[PATCH 17/33] clk: stm32mp1: migrate trace to dev and log macro

From: Patrick Delaunay <patrick.delaunay@st.com>
To: u-boot@lists.denx.de
Subject: [PATCH 17/33] clk: stm32mp1: migrate trace to dev and log macro
Date: Wed, 14 Oct 2020 11:16:30 +0200	[thread overview]
Message-ID: <20201014091646.4233-18-patrick.delaunay@st.com> (raw)
In-Reply-To: <20201014091646.4233-1-patrick.delaunay@st.com>

Change debug and pr_ macro to dev 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>
---

 drivers/clk/clk_stm32mp1.c | 147 ++++++++++++++++++-------------------
 1 file changed, 71 insertions(+), 76 deletions(-)

diff --git a/drivers/clk/clk_stm32mp1.c b/drivers/clk/clk_stm32mp1.c
index c8840b9e5f..aca4db9946 100644
--- a/drivers/clk/clk_stm32mp1.c
+++ b/drivers/clk/clk_stm32mp1.c
@@ -3,6 +3,8 @@
  * Copyright (C) 2018, STMicroelectronics - All Rights Reserved
  */
 
+#define LOG_CATEGORY UCLASS_CLK
+
 #include <common.h>
 #include <clk-uclass.h>
 #include <div64.h>
@@ -14,12 +16,13 @@
 #include <syscon.h>
 #include <time.h>
 #include <vsprintf.h>
-#include <linux/bitops.h>
-#include <linux/io.h>
-#include <linux/iopoll.h>
 #include <asm/arch/sys_proto.h>
+#include <dm/device_compat.h>
 #include <dt-bindings/clock/stm32mp1-clks.h>
 #include <dt-bindings/clock/stm32mp1-clksrc.h>
+#include <linux/bitops.h>
+#include <linux/io.h>
+#include <linux/iopoll.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
@@ -781,7 +784,7 @@ static const struct stm32mp1_clk_data stm32mp1_data = {
 static ulong stm32mp1_clk_get_fixed(struct stm32mp1_clk_priv *priv, int idx)
 {
 	if (idx >= NB_OSC) {
-		debug("%s: clk id %d not found\n", __func__, idx);
+		log_debug("clk id %d not found\n", idx);
 		return 0;
 	}
 
@@ -799,7 +802,7 @@ static int stm32mp1_clk_get_id(struct stm32mp1_clk_priv *priv, unsigned long id)
 	}
 
 	if (i == nb_clks) {
-		printf("%s: clk id %d not found\n", __func__, (u32)id);
+		log_err("clk id %d not found\n", (u32)id);
 		return -EINVAL;
 	}
 
@@ -812,8 +815,7 @@ static int stm32mp1_clk_get_sel(struct stm32mp1_clk_priv *priv,
 	const struct stm32mp1_clk_gate *gate = priv->data->gate;
 
 	if (gate[i].sel > _PARENT_SEL_NB) {
-		printf("%s: parents for clk id %d not found\n",
-		       __func__, i);
+		log_err("parents for clk id %d not found\n", i);
 		return -EINVAL;
 	}
 
@@ -858,17 +860,14 @@ static int stm32mp1_clk_get_parent(struct stm32mp1_clk_priv *priv,
 	p = (readl(priv->base + sel[s].offset) >> sel[s].src) & sel[s].msk;
 
 	if (p < sel[s].nb_parent) {
-#ifdef DEBUG
-		debug("%s: %s clock is the parent %s of clk id %d\n", __func__,
-		      stm32mp1_clk_parent_name[sel[s].parent[p]],
-		      stm32mp1_clk_parent_sel_name[s],
-		      (u32)id);
-#endif
+		log_content("%s clock is the parent %s of clk id %d\n",
+			    stm32mp1_clk_parent_name[sel[s].parent[p]],
+			    stm32mp1_clk_parent_sel_name[s],
+			    (u32)id);
 		return sel[s].parent[p];
 	}
 
