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path: root/drivers/iio/adc/ab8500-gpadc.c
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Diffstat (limited to 'drivers/iio/adc/ab8500-gpadc.c')
-rw-r--r--drivers/iio/adc/ab8500-gpadc.c64
1 files changed, 22 insertions, 42 deletions
diff --git a/drivers/iio/adc/ab8500-gpadc.c b/drivers/iio/adc/ab8500-gpadc.c
index 7b5212ba5501..8eaa1dd6a89b 100644
--- a/drivers/iio/adc/ab8500-gpadc.c
+++ b/drivers/iio/adc/ab8500-gpadc.c
@@ -607,7 +607,6 @@ static int ab8500_gpadc_read(struct ab8500_gpadc *gpadc,
}
/* This eventually drops the regulator */
- pm_runtime_mark_last_busy(gpadc->dev);
pm_runtime_put_autosuspend(gpadc->dev);
return (high_data << 8) | low_data;
@@ -925,8 +924,8 @@ static int ab8500_gpadc_read_raw(struct iio_dev *indio_dev,
return -EINVAL;
}
-static int ab8500_gpadc_of_xlate(struct iio_dev *indio_dev,
- const struct of_phandle_args *iiospec)
+static int ab8500_gpadc_fwnode_xlate(struct iio_dev *indio_dev,
+ const struct fwnode_reference_args *iiospec)
{
int i;
@@ -938,11 +937,10 @@ static int ab8500_gpadc_of_xlate(struct iio_dev *indio_dev,
}
static const struct iio_info ab8500_gpadc_info = {
- .of_xlate = ab8500_gpadc_of_xlate,
+ .fwnode_xlate = ab8500_gpadc_fwnode_xlate,
.read_raw = ab8500_gpadc_read_raw,
};
-#ifdef CONFIG_PM
static int ab8500_gpadc_runtime_suspend(struct device *dev)
{
struct iio_dev *indio_dev = dev_get_drvdata(dev);
@@ -965,12 +963,11 @@ static int ab8500_gpadc_runtime_resume(struct device *dev)
return ret;
}
-#endif
/**
* ab8500_gpadc_parse_channel() - process devicetree channel configuration
* @dev: pointer to containing device
- * @np: device tree node for the channel to configure
+ * @fwnode: fw node for the channel to configure
* @ch: channel info to fill in
* @iio_chan: IIO channel specification to fill in
*
@@ -978,15 +975,15 @@ static int ab8500_gpadc_runtime_resume(struct device *dev)
* and define usage for things like AUX GPADC inputs more precisely.
*/
static int ab8500_gpadc_parse_channel(struct device *dev,
- struct device_node *np,
+ struct fwnode_handle *fwnode,
struct ab8500_gpadc_chan_info *ch,
struct iio_chan_spec *iio_chan)
{
- const char *name = np->name;
+ const char *name = fwnode_get_name(fwnode);
u32 chan;
int ret;
- ret = of_property_read_u32(np, "reg", &chan);
+ ret = fwnode_property_read_u32(fwnode, "reg", &chan);
if (ret) {
dev_err(dev, "invalid channel number %s\n", name);
return ret;
@@ -1023,22 +1020,19 @@ static int ab8500_gpadc_parse_channel(struct device *dev,
/**
* ab8500_gpadc_parse_channels() - Parse the GPADC channels from DT
* @gpadc: the GPADC to configure the channels for
- * @np: device tree node containing the channel configurations
- * @chans: the IIO channels we parsed
- * @nchans: the number of IIO channels we parsed
+ * @chans_parsed: the IIO channels we parsed
+ * @nchans_parsed: the number of IIO channels we parsed
*/
static int ab8500_gpadc_parse_channels(struct ab8500_gpadc *gpadc,
- struct device_node *np,
struct iio_chan_spec **chans_parsed,
unsigned int *nchans_parsed)
{
- struct device_node *child;
struct ab8500_gpadc_chan_info *ch;
struct iio_chan_spec *iio_chans;
unsigned int nchans;
int i;
- nchans = of_get_available_child_count(np);
+ nchans = device_get_child_node_count(gpadc->dev);
