clk: rk3399: Enable/Disable the PCIEPHY clk

Enable/Disable the PCIEPHY clk for rk3399.

CLK is clear in both enable and disable functionality.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Tested-by: Suniel Mahesh <sunil@amarulasolutions.com> #roc-rk3399-pc
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
diff --git a/drivers/clk/rockchip/clk_rk3399.c b/drivers/clk/rockchip/clk_rk3399.c
index 371410d..6a78837 100644
--- a/drivers/clk/rockchip/clk_rk3399.c
+++ b/drivers/clk/rockchip/clk_rk3399.c
@@ -1139,6 +1139,9 @@
 	case HCLK_HOST1_ARB:
 		rk_clrreg(&priv->cru->clksel_con[20], BIT(8));
 		break;
+	case SCLK_PCIEPHY_REF:
+		rk_clrreg(&priv->cru->clksel_con[18], BIT(10));
+		break;
 	default:
 		debug("%s: unsupported clk %ld\n", __func__, clk->id);
 		return -ENOENT;
@@ -1212,6 +1215,9 @@
 	case HCLK_HOST1_ARB:
 		rk_setreg(&priv->cru->clksel_con[20], BIT(8));
 		break;
+	case SCLK_PCIEPHY_REF:
+		rk_clrreg(&priv->cru->clksel_con[18], BIT(10));
+		break;
 	default:
 		debug("%s: unsupported clk %ld\n", __func__, clk->id);
 		return -ENOENT;