-	pr_err("%s: no parents defined for clk id %d\n",
-	       __func__, (u32)id);
+	log_err("no parents defined for clk id %d\n", (u32)id);
 
 	return -EINVAL;
 }
@@ -1124,7 +1123,7 @@ static ulong stm32mp1_clk_get(struct stm32mp1_clk_priv *priv, int p)
 		if (!uclass_get_device_by_name(UCLASS_CLK, "ck_dsi_phy",
 					       &dev)) {
 			if (clk_request(dev, &clk)) {
-				pr_err("ck_dsi_phy request");
+				log_err("ck_dsi_phy request");
 			} else {
 				clk.id = 0;
 				clock = clk_get_rate(&clk);
@@ -1136,8 +1135,7 @@ static ulong stm32mp1_clk_get(struct stm32mp1_clk_priv *priv, int p)
 		break;
 	}
 
-	debug("%s(%d) clock = %lx : %ld kHz\n",
-	      __func__, p, clock, clock / 1000);
+	log_debug("id=%d clock = %lx : %ld kHz\n", p, clock, clock / 1000);
 
 	return clock;
 }
@@ -1156,7 +1154,7 @@ static int stm32mp1_clk_enable(struct clk *clk)
 	else
 		setbits_le32(priv->base + gate[i].offset, BIT(gate[i].bit));
 
-	debug("%s: id clock %d has been enabled\n", __func__, (u32)clk->id);
+	dev_dbg(clk->dev, "%s: id clock %d has been enabled\n", __func__, (u32)clk->id);
 
 	return 0;
 }
@@ -1177,7 +1175,7 @@ static int stm32mp1_clk_disable(struct clk *clk)
 	else
 		clrbits_le32(priv->base + gate[i].offset, BIT(gate[i].bit));
 
-	debug("%s: id clock %d has been disabled\n", __func__, (u32)clk->id);
+	dev_dbg(clk->dev, "%s: id clock %d has been disabled\n", __func__, (u32)clk->id);
 
 	return 0;
 }
@@ -1193,10 +1191,9 @@ static ulong stm32mp1_clk_get_rate(struct clk *clk)
 
 	rate = stm32mp1_clk_get(priv, p);
 
-#ifdef DEBUG
-	debug("%s: computed rate for id clock %d is %d (parent is %s)\n",
-	      __func__, (u32)clk->id, (u32)rate, stm32mp1_clk_parent_name[p]);
-#endif
+	dev_vdbg(clk->dev, "computed rate for id clock %d is %d (parent is %s)\n",
+		 (u32)clk->id, (u32)rate, stm32mp1_clk_parent_name[p]);
+
 	return rate;
 }
 
@@ -1335,7 +1332,7 @@ static int stm32mp1_pll1_opp(struct stm32mp1_clk_priv *priv, int clksrc,
 
 	ret = stm32mp1_get_max_opp_freq(priv, &output_freq);
 	if (ret) {
-		debug("PLL1 OPP configuration not found (%d).\n", ret);
+		log_debug("PLL1 OPP configuration not found (%d).\n", ret);
 		return ret;
 	}
 
@@ -1440,8 +1437,8 @@ static int stm32mp1_osc_wait(int enable, fdt_addr_t rcc, u32 offset,
 				 TIMEOUT_1S);
 
 	if (ret)
-		pr_err("OSC %x @ %x timeout for enable=%d : 0x%x\n",
-		       mask_rdy, address, enable, readl(address));
+		log_err("OSC %x @ %x timeout for enable=%d : 0x%x\n",
+			mask_rdy, address, enable, readl(address));
 
