linux-kernel - Re: [RESEND][PATCH] clk: at91: generated: Truncate divisor to GENERATED_MAX

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Date:   Mon, 22 Jul 2019 14:32:14 -0700
From:   Stephen Boyd <sboyd@...nel.org>
To:     Codrin Ciubotariu <codrin.ciubotariu@...rochip.com>,
        alexandre.belloni@...tlin.com, ludovic.desroches@...rochip.com,
        nicolas.ferre@...rochip.com
Cc:     linux-clk@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org,
        Codrin Ciubotariu <codrin.ciubotariu@...rochip.com>
Subject: Re: [RESEND][PATCH] clk: at91: generated: Truncate divisor to GENERATED_MAX_DIV + 1

Quoting Codrin Ciubotariu (2019-06-25 02:10:02)
> In clk_generated_determine_rate(), if the divisor is greater than
> GENERATED_MAX_DIV + 1, then the wrong best_rate will be returned.
> If clk_generated_set_rate() will be called later with this wrong
> rate, it will return -EINVAL, so the generated clock won't change
> its value. Do no let the divisor be greater than GENERATED_MAX_DIV + 1.
> 
> Fixes: 8c7aa6328947 ("clk: at91: clk-generated: remove useless divisor loop")
> Signed-off-by: Codrin Ciubotariu <codrin.ciubotariu@...rochip.com>
> Acked-by: Nicolas Ferre <nicolas.ferre@...rochip.com>
> Acked-by: Ludovic Desroches <ludovic.desroches@...rochip.com>
> ---

Applied to clk-fixes