diff options
Diffstat (limited to 'drivers/iio/adc/vf610_adc.c')
| -rw-r--r-- | drivers/iio/adc/vf610_adc.c | 41 |
1 files changed, 17 insertions, 24 deletions
diff --git a/drivers/iio/adc/vf610_adc.c b/drivers/iio/adc/vf610_adc.c index cb7380bf07ca..c6b16cf6e367 100644 --- a/drivers/iio/adc/vf610_adc.c +++ b/drivers/iio/adc/vf610_adc.c @@ -5,7 +5,9 @@ * Copyright 2013 Freescale Semiconductor, Inc. */ +#include <linux/mod_devicetable.h> #include <linux/module.h> +#include <linux/property.h> #include <linux/platform_device.h> #include <linux/interrupt.h> #include <linux/delay.h> @@ -14,10 +16,7 @@ #include <linux/io.h> #include <linux/clk.h> #include <linux/completion.h> -#include <linux/of.h> -#include <linux/of_irq.h> #include <linux/regulator/consumer.h> -#include <linux/of_platform.h> #include <linux/err.h> #include <linux/iio/iio.h> @@ -167,7 +166,11 @@ struct vf610_adc { u32 sample_freq_avail[5]; struct completion completion; - u16 buffer[8]; + /* Ensure the timestamp is naturally aligned */ + struct { + u16 chan; + s64 timestamp __aligned(8); + } scan; }; static const u32 vf610_hw_avgs[] = { 1, 4, 8, 16, 32 }; @@ -579,9 +582,9 @@ static irqreturn_t vf610_adc_isr(int irq, void *dev_id) if (coco & VF610_ADC_HS_COCO0) { info->value = vf610_adc_read_data(info); if (iio_buffer_enabled(indio_dev)) { - info->buffer[0] = info->value; + info->scan.chan = info->value; iio_push_to_buffers_with_timestamp(indio_dev, - info->buffer, + &info->scan, iio_get_time_ns(indio_dev)); iio_trigger_notify_done(indio_dev->trig); } else @@ -724,13 +727,8 @@ static int vf610_adc_buffer_postenable(struct iio_dev *indio_dev) { struct vf610_adc *info = iio_priv(indio_dev); unsigned int channel; - int ret; int val; - ret = iio_triggered_buffer_postenable(indio_dev); - if (ret) - return ret; - val = readl(info->regs + VF610_REG_ADC_GC); val |= VF610_ADC_ADCON; writel(val, info->regs + VF610_REG_ADC_GC); @@ -761,7 +759,7 @@ static int vf610_adc_buffer_predisable(struct iio_dev *indio_dev) writel(hc_cfg, info->regs + VF610_REG_ADC_HC0); - return iio_triggered_buffer_predisable(indio_dev); + return 0; } static const struct iio_buffer_setup_ops iio_triggered_buffer_setup_ops = { @@ -800,6 +798,7 @@ MODULE_DEVICE_TABLE(of, vf610_adc_match); static int vf610_adc_probe(struct platform_device *pdev) { + struct device *dev = &pdev->dev; struct vf610_adc *info; struct iio_dev *indio_dev; int irq; @@ -847,21 +846,16 @@ static int vf610_adc_probe(struct platform_device *pdev) info->vref_uv = regulator_get_voltage(info->vref); - of_property_read_u32_array(pdev->dev.of_node, "fsl,adck-max-frequency", - info->max_adck_rate, 3); + device_property_read_u32_array(dev, "fsl,adck-max-frequency", info->max_adck_rate, 3); - ret = of_property_read_u32(pdev->dev.of_node, "min-sample-time", - &info->adc_feature.default_sample_time); - if (ret) - info->adc_feature.default_sample_time = DEFAULT_SAMPLE_TIME; + info->adc_feature.default_sample_time = DEFAULT_SAMPLE_TIME; + device_property_read_u32(dev, "min-sample-time", &info->adc_feature.default_sample_time); platform_set_drvdata(pdev, indio_dev); init_completion(&info->completion); indio_dev->name = dev_name(&pdev->dev); - indio_dev->dev.parent = &pdev->dev; - indio_dev->dev.of_node = pdev->dev.of_node; indio_dev->info = &vf610_adc_iio_info; indio_dev->modes = INDIO_DIRECT_MODE; indio_dev->channels = vf610_adc_iio_channels; @@ -915,7 +909,6 @@ static int vf610_adc_remove(struct platform_device *pdev) return 0; } -#ifdef CONFIG_PM_SLEEP static int vf610_adc_suspend(struct device *dev) { struct iio_dev *indio_dev = dev_get_drvdata(dev); @@ -955,9 +948,9 @@ disable_reg: regulator_disable(info->vref); return ret; } -#endif -static SIMPLE_DEV_PM_OPS(vf610_adc_pm_ops, vf610_adc_suspend, vf610_adc_resume); +static DEFINE_SIMPLE_DEV_PM_OPS(vf610_adc_pm_ops, vf610_adc_suspend, + vf610_adc_resume); static struct platform_driver vf610_adc_driver = { .probe = vf610_adc_probe, @@ -965,7 +958,7 @@ static struct platform_driver vf610_adc_driver = { .driver = { .name = DRIVER_NAME, .of_match_table = vf610_adc_match, - .pm = &vf610_adc_pm_ops, + .pm = pm_sleep_ptr(&vf610_adc_pm_ops), }, }; |