 	return ret;
 }
@@ -1529,8 +1526,8 @@ static int stm32mp1_set_hsidiv(fdt_addr_t rcc, u8 hsidiv)
 				 val & RCC_OCRDYR_HSIDIVRDY,
 				 TIMEOUT_200MS);
 	if (ret)
-		pr_err("HSIDIV failed @ 0x%x: 0x%x\n",
-		       address, readl(address));
+		log_err("HSIDIV failed @ 0x%x: 0x%x\n",
+			address, readl(address));
 
 	return ret;
 }
@@ -1546,7 +1543,7 @@ static int stm32mp1_hsidiv(fdt_addr_t rcc, ulong hsifreq)
 			break;
 
 	if (hsidiv == 4) {
-		pr_err("clk-hsi frequency invalid");
+		log_err("clk-hsi frequency invalid");
 		return -1;
 	}
 
@@ -1577,8 +1574,8 @@ static int pll_output(struct stm32mp1_clk_priv *priv, int pll_id, int output)
 				 TIMEOUT_200MS);
 
 	if (ret) {
-		pr_err("PLL%d start failed @ 0x%x: 0x%x\n",
-		       pll_id, pllxcr, readl(pllxcr));
+		log_err("PLL%d start failed @ 0x%x: 0x%x\n",
+			pll_id, pllxcr, readl(pllxcr));
 		return ret;
 	}
 
@@ -1640,7 +1637,7 @@ static int pll_config(struct stm32mp1_clk_priv *priv, int pll_id,
 
 	if (refclk < (stm32mp1_pll[type].refclk_min * 1000000) ||
 	    refclk > (stm32mp1_pll[type].refclk_max * 1000000)) {
-		debug("invalid refclk = %x\n", (u32)refclk);
+		log_err("invalid refclk = %x\n", (u32)refclk);
 		return -EINVAL;
 	}
 	if (type == PLL_800 && refclk >= 8000000)
@@ -1736,7 +1733,7 @@ static  __maybe_unused int pll_set_rate(struct udevice *dev,
 	divn = (value >> 13) - 1;
 	if (divn < DIVN_MIN ||
 	    divn > stm32mp1_pll[type].divn_max) {
-		pr_err("divn invalid = %d", divn);
+		dev_err(dev, "divn invalid = %d", divn);
 		return -EINVAL;
 	}
 	fracv = value - ((divn + 1) << 13);
@@ -1761,8 +1758,8 @@ static int set_clksrc(struct stm32mp1_clk_priv *priv, unsigned int clksrc)
 	ret = readl_poll_timeout(address, val, val & RCC_SELR_SRCRDY,
 				 TIMEOUT_200MS);
 	if (ret)
-		pr_err("CLKSRC %x start failed @ 0x%x: 0x%x\n",
-		       clksrc, address, readl(address));
+		log_err("CLKSRC %x start failed @ 0x%x: 0x%x\n",
+			clksrc, address, readl(address));
 
 	return ret;
 }
@@ -1781,7 +1778,7 @@ static void stgen_config(struct stm32mp1_clk_priv *priv)
 	if (cntfid0 != rate) {
 		u64 counter;
 
-		pr_debug("System Generic Counter (STGEN) update\n");
+		log_debug("System Generic Counter (STGEN) update\n");
 		clrbits_le32(stgenc + STGENC_CNTCR, STGENC_CNTCR_EN);
 		counter = (u64)readl(stgenc + STGENC_CNTCVL);
 		counter |= ((u64)(readl(stgenc + STGENC_CNTCVU))) << 32;
@@ -1807,8 +1804,8 @@ static int set_clkdiv(unsigned int clkdiv, u32 address)
 	ret = readl_poll_timeout(address, val, val & RCC_DIVR_DIVRDY,
 				 TIMEOUT_200MS);
 	if (ret)
-		pr_err("CLKDIV %x start failed @ 0x%x: 0x%x\n",
-		       clkdiv, address, readl(address));
+		log_err("CLKDIV %x start failed @ 0x%x: 0x%x\n",
+			clkdiv, address, readl(address));
 
