From: Jerome Brunet <jbrunet@baylibre.com>
To: Martin Blumenstingl <martin.blumenstingl@googlemail.com>,
narmstrong@baylibre.com, linux-amlogic@lists.infradead.org,
linux-clk@vger.kernel.org
Cc: mturquette@baylibre.com, sboyd@kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 1/1] clk: meson: pll: fix rounding and setting a rate that matches precisely
Date: Mon, 25 Mar 2019 10:48:35 +0100 [thread overview]
Message-ID: <c8328cbe29fe905834a618dbb263f4fb79be3d22.camel@baylibre.com> (raw)
In-Reply-To: <20190324164327.22590-2-martin.blumenstingl@googlemail.com>
On Sun, 2019-03-24 at 17:43 +0100, Martin Blumenstingl wrote:
> Make meson_clk_pll_is_better() consider a rate that precisely matches
> the requested rate to be better than any previous rate (which was
> smaller than the current).
>
> Prior to commit 8eed1db1adec6a ("clk: meson: pll: update driver for the
> g12a") meson_clk_get_pll_settings() returned early (before calling
> meson_clk_pll_is_better()) if the rate from the current iteration
> matches the requested rate precisely. After this commit
> meson_clk_pll_is_better() is called unconditionally. This requires
> meson_clk_pll_is_better() to work with the case where "now == rate".
>
> This fixes a hang during boot on Meson8b / Odroid-C1 for me.
>
> Fixes: 8eed1db1adec6a ("clk: meson: pll: update driver for the g12a")
> Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Good catch !
Reviewed-by: Jerome Brunet <jbrunet@baylibre.com>
next prev parent reply other threads:[~2019-03-25 9:48 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-24 16:43 [PATCH 0/1] clk: meson: fix PLL rate rounding Martin Blumenstingl
2019-03-24 16:43 ` [PATCH 1/1] clk: meson: pll: fix rounding and setting a rate that matches precisely Martin Blumenstingl
2019-03-25 9:48 ` Jerome Brunet [this message]
2019-03-25 12:18 ` Neil Armstrong
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