Re: [net-next PATCH v9 5/5] net: phy: at803x: add LED support for qca808x

[Andrew Lunn <andrew@lunn.ch>]

On Fri, Jan 05, 2024 at 03:27:17PM +0100, Christian Marangi wrote:
> Add LED support for QCA8081 PHY.
> 
> Documentation for this LEDs PHY is very scarce even with NDA access
> to Documentation for OEMs. Only the blink pattern are documented and are
> very confusing most of the time. No documentation is present about
> forcing the LED on/off or to always blink.
> 
> Those settings were reversed by poking the regs and trying to find the
> correct bits to trigger these modes. Some bits mode are not clear and
> maybe the documentation option are not 100% correct. For the sake of LED
> support the reversed option are enough to add support for current LED
> APIs.
> 
> Supported HW control modes are:
> - tx
> - rx
> - link10
> - link100
> - link1000
> - half_duplex
> - full_duplex
> 
> Also add support for LED polarity set to set LED polarity to active
> high or low. QSDK sets this value to high by default but PHY reset value
> doesn't have this enabled by default.
> 
> QSDK also sets 2 additional bits but their usage is not clear, info about
> this is added in the header. It was verified that for correct function
> of the LED if active high is needed, only BIT 6 is needed.
> 
> Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>

Reviewed-by: Andrew Lunn <andrew@lunn.ch>

    Andrew