 	return ret;
 }
@@ -1891,13 +1888,13 @@ static int stm32mp1_clktree(struct udevice *dev)
 	/* check mandatory field */
 	ret = dev_read_u32_array(dev, "st,clksrc", clksrc, CLKSRC_NB);
 	if (ret < 0) {
-		debug("field st,clksrc invalid: error %d\n", ret);
+		dev_dbg(dev, "field st,clksrc invalid: error %d\n", ret);
 		return -FDT_ERR_NOTFOUND;
 	}
 
 	ret = dev_read_u32_array(dev, "st,clkdiv", clkdiv, CLKDIV_NB);
 	if (ret < 0) {
-		debug("field st,clkdiv invalid: error %d\n", ret);
+		dev_dbg(dev, "field st,clkdiv invalid: error %d\n", ret);
 		return -FDT_ERR_NOTFOUND;
 	}
 
@@ -1911,11 +1908,11 @@ static int stm32mp1_clktree(struct udevice *dev)
 		pllcfg_valid[i] = ofnode_valid(node);
 		pllcsg_set[i] = false;
 		if (pllcfg_valid[i]) {
-			debug("DT for PLL %d @ %s\n", i, name);
+			dev_dbg(dev, "DT for PLL %d @ %s\n", i, name);
 			ret = ofnode_read_u32_array(node, "cfg",
 						    pllcfg[i], PLLCFG_NB);
 			if (ret < 0) {
-				debug("field cfg invalid: error %d\n", ret);
+				dev_dbg(dev, "field cfg invalid: error %d\n", ret);
 				return -FDT_ERR_NOTFOUND;
 			}
 			pllfracv[i] = ofnode_read_u32_default(node, "frac", 0);
@@ -1925,30 +1922,30 @@ static int stm32mp1_clktree(struct udevice *dev)
 			if (!ret) {
 				pllcsg_set[i] = true;
 			} else if (ret != -FDT_ERR_NOTFOUND) {
-				debug("invalid csg node for pll@%d res=%d\n",
-				      i, ret);
+				dev_dbg(dev, "invalid csg node for pll@%d res=%d\n",
+					i, ret);
 				return ret;
 			}
 		} else if (i == _PLL1)	{
 			/* use OPP for PLL1 for A7 CPU */
-			debug("DT for PLL %d with OPP\n", i);
+			dev_dbg(dev, "DT for PLL %d with OPP\n", i);
 			ret = stm32mp1_pll1_opp(priv,
 						clksrc[CLKSRC_PLL12],
 						pllcfg[i],
 						&pllfracv[i]);
 			if (ret) {
-				debug("PLL %d with OPP error = %d\n", i, ret);
+				dev_dbg(dev, "PLL %d with OPP error = %d\n", i, ret);
 				return ret;
 			}
 			pllcfg_valid[i] = true;
 		}
 	}
 
-	debug("configuration MCO\n");
+	dev_dbg(dev, "configuration MCO\n");
 	stm32mp1_mco_csg(priv, clksrc[CLKSRC_MCO1], clkdiv[CLKDIV_MCO1]);
 	stm32mp1_mco_csg(priv, clksrc[CLKSRC_MCO2], clkdiv[CLKDIV_MCO2]);
 
-	debug("switch ON osillator\n");
+	dev_dbg(dev, "switch ON osillator\n");
 	/*
 	 * switch ON oscillator found in device-tree,
 	 * HSI already ON after bootrom
@@ -1986,24 +1983,24 @@ static int stm32mp1_clktree(struct udevice *dev)
 	stm32mp1_csi_set(rcc, 1);
 
 	/* come back to HSI */
-	debug("come back to HSI\n");
+	dev_dbg(dev, "come back to HSI\n");
 	set_clksrc(priv, CLK_MPU_HSI);
 	set_clksrc(priv, CLK_AXI_HSI);
 	set_clksrc(priv, CLK_MCU_HSI);
 
