[PATCH v3 07/30] iio: adc: remove mfd_probe & sunwi_irq_init function

Philipp Rossak
2018-08-30T15:44:55Z

In the previous commit we removed the function call, now we remove the
unused functions.

Signed-off-by: Philipp Rossak <embed3d-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
---
drivers/iio/adc/sun4i-gpadc-iio.c | 126 --------------------------------------
1 file changed, 126 deletions(-)

diff --git a/drivers/iio/adc/sun4i-gpadc-iio.c b/drivers/iio/adc/sun4i-gpadc-iio.c
index d6f00d3b802d..f787442a9e5f 100644
--- a/drivers/iio/adc/sun4i-gpadc-iio.c
+++ b/drivers/iio/adc/sun4i-gpadc-iio.c
@@ -431,55 +431,6 @@ static const struct dev_pm_ops sun4i_gpadc_pm_ops = {
.runtime_resume = &sun4i_gpadc_runtime_resume,
};

-static int sun4i_irq_init(struct platform_device *pdev, const char *name,
- irq_handler_t handler, const char *devname,
- unsigned int *irq, atomic_t *atomic)
-{
- int ret;
- struct sun4i_gpadc_dev *mfd_dev = dev_get_drvdata(pdev->dev.parent);
- struct sun4i_gpadc_iio *info = iio_priv(dev_get_drvdata(&pdev->dev));
-
- /*
- * Once the interrupt is activated, the IP continuously performs
- * conversions thus throws interrupts. The interrupt is activated right
- * after being requested but we want to control when these interrupts
- * occur thus we disable it right after being requested. However, an
- * interrupt might occur between these two instructions and we have to
- * make sure that does not happen, by using atomic flags. We set the
- * flag before requesting the interrupt and unset it right after
- * disabling the interrupt. When an interrupt occurs between these two
- * instructions, reading the atomic flag will tell us to ignore the
- * interrupt.
- */
- atomic_set(atomic, 1);
-
- ret = platform_get_irq_byname(pdev, name);
- if (ret < 0) {
- dev_err(&pdev->dev, "no %s interrupt registered\n", name);
- return ret;
- }
-
- ret = regmap_irq_get_virq(mfd_dev->regmap_irqc, ret);
- if (ret < 0) {
- dev_err(&pdev->dev, "failed to get virq for irq %s\n", name);
- return ret;
- }
-
- *irq = ret;
- ret = devm_request_any_context_irq(&pdev->dev, *irq, handler, 0,
- devname, info);
- if (ret < 0) {
- dev_err(&pdev->dev, "could not request %s interrupt: %d\n",
- name, ret);
- return ret;
- }
-
- disable_irq(*irq);
- atomic_set(atomic, 0);
-
- return 0;
-}
-
static const struct of_device_id sun4i_gpadc_of_id[] = {
{
.compatible = "allwinner,sun8i-a33-ths",
@@ -523,83 +474,6 @@ static int sun4i_gpadc_probe_dt(struct platform_device *pdev,
return 0;
}

-static int sun4i_gpadc_probe_mfd(struct platform_device *pdev,
- struct iio_dev *indio_dev)
-{
- struct sun4i_gpadc_iio *info = iio_priv(indio_dev);
- struct sun4i_gpadc_dev *sun4i_gpadc_dev =
- dev_get_drvdata(pdev->dev.parent);
- int ret;
-
- info->no_irq = false;
- info->regmap = sun4i_gpadc_dev->regmap;
-
- indio_dev->num_channels = ARRAY_SIZE(sun4i_gpadc_channels);
- indio_dev->channels = sun4i_gpadc_channels;
-
- info->data = (struct gpadc_data *)platform_get_device_id(pdev)->driver_data;
-
- /*
- * Since the controller needs to be in touchscreen mode for its thermal
- * sensor to operate properly, and that switching between the two modes
- * needs a delay, always registering in the thermal framework will
- * significantly slow down the conversion rate of the ADCs.
- *
- * Therefore, instead of depending on THERMAL_OF in Kconfig, we only
- * register the sensor if that option is enabled, eventually leaving
- * that choice to the user.
- */
-
- if (IS_ENABLED(CONFIG_THERMAL_OF)) {
- /*
- * This driver is a child of an MFD which has a node in the DT
- * but not its children, because of DT backward compatibility
- * for A10, A13 and A31 SoCs. Therefore, the resulting devices
- * of this driver do not have an of_node variable.
- * However, its parent (the MFD driver) has an of_node variable
- * and since devm_thermal_zone_of_sensor_register uses its first
- * argument to match the phandle defined in the node of the
- * thermal driver with the of_node of the device passed as first
- * argument and the third argument to call ops from
- * thermal_zone_of_device_ops, the solution is to use the parent
- * device as first argument to match the phandle with its
- * of_node, and the device from this driver as third argument to
- * return the temperature.
- */
- info->sensor_device = pdev->dev.parent;
- } else {
- indio_dev->num_channels =
- ARRAY_SIZE(sun4i_gpadc_channels_no_temp);
- indio_dev->channels = sun4i_gpadc_channels_no_temp;
- }
-
- if (IS_ENABLED(CONFIG_THERMAL_OF)) {
- ret = sun4i_irq_init(pdev, "TEMP_DATA_PENDING",
- sun4i_gpadc_temp_data_irq_handler,
- "temp_data", &info->temp_data_irq,
- &info->ignore_temp_data_irq);
- if (ret < 0)
- return ret;
- }
-
- ret = sun4i_irq_init(pdev, "FIFO_DATA_PENDING",
- sun4i_gpadc_fifo_data_irq_handler, "fifo_data",
- &info->fifo_data_irq, &info->ignore_fifo_data_irq);
- if (ret < 0)
- return ret;
-
- if (IS_ENABLED(CONFIG_THERMAL_OF)) {
- ret = iio_map_array_register(indio_dev, sun4i_gpadc_hwmon_maps);
- if (ret < 0) {
- dev_err(&pdev->dev,
- "failed to register iio map array\n");
- return ret;
- }
- }
-
- return 0;
-}
-
static int sun4i_gpadc_probe(struct platform_device *pdev)
{
struct sun4i_gpadc_iio *info;
--
2.11.0