change system file

hc

2024-10-09 244b2c5ca8b14627e4a17755e5922221e121c771

 kernel/drivers/spi/spi-axi-spi-engine.c
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@@ -1,9 +1,8 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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 /*
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  * SPI-Engine SPI controller driver
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  * Copyright 2015 Analog Devices Inc.
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  *  Author: Lars-Peter Clausen <lars@metafoo.de>
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- *
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- * Licensed under the GPL-2.
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  */
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 #include <linux/clk.h>
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@@ -164,10 +163,21 @@
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 }
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 static void spi_engine_gen_sleep(struct spi_engine_program *p, bool dry,
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-	struct spi_engine *spi_engine, unsigned int clk_div, unsigned int delay)
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+	struct spi_engine *spi_engine, unsigned int clk_div,
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+	struct spi_transfer *xfer)
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 {
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 	unsigned int spi_clk = clk_get_rate(spi_engine->ref_clk);
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 	unsigned int t;
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+	int delay;
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+
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+	if (xfer->delay_usecs) {
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+		delay = xfer->delay_usecs;
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+	} else {
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+		delay = spi_delay_to_ns(&xfer->delay, xfer);
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+		if (delay < 0)
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+			return;
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+		delay /= 1000;
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+	}
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 	if (delay == 0)
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 		return;
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@@ -219,8 +229,7 @@
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 			spi_engine_gen_cs(p, dry, spi, true);
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 		spi_engine_gen_xfer(p, dry, xfer);
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-		spi_engine_gen_sleep(p, dry, spi_engine, clk_div,
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-			xfer->delay_usecs);
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+		spi_engine_gen_sleep(p, dry, spi_engine, clk_div, xfer);
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 		cs_change = xfer->cs_change;
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 		if (list_is_last(&xfer->transfer_list, &msg->transfers))
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@@ -461,7 +470,6 @@
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 	struct spi_engine *spi_engine;
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 	struct spi_master *master;
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 	unsigned int version;
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-	struct resource *res;
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 	int irq;
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 	int ret;
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@@ -480,23 +488,6 @@
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 	spi_master_set_devdata(master, spi_engine);
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 	spin_lock_init(&spi_engine->lock);
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-
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-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
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-	spi_engine->base = devm_ioremap_resource(&pdev->dev, res);
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-	if (IS_ERR(spi_engine->base)) {
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-		ret = PTR_ERR(spi_engine->base);
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-		goto err_put_master;
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-	}
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-
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-	version = readl(spi_engine->base + SPI_ENGINE_REG_VERSION);
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-	if (SPI_ENGINE_VERSION_MAJOR(version) != 1) {
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-		dev_err(&pdev->dev, "Unsupported peripheral version %u.%u.%c\n",
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-			SPI_ENGINE_VERSION_MAJOR(version),
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-			SPI_ENGINE_VERSION_MINOR(version),
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-			SPI_ENGINE_VERSION_PATCH(version));
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-		ret = -ENODEV;
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-		goto err_put_master;
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-	}
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 	spi_engine->clk = devm_clk_get(&pdev->dev, "s_axi_aclk");
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 	if (IS_ERR(spi_engine->clk)) {
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@@ -518,6 +509,22 @@
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 	if (ret)
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 		goto err_clk_disable;
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+	spi_engine->base = devm_platform_ioremap_resource(pdev, 0);
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+	if (IS_ERR(spi_engine->base)) {
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+		ret = PTR_ERR(spi_engine->base);
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+		goto err_ref_clk_disable;
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+	}
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+
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+	version = readl(spi_engine->base + SPI_ENGINE_REG_VERSION);
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+	if (SPI_ENGINE_VERSION_MAJOR(version) != 1) {
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+		dev_err(&pdev->dev, "Unsupported peripheral version %u.%u.%c\n",
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+			SPI_ENGINE_VERSION_MAJOR(version),
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+			SPI_ENGINE_VERSION_MINOR(version),
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+			SPI_ENGINE_VERSION_PATCH(version));
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+		ret = -ENODEV;
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+		goto err_ref_clk_disable;
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+	}
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+
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 	writel_relaxed(0x00, spi_engine->base + SPI_ENGINE_REG_RESET);
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 	writel_relaxed(0xff, spi_engine->base + SPI_ENGINE_REG_INT_PENDING);
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 	writel_relaxed(0x00, spi_engine->base + SPI_ENGINE_REG_INT_ENABLE);