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2023-12-09 b22da3d8526a935aa31e086e63f60ff3246cb61c

 kernel/drivers/power/supply/isp1704_charger.c
..
..
@@ -1,22 +1,9 @@
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+// SPDX-License-Identifier: GPL-2.0-or-later
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 /*
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  * ISP1704 USB Charger Detection driver
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  *
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  * Copyright (C) 2010 Nokia Corporation
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- * Copyright (C) 2012 - 2013 Pali Rohár <pali.rohar@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 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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- * This program is distributed in the hope that it will be useful,
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- * but WITHOUT ANY WARRANTY; without even the implied warranty of
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- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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- * GNU General Public License for more details.
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- *
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- * You should have received a copy of the GNU General Public License
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- * along with this program; if not, write to the Free Software
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- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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+ * Copyright (C) 2012 - 2013 Pali Rohár <pali@kernel.org>
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  */
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8
 
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 #include <linux/kernel.h>
..
..
@@ -30,13 +17,12 @@
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 #include <linux/power_supply.h>
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 #include <linux/delay.h>
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 #include <linux/of.h>
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-#include <linux/of_gpio.h>
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20
 
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+#include <linux/gpio/consumer.h>
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 #include <linux/usb/otg.h>
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 #include <linux/usb/ulpi.h>
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 #include <linux/usb/ch9.h>
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 #include <linux/usb/gadget.h>
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-#include <linux/power/isp1704_charger.h>
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26
 
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 /* Vendor specific Power Control register */
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 #define ISP1704_PWR_CTRL		0x3d
..
..
@@ -60,6 +46,7 @@
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 	struct device			*dev;
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 	struct power_supply		*psy;
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 	struct power_supply_desc	psy_desc;
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+	struct gpio_desc		*enable_gpio;
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 	struct usb_phy			*phy;
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 	struct notifier_block		nb;
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 	struct work_struct		work;
..
..
@@ -81,18 +68,9 @@
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 	return usb_phy_io_write(isp->phy, val, reg);
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 }
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70
 
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-/*
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- * Disable/enable the power from the isp1704 if a function for it
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- * has been provided with platform data.
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- */
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 static void isp1704_charger_set_power(struct isp1704_charger *isp, bool on)
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 {
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-	struct isp1704_charger_data	*board = isp->dev->platform_data;
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-
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-	if (board && board->set_power)
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-		board->set_power(on);
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-	else if (board)
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-		gpio_set_value(board->enable_gpio, on);
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+	gpiod_set_value(isp->enable_gpio, on);
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 }
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75
 
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 /*
..
..
@@ -364,7 +342,7 @@
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342
 	int vendor;
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343
 	int product;
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 	int i;
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-	int ret = -ENODEV;
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+	int ret;
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346
 
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 	/* Test ULPI interface */
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 	ret = isp1704_write(isp, ULPI_SCRATCH, 0xaa);
..
..
@@ -405,46 +383,19 @@
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 	int			ret = -ENODEV;
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 	struct power_supply_config psy_cfg = {};
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385
 
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-	struct isp1704_charger_data *pdata = dev_get_platdata(&pdev->dev);
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-	struct device_node *np = pdev->dev.of_node;
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-
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-	if (np) {
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-		int gpio = of_get_named_gpio(np, "nxp,enable-gpio", 0);
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-
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-		if (gpio < 0) {
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-			dev_err(&pdev->dev, "missing DT GPIO nxp,enable-gpio\n");
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-			return gpio;
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-		}
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-
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-		pdata = devm_kzalloc(&pdev->dev,
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-			sizeof(struct isp1704_charger_data), GFP_KERNEL);
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-		if (!pdata) {
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-			ret = -ENOMEM;
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-			goto fail0;
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-		}
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-		pdata->enable_gpio = gpio;
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-
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-		dev_info(&pdev->dev, "init gpio %d\n", pdata->enable_gpio);
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-
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-		ret = devm_gpio_request_one(&pdev->dev, pdata->enable_gpio,
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-					GPIOF_OUT_INIT_HIGH, "isp1704_reset");
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-		if (ret) {
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-			dev_err(&pdev->dev, "gpio request failed\n");
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-			goto fail0;
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-		}
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-	}
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-
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-	if (!pdata) {
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-		dev_err(&pdev->dev, "missing platform data!\n");
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-		return -ENODEV;
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-	}
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-
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-
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386
 	isp = devm_kzalloc(&pdev->dev, sizeof(*isp), GFP_KERNEL);
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387
 	if (!isp)
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 		return -ENOMEM;
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389
 
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-	if (np)
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+	isp->enable_gpio = devm_gpiod_get(&pdev->dev, "nxp,enable",
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+					  GPIOD_OUT_HIGH);
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+	if (IS_ERR(isp->enable_gpio)) {
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+		ret = PTR_ERR(isp->enable_gpio);
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+		dev_err(&pdev->dev, "Could not get reset gpio: %d\n", ret);
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+		return ret;
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+	}
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+
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+	if (pdev->dev.of_node)
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 		isp->phy = devm_usb_get_phy_by_phandle(&pdev->dev, "usb-phy", 0);
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 	else
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 		isp->phy = devm_usb_get_phy(&pdev->dev, USB_PHY_TYPE_USB2);