write in 30M

hc

2024-02-20 ea08eeccae9297f7aabd2ef7f0c2517ac4549acc

 kernel/drivers/gpio/gpio-xra1403.c
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@@ -1,19 +1,8 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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 /*
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  * GPIO driver for EXAR XRA1403 16-bit GPIO expander
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  *
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  * Copyright (c) 2017, General Electric Company
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- *
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- * This program is free software; you can redistribute it and/or modify it
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- * under the terms and conditions of the GNU General Public License,
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- * version 2, as published by the Free Software Foundation.
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- *
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- * This program is distributed in the hope it will be useful, but WITHOUT
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- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
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- * 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, see <http://www.gnu.org/licenses/>.
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  */
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 #include <linux/bitops.h>
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@@ -94,7 +83,10 @@
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 	if (ret)
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 		return ret;
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-	return !!(val & BIT(offset % 8));
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+	if (val & BIT(offset % 8))
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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 xra1403_get(struct gpio_chip *chip, unsigned int offset)
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@@ -129,6 +121,7 @@
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 	struct xra1403 *xra = gpiochip_get_data(chip);
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 	int value[XRA_LAST];
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 	int i;
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+	const char *label;
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 	unsigned int gcr;
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 	unsigned int gsr;
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@@ -144,12 +137,7 @@
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 	gcr = value[XRA_GCR + 1] << 8 | value[XRA_GCR];
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 	gsr = value[XRA_GSR + 1] << 8 | value[XRA_GSR];
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-	for (i = 0; i < chip->ngpio; i++) {
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-		const char *label = gpiochip_is_requested(chip, i);
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-
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-		if (!label)
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-			continue;
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-
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+	for_each_requested_gpio(chip, i, label) {
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 		seq_printf(s, " gpio-%-3d (%-12s) %s %s\n",
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 			   chip->base + i, label,
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 			   (gcr & BIT(i)) ? "in" : "out",