linux-kernel - Re: [PATCH v3 1/3] clk: analogbits: add Wide-Range PLL library

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Date:   Fri, 26 Apr 2019 18:01:51 -0700
From:   Stephen Boyd <sboyd@...nel.org>
To:     Paul Walmsley <paul.walmsley@...ive.com>,
        devicetree@...r.kernel.org, linux-clk@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-riscv@...ts.infradead.org
Cc:     Paul Walmsley <paul.walmsley@...ive.com>,
        Paul Walmsley <paul@...an.com>,
        Wesley Terpstra <wesley@...ive.com>,
        Palmer Dabbelt <palmer@...ive.com>,
        Michael Turquette <mturquette@...libre.com>,
        Megan Wachs <megan@...ive.com>
Subject: Re: [PATCH v3 1/3] clk: analogbits: add Wide-Range PLL library

Quoting Paul Walmsley (2019-04-11 01:27:32)
> Add common library code for the Analog Bits Wide-Range PLL (WRPLL) IP
> block, as implemented in TSMC CLN28HPC.
> 
> There is no bus interface or register target associated with this PLL.
> This library is intended to be used by drivers for IP blocks that
> expose registers connected to the PLL configuration and status
> signals.
> 
> Based on code originally written by Wesley Terpstra
> <wesley@...ive.com>:
> https://github.com/riscv/riscv-linux/commit/999529edf517ed75b56659d456d221b2ee56bb60
> 
> This version incorporates several changes requested by Stephen
> Boyd <sboyd@...nel.org>.
> 
> Signed-off-by: Paul Walmsley <paul.walmsley@...ive.com>
> Signed-off-by: Paul Walmsley <paul@...an.com>
> Cc: Wesley Terpstra <wesley@...ive.com>
> Cc: Palmer Dabbelt <palmer@...ive.com>
> Cc: Michael Turquette <mturquette@...libre.com>
> Cc: Stephen Boyd <sboyd@...nel.org>
> Cc: Megan Wachs <megan@...ive.com>
> Cc: linux-clk@...r.kernel.org
> Cc: linux-kernel@...r.kernel.org
> ---

I haven't deeply reviewed at all, but I already get two problems when
compile testing these patches. I can fix them up if nothing else needs
fixing.

drivers/clk/analogbits/wrpll-cln28hpc.c:165 __wrpll_calc_divq() warn: should 'target_rate << divq' be a 64 bit type?
drivers/clk/sifive/fu540-prci.c:214:16: error: return expression in void function