr: Clear Interrupts and ADC Status + * @acr: ADC Control + * @pccr_fsh: Pacer Clock Control and FIFO Status MSB + * @acfg: ADC Configuration + */ +struct stx104_reg { + u16 ssr_ad; + u8 achan; + u8 dio; + u16 dac[2]; + u8 cir_asr; + u8 acr; + u8 pccr_fsh; + u8 acfg; +}; + +/** * struct stx104_iio - IIO device private data structure + * @lock: synchronization lock to prevent I/O race conditions * @chan_out_states: channels' output states - * @base: base port address of the IIO device + * @reg: I/O address offset for the device registers */ struct stx104_iio { + struct mutex lock; unsigned int chan_out_states[STX104_NUM_OUT_CHAN]; - unsigned int base; + struct stx104_reg __iomem *reg; }; /** @@ -64,7 +90,7 @@ struct stx104_iio { struct stx104_gpio { struct gpio_chip chip; spinlock_t lock; - unsigned int base; + u8 __iomem *base; unsigned int out_state; }; @@ -72,6 +98,7 @@ static int stx104_read_raw(struct iio_dev *indio_dev, struct iio_chan_spec const *chan, int *val, int *val2, long mask) { struct stx104_iio *const priv = iio_priv(indio_dev); + struct stx104_reg __iomem *const reg = priv->reg; unsigned int adc_config; int adbu; int gain; @@ -79,7 +106,7 @@ static int stx104_read_raw(struct iio_dev *indio_dev, switch (mask) { case IIO_CHAN_INFO_HARDWAREGAIN: /* get gain configuration */ - adc_config = inb(priv->base + 11); + adc_config = ioread8(®->acfg); gain = adc_config & 0x3; *val = 1 << gain; @@ -90,25 +117,31 @@ static int stx104_read_raw(struct iio_dev *indio_dev, return IIO_VAL_INT; } + mutex_lock(&priv->lock); + /* select ADC channel */ - outb(chan->channel | (chan->channel << 4), priv->base + 2); + iowrite8(chan->channel | (chan->channel << 4), ®->achan); + + /* trigger ADC sample capture by writing to the 8-bit + * Software Strobe Register and wait for completion + */ + iowrite8(0, ®->ssr_ad); + while (ioread8(®->cir_asr) & BIT(7)); - /* trigger ADC sample capture and wait for completion */ - outb(0, priv->base); - while (inb(priv->base + 8) & BIT(7)); + *val = ioread16(®->ssr_ad); - *val = inw(priv->base); + mutex_unlock(&priv->lock); return IIO_VAL_INT; case IIO_CHAN_INFO_OFFSET: /* get ADC bipolar/unipolar configuration */ - adc_config = inb(priv->base + 11); + adc_config = ioread8(®->acfg); adbu = !(adc_config & BIT(2)); *val = -32768 * adbu; return IIO_VAL_INT; case IIO_CHAN_INFO_SCALE: /* get ADC bipolar/unipolar and gain configuration */ - adc_config = inb(priv->base + 11); + adc_config = ioread8(®->acfg); adbu = !(adc_config & BIT(2)); gain = adc_config & 0x3; @@ -130,16 +163,16 @@ static int stx104_write_raw(struct iio_dev *indio_dev, /* Only four gain states (x1, x2, x4, x8) */ switch (val) { case 1: - outb(0, priv->base + 11); + iowrite8(0, &priv->reg->acfg); break; case 2: - outb(1, priv->base + 11); + iowrite8(1, &priv->reg->acfg); break; case 4: - outb(2, priv->base + 11); + iowrite8(2, &priv->reg->acfg); break; case 8: - outb(3, priv->base + 11); + iowrite8(3, &priv->reg->acfg); break; default: return -EINVAL; @@ -152,9 +185,12 @@ static int stx104_write_raw(struct iio_dev *indio_dev, if ((unsigned int)val > 65535) return -EINVAL; + mutex_lock(&priv->lock); + priv->chan_out_states[chan->channel] = val; - outw(val, priv->base + 4 + 2 * chan->channel); + iowrite16(val, &priv->reg->dac[chan->channel]); + mutex_unlock(&priv->lock); return 0; } return -EINVAL; @@ -222,7 +258,7 @@ static int stx104_gpio_get(struct gpio_chip *chip, unsigned int offset) if (offset >= 4) return -EINVAL; - return !!(inb(stx104gpio->base) & BIT(offset)); + return !!(ioread8(stx104gpio->base) & BIT(offset)); } static int stx104_gpio_get_multiple(struct gpio_chip *chip, unsigned long *mask, @@ -230,7 +266,7 @@ static int stx104_gpio_get_multiple(struct gpio_chip *chip, unsigned long *mask, { struct stx104_gpio *const stx104gpio = gpiochip_get_data(chip); - *bits = inb(stx104gpio->base); + *bits = ioread8(stx104gpio->base); return 0; } @@ -252,7 +288,7 @@ static void stx104_gpio_set(struct gpio_chip *chip, unsigned int offset, else stx104gpio->out_state &= ~mask; - outb(stx104gpio->out_state, stx104gpio->base); + iowrite8(stx104gpio->out_state, stx104gpio->base); spin_unlock_irqrestore(&stx104gpio->lock, flags); } @@ -279,7 +315,7 @@ static void stx104_gpio_set_multiple(struct gpio_chip *chip, stx104gpio->out_state &= ~*mask; stx104gpio->out_state |= *mask & *bits; - outb(stx104gpio->out_state, stx104gpio->base); + iowrite8(stx104gpio->out_state, stx104gpio->base); spin_unlock_irqrestore(&stx104gpio->lock, flags); } @@ -306,11 +342,16 @@ static int stx104_probe(struct device *dev, unsigned int id) return -EBUSY; } + priv = iio_priv(indio_dev); + priv->reg = devm_ioport_map(dev, base[id], STX104_EXTENT); + if (!priv->reg) + return -ENOMEM; + indio_dev->info = &stx104_info; indio_dev->modes = INDIO_DIRECT_MODE; /* determine if differential inputs */ - if (inb(base[id] + 8) & BIT(5)) { + if (ioread8(&priv->reg->cir_asr) & BIT(5)) { indio_dev->num_channels = ARRAY_SIZE(stx104_channels_diff); indio_dev->channels = stx104_channels_diff; } else { @@ -321,18 +362,17 @@ static int stx104_probe(struct device *dev, unsigned int id) indio_dev->name = dev_name(dev); indio_dev->dev.parent = dev; - priv = iio_priv(indio_dev); - priv->base = base[id]; + mutex_init(&priv->lock); /* configure device for software trigger operation */ - outb(0, base[id] + 9); + iowrite8(0, &priv->reg->acr); /* initialize gain setting to x1 */ - outb(0, base[id] + 11); + iowrite8(0, &priv->reg->acfg); /* initialize DAC output to 0V */ - outw(0, base[id] + 4); - outw(0, base[id] + 6); + iowrite16(0, &priv->reg->dac[0]); + iowrite16(0, &priv->reg->dac[1]); stx104gpio->chip.label = dev_name(dev); stx104gpio->chip.parent = dev; @@ -347,7 +387,7 @@ static int stx104_probe(struct device *dev, unsigned int id) stx104gpio->chip.get_multiple = stx104_gpio_get_multiple; stx104gpio->chip.set = stx104_gpio_set; stx104gpio->chip.set_multiple = stx104_gpio_set_multiple; - stx104gpio->base = base[id] + 3; + stx104gpio->base = &priv->reg->dio; stx104gpio->out_state = 0x0; spin_lock_init(&stx104gpio->lock); diff --git a/drivers/iio/chemical/ccs811.c b/drivers/iio/chemical/ccs811.c index 7bf4e9a16a6a..a2ee6bbda7f4 100644 --- a/drivers/iio/chemical/ccs811.c +++ b/drivers/iio/chemical/ccs811.c @@ -418,11 +418,11 @@ static int ccs811_probe(struct i2c_client *client, data->drdy_trig->dev.parent = &client->dev; data->drdy_trig->ops = &ccs811_trigger_ops; iio_trigger_set_drvdata(data->drdy_trig, indio_dev); - indio_dev->trig = data->drdy_trig; - iio_trigger_get(indio_dev->trig); ret = iio_trigger_register(data->drdy_trig); if (ret) goto err_poweroff; + + indio_dev->trig = iio_trigger_get(data->drdy_trig); } ret = iio_triggered_buffer_setup(indio_dev, NULL, diff --git a/drivers/iio/common/cros_ec_sensors/cros_ec_sensors_core.c b/drivers/iio/common/cros_ec_sensors/cros_ec_sensors_core.c index b4f394f05863..44553eccb30d 100644 --- a/drivers/iio/common/cros_ec_sensors/cros_ec_sensors_core.c +++ b/drivers/iio/common/cros_ec_sensors/cros_ec_sensors_core.c @@ -99,7 +99,7 @@ int cros_ec_sensors_core_init(struct platform_device *pdev, platform_set_drvdata(pdev, indio_dev); state->ec = ec->ec_dev; - state->msg = devm_kzalloc(&pdev->dev, + state->msg = devm_kzalloc(&pdev->dev, sizeof(*state->msg) + max((u16)sizeof(struct ec_params_motion_sense), state->ec->max_response), GFP_KERNEL); if (!state->msg) diff --git a/drivers/iio/common/ms_sensors/ms_sensors_i2c.c b/drivers/iio/common/ms_sensors/ms_sensors_i2c.c index b52cba1b3c83..3f01ebeda242 100644 --- a/drivers/iio/common/ms_sensors/ms_sensors_i2c.c +++ b/drivers/iio/common/ms_sensors/ms_sensors_i2c.c @@ -15,8 +15,8 @@ /* Conversion times in us */ static const u16 ms_sensors_ht_t_conversion_time[] = { 50000, 25000, 13000, 7000 }; -static const u16 ms_sensors_ht_h_conversion_time[] = { 16000, 3000, - 5000, 8000 }; +static const u16 ms_sensors_ht_h_conversion_time[] = { 16000, 5000, + 3000, 8000 }; static const u16 ms_sensors_tp_conversion_time[] = { 500, 1100, 2100, 4100, 8220, 16440 }; diff --git a/drivers/iio/common/st_sensors/st_sensors_core.c b/drivers/iio/common/st_sensors/st_sensors_core.c index 364683783ae5..c25b0bc89b0c 100644 --- a/drivers/iio/common/st_sensors/st_sensors_core.c +++ b/drivers/iio/common/st_sensors/st_sensors_core.c @@ -76,16 +76,18 @@ st_sensors_match_odr_error: int st_sensors_set_odr(struct iio_dev *indio_dev, unsigned int odr) { - int err; + int err = 0; struct st_sensor_odr_avl odr_out = {0, 0}; struct st_sensor_data *sdata = iio_priv(indio_dev); + mutex_lock(&sdata->odr_lock); + if (!sdata->sensor_settings->odr.mask) - return 0; + goto unlock_mutex; err = st_sensors_match_odr(sdata->sensor_settings, odr, &odr_out); if (err < 0) - goto st_sensors_match_odr_error; + goto unlock_mutex; if ((sdata->sensor_settings->odr.addr == sdata->sensor_settings->pw.addr) && @@ -108,7 +110,9 @@ int st_sensors_set_odr(struct iio_dev *indio_dev, unsigned int odr) if (err >= 0) sdata->odr = odr_out.hz; -st_sensors_match_odr_error: +unlock_mutex: + mutex_unlock(&sdata->odr_lock); + return err; } EXPORT_SYMBOL(st_sensors_set_odr); @@ -384,6 +388,8 @@ int st_sensors_init_sensor(struct iio_dev *indio_dev, struct st_sensors_platform_data *of_pdata; int err = 0; + mutex_init(&sdata->odr_lock); + /* If OF/DT pdata exists, it will take precedence of anything else */ of_pdata = st_sensors_of_probe(indio_dev->dev.parent, pdata); if (of_pdata) @@ -575,18 +581,24 @@ int st_sensors_read_info_raw(struct iio_dev *indio_dev, err = -EBUSY; goto out; } else { + mutex_lock(&sdata->odr_lock); err = st_sensors_set_enable(indio_dev, true); - if (err < 0) + if (err < 0) { + mutex_unlock(&sdata->odr_lock); goto out; + } msleep((sdata->sensor_settings->bootime * 1000) / sdata->odr); err = st_sensors_read_axis_data(indio_dev, ch, val); - if (err < 0) + if (err < 0) { + mutex_unlock(&sdata->odr_lock); goto out; + } *val = *val >> ch->scan_type.shift; err = st_sensors_set_enable(indio_dev, false); + mutex_unlock(&sdata->odr_lock); } out: mutex_unlock(&indio_dev->mlock); diff --git a/drivers/iio/dac/Makefile b/drivers/iio/dac/Makefile index 1369fa1d2f0e..cd5c30d03d48 100644 --- a/drivers/iio/dac/Makefile +++ b/drivers/iio/dac/Makefile @@ -16,7 +16,7 @@ obj-$(CONFIG_AD5592R_BASE) += ad5592r-base.o obj-$(CONFIG_AD5592R) += ad5592r.o obj-$(CONFIG_AD5593R) += ad5593r.o obj-$(CONFIG_AD5755) += ad5755.o -obj-$(CONFIG_AD5755) += ad5758.o +obj-$(CONFIG_AD5758) += ad5758.o obj-$(CONFIG_AD5761) += ad5761.o obj-$(CONFIG_AD5764) += ad5764.o obj-$(CONFIG_AD5791) += ad5791.o diff --git a/drivers/iio/dac/ad5446.c b/drivers/iio/dac/ad5446.c index 1f55cd8abb55..5fbda0431d6a 100644 --- a/drivers/iio/dac/ad5446.c +++ b/drivers/iio/dac/ad5446.c @@ -170,7 +170,7 @@ static int ad5446_read_raw(struct iio_dev *indio_dev, switch (m) { case IIO_CHAN_INFO_RAW: - *val = st->cached_val; + *val = st->cached_val >> chan->scan_type.shift; return IIO_VAL_INT; case IIO_CHAN_INFO_SCALE: *val = st->vref_mv; diff --git a/drivers/iio/dac/ad5592r-base.c b/drivers/iio/dac/ad5592r-base.c index 424922cad1e3..87a51a85a642 100644 --- a/drivers/iio/dac/ad5592r-base.c +++ b/drivers/iio/dac/ad5592r-base.c @@ -530,7 +530,7 @@ static int ad5592r_alloc_channels(struct ad5592r_state *st) if (!ret) st->channel_modes[reg] = tmp; - fwnode_property_read_u32(child, "adi,off-state", &tmp); + ret = fwnode_property_read_u32(child, "adi,off-state", &tmp); if (!ret) st->channel_offstate[reg] = tmp; } diff --git a/drivers/iio/dac/ad5593r.c b/drivers/iio/dac/ad5593r.c index 44ea3b8117d0..cd5d9ce5fcae 100644 --- a/drivers/iio/dac/ad5593r.c +++ b/drivers/iio/dac/ad5593r.c @@ -14,6 +14,8 @@ #include <linux/of.h> #include <linux/acpi.h> +#include <asm/unaligned.h> + #define AD5593R_MODE_CONF (0 << 4) #define AD5593R_MODE_DAC_WRITE (1 << 4) #define AD5593R_MODE_ADC_READBACK (4 << 4) @@ -21,6 +23,24 @@ #define AD5593R_MODE_GPIO_READBACK (6 << 4) #define AD5593R_MODE_REG_READBACK (7 << 4) +static int ad5593r_read_word(struct i2c_client *i2c, u8 reg, u16 *value) +{ + int ret; + u8 buf[2]; + + ret = i2c_smbus_write_byte(i2c, reg); + if (ret < 0) + return ret; + + ret = i2c_master_recv(i2c, buf, sizeof(buf)); + if (ret < 0) + return ret; + + *value = get_unaligned_be16(buf); + + return 0; +} + static int ad5593r_write_dac(struct ad5592r_state *st, unsigned chan, u16 value) { struct i2c_client *i2c = to_i2c_client(st->dev); @@ -39,13 +59,7 @@ static int ad5593r_read_adc(struct ad5592r_state *st, unsigned chan, u16 *value) if (val < 0) return (int) val; - val = i2c_smbus_read_word_swapped(i2c, AD5593R_MODE_ADC_READBACK); - if (val < 0) - return (int) val; - - *value = (u16) val; - - return 0; + return ad5593r_read_word(i2c, AD5593R_MODE_ADC_READBACK, value); } static int ad5593r_reg_write(struct ad5592r_state *st, u8 reg, u16 value) @@ -59,25 +73,19 @@ static int ad5593r_reg_write(struct ad5592r_state *st, u8 reg, u16 value) static int ad5593r_reg_read(struct ad5592r_state *st, u8 reg, u16 *value) { struct i2c_client *i2c = to_i2c_client(st->dev); - s32 val; - - val = i2c_smbus_read_word_swapped(i2c, AD5593R_MODE_REG_READBACK | reg); - if (val < 0) - return (int) val; - *value = (u16) val; - - return 0; + return ad5593r_read_word(i2c, AD5593R_MODE_REG_READBACK | reg, value); } static int ad5593r_gpio_read(struct ad5592r_state *st, u8 *value) { struct i2c_client *i2c = to_i2c_client(st->dev); - s32 val; + u16 val; + int ret; - val = i2c_smbus_read_word_swapped(i2c, AD5593R_MODE_GPIO_READBACK); - if (val < 0) - return (int) val; + ret = ad5593r_read_word(i2c, AD5593R_MODE_GPIO_READBACK, &val); + if (ret) + return ret; *value = (u8) val; diff --git a/drivers/iio/dac/cio-dac.c b/drivers/iio/dac/cio-dac.c index 81677795e57a..080a3721874d 100644 --- a/drivers/iio/dac/cio-dac.c +++ b/drivers/iio/dac/cio-dac.c @@ -66,8 +66,8 @@ static int cio_dac_write_raw(struct iio_dev *indio_dev, if (mask != IIO_CHAN_INFO_RAW) return -EINVAL; - /* DAC can only accept up to a 16-bit value */ - if ((unsigned int)val > 65535) + /* DAC can only accept up to a 12-bit value */ + if ((unsigned int)val > 4095) return -EINVAL; priv->chan_out_states[chan->channel] = val; diff --git a/drivers/iio/dac/mcp4725.c b/drivers/iio/dac/mcp4725.c index ed455e801e80..4ed7e90d37f9 100644 --- a/drivers/iio/dac/mcp4725.c +++ b/drivers/iio/dac/mcp4725.c @@ -47,12 +47,18 @@ static int __maybe_unused mcp4725_suspend(struct device *dev) struct mcp4725_data *data = iio_priv(i2c_get_clientdata( to_i2c_client(dev))); u8 outbuf[2]; + int ret; outbuf[0] = (data->powerdown_mode + 1) << 4; outbuf[1] = 0; data->powerdown = true; - return i2c_master_send(data->client, outbuf, 2); + ret = i2c_master_send(data->client, outbuf, 2); + if (ret < 0) + return ret; + else if (ret != 2) + return -EIO; + return 0; } static int __maybe_unused mcp4725_resume(struct device *dev) @@ -60,13 +66,19 @@ static int __maybe_unused mcp4725_resume(struct device *dev) struct mcp4725_data *data = iio_priv(i2c_get_clientdata( to_i2c_client(dev))); u8 outbuf[2]; + int ret; /* restore previous DAC value */ outbuf[0] = (data->dac_value >> 8) & 0xf; outbuf[1] = data->dac_value & 0xff; data->powerdown = false; - return i2c_master_send(data->client, outbuf, 2); + ret = i2c_master_send(data->client, outbuf, 2); + if (ret < 0) + return ret; + else if (ret != 2) + return -EIO; + return 0; } static SIMPLE_DEV_PM_OPS(mcp4725_pm_ops, mcp4725_suspend, mcp4725_resume); diff --git a/drivers/iio/dummy/iio_simple_dummy.c b/drivers/iio/dummy/iio_simple_dummy.c index 6cb02299a215..18cfe1cb7a40 100644 --- a/drivers/iio/dummy/iio_simple_dummy.c +++ b/drivers/iio/dummy/iio_simple_dummy.c @@ -568,10 +568,9 @@ static struct iio_sw_device *iio_dummy_probe(const char *name) struct iio_sw_device *swd; swd = kzalloc(sizeof(*swd), GFP_KERNEL); - if (!swd) { - ret = -ENOMEM; - goto error_kzalloc; - } + if (!swd) + return ERR_PTR(-ENOMEM); + /* * Allocate an IIO device. * @@ -583,7 +582,7 @@ static struct iio_sw_device *iio_dummy_probe(const char *name) indio_dev = iio_device_alloc(sizeof(*st)); if (!indio_dev) { ret = -ENOMEM; - goto error_ret; + goto error_free_swd; } st = iio_priv(indio_dev); @@ -614,6 +613,10 @@ static struct iio_sw_device *iio_dummy_probe(const char *name) * indio_dev->name = spi_get_device_id(spi)->name; */ indio_dev->name = kstrdup(name, GFP_KERNEL); + if (!indio_dev->name) { + ret = -ENOMEM; + goto error_free_device; + } /* Provide description of available channels */ indio_dev->channels = iio_dummy_channels; @@ -630,7 +633,7 @@ static struct iio_sw_device *iio_dummy_probe(const char *name) ret = iio_simple_dummy_events_register(indio_dev); if (ret < 0) - goto error_free_device; + goto error_free_name; ret = iio_simple_dummy_configure_buffer(indio_dev); if (ret < 0) @@ -647,11 +650,12 @@ error_unconfigure_buffer: iio_simple_dummy_unconfigure_buffer(indio_dev); error_unregister_events: iio_simple_dummy_events_unregister(indio_dev); +error_free_name: + kfree(indio_dev->name); error_free_device: iio_device_free(indio_dev); -error_ret: +error_free_swd: kfree(swd); -error_kzalloc: return ERR_PTR(ret); } diff --git a/drivers/iio/gyro/mpu3050-core.c b/drivers/iio/gyro/mpu3050-core.c index 75db410b5054..0f5de4afe33f 100644 --- a/drivers/iio/gyro/mpu3050-core.c +++ b/drivers/iio/gyro/mpu3050-core.c @@ -874,6 +874,7 @@ static int mpu3050_power_up(struct mpu3050 *mpu3050) ret = regmap_update_bits(mpu3050->map, MPU3050_PWR_MGM, MPU3050_PWR_MGM_SLEEP, 0); if (ret) { + regulator_bulk_disable(ARRAY_SIZE(mpu3050->regs), mpu3050->regs); dev_err(mpu3050->dev, "error setting power mode\n"); return ret; } diff --git a/drivers/iio/health/afe4403.c b/drivers/iio/health/afe4403.c index 29104656a537..3fdaf3104cce 100644 --- a/drivers/iio/health/afe4403.c +++ b/drivers/iio/health/afe4403.c @@ -245,14 +245,14 @@ static int afe4403_read_raw(struct iio_dev *indio_dev, int *val, int *val2, long mask) { struct afe4403_data *afe = iio_priv(indio_dev); - unsigned int reg = afe4403_channel_values[chan->address]; - unsigned int field = afe4403_channel_leds[chan->address]; + unsigned int reg, field; int ret; switch (chan->type) { case IIO_INTENSITY: switch (mask) { case IIO_CHAN_INFO_RAW: + reg = afe4403_channel_values[chan->address]; ret = afe4403_read(afe, reg, val); if (ret) return ret; @@ -262,6 +262,7 @@ static int afe4403_read_raw(struct iio_dev *indio_dev, case IIO_CURRENT: switch (mask) { case IIO_CHAN_INFO_RAW: + field = afe4403_channel_leds[chan->address]; ret = regmap_field_read(afe->fields[field], val); if (ret) return ret; diff --git a/drivers/iio/health/afe4404.c b/drivers/iio/health/afe4404.c index cebb1fd4d0b1..7780e9b312b3 100644 --- a/drivers/iio/health/afe4404.c +++ b/drivers/iio/health/afe4404.c @@ -250,20 +250,20 @@ static int afe4404_read_raw(struct iio_dev *indio_dev, int *val, int *val2, long mask) { struct afe4404_data *afe = iio_priv(indio_dev); - unsigned int value_reg = afe4404_channel_values[chan->address]; - unsigned int led_field = afe4404_channel_leds[chan->address]; - unsigned int offdac_field = afe4404_channel_offdacs[chan->address]; + unsigned int value_reg, led_field, offdac_field; int ret; switch (chan->type) { case IIO_INTENSITY: switch (mask) { case IIO_CHAN_INFO_RAW: + value_reg = afe4404_channel_values[chan->address]; ret = regmap_read(afe->regmap, value_reg, val); if (ret) return ret; return IIO_VAL_INT; case IIO_CHAN_INFO_OFFSET: + offdac_field = afe4404_channel_offdacs[chan->address]; ret = regmap_field_read(afe->fields[offdac_field], val); if (ret) return ret; @@ -273,6 +273,7 @@ static int afe4404_read_raw(struct iio_dev *indio_dev, case IIO_CURRENT: switch (mask) { case IIO_CHAN_INFO_RAW: + led_field = afe4404_channel_leds[chan->address]; ret = regmap_field_read(afe->fields[led_field], val); if (ret) return ret; @@ -295,19 +296,20 @@ static int afe4404_write_raw(struct iio_dev *indio_dev, int val, int val2, long mask) { struct afe4404_data *afe = iio_priv(indio_dev); - unsigned int led_field = afe4404_channel_leds[chan->address]; - unsigned int offdac_field = afe4404_channel_offdacs[chan->address]; + unsigned int led_field, offdac_field; switch (chan->type) { case IIO_INTENSITY: switch (mask) { case IIO_CHAN_INFO_OFFSET: + offdac_field = afe4404_channel_offdacs[chan->address]; return regmap_field_write(afe->fields[offdac_field], val); } break; case IIO_CURRENT: switch (mask) { case IIO_CHAN_INFO_RAW: + led_field = afe4404_channel_leds[chan->address]; return regmap_field_write(afe->fields[led_field], val); } break; diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c b/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c index 2261c6c4ac65..87de2a05c711 100644 --- a/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c +++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c @@ -501,13 +501,13 @@ inv_mpu6050_read_raw(struct iio_dev *indio_dev, ret = inv_mpu6050_sensor_show(st, st->reg->gyro_offset, chan->channel2, val); mutex_unlock(&st->lock); - return IIO_VAL_INT; + return ret; case IIO_ACCEL: mutex_lock(&st->lock); ret = inv_mpu6050_sensor_show(st, st->reg->accl_offset, chan->channel2, val); mutex_unlock(&st->lock); - return IIO_VAL_INT; + return ret; default: return -EINVAL; diff --git a/drivers/iio/industrialio-sw-trigger.c b/drivers/iio/industrialio-sw-trigger.c index 9ae793a70b8b..a7714d32a641 100644 --- a/drivers/iio/industrialio-sw-trigger.c +++ b/drivers/iio/industrialio-sw-trigger.c @@ -58,8 +58,12 @@ int iio_register_sw_trigger_type(struct iio_sw_trigger_type *t) t->group = configfs_register_default_group(iio_triggers_group, t->name, &iio_trigger_type_group_type); - if (IS_ERR(t->group)) + if (IS_ERR(t->group)) { + mutex_lock(&iio_trigger_types_lock); + list_del(&t->list); + mutex_unlock(&iio_trigger_types_lock); ret = PTR_ERR(t->group); + } return ret; } diff --git a/drivers/iio/inkern.c b/drivers/iio/inkern.c index ca0fe902a7db..d00f3045557c 100644 --- a/drivers/iio/inkern.c +++ b/drivers/iio/inkern.c @@ -136,9 +136,10 @@ static int __of_iio_channel_get(struct iio_channel *channel, idev = bus_find_device(&iio_bus_type, NULL, iiospec.np, iio_dev_node_match); - of_node_put(iiospec.np); - if (idev == NULL) + if (idev == NULL) { + of_node_put(iiospec.np); return -EPROBE_DEFER; + } indio_dev = dev_to_iio_dev(idev); channel->indio_dev = indio_dev; @@ -146,6 +147,7 @@ static int __of_iio_channel_get(struct iio_channel *channel, index = indio_dev->info->of_xlate(indio_dev, &iiospec); else index = __of_iio_simple_xlate(indio_dev, &iiospec); + of_node_put(iiospec.np); if (index < 0) goto err_put; channel->channel = &indio_dev->channels[index]; diff --git a/drivers/iio/light/Kconfig b/drivers/iio/light/Kconfig index 42b64b85d06c..83885f6c93cd 100644 --- a/drivers/iio/light/Kconfig +++ b/drivers/iio/light/Kconfig @@ -239,6 +239,8 @@ config RPR0521 tristate "ROHM RPR0521 ALS and proximity sensor driver" depends on I2C select REGMAP_I2C + select IIO_BUFFER + select IIO_TRIGGERED_BUFFER help Say Y here if you want to build support for ROHM's RPR0521 ambient light and proximity sensor device. diff --git a/drivers/iio/light/apds9960.c b/drivers/iio/light/apds9960.c index c5dfb9a6b5a1..2403911fdbd9 100644 --- a/drivers/iio/light/apds9960.c +++ b/drivers/iio/light/apds9960.c @@ -55,9 +55,6 @@ #define APDS9960_REG_CONTROL_PGAIN_MASK_SHIFT 2 #define APDS9960_REG_CONFIG_2 0x90 -#define APDS9960_REG_CONFIG_2_GGAIN_MASK 0x60 -#define APDS9960_REG_CONFIG_2_GGAIN_MASK_SHIFT 5 - #define APDS9960_REG_ID 0x92 #define APDS9960_REG_STATUS 0x93 @@ -78,6 +75,9 @@ #define APDS9960_REG_GCONF_1_GFIFO_THRES_MASK_SHIFT 6 #define APDS9960_REG_GCONF_2 0xa3 +#define APDS9960_REG_GCONF_2_GGAIN_MASK 0x60 +#define APDS9960_REG_GCONF_2_GGAIN_MASK_SHIFT 5 + #define APDS9960_REG_GOFFSET_U 0xa4 #define APDS9960_REG_GOFFSET_D 0xa5 #define APDS9960_REG_GPULSE 0xa6 @@ -397,9 +397,9 @@ static int apds9960_set_pxs_gain(struct apds9960_data *data, int val) } ret = regmap_update_bits(data->regmap, - APDS9960_REG_CONFIG_2, - APDS9960_REG_CONFIG_2_GGAIN_MASK, - idx << APDS9960_REG_CONFIG_2_GGAIN_MASK_SHIFT); + APDS9960_REG_GCONF_2, + APDS9960_REG_GCONF_2_GGAIN_MASK, + idx << APDS9960_REG_GCONF_2_GGAIN_MASK_SHIFT); if (!ret) data->pxs_gain = idx; mutex_unlock(&data->lock); diff --git a/drivers/iio/light/isl29028.c b/drivers/iio/light/isl29028.c index 4d220c835c75..14e150c52dfa 100644 --- a/drivers/iio/light/isl29028.c +++ b/drivers/iio/light/isl29028.c @@ -628,7 +628,7 @@ static int isl29028_probe(struct i2c_client *client, ISL29028_POWER_OFF_DELAY_MS); pm_runtime_use_autosuspend(&client->dev); - ret = devm_iio_device_register(indio_dev->dev.parent, indio_dev); + ret = iio_device_register(indio_dev); if (ret < 0) { dev_err(&client->dev, "%s(): iio registration failed with error %d\n", diff --git a/drivers/iio/light/max44009.c b/drivers/iio/light/max44009.c index 00ba15499638..5103b1061a77 100644 --- a/drivers/iio/light/max44009.c +++ b/drivers/iio/light/max44009.c @@ -529,6 +529,12 @@ static int max44009_probe(struct i2c_client *client, return devm_iio_device_register(&client->dev, indio_dev); } +static const struct of_device_id max44009_of_match[] = { + { .compatible = "maxim,max44009" }, + { } +}; +MODULE_DEVICE_TABLE(of, max44009_of_match); + static const struct i2c_device_id max44009_id[] = { { "max44009", 0 }, { } @@ -538,18 +544,13 @@ MODULE_DEVICE_TABLE(i2c, max44009_id); static struct i2c_driver max44009_driver = { .driver = { .name = MAX44009_DRV_NAME, + .of_match_table = max44009_of_match, }, .probe = max44009_probe, .id_table = max44009_id, }; module_i2c_driver(max44009_driver); -static const struct of_device_id max44009_of_match[] = { - { .compatible = "maxim,max44009" }, - { } -}; -MODULE_DEVICE_TABLE(of, max44009_of_match); - MODULE_AUTHOR("Robert Eshleman <bobbyeshleman@gmail.com>"); MODULE_LICENSE("GPL v2"); MODULE_DESCRIPTION("MAX44009 ambient light sensor driver"); diff --git a/drivers/iio/light/tsl2583.c b/drivers/iio/light/tsl2583.c index fe6001afb7b4..06b98a2e174f 100644 --- a/drivers/iio/light/tsl2583.c +++ b/drivers/iio/light/tsl2583.c @@ -857,7 +857,7 @@ static int tsl2583_probe(struct i2c_client *clientp, TSL2583_POWER_OFF_DELAY_MS); pm_runtime_use_autosuspend(&clientp->dev); - ret = devm_iio_device_register(indio_dev->dev.parent, indio_dev); + ret = iio_device_register(indio_dev); if (ret) { dev_err(&clientp->dev, "%s: iio registration failed\n", __func__); diff --git a/drivers/iio/light/tsl2772.c b/drivers/iio/light/tsl2772.c index be37fcbd4654..665a24f63044 100644 --- a/drivers/iio/light/tsl2772.c +++ b/drivers/iio/light/tsl2772.c @@ -606,6 +606,7 @@ static int tsl2772_read_prox_diodes(struct tsl2772_chip *chip) return -EINVAL; } } + chip->settings.prox_diode = prox_diode_mask; return 0; } diff --git a/drivers/iio/light/vcnl4035.c b/drivers/iio/light/vcnl4035.c index 234623ab3817..6c83f9e54e2e 100644 --- a/drivers/iio/light/vcnl4035.c +++ b/drivers/iio/light/vcnl4035.c @@ -8,6 +8,7 @@ * TODO: Proximity */ #include <linux/bitops.h> +#include <linux/bitfield.h> #include <linux/i2c.h> #include <linux/module.h> #include <linux/pm_runtime.h> @@ -42,6 +43,7 @@ #define VCNL4035_ALS_PERS_MASK GENMASK(3, 2) #define VCNL4035_INT_ALS_IF_H_MASK BIT(12) #define VCNL4035_INT_ALS_IF_L_MASK BIT(13) +#define VCNL4035_DEV_ID_MASK GENMASK(7, 0) /* Default values */ #define VCNL4035_MODE_ALS_ENABLE BIT(0) @@ -415,6 +417,7 @@ static int vcnl4035_init(struct vcnl4035_data *data) return ret; } + id = FIELD_GET(VCNL4035_DEV_ID_MASK, id); if (id != VCNL4035_DEV_ID_VAL) { dev_err(&data->client->dev, "Wrong id, got %x, expected %x\n", id, VCNL4035_DEV_ID_VAL); diff --git a/drivers/iio/magnetometer/ak8975.c b/drivers/iio/magnetometer/ak8975.c index 82af903a765b..c54eed3f4edc 100644 --- a/drivers/iio/magnetometer/ak8975.c +++ b/drivers/iio/magnetometer/ak8975.c @@ -391,6 +391,7 @@ static int ak8975_power_on(const struct ak8975_data *data) if (ret) { dev_warn(&data->client->dev, "Failed to enable specified Vid supply\n"); + regulator_disable(data->vdd); return ret; } /* diff --git a/drivers/iio/magnetometer/rm3100-core.c b/drivers/iio/magnetometer/rm3100-core.c index f31ff225fe61..489e17e83a4d 100644 --- a/drivers/iio/magnetometer/rm3100-core.c +++ b/drivers/iio/magnetometer/rm3100-core.c @@ -539,6 +539,7 @@ int rm3100_common_probe(struct device *dev, struct regmap *regmap, int irq) struct rm3100_data *data; unsigned int tmp; int ret; + int samp_rate_index; indio_dev = devm_iio_device_alloc(dev, sizeof(*data)); if (!indio_dev) @@ -598,9 +599,14 @@ int rm3100_common_probe(struct device *dev, struct regmap *regmap, int irq) ret = regmap_read(regmap, RM3100_REG_TMRC, &tmp); if (ret < 0) return ret; + + samp_rate_index = tmp - RM3100_TMRC_OFFSET; + if (samp_rate_index < 0 || samp_rate_index >= RM3100_SAMP_NUM) { + dev_err(dev, "The value read from RM3100_REG_TMRC is invalid!\n"); + return -EINVAL; + } /* Initializing max wait time, which is double conversion time. */ - data->conversion_time = rm3100_samp_rates[tmp - RM3100_TMRC_OFFSET][2] - * 2; + data->conversion_time = rm3100_samp_rates[samp_rate_index][2] * 2; /* Cycle count values may not be what we want. */ if ((tmp - RM3100_TMRC_OFFSET) == 0) diff --git a/drivers/iio/pressure/bmp280-core.c b/drivers/iio/pressure/bmp280-core.c index 0a95afaa48fe..6d1e7c1deea0 100644 --- a/drivers/iio/pressure/bmp280-core.c +++ b/drivers/iio/pressure/bmp280-core.c @@ -1113,7 +1113,7 @@ int bmp280_common_probe(struct device *dev, * however as it happens, the BMP085 shares the chip ID of BMP180 * so we look for an IRQ if we have that. */ - if (irq > 0 || (chip_id == BMP180_CHIP_ID)) { + if (irq > 0 && (chip_id == BMP180_CHIP_ID)) { ret = bmp085_fetch_eoc_irq(dev, name, irq, data); if (ret) goto out_disable_vdda; diff --git a/drivers/iio/pressure/dps310.c b/drivers/iio/pressure/dps310.c index 2c1943bbc433..2b2203eea3e9 100644 --- a/drivers/iio/pressure/dps310.c +++ b/drivers/iio/pressure/dps310.c @@ -57,8 +57,8 @@ #define DPS310_RESET_MAGIC 0x09 #define DPS310_COEF_BASE 0x10 -/* Make sure sleep time is <= 20ms for usleep_range */ -#define DPS310_POLL_SLEEP_US(t) min(20000, (t) / 8) +/* Make sure sleep time is <= 30ms for usleep_range */ +#define DPS310_POLL_SLEEP_US(t) min(30000, (t) / 8) /* Silently handle error in rate value here */ #define DPS310_POLL_TIMEOUT_US(rc) ((rc) <= 0 ? 