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Date: Sat, 3 Oct 2015 12:09:36 +0100
From: Jonathan Cameron <jic23@...nel.org>
To: "Tirdea, Irina" <irina.tirdea@...el.com>,
Markus Pargmann <mpa@...gutronix.de>
Cc: Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>,
Lars-Peter Clausen <lars@...afoo.de>,
"linux-iio@...r.kernel.org" <linux-iio@...r.kernel.org>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
"kernel@...gutronix.de" <kernel@...gutronix.de>
Subject: Re: [PATCH v3 2/4] iio: bcm150: Remove i2c_client from private data
On 23/09/15 13:47, Tirdea, Irina wrote:
>
>
>> -----Original Message-----
>> From: Markus Pargmann [mailto:mpa@...gutronix.de]
>> Sent: 21 September, 2015 13:55
>> To: Jonathan Cameron
>> Cc: Srinivas Pandruvada; Tirdea, Irina; Lars-Peter Clausen; linux-iio@...r.kernel.org; linux-kernel@...r.kernel.org;
>> kernel@...gutronix.de; Markus Pargmann
>> Subject: [PATCH v3 2/4] iio: bcm150: Remove i2c_client from private data
>>
>> i2c_client struct is now only used for debugging output. We can use the
>> device struct as well so we can remove all struct i2c_client usage.
>>
>> Signed-off-by: Markus Pargmann <mpa@...gutronix.de>
>> Acked-by: Jonathan Cameron <jic23@...nel.org>
>
> Tested-by: Irina Tirdea <irina.tirdea@...el.com>
The gpio probe acpi function went away in the meantime so this ended up a bit
shorter than here, but the merge was straight forward.
Please do check however that I didn't mess it up!
Applied to the togreg branch of iio.git - initially pushed out as
testing for the autobuilders to play with it.
>
>> ---
>> drivers/iio/accel/bmc150-accel.c | 116 +++++++++++++++++++--------------------
>> 1 file changed, 56 insertions(+), 60 deletions(-)
>>
>> diff --git a/drivers/iio/accel/bmc150-accel.c b/drivers/iio/accel/bmc150-accel.c
>> index a17034fd53fb..425885dc6800 100644
>> --- a/drivers/iio/accel/bmc150-accel.c
>> +++ b/drivers/iio/accel/bmc150-accel.c
>> @@ -186,9 +186,9 @@ enum bmc150_accel_trigger_id {
>> };
>>
>> struct bmc150_accel_data {
>> - struct i2c_client *client;
>> struct regmap *regmap;
>> struct device *dev;
>> + int irq;
>> struct bmc150_accel_interrupt interrupts[BMC150_ACCEL_INTERRUPTS];
>> atomic_t active_intr;
>> struct bmc150_accel_trigger triggers[BMC150_ACCEL_TRIGGERS];
>> @@ -278,11 +278,11 @@ static int bmc150_accel_set_mode(struct bmc150_accel_data *data,
>> lpw_bits = mode << BMC150_ACCEL_PMU_MODE_SHIFT;
>> lpw_bits |= (dur_val << BMC150_ACCEL_PMU_BIT_SLEEP_DUR_SHIFT);
>>
>> - dev_dbg(&data->client->dev, "Set Mode bits %x\n", lpw_bits);
>> + dev_dbg(data->dev, "Set Mode bits %x\n", lpw_bits);
>>
>> ret = regmap_write(data->regmap, BMC150_ACCEL_REG_PMU_LPW, lpw_bits);
>> if (ret < 0) {
>> - dev_err(&data->client->dev, "Error writing reg_pmu_lpw\n");
>> + dev_err(data->dev, "Error writing reg_pmu_lpw\n");
>> return ret;
>> }
>>
>> @@ -320,18 +320,18 @@ static int bmc150_accel_update_slope(struct bmc150_accel_data *data)
>> ret = regmap_write(data->regmap, BMC150_ACCEL_REG_INT_6,
>> data->slope_thres);
>> if (ret < 0) {
>> - dev_err(&data->client->dev, "Error writing reg_int_6\n");
>> + dev_err(data->dev, "Error writing reg_int_6\n");
>> return ret;
>> }
>>
>> ret = regmap_update_bits(data->regmap, BMC150_ACCEL_REG_INT_5,
