linux-kernel - Re: [PATCH v2 2/2] arm64: dts: ti: k3-j721e-common-proc-board: add DP to j7 evm

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Message-ID: <20220405062237.swilick4ssnrni2l@uda0490373>
Date:   Tue, 5 Apr 2022 11:52:38 +0530
From:   Rahul T R <r-ravikumar@...com>
To:     Vignesh Raghavendra <vigneshr@...com>
CC:     <nm@...com>, <kristo@...nel.org>, <robh+dt@...nel.org>,
        <krzysztof.kozlowski@...onical.com>,
        <linux-arm-kernel@...ts.infradead.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <tomi.valkeinen@...asonboard.com>,
        <laurent.pinchart@...asonboard.com>, <kishon@...com>
Subject: Re: [PATCH v2 2/2] arm64: dts: ti: k3-j721e-common-proc-board: add
 DP to j7 evm

On 10:33-20220401, Vignesh Raghavendra wrote:
> Hi Rahul,
> 
> On 31/03/22 8:00 pm, Rahul T R wrote:
> > From: Tomi Valkeinen <tomi.valkeinen@...com>
> > 
> > Add the endpoint nodes to describe connection from
> > DSS => MHDP => DisplayPort connector.
> > Also add the phy link node and required pinmux nodes
> > for hotplug.
> > 
> > Signed-off-by: Tomi Valkeinen <tomi.valkeinen@...com>
> > Signed-off-by: Rahul T R <r-ravikumar@...com>
> > ---
> >  .../dts/ti/k3-j721e-common-proc-board.dts     | 78 ++++++++++++++++++-
> >  1 file changed, 74 insertions(+), 4 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 f5ca8e26ed99..8ddc0d3bd058 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
> > @@ -148,6 +148,28 @@
> >  		pinctrl-0 = <&main_mcan2_gpio_pins_default>;
> >  		standby-gpios = <&main_gpio0 127 GPIO_ACTIVE_HIGH>;
> >  	};
> > +
> > +	dp_pwr_3v3: fixedregulator-dp-prw {
> 
> Please use standard node name: regulator-X as per DT spec [1]
> 
> 
> [1]
> https://github.com/devicetree-org/devicetree-specification/releases/tag/v0.3
> 
> > +		compatible = "regulator-fixed";
> > +		regulator-name = "dp-pwr";
> > +		regulator-min-microvolt = <3300000>;
> > +		regulator-max-microvolt = <3300000>;
> > +		gpio = <&exp4 0 0>;	/* P0 - DP0_PWR_SW_EN */
> 
> Please use GPIO_ACTIVE_* macros as appropriate.

Thanks Vignesh,

Will address the review comments in the respin

Regards
Rahul T R

> 
> > +		enable-active-high;
> > +	};
> > +
> [...]