[PATCH v2 02/16] clk: k210: Fix PLL enable always getting taken

[Sean Anderson]

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 at wdc.com>
Signed-off-by: Sean Anderson <seanga2 at gmail.com>
---

Changes in v2:
- New

 drivers/clk/kendryte/pll.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/clk/kendryte/pll.c b/drivers/clk/kendryte/pll.c
index f198920113..d46fd0ebbf 100644
--- 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;
-- 
2.28.0