[PATCH 2/5] ARM: dts: imx6sx: Fix SSI nodes
Markus Pargmann
mpa at pengutronix.de
Tue Jul 1 00:49:28 PDT 2014
On Tue, Jul 01, 2014 at 09:45:11AM +0200, Markus Pargmann wrote:
> Hi Fabio,
>
> On Tue, Jul 01, 2014 at 02:55:26AM -0300, Fabio Estevam wrote:
> > From: Fabio Estevam <fabio.estevam at freescale.com>
> >
> > The fsl_ssi driver only needs one clock to work, so only pass the required
> > SSI clock as done in the other mx6 dtsi files.
>
> Actually I would prefer to have the clock defined in the .dtsi files.
> The fsl-ssi driver only enables the baud clock if the SSI unit is the
> clock master. So in all other cases the clock is not enabled and keeps
> disabled.
>
> Also the clock is SSI specific, you don't have a choice which clock to
> use, there is no board dependency on this clock. So I think we should
> fix the other imx6 dtsi files instead.
>
> >
> > Also pass the fsl,fifo-depth property.
> >
> > Signed-off-by: Fabio Estevam <fabio.estevam at freescale.com>
> > ---
> > arch/arm/boot/dts/imx6sx.dtsi | 15 ++++++---------
> > 1 file changed, 6 insertions(+), 9 deletions(-)
> >
> > diff --git a/arch/arm/boot/dts/imx6sx.dtsi b/arch/arm/boot/dts/imx6sx.dtsi
> > index 2929078..ef3cea2 100644
> > --- a/arch/arm/boot/dts/imx6sx.dtsi
> > +++ b/arch/arm/boot/dts/imx6sx.dtsi
> > @@ -301,11 +301,10 @@
> > compatible = "fsl,imx6sx-ssi", "fsl,imx21-ssi";
> > reg = <0x02028000 0x4000>;
> > interrupts = <GIC_SPI 46 IRQ_TYPE_LEVEL_HIGH>;
> > - clocks = <&clks IMX6SX_CLK_SSI1_IPG>,
> > - <&clks IMX6SX_CLK_SSI1>;
> > - clock-names = "ipg", "baud";
> > + clocks = <&clks IMX6SX_CLK_SSI1>;
>
> It seems you are removing the wrong clock here. 'ipg' is necessary,
> 'baud' is only used for master mode.
Oh a later patch explains the removal of the 'wrong' clock. So just
ignore this part.
Regards,
Markus
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