change system file

hc

2024-10-09 244b2c5ca8b14627e4a17755e5922221e121c771

 kernel/drivers/spi/spi-fsl-espi.c
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..
@@ -1,12 +1,8 @@
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+// SPDX-License-Identifier: GPL-2.0-or-later
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 /*
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  * Freescale eSPI controller driver.
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  *
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  * Copyright 2010 Freescale Semiconductor, Inc.
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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 of  the GNU General  Public License as published by the
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- * Free Software Foundation;  either version 2 of the  License, or (at your
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- * option) any later version.
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  */
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 #include <linux/delay.h>
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 #include <linux/err.h>
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@@ -431,8 +427,7 @@
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 	ret = fsl_espi_bufs(spi, trans);
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-	if (trans->delay_usecs)
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-		udelay(trans->delay_usecs);
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+	spi_transfer_delay_exec(trans);
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 	return ret;
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 }
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@@ -441,6 +436,7 @@
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 			       struct spi_message *m)
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 {
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 	unsigned int delay_usecs = 0, rx_nbits = 0;
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+	unsigned int delay_nsecs = 0, delay_nsecs1 = 0;
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 	struct spi_transfer *t, trans = {};
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 	int ret;
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@@ -449,8 +445,16 @@
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 		goto out;
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 	list_for_each_entry(t, &m->transfers, transfer_list) {
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-		if (t->delay_usecs > delay_usecs)
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-			delay_usecs = t->delay_usecs;
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+		if (t->delay_usecs) {
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+			if (t->delay_usecs > delay_usecs) {
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+				delay_usecs = t->delay_usecs;
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+				delay_nsecs = delay_usecs * 1000;
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+			}
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+		} else {
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+			delay_nsecs1 = spi_delay_to_ns(&t->delay, t);
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+			if (delay_nsecs1 > delay_nsecs)
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+				delay_nsecs = delay_nsecs1;
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+		}
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 		if (t->rx_nbits > rx_nbits)
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 			rx_nbits = t->rx_nbits;
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 	}
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@@ -461,7 +465,8 @@
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 	trans.len = m->frame_length;
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 	trans.speed_hz = t->speed_hz;
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 	trans.bits_per_word = t->bits_per_word;
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-	trans.delay_usecs = delay_usecs;
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+	trans.delay.value = delay_nsecs;
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+	trans.delay.unit = SPI_DELAY_UNIT_NSECS;
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 	trans.rx_nbits = rx_nbits;
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 	if (trans.len)
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@@ -726,7 +731,7 @@
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 	if (ret < 0)
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 		goto err_pm;
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-	dev_info(dev, "at 0x%p (irq = %u)\n", espi->reg_base, irq);
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+	dev_info(dev, "irq = %u\n", irq);
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 	pm_runtime_mark_last_busy(dev);
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 	pm_runtime_put_autosuspend(dev);
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@@ -799,10 +804,8 @@
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 	int ret;
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 	ret = spi_master_suspend(master);
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-	if (ret) {
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-		dev_warn(dev, "cannot suspend master\n");
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+	if (ret)
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 		return ret;
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-	}
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 	return pm_runtime_force_suspend(dev);
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 }