add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/drivers/spi/spi-clps711x.c
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@@ -1,17 +1,13 @@
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+// SPDX-License-Identifier: GPL-2.0-or-later
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 /*
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  *  CLPS711X SPI bus driver
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  *
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  *  Copyright (C) 2012-2016 Alexander Shiyan <shc_work@mail.ru>
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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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 #include <linux/io.h>
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 #include <linux/clk.h>
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-#include <linux/gpio.h>
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+#include <linux/gpio/consumer.h>
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 #include <linux/module.h>
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 #include <linux/interrupt.h>
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 #include <linux/platform_device.h>
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@@ -35,25 +31,6 @@
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 	unsigned int		bpw;
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 	int			len;
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 };
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-
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-static int spi_clps711x_setup(struct spi_device *spi)
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-{
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-	if (!spi->controller_state) {
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-		int ret;
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-
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-		ret = devm_gpio_request(&spi->master->dev, spi->cs_gpio,
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-					dev_name(&spi->master->dev));
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-		if (ret)
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-			return ret;
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-
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-		spi->controller_state = spi;
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-	}
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-
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-	/* We are expect that SPI-device is not selected */
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-	gpio_direction_output(spi->cs_gpio, !(spi->mode & SPI_CS_HIGH));
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-
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-	return 0;
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-}
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 static int spi_clps711x_prepare_message(struct spi_master *master,
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 					struct spi_message *msg)
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@@ -114,7 +91,6 @@
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 {
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 	struct spi_clps711x_data *hw;
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 	struct spi_master *master;
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-	struct resource *res;
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 	int irq, ret;
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 	irq = platform_get_irq(pdev, 0);
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@@ -125,11 +101,11 @@
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 	if (!master)
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 		return -ENOMEM;
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+	master->use_gpio_descriptors = true;
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 	master->bus_num = -1;
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 	master->mode_bits = SPI_CPHA | SPI_CS_HIGH;
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 	master->bits_per_word_mask =  SPI_BPW_RANGE_MASK(1, 8);
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 	master->dev.of_node = pdev->dev.of_node;
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-	master->setup = spi_clps711x_setup;
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 	master->prepare_message = spi_clps711x_prepare_message;
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 	master->transfer_one = spi_clps711x_transfer_one;
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@@ -148,8 +124,7 @@
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 		goto err_out;
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 	}
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-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
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-	hw->syncio = devm_ioremap_resource(&pdev->dev, res);
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+	hw->syncio = devm_platform_ioremap_resource(pdev, 0);
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 	if (IS_ERR(hw->syncio)) {
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 		ret = PTR_ERR(hw->syncio);
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 		goto err_out;