clk: sunxi-ng: Fix inverted test condition in ccu_helper_wait_for_lock

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@csie.org>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>

diff --git a/drivers/clk/sunxi-ng/ccu_common.c b/drivers/clk/sunxi-ng/ccu_common.c
index fc17b5295e1694629a2c48d5647ea03f8879433f..51d4bac97ab301f9d0213ff40327325622fd2109 100644 (file)
--- 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,