phy: stm32-usbphyc: migrate trace to dev and log macro

Change pr_debug to log_debug or dev_dbg macro and define LOG_CATEGORY.

Remove the "%s:" __func__  header as it is managed by dev macro
(dev->name is displayed) or log macro (CONFIG_LOGF_FUNC).

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
diff --git a/drivers/phy/phy-stm32-usbphyc.c b/drivers/phy/phy-stm32-usbphyc.c
index f23aef4..02d859a 100644
--- a/drivers/phy/phy-stm32-usbphyc.c
+++ b/drivers/phy/phy-stm32-usbphyc.c
@@ -3,6 +3,8 @@
  * Copyright (C) 2018, STMicroelectronics - All Rights Reserved
  */
 
+#define LOG_CATEGORY UCLASS_PHY
+
 #include <common.h>
 #include <clk.h>
 #include <div64.h>
@@ -98,8 +100,8 @@
 	u32 usbphyc_pll;
 
 	if ((clk_rate < PLL_INFF_MIN_RATE) || (clk_rate > PLL_INFF_MAX_RATE)) {
-		pr_debug("%s: input clk freq (%dHz) out of range\n",
-			 __func__, clk_rate);
+		log_debug("input clk freq (%dHz) out of range\n",
+			  clk_rate);
 		return -EINVAL;
 	}
 
@@ -116,8 +118,8 @@
 
 	writel(usbphyc_pll, usbphyc->base + STM32_USBPHYC_PLL);
 
-	pr_debug("%s: input clk freq=%dHz, ndiv=%d, frac=%d\n", __func__,
-		 clk_rate, pll_params.ndiv, pll_params.frac);
+	log_debug("input clk freq=%dHz, ndiv=%d, frac=%d\n",
+		  clk_rate, pll_params.ndiv, pll_params.frac);
 
 	return 0;
 }
@@ -154,7 +156,7 @@
 		     true : false;
 	int ret;
 
-	pr_debug("%s phy ID = %lu\n", __func__, phy->id);
+	dev_dbg(phy->dev, "phy ID = %lu\n", phy->id);
 	/* Check if one phy port has already configured the pll */
 	if (pllen && stm32_usbphyc_is_init(usbphyc))
 		goto initialized;
@@ -200,7 +202,7 @@
 	struct stm32_usbphyc_phy *usbphyc_phy = usbphyc->phys + phy->id;
 	int ret;
 
-	pr_debug("%s phy ID = %lu\n", __func__, phy->id);
+	dev_dbg(phy->dev, "phy ID = %lu\n", phy->id);
 	usbphyc_phy->init = false;
 
 	/* Check if other phy port requires pllen */
@@ -239,7 +241,7 @@
 	struct stm32_usbphyc_phy *usbphyc_phy = usbphyc->phys + phy->id;
 	int ret;
 
-	pr_debug("%s phy ID = %lu\n", __func__, phy->id);
+	dev_dbg(phy->dev, "phy ID = %lu\n", phy->id);
 	if (usbphyc_phy->vdd) {
 		ret = regulator_set_enable(usbphyc_phy->vdd, true);
 		if (ret)
@@ -262,7 +264,7 @@
 	struct stm32_usbphyc_phy *usbphyc_phy = usbphyc->phys + phy->id;
 	int ret;
 
-	pr_debug("%s phy ID = %lu\n", __func__, phy->id);
+	dev_dbg(phy->dev, "phy ID = %lu\n", phy->id);
 	usbphyc_phy->powered = false;
 
 	if (stm32_usbphyc_is_powered(usbphyc))