linux-kernel - Re: [PATCH v6 5/6] arm64: dts: qcom: sm8450: Add opp table support to PCIe

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Message-ID: <20240130095508.zgufudflizrpxqhy@vireshk-i7>
Date: Tue, 30 Jan 2024 15:25:08 +0530
From: Viresh Kumar <viresh.kumar@...aro.org>
To: Manivannan Sadhasivam <mani@...nel.org>
Cc: Krishna chaitanya chundru <quic_krichai@...cinc.com>,
	Bjorn Andersson <andersson@...nel.org>,
	Konrad Dybcio <konrad.dybcio@...aro.org>,
	Bjorn Helgaas <bhelgaas@...gle.com>,
	Lorenzo Pieralisi <lpieralisi@...nel.org>,
	Krzysztof Wilczyński <kw@...ux.com>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Rob Herring <robh+dt@...nel.org>,
	Johan Hovold <johan+linaro@...nel.org>,
	Brian Masney <bmasney@...hat.com>,
	Georgi Djakov <djakov@...nel.org>, linux-arm-msm@...r.kernel.org,
	vireshk@...nel.org, quic_vbadigan@...cinc.com,
	quic_skananth@...cinc.com, quic_nitegupt@...cinc.com,
	linux-pci@...r.kernel.org, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v6 5/6] arm64: dts: qcom: sm8450: Add opp table support
 to PCIe

On 30-01-24, 15:18, Manivannan Sadhasivam wrote:
> So you are saying that the ICC core itself should get the bw values from DT
> instead of hardcoding in the driver? If so, I'd like to get the opinion from
> Georgi/Bjorn.

Not really. The drivers or the ICC core doesn't need to do anything I
guess. Since the values are coming via the OPP, we must just use it to
hide all these details.

Why is the ICC core required to get into this here ? ICC core should
be ready to get the information from DT (may or may not via the OPP
core), or from driver.

-- 
viresh