1000000 : 1000000 / (rc)) @@ -89,6 +89,7 @@ struct dps310_data { s32 c00, c10, c20, c30, c01, c11, c21; s32 pressure_raw; s32 temp_raw; + bool timeout_recovery_failed; }; static const struct iio_chan_spec dps310_channels[] = { @@ -159,6 +160,102 @@ static int dps310_get_coefs(struct dps310_data *data) return 0; } +/* + * Some versions of the chip will read temperatures in the ~60C range when + * it's actually ~20C. This is the manufacturer recommended workaround + * to correct the issue. The registers used below are undocumented. + */ +static int dps310_temp_workaround(struct dps310_data *data) +{ + int rc; + int reg; + + rc = regmap_read(data->regmap, 0x32, ®); + if (rc) + return rc; + + /* + * If bit 1 is set then the device is okay, and the workaround does not + * need to be applied + */ + if (reg & BIT(1)) + return 0; + + rc = regmap_write(data->regmap, 0x0e, 0xA5); + if (rc) + return rc; + + rc = regmap_write(data->regmap, 0x0f, 0x96); + if (rc) + return rc; + + rc = regmap_write(data->regmap, 0x62, 0x02); + if (rc) + return rc; + + rc = regmap_write(data->regmap, 0x0e, 0x00); + if (rc) + return rc; + + return regmap_write(data->regmap, 0x0f, 0x00); +} + +static int dps310_startup(struct dps310_data *data) +{ + int rc; + int ready; + + /* + * Set up pressure sensor in single sample, one measurement per second + * mode + */ + rc = regmap_write(data->regmap, DPS310_PRS_CFG, 0); + if (rc) + return rc; + + /* + * Set up external (MEMS) temperature sensor in single sample, one + * measurement per second mode + */ + rc = regmap_write(data->regmap, DPS310_TMP_CFG, DPS310_TMP_EXT); + if (rc) + return rc; + + /* Temp and pressure shifts are disabled when PRC <= 8 */ + rc = regmap_write_bits(data->regmap, DPS310_CFG_REG, + DPS310_PRS_SHIFT_EN | DPS310_TMP_SHIFT_EN, 0); + if (rc) + return rc; + + /* MEAS_CFG doesn't update correctly unless first written with 0 */ + rc = regmap_write_bits(data->regmap, DPS310_MEAS_CFG, + DPS310_MEAS_CTRL_BITS, 0); + if (rc) + return rc; + + /* Turn on temperature and pressure measurement in the background */ + rc = regmap_write_bits(data->regmap, DPS310_MEAS_CFG, + DPS310_MEAS_CTRL_BITS, DPS310_PRS_EN | + DPS310_TEMP_EN | DPS310_BACKGROUND); + if (rc) + return rc; + + /* + * Calibration coefficients required for reporting temperature. + * They are available 40ms after the device has started + */ + rc = regmap_read_poll_timeout(data->regmap, DPS310_MEAS_CFG, ready, + ready & DPS310_COEF_RDY, 10000, 40000); + if (rc) + return rc; + + rc = dps310_get_coefs(data); + if (rc) + return rc; + + return dps310_temp_workaround(data); +} + static int dps310_get_pres_precision(struct dps310_data *data) { int rc; @@ -297,11 +394,69 @@ static int dps310_get_temp_k(struct dps310_data *data) return scale_factors[ilog2(rc)]; } +static int dps310_reset_wait(struct dps310_data *data) +{ + int rc; + + rc = regmap_write(data->regmap, DPS310_RESET, DPS310_RESET_MAGIC); + if (rc) + return rc; + + /* Wait for device chip access: 15ms in specification */ + usleep_range(15000, 55000); + return 0; +} + +static int dps310_reset_reinit(struct dps310_data *data) +{ + int rc; + + rc = dps310_reset_wait(data); + if (rc) + return rc; + + return dps310_startup(data); +} + +static int dps310_ready_status(struct dps310_data *data, int ready_bit, int timeout) +{ + int sleep = DPS310_POLL_SLEEP_US(timeout); + int ready; + + return regmap_read_poll_timeout(data->regmap, DPS310_MEAS_CFG, ready, ready & ready_bit, + sleep, timeout); +} + +static int dps310_ready(struct dps310_data *data, int ready_bit, int timeout) +{ + int rc; + + rc = dps310_ready_status(data, ready_bit, timeout); + if (rc) { + if (rc == -ETIMEDOUT && !data->timeout_recovery_failed) { + /* Reset and reinitialize the chip. */ + if (dps310_reset_reinit(data)) { + data->timeout_recovery_failed = true; + } else { + /* Try again to get sensor ready status. */ + if (dps310_ready_status(data, ready_bit, timeout)) + data->timeout_recovery_failed = true; + else + return 0; + } + } + + return rc; + } + + data->timeout_recovery_failed = false; + return 0; +} + static int dps310_read_pres_raw(struct dps310_data *data) { int rc; int rate; - int ready; int timeout; s32 raw; u8 val[3]; @@ -313,9 +468,7 @@ static int dps310_read_pres_raw(struct dps310_data *data) timeout = DPS310_POLL_TIMEOUT_US(rate); /* Poll for sensor readiness; base the timeout upon the sample rate. */ - rc = regmap_read_poll_timeout(data->regmap, DPS310_MEAS_CFG, ready, - ready & DPS310_PRS_RDY, - DPS310_POLL_SLEEP_US(timeout), timeout); + rc = dps310_ready(data, DPS310_PRS_RDY, timeout); if (rc) goto done; @@ -352,7 +505,6 @@ static int dps310_read_temp_raw(struct dps310_data *data) { int rc; int rate; - int ready; int timeout; if (mutex_lock_interruptible(&data->lock)) @@ -362,10 +514,8 @@ static int dps310_read_temp_raw(struct dps310_data *data) timeout = DPS310_POLL_TIMEOUT_US(rate); /* Poll for sensor readiness; base the timeout upon the sample rate. */ - rc = regmap_read_poll_timeout(data->regmap, DPS310_MEAS_CFG, ready, - ready & DPS310_TMP_RDY, - DPS310_POLL_SLEEP_US(timeout), timeout); - if (rc < 0) + rc = dps310_ready(data, DPS310_TMP_RDY, timeout); + if (rc) goto done; rc = dps310_read_temp_ready(data); @@ -660,7 +810,7 @@ static void dps310_reset(void *action_data) { struct dps310_data *data = action_data; - regmap_write(data->regmap, DPS310_RESET, DPS310_RESET_MAGIC); + dps310_reset_wait(data); } static const struct regmap_config dps310_regmap_config = { @@ -677,52 +827,12 @@ static const struct iio_info dps310_info = { .write_raw = dps310_write_raw, }; -/* - * Some verions of chip will read temperatures in the ~60C range when - * its actually ~20C. This is the manufacturer recommended workaround - * to correct the issue. The registers used below are undocumented. - */ -static int dps310_temp_workaround(struct dps310_data *data) -{ - int rc; - int reg; - - rc = regmap_read(data->regmap, 0x32, ®); - if (rc < 0) - return rc; - - /* - * If bit 1 is set then the device is okay, and the workaround does not - * need to be applied - */ - if (reg & BIT(1)) - return 0; - - rc = regmap_write(data->regmap, 0x0e, 0xA5); - if (rc < 0) - return