-	debug("pll stop\n");
+	dev_dbg(dev, "pll stop\n");
 	for (i = 0; i < _PLL_NB; i++)
 		pll_stop(priv, i);
 
 	/* configure HSIDIV */
-	debug("configure HSIDIV\n");
+	dev_dbg(dev, "configure HSIDIV\n");
 	if (priv->osc[_HSI]) {
 		stm32mp1_hsidiv(rcc, priv->osc[_HSI]);
 		stgen_config(priv);
 	}
 
 	/* select DIV */
-	debug("select DIV\n");
+	dev_dbg(dev, "select DIV\n");
 	/* no ready bit when MPUSRC != CLK_MPU_PLL1P_DIV, MPUDIV is disabled */
 	writel(clkdiv[CLKDIV_MPU] & RCC_DIVR_DIV_MASK, rcc + RCC_MPCKDIVR);
 	set_clkdiv(clkdiv[CLKDIV_AXI], rcc + RCC_AXIDIVR);
@@ -2018,17 +2015,17 @@ static int stm32mp1_clktree(struct udevice *dev)
 	writel(clkdiv[CLKDIV_RTC] & RCC_DIVR_DIV_MASK, rcc + RCC_RTCDIVR);
 
 	/* configure PLLs source */
-	debug("configure PLLs source\n");
+	dev_dbg(dev, "configure PLLs source\n");
 	set_clksrc(priv, clksrc[CLKSRC_PLL12]);
 	set_clksrc(priv, clksrc[CLKSRC_PLL3]);
 	set_clksrc(priv, clksrc[CLKSRC_PLL4]);
 
 	/* configure and start PLLs */
-	debug("configure PLLs\n");
+	dev_dbg(dev, "configure PLLs\n");
 	for (i = 0; i < _PLL_NB; i++) {
 		if (!pllcfg_valid[i])
 			continue;
-		debug("configure PLL %d\n", i);
+		dev_dbg(dev, "configure PLL %d\n", i);
 		pll_config(priv, i, pllcfg[i], pllfracv[i]);
 		if (pllcsg_set[i])
 			pll_csg(priv, i, pllcsg[i]);
@@ -2039,7 +2036,7 @@ static int stm32mp1_clktree(struct udevice *dev)
 	for (i = 0; i < _PLL_NB; i++) {
 		if (!pllcfg_valid[i])
 			continue;
-		debug("output PLL %d\n", i);
+		dev_dbg(dev, "output PLL %d\n", i);
 		pll_output(priv, i, pllcfg[i][PLLCFG_O]);
 	}
 
@@ -2048,14 +2045,14 @@ static int stm32mp1_clktree(struct udevice *dev)
 		stm32mp1_lse_wait(rcc);
 
 	/* configure with expected clock source */
-	debug("CLKSRC\n");
+	dev_dbg(dev, "CLKSRC\n");
 	set_clksrc(priv, clksrc[CLKSRC_MPU]);
 	set_clksrc(priv, clksrc[CLKSRC_AXI]);
 	set_clksrc(priv, clksrc[CLKSRC_MCU]);
 	set_rtcsrc(priv, clksrc[CLKSRC_RTC], lse_css);
 
 	/* configure PKCK */
-	debug("PKCK\n");
+	dev_dbg(dev, "PKCK\n");
 	pkcs_cell = dev_read_prop(dev, "st,pkcs", &len);
 	if (pkcs_cell) {
 		bool ckper_disabled = false;
@@ -2081,7 +2078,7 @@ static int stm32mp1_clktree(struct udevice *dev)
 	/* STGEN clock source can change with CLK_STGEN_XXX */
 	stgen_config(priv);
 