>> BMC150_ACCEL_SLOPE_DUR_MASK, data->slope_dur);
>> if (ret < 0) {
>> - dev_err(&data->client->dev, "Error updating reg_int_5\n");
>> + dev_err(data->dev, "Error updating reg_int_5\n");
>> return ret;
>> }
>>
>> - dev_dbg(&data->client->dev, "%s: %x %x\n", __func__, data->slope_thres,
>> + dev_dbg(data->dev, "%s: %x %x\n", __func__, data->slope_thres,
>> data->slope_dur);
>>
>> return ret;
>> @@ -380,17 +380,17 @@ static int bmc150_accel_set_power_state(struct bmc150_accel_data *data, bool on)
>> int ret;
>>
>> if (on) {
>> - ret = pm_runtime_get_sync(&data->client->dev);
>> + ret = pm_runtime_get_sync(data->dev);
>> } else {
>> - pm_runtime_mark_last_busy(&data->client->dev);
>> - ret = pm_runtime_put_autosuspend(&data->client->dev);
>> + pm_runtime_mark_last_busy(data->dev);
>> + ret = pm_runtime_put_autosuspend(data->dev);
>> }
>>
>> if (ret < 0) {
>> - dev_err(&data->client->dev,
>> + dev_err(data->dev,
>> "Failed: bmc150_accel_set_power_state for %d\n", on);
>> if (on)
>> - pm_runtime_put_noidle(&data->client->dev);
>> + pm_runtime_put_noidle(data->dev);
>>
>> return ret;
>> }
>> @@ -473,7 +473,7 @@ static int bmc150_accel_set_interrupt(struct bmc150_accel_data *data, int i,
>> ret = regmap_update_bits(data->regmap, info->map_reg, info->map_bitmask,
>> (state ? info->map_bitmask : 0));
>> if (ret < 0) {
>> - dev_err(&data->client->dev, "Error updating reg_int_map\n");
>> + dev_err(data->dev, "Error updating reg_int_map\n");
>> goto out_fix_power_state;
>> }
>>
>> @@ -481,7 +481,7 @@ static int bmc150_accel_set_interrupt(struct bmc150_accel_data *data, int i,
>> ret = regmap_update_bits(data->regmap, info->en_reg, info->en_bitmask,
>> (state ? info->en_bitmask : 0));
>> if (ret < 0) {
>> - dev_err(&data->client->dev, "Error updating reg_int_en\n");
>> + dev_err(data->dev, "Error updating reg_int_en\n");
>> goto out_fix_power_state;
>> }
>>
>> @@ -507,7 +507,7 @@ static int bmc150_accel_set_scale(struct bmc150_accel_data *data, int val)
>> BMC150_ACCEL_REG_PMU_RANGE,
>> data->chip_info->scale_table[i].reg_range);
>> if (ret < 0) {
>> - dev_err(&data->client->dev,
>> + dev_err(data->dev,
>> "Error writing pmu_range\n");
>> return ret;
>> }
>> @@ -529,7 +529,7 @@ static int bmc150_accel_get_temp(struct bmc150_accel_data *data, int *val)
>>
>> ret = regmap_read(data->regmap, BMC150_ACCEL_REG_TEMP, &value);
>> if (ret < 0) {
>> - dev_err(&data->client->dev, "Error reading reg_temp\n");
>> + dev_err(data->dev, "Error reading reg_temp\n");
>> mutex_unlock(&data->mutex);
>> return ret;
>> }
>> @@ -558,7 +558,7 @@ static int bmc150_accel_get_axis(struct bmc150_accel_data *data,
>> ret = regmap_bulk_read(data->regmap, BMC150_ACCEL_AXIS_TO_REG(axis),
>> &raw_val, 2);
>> if (ret < 0) {
>> - dev_err(&data->client->dev, "Error reading axis %d\n", axis);
>> + dev_err(data->dev, "Error reading axis %d\n", axis);
>> bmc150_accel_set_power_state(data, false);
>> mutex_unlock(&data->mutex);
>> return ret;
>> @@ -872,7 +872,7 @@ static int __bmc150_accel_fifo_flush(struct iio_dev *indio_dev,
>>
>> ret = regmap_read(data->regmap, BMC150_ACCEL_REG_FIFO_STATUS, &val);
>> if (ret < 0) {
>> - dev_err(&data->client->dev, "Error reading reg_fifo_status\n");
>> + dev_err(data->dev, "Error reading reg_fifo_status\n");
>> return ret;
>> }
>>
