spi: ath79: drop platform data

The ath79 platform has been converted to pure OF. The platform data is
not needed anymore because of this.
Signed-off-by: David Bauer <mail@david-bauer.net>
Link: https://lore.kernel.org/r/20210522074453.39299-1-mail@david-bauer.netSigned-off-by: Mark Brown <broonie@kernel.org>

drivers/spi/spi-ath79.c

@@ -19,7 +19,6 @@
 #include <linux/bitops.h>
 #include <linux/clk.h>
 #include <linux/err.h>
-#include <linux/platform_data/spi-ath79.h>
 
 #define DRV_NAME	"ath79-spi"
 
@@ -138,7 +137,6 @@ static int ath79_spi_probe(struct platform_device *pdev)
 {
 	struct spi_master *master;
 	struct ath79_spi *sp;
-	struct ath79_spi_platform_data *pdata;
 	unsigned long rate;
 	int ret;
 
@@ -152,15 +150,9 @@ static int ath79_spi_probe(struct platform_device *pdev)
 	master->dev.of_node = pdev->dev.of_node;
 	platform_set_drvdata(pdev, sp);
 
-	pdata = dev_get_platdata(&pdev->dev);
-
 	master->use_gpio_descriptors = true;
 	master->bits_per_word_mask = SPI_BPW_RANGE_MASK(1, 32);
 	master->flags = SPI_MASTER_GPIO_SS;
-	if (pdata) {
-		master->bus_num = pdata->bus_num;
-		master->num_chipselect = pdata->num_chipselect;
-	}
 
 	sp->bitbang.master = master;
 	sp->bitbang.chipselect = ath79_spi_chipselect;

include/linux/platform_data/spi-ath79.h

-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- *  Platform data definition for Atheros AR71XX/AR724X/AR913X SPI controller
- *
- *  Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org>
- */
-
-#ifndef _ATH79_SPI_PLATFORM_H
-#define _ATH79_SPI_PLATFORM_H
-
-struct ath79_spi_platform_data {
-	unsigned	bus_num;
-	unsigned	num_chipselect;
-};
-
-#endif /* _ATH79_SPI_PLATFORM_H */