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authorMartin Blumenstingl <martin.blumenstingl@googlemail.com>2019-03-24 17:43:27 +0100
committerNeil Armstrong <narmstrong@baylibre.com>2019-03-25 13:18:09 +0100
commitd6f987c8462ab97591fbd6ed6bea6df61d2919e5 (patch)
treea50f07f47d6748c8ea904b52780ee40c84b650e9
parent9e05e49c29fde3f5e0d82542cb89e26c0bc828d0 (diff)
downloadblackbird-op-linux-d6f987c8462ab97591fbd6ed6bea6df61d2919e5.tar.gz
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clk: meson: pll: fix rounding and setting a rate that matches precisely
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> Reviewed-by: Jerome Brunet <jbrunet@baylibre.com> Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Link: https://lkml.kernel.org/r/20190324164327.22590-2-martin.blumenstingl@googlemail.com
-rw-r--r--drivers/clk/meson/clk-pll.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/clk/meson/clk-pll.c b/drivers/clk/meson/clk-pll.c
index 41e16dd7272a..7a14ac9b2fec 100644
--- a/drivers/clk/meson/clk-pll.c
+++ b/drivers/clk/meson/clk-pll.c
@@ -120,7 +120,7 @@ static bool meson_clk_pll_is_better(unsigned long rate,
return true;
} else {
/* Round down */
- if (now < rate && best < now)
+ if (now <= rate && best < now)
return true;
}
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