From: Chen-Yu Tsai <wens-jdAy2FN1RRM@public.gmane.org>
To: Michael Turquette
<mturquette-rdvid1DuHRBWk0Htik3J/w@public.gmane.org>,
Stephen Boyd <sboyd-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>,
Rob Herring <robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
Mark Rutland <mark.rutland-5wv7dgnIgG8@public.gmane.org>,
Maxime Ripard
<maxime.ripard-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>
Cc: dev-3kdeTeqwOZ9EV1b7eY7vFQ@public.gmane.org,
Chen-Yu Tsai <wens-jdAy2FN1RRM@public.gmane.org>,
linux-clk-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: [PATCH resend 1/9] clk: sunxi-ng: Fix inverted test condition in ccu_helper_wait_for_lock
Date: Tue, 26 Jul 2016 15:04:23 +0800 [thread overview]
Message-ID: <1469516671-19377-2-git-send-email-wens@csie.org> (raw)
In-Reply-To: <1469516671-19377-1-git-send-email-wens-jdAy2FN1RRM@public.gmane.org>
The condition passed to read*_poll_timeout() is the break condition,
i.e. wait for this condition to happen and return success.
The original code assumed the opposite, resulting in a warning when
the PLL clock rate was changed but never lost it's lock as far as
the readout indicated. This was verified by checking the read out
register value.
Fixes: 1d80c14248d6 ("clk: sunxi-ng: Add common infrastructure")
Signed-off-by: Chen-Yu Tsai <wens-jdAy2FN1RRM@public.gmane.org>
Acked-by: Maxime Ripard <maxime.ripard-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>
---
drivers/clk/sunxi-ng/ccu_common.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/clk/sunxi-ng/ccu_common.c b/drivers/clk/sunxi-ng/ccu_common.c
index fc17b5295e16..51d4bac97ab3 100644
--- a/drivers/clk/sunxi-ng/ccu_common.c
+++ b/drivers/clk/sunxi-ng/ccu_common.c
@@ -31,7 +31,7 @@ void ccu_helper_wait_for_lock(struct ccu_common *common, u32 lock)
return;
WARN_ON(readl_relaxed_poll_timeout(common->base + common->reg, reg,
- !(reg & lock), 100, 70000));
+ reg & lock, 100, 70000));
}
int sunxi_ccu_probe(struct device_node *node, void __iomem *reg,
--
2.8.1
--
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next prev parent reply other threads:[~2016-07-26 7:04 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-07-26 7:04 [PATCH 0/9] clk: sunxi-ng: Support A31/A31s CCU Chen-Yu Tsai
2016-07-26 7:04 ` [PATCH 3/9] clk: sunxi-ng: mux: Increase fixed pre-divider div size Chen-Yu Tsai
[not found] ` <1469516671-19377-4-git-send-email-wens-jdAy2FN1RRM@public.gmane.org>
2016-07-27 6:43 ` Maxime Ripard
2016-07-26 7:04 ` [PATCH 4/9] clk: sunxi-ng: mux: Add support for mux tables Chen-Yu Tsai
2016-07-26 17:43 ` Jean-Francois Moine
2016-07-27 6:59 ` Maxime Ripard
2016-07-27 7:18 ` Jean-Francois Moine
2016-07-27 7:30 ` Chen-Yu Tsai
[not found] ` <20160727091827.e26f72701ce5758fa29aff7a-GANU6spQydw@public.gmane.org>
2016-07-27 7:40 ` Maxime Ripard
2016-07-27 8:36 ` Jean-Francois Moine
[not found] ` <20160727103649.9e6ef332847b5a5c8fac66af-GANU6spQydw@public.gmane.org>
2016-07-28 13:28 ` Maxime Ripard
2016-07-28 14:23 ` Jean-Francois Moine
[not found] ` <1469516671-19377-5-git-send-email-wens-jdAy2FN1RRM@public.gmane.org>
2016-07-27 6:48 ` Maxime Ripard
[not found] ` <1469516671-19377-1-git-send-email-wens-jdAy2FN1RRM@public.gmane.org>
2016-07-26 7:04 ` Chen-Yu Tsai [this message]
[not found] ` <1469516671-19377-2-git-send-email-wens-jdAy2FN1RRM@public.gmane.org>
2016-07-26 8:56 ` [PATCH resend 1/9] clk: sunxi-ng: Fix inverted test condition in ccu_helper_wait_for_lock Maxime Ripard
2016-07-26 7:04 ` [PATCH 2/9] clk: sunxi-ng: nk: Make ccu_nk_find_best static Chen-Yu Tsai
[not found] ` <1469516671-19377-3-git-send-email-wens-jdAy2FN1RRM@public.gmane.org>
2016-07-26 8:57 ` Maxime Ripard
2016-07-26 7:04 ` [PATCH 5/9] clk: sunxi-ng: mux: support fixed pre-dividers on multiple parents Chen-Yu Tsai
[not found] ` <1469516671-19377-6-git-send-email-wens-jdAy2FN1RRM@public.gmane.org>
2016-07-27 7:26 ` Maxime Ripard
2016-07-27 8:38 ` Jean-Francois Moine
2016-07-26 7:04 ` [PATCH 6/9] clk: sunxi-ng: nkm: Add mux to support " Chen-Yu Tsai
[not found] ` <1469516671-19377-7-git-send-email-wens-jdAy2FN1RRM@public.gmane.org>
2016-07-27 7:27 ` Maxime Ripard
2016-07-26 7:04 ` [PATCH 7/9] clk: sunxi-ng: mux: Add clk notifier functions Chen-Yu Tsai
[not found] ` <1469516671-19377-8-git-send-email-wens-jdAy2FN1RRM@public.gmane.org>
2016-07-27 7:30 ` Maxime Ripard
2016-07-27 7:32 ` Chen-Yu Tsai
[not found] ` <CAGb2v67KcvzxadXYTWSg42+gpRxt4fhNmiWmtAD5D7r0+K4T8g-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2016-07-27 7:43 ` Maxime Ripard
2016-07-26 7:04 ` [PATCH 8/9] clk: sunxi-ng: Add A31/A31s clocks Chen-Yu Tsai
2016-07-26 8:30 ` Jean-Francois Moine
2016-07-27 14:59 ` Rob Herring
[not found] ` <1469516671-19377-9-git-send-email-wens-jdAy2FN1RRM@public.gmane.org>
2016-07-28 13:31 ` Maxime Ripard
2016-07-26 7:04 ` [PATCH 9/9] ARM: dts: sun6i: switch A31/A31s to new CCU clock bindings Chen-Yu Tsai
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