[PATCH v2 10/14] phy: cadence: sierra: Enable pll_cmnlc and pll_cmnlc1 clocks

[Kishon Vijay Abraham I]

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 <kis...@ti.com>
---
 drivers/phy/cadence/phy-cadence-sierra.c | 56 +++++++++++++++++++++++-
 1 file changed, 54 insertions(+), 2 deletions(-)

diff --git a/drivers/phy/cadence/phy-cadence-sierra.c 
b/drivers/phy/cadence/phy-cadence-sierra.c
index 2a509be80c80..553971683f2d 100644
--- a/drivers/phy/cadence/phy-cadence-sierra.c
+++ b/drivers/phy/cadence/phy-cadence-sierra.c
@@ -267,6 +267,8 @@ struct cdns_sierra_phy {
        struct clk *clk;
        struct clk *cmn_refclk_dig_div;
        struct clk *cmn_refclk1_dig_div;
+       struct clk *pll_cmnlc;
+       struct clk *pll_cmnlc1;
        int nsubnodes;
        u32 num_lanes;
        bool autoconf;
@@ -874,9 +876,59 @@ static int cdns_sierra_phy_get_clocks(struct 
cdns_sierra_phy *sp,
        }
        sp->cmn_refclk1_dig_div = clk;
 
+       clk = devm_clk_get_optional(dev, "pll_cmnlc");
+       if (IS_ERR(clk)) {
+               dev_err(dev, "pll_cmnlc clock not found\n");
+               ret = PTR_ERR(clk);
+               return ret;
+       }
+       sp->pll_cmnlc = clk;
+
+       clk = devm_clk_get_optional(dev, "pll_cmnlc1");
+       if (IS_ERR(clk)) {
+               dev_err(dev, "pll_cmnlc1 clock not found\n");
+               ret = PTR_ERR(clk);
+               return ret;
+       }
+       sp->pll_cmnlc1 = clk;
+
        return 0;
 }
 
+static int cdns_sierra_phy_enable_clocks(struct cdns_sierra_phy *sp)
+{
+       int ret;
+
+       ret = clk_prepare_enable(sp->clk);
+       if (ret)
+               return ret;
+
+       ret = clk_prepare_enable(sp->pll_cmnlc);
+       if (ret)
+               goto err_pll_cmnlc;
+
+       ret = clk_prepare_enable(sp->pll_cmnlc1);
+       if (ret)
+               goto err_pll_cmnlc1;
+
+       return 0;
+
+err_pll_cmnlc:
+       clk_disable_unprepare(sp->clk);
+
+err_pll_cmnlc1:
+       clk_disable_unprepare(sp->pll_cmnlc);
+
+       return 0;
+}
+
+static void cdns_sierra_phy_disable_clocks(struct cdns_sierra_phy *sp)
+{
+       clk_disable_unprepare(sp->pll_cmnlc1);
+       clk_disable_unprepare(sp->pll_cmnlc);
+       clk_disable_unprepare(sp->clk);
+}
+
 static int cdns_sierra_phy_get_resets(struct cdns_sierra_phy *sp,
                                      struct device *dev)
 {
@@ -961,7 +1013,7 @@ static int cdns_sierra_phy_probe(struct platform_device 
*pdev)
        if (ret)
                goto unregister_pll_mux;
 
-       ret = clk_prepare_enable(sp->clk);
+       ret = cdns_sierra_phy_enable_clocks(sp);
        if (ret)
                goto unregister_pll_mux;
 
@@ -1038,7 +1090,7 @@ static int cdns_sierra_phy_probe(struct platform_device 
*pdev)
                reset_control_put(sp->phys[i].lnk_rst);
        of_node_put(child);
 clk_disable:
-       clk_disable_unprepare(sp->clk);
+       cdns_sierra_phy_disable_clocks(sp);
        reset_control_assert(sp->apb_rst);
 unregister_pll_mux:
        cdns_sierra_pll_mux_unregister(sp, dn);
-- 
2.17.1