rc; - - rc = regmap_write(data->regmap, 0x0f, 0x96); - if (rc < 0) - return rc; - - rc = regmap_write(data->regmap, 0x62, 0x02); - if (rc < 0) - return rc; - - rc = regmap_write(data->regmap, 0x0e, 0x00); - if (rc < 0) - return rc; - - return regmap_write(data->regmap, 0x0f, 0x00); -} - static int dps310_probe(struct i2c_client *client, const struct i2c_device_id *id) { struct dps310_data *data; struct iio_dev *iio; - int rc, ready; + int rc; iio = devm_iio_device_alloc(&client->dev, sizeof(*data)); if (!iio) @@ -748,54 +858,8 @@ static int dps310_probe(struct i2c_client *client, if (rc) return rc; - /* - * Set up pressure sensor in single sample, one measurement per second - * mode - */ - rc = regmap_write(data->regmap, DPS310_PRS_CFG, 0); - - /* - * Set up external (MEMS) temperature sensor in single sample, one - * measurement per second mode - */ - rc = regmap_write(data->regmap, DPS310_TMP_CFG, DPS310_TMP_EXT); - if (rc < 0) - return rc; - - /* Temp and pressure shifts are disabled when PRC <= 8 */ - rc = regmap_write_bits(data->regmap, DPS310_CFG_REG, - DPS310_PRS_SHIFT_EN | DPS310_TMP_SHIFT_EN, 0); - if (rc < 0) - return rc; - - /* MEAS_CFG doesn't update correctly unless first written with 0 */ - rc = regmap_write_bits(data->regmap, DPS310_MEAS_CFG, - DPS310_MEAS_CTRL_BITS, 0); - if (rc < 0) - return rc; - - /* Turn on temperature and pressure measurement in the background */ - rc = regmap_write_bits(data->regmap, DPS310_MEAS_CFG, - DPS310_MEAS_CTRL_BITS, DPS310_PRS_EN | - DPS310_TEMP_EN | DPS310_BACKGROUND); - if (rc < 0) - return rc; - - /* - * Calibration coefficients required for reporting temperature. - * They are available 40ms after the device has started - */ - rc = regmap_read_poll_timeout(data->regmap, DPS310_MEAS_CFG, ready, - ready & DPS310_COEF_RDY, 10000, 40000); - if (rc < 0) - return rc; - - rc = dps310_get_coefs(data); - if (rc < 0) - return rc; - - rc = dps310_temp_workaround(data); - if (rc < 0) + rc = dps310_startup(data); + if (rc) return rc; rc = devm_iio_device_register(&client->dev, iio); diff --git a/drivers/iio/pressure/ms5611.h b/drivers/iio/pressure/ms5611.h index bc06271fa38b..5e2d2d4d87b5 100644 --- a/drivers/iio/pressure/ms5611.h +++ b/drivers/iio/pressure/ms5611.h @@ -25,13 +25,6 @@ enum { MS5607, }; -struct ms5611_chip_info { - u16 prom[MS5611_PROM_WORDS_NB]; - - int (*temp_and_pressure_compensate)(struct ms5611_chip_info *chip_info, - s32 *temp, s32 *pressure); -}; - /* * OverSampling Rate descriptor. * Warning: cmd MUST be kept aligned on a word boundary (see @@ -50,12 +43,15 @@ struct ms5611_state { const struct ms5611_osr *pressure_osr; const struct ms5611_osr *temp_osr; - int (*reset)(struct device *dev); - int (*read_prom_word)(struct device *dev, int index, u16 *word); - int (*read_adc_temp_and_pressure)(struct device *dev, + u16 prom[MS5611_PROM_WORDS_NB]; + + int (*reset)(struct ms5611_state *st); + int (*read_prom_word)(struct ms5611_state *st, int index, u16 *word); + int (*read_adc_temp_and_pressure)(struct ms5611_state *st, s32 *temp, s32 *pressure); - struct ms5611_chip_info *chip_info; + int (*compensate_temp_and_pressure)(struct ms5611_state *st, s32 *temp, + s32 *pressure); struct regulator *vdd; }; diff --git a/drivers/iio/pressure/ms5611_core.c b/drivers/iio/pressure/ms5611_core.c index f5db9fa086f3..6943d118752e 100644 --- a/drivers/iio/pressure/ms5611_core.c +++ b/drivers/iio/pressure/ms5611_core.c @@ -76,7 +76,7 @@ static bool ms5611_prom_is_valid(u16 *prom, size_t len) crc = (crc >> 12) & 0x000F; - return crc_orig != 0x0000 && crc == crc_orig; + return crc == crc_orig; } static int ms5611_read_prom(struct iio_dev *indio_dev) @@ -85,8 +85,7 @@ static int ms5611_read_prom(struct iio_dev *indio_dev) struct ms5611_state *st = iio_priv(indio_dev); for (i = 0; i < MS5611_PROM_WORDS_NB; i++) { - ret = st->read_prom_word(&indio_dev->dev, - i, &st->chip_info->prom[i]); + ret = st->read_prom_word(st, i, &st->prom[i]); if (ret < 0) { dev_err(&indio_dev->dev, "failed to read prom at %d\n", i); @@ -94,7 +93,7 @@ static int ms5611_read_prom(struct iio_dev *indio_dev) } } - if (!ms5611_prom_is_valid(st->chip_info->prom, MS5611_PROM_WORDS_NB)) { + if (!ms5611_prom_is_valid(st->prom, MS5611_PROM_WORDS_NB)) { dev_err(&indio_dev->dev, "PROM integrity check failed\n"); return -ENODEV; } @@ -108,28 +107,27 @@ static int ms5611_read_temp_and_pressure(struct iio_dev *indio_dev, int ret; struct ms5611_state *st = iio_priv(indio_dev); - ret = st->read_adc_temp_and_pressure(&indio_dev->dev, temp, pressure); + ret = st->read_adc_temp_and_pressure(st, temp, pressure); if (ret < 0) { dev_err(&indio_dev->dev, "failed to read temperature and pressure\n"); return ret; } - return st->chip_info->temp_and_pressure_compensate(st->chip_info, - temp, pressure); + return st->compensate_temp_and_pressure(st, temp, pressure); } -static int ms5611_temp_and_pressure_compensate(struct ms5611_chip_info *chip_info, +static int ms5611_temp_and_pressure_compensate(struct ms5611_state *st, s32 *temp, s32 *pressure) { s32 t = *temp, p = *pressure; s64 off, sens, dt; - dt = t - (chip_info->prom[5] << 8); - off = ((s64)chip_info->prom[2] << 16) + ((chip_info->prom[4] * dt) >> 7); - sens = ((s64)chip_info->prom[1] << 15) + ((chip_info->prom[3] * dt) >> 8); + dt = t - (st->prom[5] << 8); + off = ((s64)st->prom[2] << 16) + ((st->prom[4] * dt) >> 7); + sens = ((s64)st->prom[1] << 15) + ((st->prom[3] * dt) >> 8); - t = 2000 + ((chip_info->prom[6] * dt) >> 23); + t = 2000 + ((st->prom[6] * dt) >> 23); if (t < 2000) { s64 off2, sens2, t2; @@ -155,17 +153,17 @@ static int ms5611_temp_and_pressure_compensate(struct ms5611_chip_info *chip_inf return 0; } -static int ms5607_temp_and_pressure_compensate(struct ms5611_chip_info *chip_info, +static int ms5607_temp_and_pressure_compensate(struct ms5611_state *st, s32 *temp, s32 *pressure) { s32 t = *temp, p = *pressure; s64 off, sens, dt; - dt = t - (chip_info->prom[5] << 8); - off = ((s64)chip_info->prom[2] << 17) + ((chip_info->prom[4] * dt) >> 6); - sens = ((s64)chip_info->prom[1] << 