Revert "clk: starfive: jh7110-sys: Fix lower rate of CPUfreq by setti…

…ng PLL0 rate to 1.5GHz"

This reverts commit fc7b542.

drivers/clk/starfive/clk-starfive-jh7110-sys.c

@@ -501,52 +501,7 @@ static int __init jh7110_syscrg_probe(struct platform_device *pdev)
 	if (ret)
 		return ret;
 
-	ret = jh7110_reset_controller_register(priv, "rst-sys", 0);
-	if (ret)
-		return ret;
-
-	/*
-	 * Set PLL0 rate to 1.5GHz
-	 * In order to not affect the cpu when the PLL0 rate is changing,
-	 * we need to switch the parent of cpu_root clock to osc clock first,
-	 * and then switch back after setting the PLL0 rate.
-	 */
-	pllclk = clk_get(priv->dev, "pll0_out");
-	if (!IS_ERR(pllclk)) {
-		struct clk *osc = clk_get(&pdev->dev, "osc");
-		struct clk *cpu_root = priv->reg[JH7110_SYSCLK_CPU_ROOT].hw.clk;
-		struct clk *cpu_core = priv->reg[JH7110_SYSCLK_CPU_CORE].hw.clk;
-
-		if (IS_ERR(osc)) {
-			clk_put(pllclk);
-			return PTR_ERR(osc);
-		}
-
-		/*
-		 * CPU need voltage regulation by CPUfreq if set 1.5GHz.
-		 * So in this driver, cpu_core need to be set the divider to be 2 first
-		 * and will be 750M after setting parent.
-		 */
-		ret = clk_set_rate(cpu_core, clk_get_rate(cpu_core) / 2);
-		if (ret)
-			goto failed_set;
-
-		ret = clk_set_parent(cpu_root, osc);
-		if (ret)
-			goto failed_set;
-
-		ret = clk_set_rate(pllclk, 1500000000);
-		if (ret)
-			goto failed_set;
-
-		ret = clk_set_parent(cpu_root, pllclk);
-
-failed_set:
-		clk_put(pllclk);
-		clk_put(osc);
-	}
-
-	return ret;
+	return jh7110_reset_controller_register(priv, "rst-sys", 0);
 }
 
 static const struct of_device_id jh7110_syscrg_match[] = {