-	debug("oscillator off\n");
+	dev_dbg(dev, "oscillator off\n");
 	/* switch OFF HSI if not found in device-tree */
 	if (!priv->osc[_HSI])
 		stm32mp1_hsi_set(rcc, 0);
@@ -2147,14 +2144,12 @@ static ulong stm32mp1_clk_set_rate(struct clk *clk, unsigned long clk_rate)
 	case DSI_PX:
 		break;
 	default:
-		pr_err("not supported");
+		dev_err(clk->dev, "Set of clk %ld not supported", clk->id);
 		return -EINVAL;
 	}
 
 	p = stm32mp1_clk_get_parent(priv, clk->id);
-#ifdef DEBUG
-	debug("%s: parent = %d:%s\n", __func__, p, stm32mp1_clk_parent_name[p]);
-#endif
+	dev_vdbg(clk->dev, "parent = %d:%s\n", p, stm32mp1_clk_parent_name[p]);
 	if (p < 0)
 		return -EINVAL;
 
@@ -2192,7 +2187,7 @@ static void stm32mp1_osc_clk_init(const char *name,
 	clk.id = 0;
 	if (!uclass_get_device_by_name(UCLASS_CLK, name, &dev)) {
 		if (clk_request(dev, &clk))
-			pr_err("%s request", name);
+			log_err("%s request", name);
 		else
 			priv->osc[index] = clk_get_rate(&clk);
 	}
@@ -2214,7 +2209,7 @@ static void stm32mp1_osc_init(struct udevice *dev)
 
 	for (i = 0; i < NB_OSC; i++) {
 		stm32mp1_osc_clk_init(name[i], priv, i);
-		debug("%d: %s => %x\n", i, name[i], (u32)priv->osc[i]);
+		dev_dbg(dev, "%d: %s => %x\n", i, name[i], (u32)priv->osc[i]);
 	}
 }
 
@@ -2288,11 +2283,11 @@ static int stm32mp1_clk_probe(struct udevice *dev)
 	if (!(gd->flags & GD_FLG_RELOC))
 		result = stm32mp1_clktree(dev);
 	if (result)
-		printf("clock tree initialization failed (%d)\n", result);
+		dev_err(dev, "clock tree initialization failed (%d)\n", result);
 #endif
 
 #ifndef CONFIG_SPL_BUILD
-#if defined(DEBUG)
+#if defined(VERBOSE_DEBUG)
 	/* display debug information for probe after relocation */
 	if (gd->flags & GD_FLG_RELOC)
 		stm32mp1_clk_dump(priv);
@@ -2306,14 +2301,14 @@ static int stm32mp1_clk_probe(struct udevice *dev)
 	if (gd->flags & GD_FLG_RELOC) {
 		char buf[32];
 
-		printf("Clocks:\n");
-		printf("- MPU : %s MHz\n", strmhz(buf, gd->cpu_clk));
-		printf("- MCU : %s MHz\n",
-		       strmhz(buf, stm32mp1_clk_get(priv, _CK_MCU)));
-		printf("- AXI : %s MHz\n", strmhz(buf, gd->bus_clk));
-		printf("- PER : %s MHz\n",
-		       strmhz(buf, stm32mp1_clk_get(priv, _CK_PER)));
-		printf("- DDR : %s MHz\n", strmhz(buf, gd->mem_clk));
+		log_info("Clocks:\n");
+		log_info("- MPU : %s MHz\n", strmhz(buf, gd->cpu_clk));
+		log_info("- MCU : %s MHz\n",
+			 strmhz(buf, stm32mp1_clk_get(priv, _CK_MCU)));
+		log_info("- AXI : %s MHz\n", strmhz(buf, gd->bus_clk));
+		log_info("- PER : %s MHz\n",
+			 strmhz(buf, stm32mp1_clk_get(priv, _CK_PER)));
+		log_info("- DDR : %s MHz\n", strmhz(buf, gd->mem_clk));
 	}
 #endif /* CONFIG_DISPLAY_CPUINFO */
 #endif
-- 
2.17.1