if (!nchans) {
dev_err(gpadc->dev, "no channel children\n");
return -ENODEV;
@@ -1056,7 +1050,7 @@ static int ab8500_gpadc_parse_channels(struct ab8500_gpadc *gpadc,
return -ENOMEM;
i = 0;
- for_each_available_child_of_node(np, child) {
+ device_for_each_child_node_scoped(gpadc->dev, child) {
struct iio_chan_spec *iio_chan;
int ret;
@@ -1066,7 +1060,6 @@ static int ab8500_gpadc_parse_channels(struct ab8500_gpadc *gpadc,
ret = ab8500_gpadc_parse_channel(gpadc->dev, child, ch,
iio_chan);
if (ret) {
- of_node_put(child);
return ret;
}
i++;
@@ -1083,7 +1076,6 @@ static int ab8500_gpadc_probe(struct platform_device *pdev)
struct ab8500_gpadc *gpadc;
struct iio_dev *indio_dev;
struct device *dev = &pdev->dev;
- struct device_node *np = pdev->dev.of_node;
struct iio_chan_spec *iio_chans;
unsigned int n_iio_chans;
int ret;
@@ -1098,22 +1090,18 @@ static int ab8500_gpadc_probe(struct platform_device *pdev)
gpadc->dev = dev;
gpadc->ab8500 = dev_get_drvdata(dev->parent);
- ret = ab8500_gpadc_parse_channels(gpadc, np, &iio_chans, &n_iio_chans);
+ ret = ab8500_gpadc_parse_channels(gpadc, &iio_chans, &n_iio_chans);
if (ret)
return ret;
gpadc->irq_sw = platform_get_irq_byname(pdev, "SW_CONV_END");
- if (gpadc->irq_sw < 0) {
- dev_err(dev, "failed to get platform sw_conv_end irq\n");
+ if (gpadc->irq_sw < 0)
return gpadc->irq_sw;
- }
if (is_ab8500(gpadc->ab8500)) {
gpadc->irq_hw = platform_get_irq_byname(pdev, "HW_CONV_END");
- if (gpadc->irq_hw < 0) {
- dev_err(dev, "failed to get platform hw_conv_end irq\n");
+ if (gpadc->irq_hw < 0)
return gpadc->irq_hw;
- }
} else {
gpadc->irq_hw = 0;
}
@@ -1146,11 +1134,9 @@ static int ab8500_gpadc_probe(struct platform_device *pdev)
/* The VTVout LDO used to power the AB8500 GPADC */
gpadc->vddadc = devm_regulator_get(dev, "vddadc");
- if (IS_ERR(gpadc->vddadc)) {
- ret = PTR_ERR(gpadc->vddadc);
- dev_err(dev, "failed to get vddadc\n");
- return ret;
- }
+ if (IS_ERR(gpadc->vddadc))
+ return dev_err_probe(dev, PTR_ERR(gpadc->vddadc),
+ "failed to get vddadc\n");
ret = regulator_enable(gpadc->vddadc);
if (ret) {
@@ -1190,7 +1176,7 @@ out_dis_pm:
return ret;
}
-static int ab8500_gpadc_remove(struct platform_device *pdev)
+static void ab8500_gpadc_remove(struct platform_device *pdev)
{
struct iio_dev *indio_dev = platform_get_drvdata(pdev);
struct ab8500_gpadc *gpadc = iio_priv(indio_dev);
@@ -1199,24 +1185,18 @@ static int ab8500_gpadc_remove(struct platform_device *pdev)
pm_runtime_put_noidle(gpadc->dev);
pm_runtime_disable(gpadc->dev);
regulator_disable(gpadc->vddadc);
-
- return 0;
}
-static const struct dev_pm_ops ab8500_gpadc_pm_ops = {
- SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
- pm_runtime_force_resume)
- SET_RUNTIME_PM_OPS(ab8500_gpadc_runtime_suspend,
- ab8500_gpadc_runtime_resume,
- NULL)
-};
+static DEFINE_RUNTIME_DEV_PM_OPS(ab8500_gpadc_pm_ops,
+ ab8500_gpadc_runtime_suspend,
+ ab8500_gpadc_runtime_resume, NULL);
static struct platform_driver ab8500_gpadc_driver = {
.probe = ab8500_gpadc_probe,
.remove = ab8500_gpadc_remove,
.driver = {
.name = "ab8500-gpadc",
- .pm = &ab8500_gpadc_pm_ops,
+ .pm = pm_ptr(&ab8500_gpadc_pm_ops),
},
};
builtin_platform_driver(ab8500_gpadc_driver);
generated by cgit (git 2.34.1) at 2025-12-25 23:21:25 +0000