add ax88772C AX88772C_eeprom_tools

hc

2024-05-10 61598093bbdd283a7edc367d900f223070ead8d2

 kernel/drivers/i2c/busses/i2c-hix5hd2.c
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@@ -1,11 +1,7 @@
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+// SPDX-License-Identifier: GPL-2.0-or-later
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 /*
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  * Copyright (c) 2014 Linaro Ltd.
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  * Copyright (c) 2014 Hisilicon Limited.
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- *
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- * This program is free software; you can redistribute it and/or modify
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- * it under the terms of the GNU General Public License as published by
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- * the Free Software Foundation; either version 2 of the License, or
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- * (at your option) any later version.
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  *
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  * Now only support 7 bit address.
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  */
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@@ -71,8 +67,6 @@
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 #define I2C_ACK_INTR		BIT(2)
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 #define I2C_ARBITRATE_INTR	BIT(1)
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 #define I2C_OVER_INTR		BIT(0)
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-
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-#define HIX5I2C_MAX_FREQ	400000		/* 400k */
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70
 
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 enum hix5hd2_i2c_state {
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 	HIX5I2C_STAT_RW_ERR = -1,
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@@ -394,7 +388,6 @@
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 {
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 	struct device_node *np = pdev->dev.of_node;
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 	struct hix5hd2_i2c_priv *priv;
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-	struct resource *mem;
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 	unsigned int freq;
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 	int irq, ret;
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393
 
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@@ -404,27 +397,24 @@
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 	if (of_property_read_u32(np, "clock-frequency", &freq)) {
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 		/* use 100k as default value */
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-		priv->freq = 100000;
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+		priv->freq = I2C_MAX_STANDARD_MODE_FREQ;
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 	} else {
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-		if (freq > HIX5I2C_MAX_FREQ) {
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-			priv->freq = HIX5I2C_MAX_FREQ;
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+		if (freq > I2C_MAX_FAST_MODE_FREQ) {
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+			priv->freq = I2C_MAX_FAST_MODE_FREQ;
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 			dev_warn(priv->dev, "use max freq %d instead\n",
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-				 HIX5I2C_MAX_FREQ);
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+				 I2C_MAX_FAST_MODE_FREQ);
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 		} else {
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 			priv->freq = freq;
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 		}
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 	}
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-	mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
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-	priv->regs = devm_ioremap_resource(&pdev->dev, mem);
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+	priv->regs = devm_platform_ioremap_resource(pdev, 0);
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 	if (IS_ERR(priv->regs))
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 		return PTR_ERR(priv->regs);
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 	irq = platform_get_irq(pdev, 0);
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-	if (irq <= 0) {
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-		dev_err(&pdev->dev, "cannot find HS-I2C IRQ\n");
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+	if (irq < 0)
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 		return irq;
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-	}
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 	priv->clk = devm_clk_get(&pdev->dev, NULL);
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 	if (IS_ERR(priv->clk)) {
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@@ -449,8 +439,7 @@
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 	hix5hd2_i2c_init(priv);
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 	ret = devm_request_irq(&pdev->dev, irq, hix5hd2_i2c_irq,
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-			       IRQF_NO_SUSPEND | IRQF_ONESHOT,
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-			       dev_name(&pdev->dev), priv);
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+			       IRQF_NO_SUSPEND, dev_name(&pdev->dev), priv);
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 	if (ret != 0) {
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 		dev_err(&pdev->dev, "cannot request HS-I2C IRQ %d\n", irq);
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 		goto err_clk;