linux-kernel - Re: [PATCH V3] arm64: dts: sprd: Add support for Unisoc's UMS512

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Date:   Mon, 6 Mar 2023 15:07:31 +0800
From:   Chunyan Zhang <zhang.lyra@...il.com>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Cc:     Chunyan Zhang <chunyan.zhang@...soc.com>,
        Arnd Bergmann <arnd@...db.de>, Olof Johansson <olof@...om.net>,
        soc@...nel.org, Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        devicetree@...r.kernel.org,
        Baolin Wang <baolin.wang@...ux.alibaba.com>,
        Orson Zhai <orsonzhai@...il.com>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH V3] arm64: dts: sprd: Add support for Unisoc's UMS512

On Mon, 6 Mar 2023 at 14:43, Krzysztof Kozlowski
<krzysztof.kozlowski@...aro.org> wrote:
>
> On 06/03/2023 07:04, Chunyan Zhang wrote:
> > Add basic support for Unisoc's UMS512, with this patch,
> > the board ums512-1h10 can run into console.
> >
> > Signed-off-by: Chunyan Zhang <chunyan.zhang@...soc.com>
> > ---
> > Changes since V2:
> > * Removed redundant gpio.h from ums512-1h10.dts
> >
> > Changes since v1:
> > * Addressed comments:
> >   - Removed earlycon bootargs;
> >   - Moved up gic reg as second property;
> >   - Moved two sdio nodes under to the apb bus node;
> >   - Renamed node name of all fixed clocks;
> >   - Fixed warnings reported by dtbs_check.
>
> Please always mention  under --- why you do not send a binding for new
> board compatible.

Ok, I will address.

>
> > ---
> >  arch/arm64/boot/dts/sprd/Makefile        |   3 +-
> >  arch/arm64/boot/dts/sprd/ums512-1h10.dts |  61 ++
> >  arch/arm64/boot/dts/sprd/ums512.dtsi     | 911 +++++++++++++++++++++++
> >  3 files changed, 974 insertions(+), 1 deletion(-)
> >  create mode 100644 arch/arm64/boot/dts/sprd/ums512-1h10.dts
> >  create mode 100644 arch/arm64/boot/dts/sprd/ums512.dtsi
> >
>
> (...)
>                 };
> > +
> > +             apb@...00000 {
> > +                     compatible = "simple-bus";
> > +                     #address-cells = <1>;
> > +                     #size-cells = <1>;
> > +                     ranges = <0 0x0 0x70000000 0x10000000>;
> > +
> > +                     uart0: serial@0 {
> > +                             compatible = "sprd,ums512-uart",
> > +                                          "sprd,sc9836-uart";
> > +                             reg = <0x0 0x100>;
> > +                             interrupts = <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>;
> > +                             clocks = <&ext_26m>;
> > +                             status = "disabled";
> > +                     };
> > +
> > +                     uart1: serial@...000 {
> > +                             compatible = "sprd,ums512-uart",
> > +                                          "sprd,sc9836-uart";
> > +                             reg = <0x100000 0x100>;
> > +                             interrupts = <GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>;
> > +                             clocks = <&ext_26m>;
> > +                             status = "disabled";
> > +                     };
> > +
> > +                     sdio0: sdio@...0000 {
>
> Isn't the node name required to be "mmc"?

Yes, I agree.

>
> > +                             compatible = "sprd,sdhci-r11";
> > +                             reg = <0x1100000 0x1000>;
> > +                             interrupts = <GIC_SPI 19 IRQ_TYPE_LEVEL_HIGH>;
> > +                             clock-names = "sdio", "enable";
> > +                             clocks = <&ap_clk CLK_SDIO0_2X>,
> > +                                      <&apapb_gate CLK_SDIO0_EB>;
> > +                             assigned-clocks = <&ap_clk CLK_SDIO0_2X>;
> > +                             assigned-clock-parents = <&pll1 CLK_RPLL>;
> > +                             status = "disabled";
> > +                     };
> > +
> > +                     sdio3: sdio@...0000 {
>
> Same problem.

Thanks for the review,
Chunyan