add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/drivers/gpio/gpio-madera.c
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@@ -1,12 +1,8 @@
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-// SPDX-License-Identifier: GPL-2.0
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+// SPDX-License-Identifier: GPL-2.0-only
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 /*
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  * GPIO support for Cirrus Logic Madera codecs
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  *
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  * Copyright (C) 2015-2018 Cirrus Logic
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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 the
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- * Free Software Foundation; version 2.
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  */
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 #include <linux/gpio/driver.h>
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@@ -38,7 +34,10 @@
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 	if (ret < 0)
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 		return ret;
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-	return !!(val & MADERA_GP1_DIR_MASK);
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+	if (val & MADERA_GP1_DIR_MASK)
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+		return GPIO_LINE_DIRECTION_IN;
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+
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+	return GPIO_LINE_DIRECTION_OUT;
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 }
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 static int madera_gpio_direction_in(struct gpio_chip *chip, unsigned int offset)
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@@ -107,7 +106,7 @@
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 			 MADERA_GPIO1_CTRL_1 + reg_offset, ret);
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 }
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-static struct gpio_chip madera_gpio_chip = {
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+static const struct gpio_chip madera_gpio_chip = {
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 	.label			= "madera",
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 	.owner			= THIS_MODULE,
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 	.request		= gpiochip_generic_request,
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@@ -124,7 +123,7 @@
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 static int madera_gpio_probe(struct platform_device *pdev)
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 {
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 	struct madera *madera = dev_get_drvdata(pdev->dev.parent);
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-	struct madera_pdata *pdata = dev_get_platdata(madera->dev);
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+	struct madera_pdata *pdata = &madera->pdata;
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 	struct madera_gpio *madera_gpio;
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 	int ret;
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@@ -140,6 +139,9 @@
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 	madera_gpio->gpio_chip.parent = pdev->dev.parent;
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 	switch (madera->type) {
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+	case CS47L15:
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+		madera_gpio->gpio_chip.ngpio = CS47L15_NUM_GPIOS;
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+		break;
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 	case CS47L35:
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 		madera_gpio->gpio_chip.ngpio = CS47L35_NUM_GPIOS;
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 		break;
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@@ -151,13 +153,18 @@
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 	case CS47L91:
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 		madera_gpio->gpio_chip.ngpio = CS47L90_NUM_GPIOS;
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 		break;
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+	case CS42L92:
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+	case CS47L92:
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+	case CS47L93:
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+		madera_gpio->gpio_chip.ngpio = CS47L92_NUM_GPIOS;
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+		break;
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 	default:
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 		dev_err(&pdev->dev, "Unknown chip variant %d\n", madera->type);
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 		return -EINVAL;
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 	}
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 	/* We want to be usable on systems that don't use devicetree or acpi */
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-	if (pdata && pdata->gpio_base)
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+	if (pdata->gpio_base)
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 		madera_gpio->gpio_chip.base = pdata->gpio_base;
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 	else
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 		madera_gpio->gpio_chip.base = -1;