linux-kernel - Re: [RFC 3/3] arm64: dts: qcom: sa8775p-ride: Enable support for firmware managed resources

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Date: Tue, 5 Mar 2024 18:08:44 +0100
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: Sriram Dash <quic_sriramd@...cinc.com>, andersson@...nel.org,
 konrad.dybcio@...aro.org, vkoul@...nel.org, kishon@...nel.org,
 robh@...nel.org, krzysztof.kozlowski+dt@...aro.org, conor+dt@...nel.org,
 gregkh@...uxfoundation.org, quic_wcheng@...cinc.com,
 Thinh.Nguyen@...opsys.com, p.zabel@...gutronix.de,
 linux-arm-msm@...r.kernel.org, linux-phy@...ts.infradead.org,
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
 linux-usb@...r.kernel.org, quic_psodagud@...cinc.com,
 quic_nkela@...cinc.com, manivannan.sadhasivam@...aro.org,
 ulf.hansson@...aro.org, sudeep.holla@....com, quic_shazhuss@...cinc.com
Subject: Re: [RFC 3/3] arm64: dts: qcom: sa8775p-ride: Enable support for
 firmware managed resources

On 05/03/2024 17:57, Sriram Dash wrote:
> Establish the channel and domain mapping for the power domains to connect
> with firmware, enabling the firmware to handle the assigned resources.
> Since these delegated resources will remain invisible to the operating
> system, ensure that any references to them are removed.
> 
> Signed-off-by: Sriram Dash <quic_sriramd@...cinc.com>
> ---
>  arch/arm64/boot/dts/qcom/sa8775p-ride.dts | 96 +++++++++++++++++++++++++------
>  1 file changed, 77 insertions(+), 19 deletions(-)

Do not mix DTS patches with submissions to netdev or USB.

Please put it inside your internal guides, so you will not be repeating
this over and over.

> 
> diff --git a/arch/arm64/boot/dts/qcom/sa8775p-ride.dts b/arch/arm64/boot/dts/qcom/sa8775p-ride.dts
> index 26ad05b..b6c9cac 100644
> --- a/arch/arm64/boot/dts/qcom/sa8775p-ride.dts
> +++ b/arch/arm64/boot/dts/qcom/sa8775p-ride.dts
> @@ -764,8 +764,18 @@
>  };
>  
>  &usb_0 {
> -	pinctrl-names = "default";
> -	pinctrl-0 = <&usb0_en_state>;
> +	/delete-property/ clocks;
> +	/delete-property/ clock-names;
> +	/delete-property/ assigned-clocks;
> +	/delete-property/ assigned-clock-rates;
> +	/delete-property/ required-opps;
> +	/delete-property/ resets;
> +	/delete-property/ interconnects;
> +	/delete-property/ interconnect-names;
> +
> +	power-domains = <TODO>, <TODO>;

This wasn't even tested.

Best regards,
Krzysztof