diff options
| author | Quentin Schulz <quentin.schulz@free-electrons.com> | 2018-01-15 11:33:37 +0100 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2018-01-30 18:33:24 +0000 |
| commit | 359163d786e2b05f3e3bd2db7f1629d7150d6dd2 (patch) | |
| tree | 80f9fa231280054be792dd53c030915132051860 /drivers/iio/adc/axp20x_adc.c | |
| parent | 22042a6e694db118cdb27e8a9ead21df046458df (diff) | |
iio: adc: axp20x_adc: make it possible to probe from DT
To prepare for a future patch that will add a DT node for the ADC, make
axp20x_adc able to probe from DT and get the per-variant data from
of_device_id.data since platform_device_id.driver_data won't be set when
probing by DT.
Leave the ability to probe via platform for driver compatibility with
old DTs.
Signed-off-by: Quentin Schulz <quentin.schulz@free-electrons.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Diffstat (limited to 'drivers/iio/adc/axp20x_adc.c')
| -rw-r--r-- | drivers/iio/adc/axp20x_adc.c | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/drivers/iio/adc/axp20x_adc.c b/drivers/iio/adc/axp20x_adc.c index 3fc1b06ae6b8..39680539a701 100644 --- a/drivers/iio/adc/axp20x_adc.c +++ b/drivers/iio/adc/axp20x_adc.c @@ -515,6 +515,13 @@ static const struct axp_data axp22x_data = { .maps = axp22x_maps, }; +static const struct of_device_id axp20x_adc_of_match[] = { + { .compatible = "x-powers,axp209-adc", .data = (void *)&axp20x_data, }, + { .compatible = "x-powers,axp221-adc", .data = (void *)&axp22x_data, }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, axp20x_adc_of_match); + static const struct platform_device_id axp20x_adc_id_match[] = { { .name = "axp20x-adc", .driver_data = (kernel_ulong_t)&axp20x_data, }, { .name = "axp22x-adc", .driver_data = (kernel_ulong_t)&axp22x_data, }, @@ -543,7 +550,16 @@ static int axp20x_probe(struct platform_device *pdev) indio_dev->dev.of_node = pdev->dev.of_node; indio_dev->modes = INDIO_DIRECT_MODE; - info->data = (struct axp_data *)platform_get_device_id(pdev)->driver_data; + if (!pdev->dev.of_node) { + const struct platform_device_id *id; + + id = platform_get_device_id(pdev); + info->data = (struct axp_data *)id->driver_data; + } else { + struct device *dev = &pdev->dev; + + info->data = (struct axp_data *)of_device_get_match_data(dev); + } indio_dev->name = platform_get_device_id(pdev)->name; indio_dev->info = info->data->iio_info; @@ -606,6 +622,7 @@ static int axp20x_remove(struct platform_device *pdev) static struct platform_driver axp20x_adc_driver = { .driver = { .name = "axp20x-adc", + .of_match_table = of_match_ptr(axp20x_adc_of_match), }, .id_table = axp20x_adc_id_match, .probe = axp20x_probe, |