Re: [PATCH] dt-bindings: iio: accel: Convert lis302 binding to YAML schema

[Jonathan Cameron]

On Wed, 10 Jun 2026 14:23:38 -0500
Rob Herring <robh@xxxxxxxxxx> wrote:

> On Wed, Jun 10, 2026 at 04:56:40PM +0100, Jonathan Cameron wrote:
> > On Wed, 10 Jun 2026 14:00:51 +0300
> > Md Shofiqul Islam <shofiqtest@xxxxxxxxx> wrote:
> >   
> > > Convert the STMicroelectronics LIS302DL/LIS3LV02D accelerometer device
> > > tree binding from plain text format to YAML schema format.
> > > 
> > > The binding covers two variants matched via their respective bus drivers:
> > > - SPI: st,lis302dl-spi (drivers/misc/lis3lv02d/lis3lv02d_spi.c)
> > > - I2C: st,lis3lv02d   (drivers/misc/lis3lv02d/lis3lv02d_i2c.c)
> > > 
> > > Document all vendor-specific properties read by the driver via
> > > of_property_read_*(), including click detection, IRQ routing, free-fall/
> > > wake-up engines, high-pass filtering, axis remapping, output data rate,
> > > and self-test limits.
> > > 
> > > Also correct the click threshold property names: the driver reads
> > > "st,click-threshold-{x,y,z}" but the old .txt documented them as
> > > "st,click-thresh-{x,y,z}".
> > > 
> > > Validated with: make dt_binding_check   DT_SCHEMA_FILES=Documentation/devicetree/bindings/iio/accel/st,lis302dl.yaml
> > > 
> > > Signed-off-by: Md Shofiqul Islam <shofiqtest@xxxxxxxxx>  
> > 
> > Hi.
> > 
> > So the conundrum here is whether we want to keep carrying this binding
> > as it dates to a previous era.
> > 
> > The driver never made it to IIO and is still in drivers/misc.
> > The majority of what is the text document should never have been
> > in DT in the first place. I'll guess this dates all the way back
> > to the wild west days before we had regular binding review.  
> 
> Where the driver is doesn't matter for the binding. Unless the 1 
> apparent user is will to change things, we should just document what is 
> in use (and nothing more). Some of this looks like it can be droppped.

I don't mind documenting it, but with a big warning at the top to make
sure no one copies it for a newer part! 

Jonathan

> 
> Rob