[PATCH v2 08/11] net: dwc_eth_qos: Constify st, eth-* values parsed out of DT

[Marek Vasut]

Use const bool for the values parsed out of DT. Drop the duplicate
assignment of false into those bool variables, assign them directly
with the content parsed out of DT. Abbreviate the variable name too.

Reviewed-by: Patrice Chotard <patrice.chot...@foss.st.com>
Signed-off-by: Marek Vasut <ma...@denx.de>
---
Cc: Christophe Roullier <christophe.roull...@st.com>
Cc: Joe Hershberger <joe.hershber...@ni.com>
Cc: Patrice Chotard <patrice.chot...@foss.st.com>
Cc: Patrick Delaunay <patrick.delau...@foss.st.com>
Cc: Ramon Fried <rfried....@gmail.com>
Cc: u-b...@dh-electronics.com
Cc: uboot-st...@st-md-mailman.stormreply.com
---
V2: - Add RB from Patrice
    - Add trailing fullstop at the end of code comment
---
 drivers/net/dwc_eth_qos_stm32.c | 18 +++++++-----------
 1 file changed, 7 insertions(+), 11 deletions(-)

diff --git a/drivers/net/dwc_eth_qos_stm32.c b/drivers/net/dwc_eth_qos_stm32.c
index 72f65f80540..0b13d01346b 100644
--- a/drivers/net/dwc_eth_qos_stm32.c
+++ b/drivers/net/dwc_eth_qos_stm32.c
@@ -128,17 +128,13 @@ static int eqos_stop_clks_stm32(struct udevice *dev)
 static int eqos_probe_syscfg_stm32(struct udevice *dev,
                                   phy_interface_t interface_type)
 {
-       bool eth_ref_clk_sel_reg = false;
-       bool eth_clk_sel_reg = false;
+       /* Ethernet 50MHz RMII clock selection. */
+       const bool eth_ref_clk_sel = dev_read_bool(dev, "st,eth-ref-clk-sel");
+       /* Gigabit Ethernet 125MHz clock selection. */
+       const bool eth_clk_sel = dev_read_bool(dev, "st,eth-clk-sel");
        u8 *syscfg;
        u32 value;
 
-       /* Gigabit Ethernet 125MHz clock selection. */
-       eth_clk_sel_reg = dev_read_bool(dev, "st,eth-clk-sel");
-
-       /* Ethernet 50Mhz RMII clock selection */
-       eth_ref_clk_sel_reg = dev_read_bool(dev, "st,eth-ref-clk-sel");
-
        syscfg = (u8 *)syscon_get_first_range(STM32MP_SYSCON_SYSCFG);
        if (!syscfg)
                return -ENODEV;
@@ -154,14 +150,14 @@ static int eqos_probe_syscfg_stm32(struct udevice *dev,
                dev_dbg(dev, "PHY_INTERFACE_MODE_GMII\n");
                value = FIELD_PREP(SYSCFG_PMCSETR_ETH_SEL_MASK,
                                   SYSCFG_PMCSETR_ETH_SEL_GMII_MII);
-               if (eth_clk_sel_reg)
+               if (eth_clk_sel)
                        value |= SYSCFG_PMCSETR_ETH_CLK_SEL;
                break;
        case PHY_INTERFACE_MODE_RMII:
                dev_dbg(dev, "PHY_INTERFACE_MODE_RMII\n");
                value = FIELD_PREP(SYSCFG_PMCSETR_ETH_SEL_MASK,
                                   SYSCFG_PMCSETR_ETH_SEL_RMII);
-               if (eth_ref_clk_sel_reg)
+               if (eth_ref_clk_sel)
                        value |= SYSCFG_PMCSETR_ETH_REF_CLK_SEL;
                break;
        case PHY_INTERFACE_MODE_RGMII:
@@ -171,7 +167,7 @@ static int eqos_probe_syscfg_stm32(struct udevice *dev,
                dev_dbg(dev, "PHY_INTERFACE_MODE_RGMII\n");
                value = FIELD_PREP(SYSCFG_PMCSETR_ETH_SEL_MASK,
                                   SYSCFG_PMCSETR_ETH_SEL_RGMII);
-               if (eth_clk_sel_reg)
+               if (eth_clk_sel)
                        value |= SYSCFG_PMCSETR_ETH_CLK_SEL;
                break;
        default:
-- 
2.43.0