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Message-ID: <169523004952.2665018.4505782565131153297.b4-ty@kernel.org>
Date: Wed, 20 Sep 2023 10:14:08 -0700
From: Bjorn Andersson <andersson@...nel.org>
To: agross@...nel.org, konrad.dybcio@...aro.org,
mturquette@...libre.com, sboyd@...nel.org, mturquette@...aro.org,
linux-arm-msm@...r.kernel.org, linux-clk@...r.kernel.org,
linux-kernel@...r.kernel.org,
Devi Priya <quic_devipriy@...cinc.com>
Cc: quic_saahtoma@...cinc.com
Subject: Re: [PATCH V2] clk: qcom: clk-rcg2: Fix clock rate overflow for high parent frequencies
On Fri, 01 Sep 2023 13:06:40 +0530, Devi Priya wrote:
> If the parent clock rate is greater than unsigned long max/2 then
> integer overflow happens when calculating the clock rate on 32-bit systems.
> As RCG2 uses half integer dividers, the clock rate is first being
> multiplied by 2 which will overflow the unsigned long max value.
> Hence, replace the common pattern of doing 64-bit multiplication
> and then a do_div() call with simpler mult_frac call.
>
> [...]
Applied, thanks!
[1/1] clk: qcom: clk-rcg2: Fix clock rate overflow for high parent frequencies
commit: f7b7d30158cff246667273bd2a62fc93ee0725d2
Best regards,
--
Bjorn Andersson <andersson@...nel.org>
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