netdev - Re: [PATCH v3 00/19] ARM: imx: make Ethernet refclock configurable

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Message-ID: <Y9kO1rGH5hDWky//@linaro.org>
Date:   Tue, 31 Jan 2023 14:51:34 +0200
From:   Abel Vesa <abel.vesa@...aro.org>
To:     Oleksij Rempel <o.rempel@...gutronix.de>
Cc:     Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Abel Vesa <abelvesa@...nel.org>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Richard Cochran <richardcochran@...il.com>,
        kernel@...gutronix.de, Fabio Estevam <festevam@...il.com>,
        NXP Linux Team <linux-imx@....com>,
        Russell King <linux@...linux.org.uk>,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-clk@...r.kernel.org, netdev@...r.kernel.org
Subject: Re: [PATCH v3 00/19] ARM: imx: make Ethernet refclock configurable

On 23-01-31 09:46:23, Oleksij Rempel wrote:
> changes v3:
> - add Reviewed-by: Abel Vesa <abel.vesa@...aro.org>
> - rebase on top of abelvesa/for-next

Applied all clk/imx ones. Thanks!

> 
> changes v2:
> - remove "ARM: imx6q: use of_clk_get_by_name() instead of_clk_get() to
>   get ptp clock" patch
> - fix build warnings
> - add "Acked-by: Lee Jones <lee@...nel.org>"
> - reword some commits as suggested by Fabio
> 
> Most of i.MX SoC variants have configurable FEC/Ethernet reference
> lock
> used by RMII specification. This functionality is located in the
> general purpose registers (GRPx) and till now was not implemented as
> part of SoC clock tree.
> 
> With this patch set, we move forward and add this missing functionality
> to some of i.MX clk drivers. So, we will be able to configure clock
> opology
> by using devicetree and be able to troubleshoot clock dependencies
> by using clk_summary etc.
> 
> Currently implemented and tested i.MX6Q, i.MX6DL and i.MX6UL variants.
> 
> 
> Oleksij Rempel (19):
>   clk: imx: add clk-gpr-mux driver
>   clk: imx6q: add ethernet refclock mux support
>   ARM: imx6q: skip ethernet refclock reconfiguration if enet_clk_ref is
>     present
>   ARM: dts: imx6qdl: use enet_clk_ref instead of enet_out for the FEC
>     node
>   ARM: dts: imx6dl-lanmcu: configure ethernet reference clock parent
>   ARM: dts: imx6dl-alti6p: configure ethernet reference clock parent
>   ARM: dts: imx6dl-plybas: configure ethernet reference clock parent
>   ARM: dts: imx6dl-plym2m: configure ethernet reference clock parent
>   ARM: dts: imx6dl-prtmvt: configure ethernet reference clock parent
>   ARM: dts: imx6dl-victgo: configure ethernet reference clock parent
>   ARM: dts: imx6q-prtwd2: configure ethernet reference clock parent
>   ARM: dts: imx6qdl-skov-cpu: configure ethernet reference clock parent
>   ARM: dts: imx6dl-eckelmann-ci4x10: configure ethernet reference clock
>     parent
>   clk: imx: add imx_obtain_fixed_of_clock()
>   clk: imx6ul: fix enet1 gate configuration
>   clk: imx6ul: add ethernet refclock mux support
>   ARM: dts: imx6ul: set enet_clk_ref to CLK_ENETx_REF_SEL
>   ARM: mach-imx: imx6ul: remove not optional ethernet refclock overwrite
>   ARM: dts: imx6ul-prti6g: configure ethernet reference clock parent
> 
>  arch/arm/boot/dts/imx6dl-alti6p.dts           |  12 +-
>  arch/arm/boot/dts/imx6dl-eckelmann-ci4x10.dts |  13 +-
>  arch/arm/boot/dts/imx6dl-lanmcu.dts           |  12 +-
>  arch/arm/boot/dts/imx6dl-plybas.dts           |  12 +-
>  arch/arm/boot/dts/imx6dl-plym2m.dts           |  12 +-
>  arch/arm/boot/dts/imx6dl-prtmvt.dts           |  11 +-
>  arch/arm/boot/dts/imx6dl-victgo.dts           |  12 +-
>  arch/arm/boot/dts/imx6q-prtwd2.dts            |  17 ++-
>  arch/arm/boot/dts/imx6qdl-skov-cpu.dtsi       |  12 +-
>  arch/arm/boot/dts/imx6qdl.dtsi                |   4 +-
>  arch/arm/boot/dts/imx6ul-prti6g.dts           |  14 ++-
>  arch/arm/boot/dts/imx6ul.dtsi                 |  10 +-
>  arch/arm/mach-imx/mach-imx6q.c                |  10 +-
>  arch/arm/mach-imx/mach-imx6ul.c               |  20 ---
>  drivers/clk/imx/Makefile                      |   1 +
>  drivers/clk/imx/clk-gpr-mux.c                 | 119 ++++++++++++++++++
>  drivers/clk/imx/clk-imx6q.c                   |  13 ++
>  drivers/clk/imx/clk-imx6ul.c                  |  33 ++++-
>  drivers/clk/imx/clk.c                         |  14 +++
>  drivers/clk/imx/clk.h                         |   8 ++
>  include/dt-bindings/clock/imx6qdl-clock.h     |   4 +-
>  include/dt-bindings/clock/imx6ul-clock.h      |   7 +-
>  include/linux/mfd/syscon/imx6q-iomuxc-gpr.h   |   6 +-
>  23 files changed, 296 insertions(+), 80 deletions(-)
>  create mode 100644 drivers/clk/imx/clk-gpr-mux.c
> 
> -- 
> 2.30.2
>