linux-kernel - Re: [PATCHv3 2/3] ARM: dts: exynos: Add missing usbdrd3 suspend clk

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Date:   Mon, 10 Feb 2020 19:54:58 +0100
From:   Krzysztof Kozlowski <krzk@...nel.org>
To:     Anand Moon <linux.amoon@...il.com>
Cc:     Linux USB Mailing List <linux-usb@...r.kernel.org>,
        devicetree <devicetree@...r.kernel.org>,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Felipe Balbi <balbi@...nel.org>,
        Marek Szyprowski <m.szyprowski@...sung.com>,
        Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
        linux-samsung-soc@...r.kernel.org,
        Linux Kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCHv3 2/3] ARM: dts: exynos: Add missing usbdrd3 suspend clk

On Mon, Feb 10, 2020 at 10:43:45PM +0530, Anand Moon wrote:
> Hi Krzysztof,
> 
> Thanks for your review comments.
> 
> On Mon, 10 Feb 2020 at 19:20, Krzysztof Kozlowski <krzk@...nel.org> wrote:
> >
> > On Mon, Feb 10, 2020 at 10:51:07AM +0000, Anand Moon wrote:
> > > This patch adds new combatible strings for USBDRD3
> > > for adding missing suspend clk, exynos5422 usbdrd3
> > > support two clk USBD300 and SCLK_USBD300, so add missing
> > > suspemd_clk for Exynos542x DWC3 nodes.
> > >
> > > Signed-off-by: Anand Moon <linux.amoon@...il.com>
> > > ---
> > >  arch/arm/boot/dts/exynos5420.dtsi | 8 ++++----
> > >  arch/arm/boot/dts/exynos54xx.dtsi | 4 ++--
> > >  2 files changed, 6 insertions(+), 6 deletions(-)
> > >
> > > diff --git a/arch/arm/boot/dts/exynos5420.dtsi b/arch/arm/boot/dts/exynos5420.dtsi
> > > index b672080e7469..bd505256a223 100644
> > > --- a/arch/arm/boot/dts/exynos5420.dtsi
> > > +++ b/arch/arm/boot/dts/exynos5420.dtsi
> > > @@ -1372,8 +1372,8 @@ &trng {
> > >  };
> > >
> > >  &usbdrd3_0 {
> > > -     clocks = <&clock CLK_USBD300>;
> > > -     clock-names = "usbdrd30";
> > > +     clocks = <&clock CLK_USBD300>, <&clock CLK_SCLK_USBD300>;
> > > +     clock-names = "usbdrd30", "usbdrd30_susp_clk";
> > >  };
> > >
> > >  &usbdrd_phy0 {
> > > @@ -1383,8 +1383,8 @@ &usbdrd_phy0 {
> > >  };
> > >
> > >  &usbdrd3_1 {
> > > -     clocks = <&clock CLK_USBD301>;
> > > -     clock-names = "usbdrd30";
> > > +     clocks = <&clock CLK_USBD301>, <&clock CLK_SCLK_USBD301>;
> > > +     clock-names = "usbdrd30", "usbdrd30_susp_clk";
> > >  };
> > >
> > >  &usbdrd_dwc3_1 {
> > > diff --git a/arch/arm/boot/dts/exynos54xx.dtsi b/arch/arm/boot/dts/exynos54xx.dtsi
> > > index 8aa5117e58ce..0aac6255de5d 100644
> > > --- a/arch/arm/boot/dts/exynos54xx.dtsi
> > > +++ b/arch/arm/boot/dts/exynos54xx.dtsi
> > > @@ -143,7 +143,7 @@ hsi2c_7: i2c@...d0000 {
> > >               };
> > >
> > >               usbdrd3_0: usb3-0 {
> > > -                     compatible = "samsung,exynos5250-dwusb3";
> > > +                     compatible = "samsung,exynos5420-dwusb3";
> > >                       #address-cells = <1>;
> > >                       #size-cells = <1>;
> > >                       ranges;
> > > @@ -165,7 +165,7 @@ usbdrd_phy0: phy@...00000 {
> > >               };
> > >
> > >               usbdrd3_1: usb3-1 {
> > > -                     compatible = "samsung,exynos5250-dwusb3";
> > > +                     compatible = "samsung,exynos5420-dwusb3";
> >
> > This affects also Exynos5410 but you do not add new clock there.
> >
> > Best regards,
> > Krzysztof
> >
> 
> Ok I will update this Exynos5410 dts.
> 
> Is samsung,exynos54xx-dwusb3 is valid compatible string
> for both the SoC.

The compatible should not be wildcard so keep it as
samsung,exynos5420-dwusb3.

Best regards,
Krzysztof