16) + ((chip_info->prom[3] * dt) >> 7); + dt = t - (st->prom[5] << 8); + off = ((s64)st->prom[2] << 17) + ((st->prom[4] * dt) >> 6); + sens = ((s64)st->prom[1] << 16) + ((st->prom[3] * dt) >> 7); - t = 2000 + ((chip_info->prom[6] * dt) >> 23); + t = 2000 + ((st->prom[6] * dt) >> 23); if (t < 2000) { s64 off2, sens2, t2, tmp; @@ -196,7 +194,7 @@ static int ms5611_reset(struct iio_dev *indio_dev) int ret; struct ms5611_state *st = iio_priv(indio_dev); - ret = st->reset(&indio_dev->dev); + ret = st->reset(st); if (ret < 0) { dev_err(&indio_dev->dev, "failed to reset device\n"); return ret; @@ -343,15 +341,6 @@ static int ms5611_write_raw(struct iio_dev *indio_dev, static const unsigned long ms5611_scan_masks[] = {0x3, 0}; -static struct ms5611_chip_info chip_info_tbl[] = { - [MS5611] = { - .temp_and_pressure_compensate = ms5611_temp_and_pressure_compensate, - }, - [MS5607] = { - .temp_and_pressure_compensate = ms5607_temp_and_pressure_compensate, - } -}; - static const struct iio_chan_spec ms5611_channels[] = { { .type = IIO_PRESSURE, @@ -434,7 +423,20 @@ int ms5611_probe(struct iio_dev *indio_dev, struct device *dev, struct ms5611_state *st = iio_priv(indio_dev); mutex_init(&st->lock); - st->chip_info = &chip_info_tbl[type]; + + switch (type) { + case MS5611: + st->compensate_temp_and_pressure = + ms5611_temp_and_pressure_compensate; + break; + case MS5607: + st->compensate_temp_and_pressure = + ms5607_temp_and_pressure_compensate; + break; + default: + return -EINVAL; + } + st->temp_osr = &ms5611_avail_temp_osr[ARRAY_SIZE(ms5611_avail_temp_osr) - 1]; st->pressure_osr = diff --git a/drivers/iio/pressure/ms5611_i2c.c b/drivers/iio/pressure/ms5611_i2c.c index 8089c59adce5..3175816e657f 100644 --- a/drivers/iio/pressure/ms5611_i2c.c +++ b/drivers/iio/pressure/ms5611_i2c.c @@ -18,17 +18,15 @@ #include "ms5611.h" -static int ms5611_i2c_reset(struct device *dev) +static int ms5611_i2c_reset(struct ms5611_state *st) { - struct ms5611_state *st = iio_priv(dev_to_iio_dev(dev)); - return i2c_smbus_write_byte(st->client, MS5611_RESET); } -static int ms5611_i2c_read_prom_word(struct device *dev, int index, u16 *word) +static int ms5611_i2c_read_prom_word(struct ms5611_state *st, int index, + u16 *word) { int ret; - struct ms5611_state *st = iio_priv(dev_to_iio_dev(dev)); ret = i2c_smbus_read_word_swapped(st->client, MS5611_READ_PROM_WORD + (index << 1)); @@ -55,11 +53,10 @@ static int ms5611_i2c_read_adc(struct ms5611_state *st, s32 *val) return 0; } -static int ms5611_i2c_read_adc_temp_and_pressure(struct device *dev, +static int ms5611_i2c_read_adc_temp_and_pressure(struct ms5611_state *st, s32 *temp, s32 *pressure) { int ret; - struct ms5611_state *st = iio_priv(dev_to_iio_dev(dev)); const struct ms5611_osr *osr = st->temp_osr; ret = i2c_smbus_write_byte(st->client, osr->cmd); diff --git a/drivers/iio/pressure/ms5611_spi.c b/drivers/iio/pressure/ms5611_spi.c index b463eaa799ab..6e9cab61bc32 100644 --- a/drivers/iio/pressure/ms5611_spi.c +++ b/drivers/iio/pressure/ms5611_spi.c @@ -13,18 +13,17 @@ #include "ms5611.h" -static int ms5611_spi_reset(struct device *dev) +static int ms5611_spi_reset(struct ms5611_state *st) { u8 cmd = MS5611_RESET; - struct ms5611_state *st = iio_priv(dev_to_iio_dev(dev)); return spi_write_then_read(st->client, &cmd, 1, NULL, 0); } -static int ms5611_spi_read_prom_word(struct device *dev, int index, u16 *word) +static int ms5611_spi_read_prom_word(struct ms5611_state *st, int index, + u16 *word) { int ret; - struct ms5611_state *st = iio_priv(dev_to_iio_dev(dev)); ret = spi_w8r16be(st->client, MS5611_READ_PROM_WORD + (index << 1)); if (ret < 0) @@ -35,11 +34,10 @@ static int ms5611_spi_read_prom_word(struct device *dev, int index, u16 *word) return 0; } -static int ms5611_spi_read_adc(struct device *dev, s32 *val) +static int ms5611_spi_read_adc(struct ms5611_state *st, s32 *val) { int ret; u8 buf[3] = { MS5611_READ_ADC }; - struct ms5611_state *st = iio_priv(dev_to_iio_dev(dev)); ret = spi_write_then_read(st->client, buf, 1, buf, 3); if (ret < 0) @@ -50,11 +48,10 @@ static int ms5611_spi_read_adc(struct device *dev, s32 *val) return 0; } -static int ms5611_spi_read_adc_temp_and_pressure(struct device *dev, +static int ms5611_spi_read_adc_temp_and_pressure(struct ms5611_state *st, s32 *temp, s32 *pressure) { int ret; - struct ms5611_state *st = iio_priv(dev_to_iio_dev(dev)); const struct ms5611_osr *osr = st->temp_osr; /* @@ -66,7 +63,7 @@ static int ms5611_spi_read_adc_temp_and_pressure(struct device *dev, return ret; usleep_range(osr->conv_usec, osr->conv_usec + (osr->conv_usec / 10UL)); - ret = ms5611_spi_read_adc(dev, temp); + ret = ms5611_spi_read_adc(st, temp); if (ret < 0) return ret; @@ -76,7 +73,7 @@ static int ms5611_spi_read_adc_temp_and_pressure(struct device *dev, return ret; usleep_range(osr->conv_usec, osr->conv_usec + (osr->conv_usec / 10UL)); - return ms5611_spi_read_adc(dev, pressure); + return ms5611_spi_read_adc(st, pressure); } static int ms5611_spi_probe(struct spi_device *spi) @@ -92,7 +89,7 @@ static int ms5611_spi_probe(struct spi_device *spi) spi_set_drvdata(spi, indio_dev); spi->mode = SPI_MODE_0; - spi->max_speed_hz = 20000000; + spi->max_speed_hz = min(spi->max_speed_hz, 20000000U); spi->bits_per_word = 8; ret = spi_setup(spi); if (ret < 0) diff --git a/drivers/iio/trigger/iio-trig-sysfs.c b/drivers/iio/trigger/iio-trig-sysfs.c index e09e58072872..9ed5b9405ade 100644 --- a/drivers/iio/trigger/iio-trig-sysfs.c +++ b/drivers/iio/trigger/iio-trig-sysfs.c @@ -196,6 +196,7 @@ static int iio_sysfs_trigger_remove(int id) } iio_trigger_unregister(t->trig); + irq_work_sync(&t->work); iio_trigger_free(t->trig); list_del(&t->l); @@ -208,9 +209,13 @@ static int iio_sysfs_trigger_remove(int id) static int __init iio_sysfs_trig_init(void) { + int ret; device_initialize(&iio_sysfs_trig_dev); dev_set_name(&iio_sysfs_trig_dev, "iio_sysfs_trigger"); - return device_add(&iio_sysfs_trig_dev); + ret = device_add(&iio_sysfs_trig_dev); + if (ret) + put_device(&iio_sysfs_trig_dev); + return ret; } module_init(iio_sysfs_trig_init); |