clk: k210: Fix PLL enable always getting taken

This conditional always evaluated as false, regardless of the value of reg.
Fix it so that it properly tests the bits in the PLL register. Also test
PLL_EN, now that we set it.

Reported-by: Damien Le Moal <Damien.LeMoal@wdc.com>
Signed-off-by: Sean Anderson <seanga2@gmail.com>

diff --git a/drivers/clk/kendryte/pll.c b/drivers/clk/kendryte/pll.c
index f198920113119459c6950102fea1aab1da2771c9..d46fd0ebbf9676f00911e78d493ccd6834a2fb42 100644 (file)
--- a/drivers/clk/kendryte/pll.c
+++ b/drivers/clk/kendryte/pll.c
@@ -512,7 +512,8 @@ static int k210_pll_enable(struct clk *clk)
        struct k210_pll *pll = to_k210_pll(clk);
        u32 reg = readl(pll->reg);
 
-       if ((reg | K210_PLL_PWRD) && !(reg | K210_PLL_RESET))
+       if ((reg & K210_PLL_PWRD) && (reg & K210_PLL_EN) &&
+           !(reg & K210_PLL_RESET))
                return 0;
 
        reg |= K210_PLL_PWRD;