修改led为gpio

hc

2024-10-12 a5969cabbb4660eab42b6ef0412cbbd1200cf14d

 kernel/arch/powerpc/platforms/pseries/event_sources.c
..
..
@@ -1,22 +1,10 @@
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+// SPDX-License-Identifier: GPL-2.0-or-later
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 /*
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  * Copyright (C) 2001 Dave Engebretsen IBM Corporation
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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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  */
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-#include <asm/prom.h>
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+#include <linux/interrupt.h>
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+#include <linux/of_irq.h>
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 #include "pseries.h"
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10
 
..
..
@@ -24,34 +12,19 @@
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12
 				irq_handler_t handler,
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 				const char *name)
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 {
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-	int i, index, count = 0;
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-	struct of_phandle_args oirq;
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-	unsigned int virqs[16];
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+	int i, virq, rc;
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16
 
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-	/* First try to do a proper OF tree parsing */
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-	for (index = 0; of_irq_parse_one(np, index, &oirq) == 0;
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-	     index++) {
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-		if (count > 15)
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-			break;
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-		virqs[count] = irq_create_of_mapping(&oirq);
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-		if (!virqs[count]) {
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-			pr_err("event-sources: Unable to allocate "
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-			       "interrupt number for %pOF\n",
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-			       np);
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-			WARN_ON(1);
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-		} else {
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-			count++;
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-		}
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-	}
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-
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-	/* Now request them */
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-	for (i = 0; i < count; i++) {
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-		if (request_irq(virqs[i], handler, 0, name, NULL)) {
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-			pr_err("event-sources: Unable to request interrupt "
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-			       "%d for %pOF\n", virqs[i], np);
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-			WARN_ON(1);
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+	for (i = 0; i < 16; i++) {
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+		virq = of_irq_get(np, i);
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+		if (virq < 0)
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 			return;
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-		}
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+		if (WARN(!virq, "event-sources: Unable to allocate "
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+			        "interrupt number for %pOF\n", np))
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+			continue;
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+
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+		rc = request_irq(virq, handler, 0, name, NULL);
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+		if (WARN(rc, "event-sources: Unable to request interrupt %d for %pOF\n",
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+		    virq, np))
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+			return;
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 	}
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 }
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-