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); channel = find_first_bit(indio_dev->active_scan_mask, indio_dev->masklength); val = VF610_ADC_ADCHC(channel); val |= VF610_ADC_AIEN; writel(val, info->regs + VF610_REG_ADC_HC0); return 0; }
static int st_gyro_buffer_postenable(struct iio_dev *indio_dev) { int err; struct st_sensor_data *gdata = iio_priv(indio_dev); gdata->buffer_data = kmalloc(indio_dev->scan_bytes, GFP_KERNEL); if (gdata->buffer_data == NULL) { err = -ENOMEM; goto allocate_memory_error; } err = st_sensors_set_axis_enable(indio_dev, (u8)indio_dev->active_scan_mask[0]); if (err < 0) goto st_gyro_buffer_postenable_error; err = iio_triggered_buffer_postenable(indio_dev); if (err < 0) goto st_gyro_buffer_postenable_error; return err; st_gyro_buffer_postenable_error: kfree(gdata->buffer_data); allocate_memory_error: return err; }
static int st_press_buffer_postenable(struct iio_dev *indio_dev) { int err; struct st_sensor_data *pdata = iio_priv(indio_dev); pdata->buffer_data = kmalloc(indio_dev->scan_bytes, GFP_KERNEL); if (pdata->buffer_data == NULL) { err = -ENOMEM; goto allocate_memory_error; } err = iio_triggered_buffer_postenable(indio_dev); if (err < 0) goto st_press_buffer_postenable_error; return err; st_press_buffer_postenable_error: kfree(pdata->buffer_data); allocate_memory_error: return err; }