linux-kernel - Re: [PATCH v1 3/3] arm64: dts: qcom: ipq5332: Add icc provider ability to gcc

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <Zo5lfDVVdgZ/iwi3@hu-varada-blr.qualcomm.com>
Date: Wed, 10 Jul 2024 16:12:04 +0530
From: Varadarajan Narayanan <quic_varada@...cinc.com>
To: Konrad Dybcio <konrad.dybcio@...aro.org>
CC: <andersson@...nel.org>, <mturquette@...libre.com>, <sboyd@...nel.org>,
        <robh@...nel.org>, <krzk+dt@...nel.org>, <conor+dt@...nel.org>,
        <djakov@...nel.org>, <linux-arm-msm@...r.kernel.org>,
        <linux-clk@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <linux-pm@...r.kernel.org>
Subject: Re: [PATCH v1 3/3] arm64: dts: qcom: ipq5332: Add icc provider
 ability to gcc

On Tue, Jul 09, 2024 at 11:53:41AM +0200, Konrad Dybcio wrote:
> On 9.07.2024 8:39 AM, Varadarajan Narayanan wrote:
> > IPQ SoCs dont involve RPM in managing NoC related clocks and
> > there is no NoC scaling. Linux itself handles these clocks.
> > However, these should not be exposed as just clocks and align
> > with other Qualcomm SoCs that handle these clocks from a
> > interconnect provider.
> >
> > Hence include icc provider capability to the gcc node so that
> > peripherals can use the interconnect facility to enable these
> > clocks.
> >
> > Signed-off-by: Varadarajan Narayanan <quic_varada@...cinc.com>
> > ---
>
> Doesn't the USB host need to have its path described to keep working?

Presently, USB host enables GCC_SNOC_USB_CLK directly using
the clocks/clock-name entries. So it is not dependent on ICC.

Shall I update the USB DT node to use interconnects now itself,
or wait until this IPQ5332 ICC enablement series is approved?
Please let me know.

Thanks
Varada