phy: cadence: Sierra: Enable pll_cmnlc and pll_cmnlc1 clocks

Get pll_cmnlc and pll_cmnlc1 optional clocks and enable them.
This will enable REFRCV/1 in case the pll_cmnlc/1 takes input
from REFRCV/1 respectively.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Reviewed-by: Swapnil Jakhade <sjakhade@cadence.com>
Link: https://lore.kernel.org/r/20210319124128.13308-14-kishon@ti.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>

diff --git a/drivers/phy/cadence/phy-cadence-sierra.c b/drivers/phy/cadence/phy-cadence-sierra.c
index 039ca10..5c68e31 100644 (file)
--- a/drivers/phy/cadence/phy-cadence-sierra.c
+++ b/drivers/phy/cadence/phy-cadence-sierra.c
@@ -768,6 +768,40 @@ static int cdns_sierra_phy_get_clocks(struct cdns_sierra_phy *sp,
        return 0;
 }
 
+static int cdns_sierra_phy_enable_clocks(struct cdns_sierra_phy *sp)
+{
+       int ret;
+
+       ret = clk_prepare_enable(sp->input_clks[PHY_CLK]);
+       if (ret)
+               return ret;
+
+       ret = clk_prepare_enable(sp->output_clks[CDNS_SIERRA_PLL_CMNLC]);
+       if (ret)
+               goto err_pll_cmnlc;
+
+       ret = clk_prepare_enable(sp->output_clks[CDNS_SIERRA_PLL_CMNLC1]);
+       if (ret)
+               goto err_pll_cmnlc1;
+
+       return 0;
+
+err_pll_cmnlc1:
+       clk_disable_unprepare(sp->output_clks[CDNS_SIERRA_PLL_CMNLC]);
+
+err_pll_cmnlc:
+       clk_disable_unprepare(sp->input_clks[PHY_CLK]);
+
+       return ret;
+}
+
+static void cdns_sierra_phy_disable_clocks(struct cdns_sierra_phy *sp)
+{
+       clk_disable_unprepare(sp->output_clks[CDNS_SIERRA_PLL_CMNLC1]);
+       clk_disable_unprepare(sp->output_clks[CDNS_SIERRA_PLL_CMNLC]);
+       clk_disable_unprepare(sp->input_clks[PHY_CLK]);
+}
+
 static int cdns_sierra_phy_get_resets(struct cdns_sierra_phy *sp,
                                      struct device *dev)
 {
@@ -848,7 +882,7 @@ static int cdns_sierra_phy_probe(struct platform_device *pdev)
        if (ret)
                goto unregister_clk;
 
-       ret = clk_prepare_enable(sp->input_clks[PHY_CLK]);
+       ret = cdns_sierra_phy_enable_clocks(sp);
        if (ret)
                goto unregister_clk;
 
@@ -925,7 +959,7 @@ put_child2:
                reset_control_put(sp->phys[i].lnk_rst);
        of_node_put(child);
 clk_disable:
-       clk_disable_unprepare(sp->input_clks[PHY_CLK]);
+       cdns_sierra_phy_disable_clocks(sp);
        reset_control_assert(sp->apb_rst);
 unregister_clk:
        cdns_sierra_clk_unregister(sp);
@@ -941,6 +975,7 @@ static int cdns_sierra_phy_remove(struct platform_device *pdev)
        reset_control_assert(phy->apb_rst);
        pm_runtime_disable(&pdev->dev);
 
+       cdns_sierra_phy_disable_clocks(phy);
        /*
         * The device level resets will be put automatically.
         * Need to put the subnode resets here though.
@@ -950,7 +985,6 @@ static int cdns_sierra_phy_remove(struct platform_device *pdev)
                reset_control_put(phy->phys[i].lnk_rst);
        }
 
-       clk_disable_unprepare(phy->input_clks[PHY_CLK]);
        cdns_sierra_clk_unregister(phy);
 
        return 0;