On Thu, 2024-09-05 at 14:19 -0500, David Lechner wrote:
> On 9/5/24 10:17 AM, Angelo Dureghello wrote:
> > From: Angelo Dureghello <adureghello@xxxxxxxxxxxx>
> >
> > Change to obtain the fdt use case as reported in the
> > adi,ad3552r.yaml file in this patchset, with the DAC device that
> > is actually using the backend set as a child node of the backend.
> >
> > To obtain this, registering all the child fdt nodes as platform
> > devices.
> >
> > Signed-off-by: Angelo Dureghello <adureghello@xxxxxxxxxxxx>
> > Co-developed-by: David Lechner <dlechner@xxxxxxxxxxxx>
> > Co-developed-by: Nuno Sá <nuno.sa@xxxxxxxxxx>
> > ---
> > drivers/iio/dac/adi-axi-dac.c | 15 +++++++++++++++
> > 1 file changed, 15 insertions(+)
> >
> > diff --git a/drivers/iio/dac/adi-axi-dac.c b/drivers/iio/dac/adi-axi-dac.c
> > index cc31e1dcd1df..e883cd557b6a 100644
> > --- a/drivers/iio/dac/adi-axi-dac.c
> > +++ b/drivers/iio/dac/adi-axi-dac.c
> > @@ -783,6 +783,7 @@ static int axi_dac_probe(struct platform_device *pdev)
> > {
> > struct axi_dac_state *st;
> > const struct axi_dac_info *info;
> > + struct platform_device *child_pdev;
> > void __iomem *base;
> > unsigned int ver;
> > struct clk *clk;
> > @@ -862,6 +863,20 @@ static int axi_dac_probe(struct platform_device *pdev)
> > return dev_err_probe(&pdev->dev, ret,
> > "failed to register iio backend\n");
> >
> > + device_for_each_child_node_scoped(&pdev->dev, child) {
>
> This should use fwnode_for_each_available_child_node() so that it skips
> nodes with status != "okay".
>
device_for_each_child_node() already only looks at available nodes IIRC
- Nuno Sá
