linux-kernel - Re: [PATCH v2 4/5] clk: qcom: clk-alpha-pll: Add support for Lucid 5LPE PLL

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Date:   Thu, 10 Dec 2020 23:09:18 -0800
From:   Stephen Boyd <sboyd@...nel.org>
To:     Vinod Koul <vkoul@...nel.org>
Cc:     linux-arm-msm@...r.kernel.org,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Vivek Aknurwar <viveka@...eaurora.org>,
        Andy Gross <agross@...nel.org>,
        Michael Turquette <mturquette@...libre.com>,
        Rob Herring <robh+dt@...nel.org>,
        Taniya Das <tdas@...eaurora.org>, linux-clk@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        Jeevan Shriram <jshriram@...eaurora.org>
Subject: Re: [PATCH v2 4/5] clk: qcom: clk-alpha-pll: Add support for Lucid 5LPE PLL

Quoting Vinod Koul (2020-12-10 21:02:57)
> On 10-12-20, 12:36, Stephen Boyd wrote:
> > > +
> > > +       return regmap_update_bits(pll->clkr.regmap, PLL_USER_CTL(pll),
> > > +                               (BIT(pll->width) - 1) << pll->post_div_shift,
> > 
> > Use GENMASK?
> 
> Looks like this can be:
>                 GENMASK(pll->width + pll->post_div_shift - 1, pll->post_div_shift)
> 
> Not sure which one you like :)

Preferably a local u32 mask = GENMASK(...)