[PATCH 1/1] phy: freescale: phy-fsl-imx8-mipi-dphy: Fix alias name to use dashes

Vladimir Oltean olteanv at gmail.com
Tue Dec 19 03:59:17 PST 2023


On Tue, Dec 19, 2023 at 10:13:03AM +0100, Alexander Stein wrote:
> Hi Andrew,
> 
> Am Dienstag, 19. Dezember 2023, 10:09:24 CET schrieb Andrew Lunn:
> > On Tue, Dec 19, 2023 at 10:02:48AM +0100, Alexander Stein wrote:
> > > Devicetree spec lists only dashes as valid characters for alias names.
> > > Table 3.2: Valid characters for alias names, Devicee Specification,
> > > Release v0.4
> > > 
> > > Signed-off-by: Alexander Stein <alexander.stein at ew.tq-group.com>
> > > ---
> > > 
> > >  drivers/phy/freescale/phy-fsl-imx8-mipi-dphy.c | 2 +-
> > >  1 file changed, 1 insertion(+), 1 deletion(-)
> > > 
> > > diff --git a/drivers/phy/freescale/phy-fsl-imx8-mipi-dphy.c
> > > b/drivers/phy/freescale/phy-fsl-imx8-mipi-dphy.c index
> > > e625b32889bf..0928a526e2ab 100644
> > > --- a/drivers/phy/freescale/phy-fsl-imx8-mipi-dphy.c
> > > +++ b/drivers/phy/freescale/phy-fsl-imx8-mipi-dphy.c
> > > @@ -706,7 +706,7 @@ static int mixel_dphy_probe(struct platform_device
> > > *pdev)> 
> > >  			return ret;
> > >  		
> > >  		}
> > > 
> > > -		priv->id = of_alias_get_id(np, "mipi_dphy");
> > > +		priv->id = of_alias_get_id(np, "mipi-dphy");
> > 
> > Are there any in tree DT blobs using mipi_dphy which are going to
> > break because of this change?
> 
> You are right, I should have mentioned that already.
> The alias is only used when used on a combo-PHY, which is only i.MX8QXP. Up 
> until now there is no DT node in-kernel which uses the fsl,imx8qxp-mipi-dphy 
> compatible. So no there should be no blobs at all using the old alias name.
> 
> Best regards,
> Alexander

This seems correct. The NXP kernels have this revert commit which
reinforces the fact that this driver does not probe on the
"fsl,imx8qxp-mipi-dphy" compatible string even downstream.
https://github.com/nxp-imx/linux-imx/commit/daf4e70d081a2672ac4a22ff39f6712798a0cc3b
Adding Liu Ying.



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