>> @@ -1159,7 +1159,7 @@ static int bmc150_accel_trig_try_reen(struct iio_trigger *trig)
>> BMC150_ACCEL_INT_MODE_LATCH_RESET);
>> mutex_unlock(&data->mutex);
>> if (ret < 0) {
>> - dev_err(&data->client->dev,
>> + dev_err(data->dev,
>> "Error writing reg_int_rst_latch\n");
>> return ret;
>> }
>> @@ -1217,7 +1217,7 @@ static int bmc150_accel_handle_roc_event(struct iio_dev *indio_dev)
>>
>> ret = regmap_read(data->regmap, BMC150_ACCEL_REG_INT_STATUS_2, &val);
>> if (ret < 0) {
>> - dev_err(&data->client->dev, "Error reading reg_int_status_2\n");
>> + dev_err(data->dev, "Error reading reg_int_status_2\n");
>> return ret;
>> }
>>
>> @@ -1283,8 +1283,7 @@ static irqreturn_t bmc150_accel_irq_thread_handler(int irq, void *private)
>> BMC150_ACCEL_INT_MODE_LATCH_INT |
>> BMC150_ACCEL_INT_MODE_LATCH_RESET);
>> if (ret)
>> - dev_err(&data->client->dev,
>> - "Error writing reg_int_rst_latch\n");
>> + dev_err(data->dev, "Error writing reg_int_rst_latch\n");
>>
>> ret = IRQ_HANDLED;
>> } else {
>> @@ -1323,17 +1322,13 @@ static irqreturn_t bmc150_accel_irq_handler(int irq, void *private)
>> return IRQ_NONE;
>> }
>>
>> -static int bmc150_accel_gpio_probe(struct i2c_client *client,
>> - struct bmc150_accel_data *data)
>> +static int bmc150_accel_gpio_probe(struct bmc150_accel_data *data)
>> {
>> struct device *dev;
>> struct gpio_desc *gpio;
>> int ret;
>>
>> - if (!client)
>> - return -EINVAL;
>> -
>> - dev = &client->dev;
>> + dev = data->dev;
>>
>> /* data ready gpio interrupt pin */
>> gpio = devm_gpiod_get_index(dev, BMC150_ACCEL_GPIO_NAME, 0, GPIOD_IN);
>> @@ -1386,7 +1381,7 @@ static int bmc150_accel_triggers_setup(struct iio_dev *indio_dev,
>> for (i = 0; i < BMC150_ACCEL_TRIGGERS; i++) {
>> struct bmc150_accel_trigger *t = &data->triggers[i];
>>
>> - t->indio_trig = devm_iio_trigger_alloc(&data->client->dev,
>> + t->indio_trig = devm_iio_trigger_alloc(data->dev,
>> bmc150_accel_triggers[i].name,
>> indio_dev->name,
>> indio_dev->id);
>> @@ -1395,7 +1390,7 @@ static int bmc150_accel_triggers_setup(struct iio_dev *indio_dev,
>> break;
>> }
>>
>> - t->indio_trig->dev.parent = &data->client->dev;
>> + t->indio_trig->dev.parent = data->dev;
>> t->indio_trig->ops = &bmc150_accel_trigger_ops;
>> t->intr = bmc150_accel_triggers[i].intr;
>> t->data = data;
>> @@ -1424,7 +1419,7 @@ static int bmc150_accel_fifo_set_mode(struct bmc150_accel_data *data)
>>
>> ret = regmap_write(data->regmap, reg, data->fifo_mode);
>> if (ret < 0) {
>> - dev_err(&data->client->dev, "Error writing reg_fifo_config1\n");
>> + dev_err(data->dev, "Error writing reg_fifo_config1\n");
>> return ret;
>> }
>>
>> @@ -1434,7 +1429,7 @@ static int bmc150_accel_fifo_set_mode(struct bmc150_accel_data *data)
>> ret = regmap_write(data->regmap, BMC150_ACCEL_REG_FIFO_CONFIG0,
>> data->watermark);
>> if (ret < 0)
>> - dev_err(&data->client->dev, "Error writing reg_fifo_config0\n");
>> + dev_err(data->dev, "Error writing reg_fifo_config0\n");
>>
>> return ret;
>> }
>> @@ -1523,12 +1518,12 @@ static int bmc150_accel_chip_init(struct bmc150_accel_data *data)
>>
>> ret = regmap_read(data->regmap, BMC150_ACCEL_REG_CHIP_ID, &val);
>> if (ret < 0) {
>> - dev_err(&data->client->dev,
>> + dev_err(data->dev,
>> "Error: Reading chip id\n");
>> return ret;
>> }
>>
>> - dev_dbg(&data->client->dev, "Chip Id %x\n", val);
