add wifi6 8852be driver

hc

2024-12-19 9370bb92b2d16684ee45cf24e879c93c509162da

 kernel/drivers/mtd/nand/raw/plat_nand.c
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@@ -1,12 +1,8 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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 /*
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  * Generic NAND driver
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  *
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  * Author: Vitaly Wool <vitalywool@gmail.com>
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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 version 2 as
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- * published by the Free Software Foundation.
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- *
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  */
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7
 
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 #include <linux/err.h>
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@@ -15,12 +11,25 @@
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 #include <linux/platform_device.h>
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 #include <linux/slab.h>
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 #include <linux/mtd/mtd.h>
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-#include <linux/mtd/rawnand.h>
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-#include <linux/mtd/partitions.h>
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+#include <linux/mtd/platnand.h>
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15
 
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 struct plat_nand_data {
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+	struct nand_controller	controller;
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 	struct nand_chip	chip;
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 	void __iomem		*io_base;
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+};
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+
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+static int plat_nand_attach_chip(struct nand_chip *chip)
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+{
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+	if (chip->ecc.engine_type == NAND_ECC_ENGINE_TYPE_SOFT &&
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+	    chip->ecc.algo == NAND_ECC_ALGO_UNKNOWN)
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+		chip->ecc.algo = NAND_ECC_ALGO_HAMMING;
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+
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+	return 0;
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+}
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+
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+static const struct nand_controller_ops plat_nand_ops = {
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+	.attach_chip = plat_nand_attach_chip,
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 };
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 /*
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@@ -51,6 +60,10 @@
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 	if (!data)
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 		return -ENOMEM;
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62
 
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+	data->controller.ops = &plat_nand_ops;
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+	nand_controller_init(&data->controller);
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+	data->chip.controller = &data->controller;
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+
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 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
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 	data->io_base = devm_ioremap_resource(&pdev->dev, res);
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 	if (IS_ERR(data->io_base))
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@@ -60,19 +73,16 @@
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 	mtd = nand_to_mtd(&data->chip);
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 	mtd->dev.parent = &pdev->dev;
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-	data->chip.IO_ADDR_R = data->io_base;
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-	data->chip.IO_ADDR_W = data->io_base;
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-	data->chip.cmd_ctrl = pdata->ctrl.cmd_ctrl;
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-	data->chip.dev_ready = pdata->ctrl.dev_ready;
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-	data->chip.select_chip = pdata->ctrl.select_chip;
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-	data->chip.write_buf = pdata->ctrl.write_buf;
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-	data->chip.read_buf = pdata->ctrl.read_buf;
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-	data->chip.chip_delay = pdata->chip.chip_delay;
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+	data->chip.legacy.IO_ADDR_R = data->io_base;
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+	data->chip.legacy.IO_ADDR_W = data->io_base;
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+	data->chip.legacy.cmd_ctrl = pdata->ctrl.cmd_ctrl;
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+	data->chip.legacy.dev_ready = pdata->ctrl.dev_ready;
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+	data->chip.legacy.select_chip = pdata->ctrl.select_chip;
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+	data->chip.legacy.write_buf = pdata->ctrl.write_buf;
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+	data->chip.legacy.read_buf = pdata->ctrl.read_buf;
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+	data->chip.legacy.chip_delay = pdata->chip.chip_delay;
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 	data->chip.options |= pdata->chip.options;
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 	data->chip.bbt_options |= pdata->chip.bbt_options;
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-
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-	data->chip.ecc.mode = NAND_ECC_SOFT;
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-	data->chip.ecc.algo = NAND_ECC_HAMMING;
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86
 
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 	platform_set_drvdata(pdev, data);
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..
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@@ -82,6 +92,13 @@
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 		if (err)
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 			goto out;
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 	}
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+
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+	/*
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+	 * This driver assumes that the default ECC engine should be TYPE_SOFT.
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+	 * Set ->engine_type before registering the NAND devices in order to
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+	 * provide a driver specific default value.
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+	 */
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+	data->chip.ecc.engine_type = NAND_ECC_ENGINE_TYPE_SOFT;
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 	/* Scan to find existence of the device */
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 	err = nand_scan(&data->chip, pdata->chip.nr_chips);
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@@ -111,8 +128,12 @@
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 {
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 	struct plat_nand_data *data = platform_get_drvdata(pdev);
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 	struct platform_nand_data *pdata = dev_get_platdata(&pdev->dev);
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+	struct nand_chip *chip = &data->chip;
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+	int ret;
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-	nand_release(&data->chip);
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+	ret = mtd_device_unregister(nand_to_mtd(chip));
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+	WARN_ON(ret);
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+	nand_cleanup(chip);
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 	if (pdata->ctrl.remove)
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 		pdata->ctrl.remove(pdev);
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