add ax88772C AX88772C_eeprom_tools

hc

2024-05-10 61598093bbdd283a7edc367d900f223070ead8d2

 kernel/drivers/i2c/busses/i2c-sirf.c
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@@ -1,9 +1,8 @@
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+// SPDX-License-Identifier: GPL-2.0-or-later
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 /*
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  * I2C bus driver for CSR SiRFprimaII
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  *
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  * Copyright (c) 2011 Cambridge Silicon Radio Limited, a CSR plc group company.
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- *
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- * Licensed under GPLv2 or later.
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  */
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 #include <linux/interrupt.h>
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@@ -63,7 +62,6 @@
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 #define SIRFSOC_I2C_STOP		BIT(6)
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 #define SIRFSOC_I2C_START		BIT(7)
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-#define SIRFSOC_I2C_DEFAULT_SPEED 100000
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 #define SIRFSOC_I2C_ERR_NOACK      1
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 #define SIRFSOC_I2C_ERR_TIMEOUT    2
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@@ -273,7 +271,6 @@
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 {
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 	struct sirfsoc_i2c *siic;
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 	struct i2c_adapter *adap;
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-	struct resource *mem_res;
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 	struct clk *clk;
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 	int bitrate;
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 	int ctrl_speed;
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@@ -311,8 +308,7 @@
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 	adap = &siic->adapter;
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 	adap->class = I2C_CLASS_DEPRECATED;
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-	mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
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-	siic->base = devm_ioremap_resource(&pdev->dev, mem_res);
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+	siic->base = devm_platform_ioremap_resource(pdev, 0);
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 	if (IS_ERR(siic->base)) {
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 		err = PTR_ERR(siic->base);
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 		goto out;
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@@ -354,7 +350,7 @@
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 	err = of_property_read_u32(pdev->dev.of_node,
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 		"clock-frequency", &bitrate);
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 	if (err < 0)
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-		bitrate = SIRFSOC_I2C_DEFAULT_SPEED;
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+		bitrate = I2C_MAX_STANDARD_MODE_FREQ;
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 	/*
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 	 * Due to some hardware design issues, we need to tune the formula.
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@@ -474,6 +470,6 @@
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 module_platform_driver(i2c_sirfsoc_driver);
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 MODULE_DESCRIPTION("SiRF SoC I2C master controller driver");
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-MODULE_AUTHOR("Zhiwu Song <Zhiwu.Song@csr.com>, "
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-	"Xiangzhen Ye <Xiangzhen.Ye@csr.com>");
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+MODULE_AUTHOR("Zhiwu Song <Zhiwu.Song@csr.com>");
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+MODULE_AUTHOR("Xiangzhen Ye <Xiangzhen.Ye@csr.com>");
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 MODULE_LICENSE("GPL v2");