>> + dev_dbg(data->dev, "Chip Id %x\n", val);
>> for (i = 0; i < ARRAY_SIZE(bmc150_accel_chip_info_tbl); i++) {
>> if (bmc150_accel_chip_info_tbl[i].chip_id == val) {
>> data->chip_info = &bmc150_accel_chip_info_tbl[i];
>> @@ -1537,7 +1532,7 @@ static int bmc150_accel_chip_init(struct bmc150_accel_data *data)
>> }
>>
>> if (!data->chip_info) {
>> - dev_err(&data->client->dev, "Invalid chip %x\n", val);
>> + dev_err(data->dev, "Invalid chip %x\n", val);
>> return -ENODEV;
>> }
>>
>> @@ -1554,7 +1549,7 @@ static int bmc150_accel_chip_init(struct bmc150_accel_data *data)
>> ret = regmap_write(data->regmap, BMC150_ACCEL_REG_PMU_RANGE,
>> BMC150_ACCEL_DEF_RANGE_4G);
>> if (ret < 0) {
>> - dev_err(&data->client->dev,
>> + dev_err(data->dev,
>> "Error writing reg_pmu_range\n");
>> return ret;
>> }
>> @@ -1573,7 +1568,7 @@ static int bmc150_accel_chip_init(struct bmc150_accel_data *data)
>> BMC150_ACCEL_INT_MODE_LATCH_INT |
>> BMC150_ACCEL_INT_MODE_LATCH_RESET);
>> if (ret < 0) {
>> - dev_err(&data->client->dev,
>> + dev_err(data->dev,
>> "Error writing reg_int_rst_latch\n");
>> return ret;
>> }
>> @@ -1588,6 +1583,7 @@ static int bmc150_accel_probe(struct i2c_client *client,
>> struct iio_dev *indio_dev;
>> int ret;
>> const char *name = NULL;
>> + struct device *dev;
>>
>> indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*data));
>> if (!indio_dev)
>> @@ -1595,12 +1591,13 @@ static int bmc150_accel_probe(struct i2c_client *client,
>>
>> data = iio_priv(indio_dev);
>> i2c_set_clientdata(client, indio_dev);
>> - data->client = client;
>> data->dev = &client->dev;
>> + dev = &client->dev;
>> + data->irq = client->irq;
>>
>> data->regmap = devm_regmap_init_i2c(client, &bmc150_i2c_regmap_conf);
>> if (IS_ERR(data->regmap)) {
>> - dev_err(&client->dev, "Failed to initialize i2c regmap\n");
>> + dev_err(dev, "Failed to initialize i2c regmap\n");
>> return PTR_ERR(data->regmap);
>> }
>>
>> @@ -1613,7 +1610,7 @@ static int bmc150_accel_probe(struct i2c_client *client,
>>
>> mutex_init(&data->mutex);
>>
>> - indio_dev->dev.parent = &client->dev;
>> + indio_dev->dev.parent = dev;
>> indio_dev->channels = data->chip_info->channels;
>> indio_dev->num_channels = data->chip_info->num_channels;
>> indio_dev->name = name ? name : data->chip_info->name;
>> @@ -1625,16 +1622,16 @@ static int bmc150_accel_probe(struct i2c_client *client,
>> bmc150_accel_trigger_handler,
>> &bmc150_accel_buffer_ops);
>> if (ret < 0) {
>> - dev_err(&client->dev, "Failed: iio triggered buffer setup\n");
>> + dev_err(data->dev, "Failed: iio triggered buffer setup\n");
>> return ret;
>> }
>>
>> - if (client->irq < 0)
>> - client->irq = bmc150_accel_gpio_probe(client, data);
>> + if (data->irq <= 0)
>> + data->irq = bmc150_accel_gpio_probe(data);
>>
>> - if (client->irq > 0) {
>> + if (data->irq > 0) {
>> ret = devm_request_threaded_irq(
>> - &client->dev, client->irq,
>> + data->dev, data->irq,
>> bmc150_accel_irq_handler,
>> bmc150_accel_irq_thread_handler,
>> IRQF_TRIGGER_RISING,
>> @@ -1652,7 +1649,7 @@ static int bmc150_accel_probe(struct i2c_client *client,
>> ret = regmap_write(data->regmap, BMC150_ACCEL_REG_INT_RST_LATCH,
>> BMC150_ACCEL_INT_MODE_LATCH_RESET);
>> if (ret < 0) {
>> - dev_err(&data->client->dev, "Error writing reg_int_rst_latch\n");
