From: Nishanth Menon <nm@ti.com>
To: Kishon Vijay Abraham I <kishon@ti.com>
Cc: Tero Kristo <kristo@kernel.org>, Rob Herring <robh+dt@kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
<devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
Lokesh Vutla <lokeshvutla@ti.com>
Subject: Re: [PATCH 1/4] arm64: dts: ti: k3-j721e-main: Fix external refclk input to SERDES
Date: Thu, 13 May 2021 09:01:37 -0500 [thread overview]
Message-ID: <20210513140137.5uvftgtsku3xfobz@engraving> (raw)
In-Reply-To: <68c95cf1-84fa-2194-7bb1-e3c60e7f1fc0@ti.com>
On 17:41-20210513, Kishon Vijay Abraham I wrote:
> Hi Nishanth,
>
> On 13/05/21 12:21 am, Nishanth Menon wrote:
> > On 20:42-20210512, Kishon Vijay Abraham I wrote:
> >> Rename the external refclk inputs to the SERDES from
> >> dummy_cmn_refclk/dummy_cmn_refclk1 to cmn_refclk/cmn_refclk1
> >> respectively. Also move the external refclk DT nodes outside the
> >> cbass_main DT node. Since in j721e common processor board, only the
> >> cmn_refclk1 is connected to 100MHz clock, fix the clock frequency.
> >>
> >> Fixes: afd094ebe69f ("arm64: dts: ti: k3-j721e-main: Add WIZ and SERDES PHY nodes")
> >
> > Assume we want this part of 5.13 fixes?
>
> This doesn't fix any functionality. Okay for me to go in 5.14 along with
> the rest of the series.
> >
> >> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
> >> ---
> >> .../dts/ti/k3-j721e-common-proc-board.dts | 4 ++
> >> arch/arm64/boot/dts/ti/k3-j721e-main.dtsi | 58 ++++++++++---------
> >> 2 files changed, 34 insertions(+), 28 deletions(-)
> >>
> >> diff --git a/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts b/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts
> >> index 60764366e22b..86f7ab511ee8 100644
> >> --- a/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts
> >> +++ b/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts
> >> @@ -635,6 +635,10 @@
> >> status = "disabled";
> >> };
> >>
> >> +&cmn_refclk1 {
> >> + clock-frequency = <100000000>;
> >> +};
> >> +
> >> &serdes0 {
> >> serdes0_pcie_link: link@0 {
> >> reg = <0>;
> >> diff --git a/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi b/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi
> >> index c2aa45a3ac79..002a0c1520ee 100644
> >> --- a/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi
> >> +++ b/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi
> >> @@ -8,6 +8,20 @@
> >> #include <dt-bindings/mux/mux.h>
> >> #include <dt-bindings/mux/ti-serdes.h>
> >>
> >> +/ {
> >> + cmn_refclk: cmn-refclk {
> >> + #clock-cells = <0>;
> >> + compatible = "fixed-clock";
> >> + clock-frequency = <0>;
> >> + };
> >> +
> >> + cmn_refclk1: cmn-refclk1 {
> >
> > Just curious: why cant we use the standard nodenames with clock?
>
> We can use standard names here. Is there any defined nodename for
> clocks? clk or clock? Don't see $nodename defined for clocks in
> dt-schema repository.
Looking at the fixed-clock example, lets go with clock
--
Regards,
Nishanth Menon
Key (0xDDB5849D1736249D) / Fingerprint: F8A2 8693 54EB 8232 17A3 1A34 DDB5 849D 1736 249D
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next prev parent reply other threads:[~2021-05-13 14:04 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-12 15:12 [PATCH 0/4] J721E: Use external clock in EVM for SERDES Kishon Vijay Abraham I
2021-05-12 15:12 ` [PATCH 1/4] arm64: dts: ti: k3-j721e-main: Fix external refclk input to SERDES Kishon Vijay Abraham I
2021-05-12 18:51 ` Nishanth Menon
2021-05-13 12:11 ` Kishon Vijay Abraham I
2021-05-13 14:01 ` Nishanth Menon [this message]
2021-05-17 8:30 ` Kishon Vijay Abraham I
2021-05-17 14:05 ` Nishanth Menon
2021-05-20 13:18 ` Kishon Vijay Abraham I
2021-05-20 13:41 ` Nishanth Menon
2021-05-12 15:12 ` [PATCH 2/4] arm64: dts: ti: k3-j721e-main: Add #clock-cells property to serdes DT node Kishon Vijay Abraham I
2021-05-12 15:12 ` [PATCH 3/4] arm64: dts: ti: k3-j721e-common-proc-board: Use external clock for SERDES Kishon Vijay Abraham I
2021-05-12 15:12 ` [PATCH 4/4] arm64: dts: ti: k3-j721e-common-proc-board: Re-name "link" name as "phy" Kishon Vijay Abraham I
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