linux-kernel - Re: [PATCH 0/3] clk: qcom: gdsc: add support for collapse-vote registers

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]

Date:   Thu, 23 Jun 2022 13:44:17 +0200
From:   Johan Hovold <johan@...nel.org>
To:     Bjorn Andersson <bjorn.andersson@...aro.org>
Cc:     Andy Gross <agross@...nel.org>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>, linux-arm-msm@...r.kernel.org,
        linux-clk@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/3] clk: qcom: gdsc: add support for collapse-vote
 registers

On Fri, May 20, 2022 at 12:09:45PM +0200, Johan Hovold wrote:
> Recent Qualcomm platforms have APCS collapse-vote registers that allow
> for sharing GDSCs with other masters (e.g. LPASS).
>     
> Add support for using such vote registers instead of the control
> register when updating the GDSC power state.
> 
> Note that the gcc-sc8280xp driver has not yet been merged. [1]

The sc8280xp driver has been merged so this series could go in now.

Bjorn?
 
> [1] https://lore.kernel.org/all/20220505025457.1693716-1-bjorn.andersson@linaro.org/
> 
> 
> Johan Hovold (3):
>   clk: qcom: gdsc: add collapse-bit helper
>   clk: qcom: gdsc: add support for collapse-vote registers
>   clk: qcom: gcc-sc8280xp: use collapse-voting for PCIe GDSCs
> 
>  drivers/clk/qcom/gcc-sc8280xp.c | 21 +++++++++++++++++++++
>  drivers/clk/qcom/gdsc.c         | 28 ++++++++++++++++++++++------
>  drivers/clk/qcom/gdsc.h         |  4 ++++
>  3 files changed, 47 insertions(+), 6 deletions(-)

Johan