linux-kernel - Re: [PATCH 4/5] staging: mt7621-dts: add dt nodes for mt7621-pll

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Message-ID: <CAJsYDVJ-qJppkuvbYLmkWU0SBE=UrOoNLrM0kcOzhSTqNTeaWQ@mail.gmail.com>
Date:   Wed, 10 Jul 2019 14:46:18 +0800
From:   Chuanhong Guo <gch981213@...il.com>
To:     "open list:COMMON CLK FRAMEWORK" <linux-clk@...r.kernel.org>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        open list <linux-kernel@...r.kernel.org>,
        "open list:MIPS" <linux-mips@...r.kernel.org>,
        "open list:STAGING SUBSYSTEM" <devel@...verdev.osuosl.org>
Cc:     Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Ralf Baechle <ralf@...ux-mips.org>,
        Paul Burton <paul.burton@...s.com>,
        James Hogan <jhogan@...nel.org>,
        John Crispin <john@...ozen.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Weijie Gao <hackpascal@...il.com>, NeilBrown <neil@...wn.name>
Subject: Re: [PATCH 4/5] staging: mt7621-dts: add dt nodes for mt7621-pll

On Wed, Jul 10, 2019 at 2:22 AM Chuanhong Guo <gch981213@...il.com> wrote:
>
> This commit adds device-tree node for mt7621-pll and use its clock
> accordingly.
>
> Signed-off-by: Chuanhong Guo <gch981213@...il.com>

Oops. Please ignore this single patch for now. I forgot to drop
cpuclock node in drivers/staging/mt7621-dts/gbpc1.dts
I'll resend this patch with changes for gbpc1.dts after the other four
patches are applied.

> ---
>  drivers/staging/mt7621-dts/mt7621.dtsi | 15 +++++++--------
>  1 file changed, 7 insertions(+), 8 deletions(-)
>
> diff --git a/drivers/staging/mt7621-dts/mt7621.dtsi b/drivers/staging/mt7621-dts/mt7621.dtsi
> index a4c08110094b..12717f570ceb 100644
> --- a/drivers/staging/mt7621-dts/mt7621.dtsi
> +++ b/drivers/staging/mt7621-dts/mt7621.dtsi
> @@ -1,4 +1,5 @@
>  #include <dt-bindings/interrupt-controller/mips-gic.h>
> +#include <dt-bindings/clock/mt7621-clk.h>
>  #include <dt-bindings/gpio/gpio.h>
>
>  / {
> @@ -27,12 +28,11 @@
>                 serial0 = &uartlite;
>         };
>
> -       cpuclock: cpuclock@0 {
> -               #clock-cells = <0>;
> -               compatible = "fixed-clock";
> +       pll: pll {
> +               compatible = "mediatek,mt7621-pll", "syscon";
>
> -               /* FIXME: there should be way to detect this */
> -               clock-frequency = <880000000>;
> +               #clock-cells = <1>;
> +               clock-output-names = "cpu", "bus";
>         };
>
>         sysclock: sysclock@0 {
> @@ -155,7 +155,6 @@
>                         compatible = "ns16550a";
>                         reg = <0xc00 0x100>;
>
> -                       clocks = <&sysclock>;
>                         clock-frequency = <50000000>;
>
>                         interrupt-parent = <&gic>;
> @@ -172,7 +171,7 @@
>                         compatible = "ralink,mt7621-spi";
>                         reg = <0xb00 0x100>;
>
> -                       clocks = <&sysclock>;
> +                       clocks = <&pll MT7621_CLK_BUS>;
>
>                         resets = <&rstctrl 18>;
>                         reset-names = "spi";
> @@ -372,7 +371,7 @@
>                 timer {
>                         compatible = "mti,gic-timer";
>                         interrupts = <GIC_LOCAL 1 IRQ_TYPE_NONE>;
> -                       clocks = <&cpuclock>;
> +                       clocks = <&pll MT7621_CLK_CPU>;
>                 };
>         };
>
> --
> 2.21.0
>