>> + dev_err(data->dev, "Error writing reg_int_rst_latch\n");
>> goto err_buffer_cleanup;
>> }
>>
>> @@ -1673,18 +1670,17 @@ static int bmc150_accel_probe(struct i2c_client *client,
>>
>> ret = iio_device_register(indio_dev);
>> if (ret < 0) {
>> - dev_err(&client->dev, "Unable to register iio device\n");
>> + dev_err(data->dev, "Unable to register iio device\n");
>> goto err_trigger_unregister;
>> }
>>
>> - ret = pm_runtime_set_active(&client->dev);
>> + ret = pm_runtime_set_active(dev);
>> if (ret)
>> goto err_iio_unregister;
>>
>> - pm_runtime_enable(&client->dev);
>> - pm_runtime_set_autosuspend_delay(&client->dev,
>> - BMC150_AUTO_SUSPEND_DELAY_MS);
>> - pm_runtime_use_autosuspend(&client->dev);
>> + pm_runtime_enable(dev);
>> + pm_runtime_set_autosuspend_delay(dev, BMC150_AUTO_SUSPEND_DELAY_MS);
>> + pm_runtime_use_autosuspend(dev);
>>
>> return 0;
>>
>> @@ -1703,9 +1699,9 @@ static int bmc150_accel_remove(struct i2c_client *client)
>> struct iio_dev *indio_dev = i2c_get_clientdata(client);
>> struct bmc150_accel_data *data = iio_priv(indio_dev);
>>
>> - pm_runtime_disable(&client->dev);
>> - pm_runtime_set_suspended(&client->dev);
>> - pm_runtime_put_noidle(&client->dev);
>> + pm_runtime_disable(data->dev);
>> + pm_runtime_set_suspended(data->dev);
>> + pm_runtime_put_noidle(data->dev);
>>
>> iio_device_unregister(indio_dev);
>>
>> @@ -1723,7 +1719,7 @@ static int bmc150_accel_remove(struct i2c_client *client)
>> #ifdef CONFIG_PM_SLEEP
>> static int bmc150_accel_suspend(struct device *dev)
>> {
>> - struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev));
>> + struct iio_dev *indio_dev = dev_get_drvdata(dev);
>> struct bmc150_accel_data *data = iio_priv(indio_dev);
>>
>> mutex_lock(&data->mutex);
>> @@ -1735,7 +1731,7 @@ static int bmc150_accel_suspend(struct device *dev)
>>
>> static int bmc150_accel_resume(struct device *dev)
>> {
>> - struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev));
>> + struct iio_dev *indio_dev = dev_get_drvdata(dev);
>> struct bmc150_accel_data *data = iio_priv(indio_dev);
>>
>> mutex_lock(&data->mutex);
>> @@ -1751,11 +1747,11 @@ static int bmc150_accel_resume(struct device *dev)
>> #ifdef CONFIG_PM
>> static int bmc150_accel_runtime_suspend(struct device *dev)
>> {
>> - struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev));
>> + struct iio_dev *indio_dev = dev_get_drvdata(dev);
>> struct bmc150_accel_data *data = iio_priv(indio_dev);
>> int ret;
>>
>> - dev_dbg(&data->client->dev, __func__);
>> + dev_dbg(data->dev, __func__);
>> ret = bmc150_accel_set_mode(data, BMC150_ACCEL_SLEEP_MODE_SUSPEND, 0);
>> if (ret < 0)
>> return -EAGAIN;
>> @@ -1765,12 +1761,12 @@ static int bmc150_accel_runtime_suspend(struct device *dev)
>>
>> static int bmc150_accel_runtime_resume(struct device *dev)
>> {
>> - struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev));
>> + struct iio_dev *indio_dev = dev_get_drvdata(dev);
>> struct bmc150_accel_data *data = iio_priv(indio_dev);
>> int ret;
>> int sleep_val;
>>
>> - dev_dbg(&data->client->dev, __func__);
>> + dev_dbg(data->dev, __func__);
>>
>> ret = bmc150_accel_set_mode(data, BMC150_ACCEL_SLEEP_MODE_NORMAL, 0);
>> if (ret < 0)
>> --
>> 2.5.1
>
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