linux-kernel - Re: [PATCH] ARM: dts: imx6qdl: Specify IMX6QDL_CLK

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Date:   Tue, 26 Mar 2019 19:52:02 -0700
From:   Andrey Smirnov <andrew.smirnov@...il.com>
To:     Fabio Estevam <festevam@...il.com>
Cc:     Shawn Guo <shawnguo@...nel.org>, Angus Ainslie <angus@...ea.ca>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        Chris Healy <cphealy@...il.com>,
        Fabio Estevam <fabio.estevam@....com>,
        "moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE" 
        <linux-arm-kernel@...ts.infradead.org>,
        Lucas Stach <l.stach@...gutronix.de>
Subject: Re: [PATCH] ARM: dts: imx6qdl: Specify IMX6QDL_CLK_IPG as "ipg" clock
 for SDMA

On Mon, Mar 25, 2019 at 3:49 AM Fabio Estevam <festevam@...il.com> wrote:
>
> Hi Andrey,
>
> On Mon, Mar 25, 2019 at 2:01 AM Andrey Smirnov <andrew.smirnov@...il.com> wrote:
>
> > diff --git a/arch/arm/boot/dts/imx6qdl.dtsi b/arch/arm/boot/dts/imx6qdl.dtsi
> > index 9f9aa6e7ed0e..354feba077b2 100644
> > --- a/arch/arm/boot/dts/imx6qdl.dtsi
> > +++ b/arch/arm/boot/dts/imx6qdl.dtsi
> > @@ -949,7 +949,7 @@
> >                                 compatible = "fsl,imx6q-sdma", "fsl,imx35-sdma";
> >                                 reg = <0x020ec000 0x4000>;
> >                                 interrupts = <0 2 IRQ_TYPE_LEVEL_HIGH>;
> > -                               clocks = <&clks IMX6QDL_CLK_SDMA>,
> > +                               clocks = <&clks IMX6QDL_CLK_IPG>,
>
> This problem affects other i.MX SoCs, such as i,MX6SX as originally
> reported here:
> https://patchwork.kernel.org/patch/10864867/
>
> So I think we need either a  dtsi fix for the other i.MX SoCs or maybe
> a fix in the SDMA driver?

I think it is worth fixing in DT, regardless if we do anything about
SDMA driver or not. I'll add fixes for 6SX and 7D in v2.

Thanks,
Andrey Smirnov