[net-next v2 2/7] stmmac: dwmac-sti: remove clk NULL checks

[Joachim Eastwood]

Since sti_dwmac_parse_data() sets dwmac->clk to NULL if not clock was
provided in DT and NULL is a valid clock there is no need to check for
NULL before using this clock.

Signed-off-by: Joachim Eastwood <manab...@gmail.com>
Acked-by: Giuseppe Cavallaro <peppe.cavall...@st.com>
Tested-by: Giuseppe Cavallaro <peppe.cavall...@st.com>
---
 drivers/net/ethernet/stmicro/stmmac/dwmac-sti.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-sti.c 
b/drivers/net/ethernet/stmicro/stmmac/dwmac-sti.c
index 075ed42..f009bf4 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-sti.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-sti.c
@@ -191,7 +191,7 @@ static void stih4xx_fix_retime_src(void *priv, u32 spd)
                }
        }
 
-       if (src == TX_RETIME_SRC_CLKGEN && dwmac->clk && freq)
+       if (src == TX_RETIME_SRC_CLKGEN && freq)
                clk_set_rate(dwmac->clk, freq);
 
        regmap_update_bits(dwmac->regmap, reg, STIH4XX_RETIME_SRC_MASK,
@@ -222,7 +222,7 @@ static void stid127_fix_retime_src(void *priv, u32 spd)
                        freq = DWMAC_2_5MHZ;
        }
 
-       if (dwmac->clk && freq)
+       if (freq)
                clk_set_rate(dwmac->clk, freq);
 
        regmap_update_bits(dwmac->regmap, reg, STID127_RETIME_SRC_MASK, val);
@@ -238,8 +238,7 @@ static int sti_dwmac_init(struct platform_device *pdev, 
void *priv)
        u32 reg = dwmac->ctrl_reg;
        u32 val;
 
-       if (dwmac->clk)
-               clk_prepare_enable(dwmac->clk);
+       clk_prepare_enable(dwmac->clk);
 
        if (of_property_read_bool(np, "st,gmac_en"))
                regmap_update_bits(regmap, reg, EN_MASK, EN);
@@ -258,8 +257,7 @@ static void sti_dwmac_exit(struct platform_device *pdev, 
void *priv)
 {
        struct sti_dwmac *dwmac = priv;
 
-       if (dwmac->clk)
-               clk_disable_unprepare(dwmac->clk);
+       clk_disable_unprepare(dwmac->clk);
 }
 static int sti_dwmac_parse_data(struct sti_dwmac *dwmac,
                                struct platform_device *pdev)
-- 
2.10.2