openwrt/target/linux/airoha/patches-6.6/106-06-clk-en7523-map-io-region-in-a-single-block.patch

From 665a59f4836c3d7813a9d8bfb9680d93adb4626e Mon Sep 17 00:00:00 2001
From: Lorenzo Bianconi <lorenzo@kernel.org>
Date: Tue, 3 Sep 2024 23:39:51 +0200
Subject: [PATCH 6/6] clk: en7523: map io region in a single block

Map all clock-controller memory region in a single block.
This patch does not introduce any backward incompatibility since the dts
for EN7581 SoC is not upstream yet.

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
---
 drivers/clk/clk-en7523.c | 32 +++++++++++++-------------------
 1 file changed, 13 insertions(+), 19 deletions(-)

--- a/drivers/clk/clk-en7523.c
+++ b/drivers/clk/clk-en7523.c
@@ -39,8 +39,8 @@
 #define REG_PCIE_XSI1_SEL_MASK		GENMASK(12, 11)
 #define REG_CRYPTO_CLKSRC2		0x20c
 
-#define REG_RST_CTRL2			0x00
-#define REG_RST_CTRL1			0x04
+#define REG_RST_CTRL2			0x830
+#define REG_RST_CTRL1			0x834
 
 struct en_clk_desc {
 	int id;
@@ -645,15 +645,9 @@ static const struct reset_control_ops en
 	.status = en7523_reset_status,
 };
 
-static int en7581_reset_register(struct platform_device *pdev)
+static int en7581_reset_register(struct device *dev, void __iomem *base)
 {
-	struct device *dev = &pdev->dev;
 	struct en_rst_data *rst_data;
-	void __iomem *base;
-
-	base = devm_platform_ioremap_resource(pdev, 1);
-	if (IS_ERR(base))
-		return PTR_ERR(base);
 
 	rst_data = devm_kzalloc(dev, sizeof(*rst_data), GFP_KERNEL);
 	if (!rst_data)
@@ -677,27 +671,27 @@ static int en7581_reset_register(struct
 static int en7581_clk_hw_init(struct platform_device *pdev,
 			      struct clk_hw_onecell_data *clk_data)
 {
-	void __iomem *np_base;
 	struct regmap *map;
+	void __iomem *base;
 	u32 val;
 
 	map = syscon_regmap_lookup_by_compatible("airoha,en7581-chip-scu");
 	if (IS_ERR(map))
 		return PTR_ERR(map);
 
-	np_base = devm_platform_ioremap_resource(pdev, 0);
-	if (IS_ERR(np_base))
-		return PTR_ERR(np_base);
+	base = devm_platform_ioremap_resource(pdev, 0);
+	if (IS_ERR(base))
+		return PTR_ERR(base);
 
-	en7581_register_clocks(&pdev->dev, clk_data, map, np_base);
+	en7581_register_clocks(&pdev->dev, clk_data, map, base);
 
-	val = readl(np_base + REG_NP_SCU_SSTR);
+	val = readl(base + REG_NP_SCU_SSTR);
 	val &= ~(REG_PCIE_XSI0_SEL_MASK | REG_PCIE_XSI1_SEL_MASK);
-	writel(val, np_base + REG_NP_SCU_SSTR);
-	val = readl(np_base + REG_NP_SCU_PCIC);
-	writel(val | 3, np_base + REG_NP_SCU_PCIC);
+	writel(val, base + REG_NP_SCU_SSTR);
+	val = readl(base + REG_NP_SCU_PCIC);
+	writel(val | 3, base + REG_NP_SCU_PCIC);
 
-	return en7581_reset_register(pdev);
+	return en7581_reset_register(&pdev->dev, base);
 }
 
 static int en7523_clk_probe(struct platform_device *pdev)