CLK: HSDK: CGU: check if PLL is bypassed first

If PLL is bypassed the EN (enable) bit has no effect on
output clock.

Signed-off-by: Eugeniy Paltsev <[email protected]>
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Stephen Boyd <[email protected]>

Author: Eugeniy Paltsev

drivers/clk/clk-hsdk-pll.c

@@ -172,14 +172,14 @@ static unsigned long hsdk_pll_recalc_rate(struct clk_hw *hw,
 
 	dev_dbg(clk->dev, "current configuration: %#x\n", val);
 
-	/* Check if PLL is disabled */
-	if (val & CGU_PLL_CTRL_PD)
-		return 0;
-
 	/* Check if PLL is bypassed */
 	if (val & CGU_PLL_CTRL_BYPASS)
 		return parent_rate;
 
+	/* Check if PLL is disabled */
+	if (val & CGU_PLL_CTRL_PD)
+		return 0;
+
 	/* input divider = reg.idiv + 1 */
 	idiv = 1 + ((val & CGU_PLL_CTRL_IDIV_MASK) >> CGU_PLL_CTRL_IDIV_SHIFT);
 	/* fb divider = 2*(reg.fbdiv + 1) */