From: Alban Bedel <albeu@free.fr>
Date: Wed, 16 Jan 2019 18:55:46 +0000 (+0100)
Subject: spi: ath79: Enable support for compile test
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=b172fd0c898022c47161a99cb40be5304b0d3fd0;p=linux.git

spi: ath79: Enable support for compile test

To allow building this driver in compile test we need to remove all
dependency on headers from arch/mips/include. To allow this we
explicitly define all the registers locally instead of using
ar71xx_regs.h and we move the platform data struct definition to
include/linux/platform_data/spi-ath79.h.

Signed-off-by: Alban Bedel <albeu@free.fr>
Signed-off-by: Mark Brown <broonie@kernel.org>
---

diff --git a/arch/mips/ath79/dev-spi.h b/arch/mips/ath79/dev-spi.h
index d732565ca736e..6e15bc8651beb 100644
--- a/arch/mips/ath79/dev-spi.h
+++ b/arch/mips/ath79/dev-spi.h
@@ -13,7 +13,7 @@
 #define _ATH79_DEV_SPI_H
 
 #include <linux/spi/spi.h>
-#include <asm/mach-ath79/ath79_spi_platform.h>
+#include <linux/platform_data/spi-ath79.h>
 
 void ath79_register_spi(struct ath79_spi_platform_data *pdata,
 			 struct spi_board_info const *info,
diff --git a/arch/mips/include/asm/mach-ath79/ath79_spi_platform.h b/arch/mips/include/asm/mach-ath79/ath79_spi_platform.h
deleted file mode 100644
index aa71216edf99f..0000000000000
--- a/arch/mips/include/asm/mach-ath79/ath79_spi_platform.h
+++ /dev/null
@@ -1,19 +0,0 @@
-/*
- *  Platform data definition for Atheros AR71XX/AR724X/AR913X SPI controller
- *
- *  Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org>
- *
- *  This program is free software; you can redistribute it and/or modify it
- *  under the terms of the GNU General Public License version 2 as published
- *  by the Free Software Foundation.
- */
-
-#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 */
diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig
index 128892c7e21eb..71d3d2d5e5d1e 100644
--- a/drivers/spi/Kconfig
+++ b/drivers/spi/Kconfig
@@ -63,7 +63,7 @@ config SPI_ALTERA
 
 config SPI_ATH79
 	tristate "Atheros AR71XX/AR724X/AR913X SPI controller driver"
-	depends on ATH79
+	depends on ATH79 || COMPILE_TEST
 	select SPI_BITBANG
 	help
 	  This enables support for the SPI controller present on the
diff --git a/drivers/spi/spi-ath79.c b/drivers/spi/spi-ath79.c
index edf695a359f4e..09c4fb7fcf7a8 100644
--- a/drivers/spi/spi-ath79.c
+++ b/drivers/spi/spi-ath79.c
@@ -23,15 +23,24 @@
 #include <linux/bitops.h>
 #include <linux/clk.h>
 #include <linux/err.h>
-
-#include <asm/mach-ath79/ar71xx_regs.h>
-#include <asm/mach-ath79/ath79_spi_platform.h>
+#include <linux/platform_data/spi-ath79.h>
 
 #define DRV_NAME	"ath79-spi"
 
 #define ATH79_SPI_RRW_DELAY_FACTOR	12000
 #define MHZ				(1000 * 1000)
 
+#define AR71XX_SPI_REG_FS		0x00	/* Function Select */
+#define AR71XX_SPI_REG_CTRL		0x04	/* SPI Control */
+#define AR71XX_SPI_REG_IOC		0x08	/* SPI I/O Control */
+#define AR71XX_SPI_REG_RDS		0x0c	/* Read Data Shift */
+
+#define AR71XX_SPI_FS_GPIO		BIT(0)	/* Enable GPIO mode */
+
+#define AR71XX_SPI_IOC_DO		BIT(0)	/* Data Out pin */
+#define AR71XX_SPI_IOC_CLK		BIT(8)	/* CLK pin */
+#define AR71XX_SPI_IOC_CS(n)		BIT(16 + (n))
+
 struct ath79_spi {
 	struct spi_bitbang	bitbang;
 	u32			ioc_base;
diff --git a/include/linux/platform_data/spi-ath79.h b/include/linux/platform_data/spi-ath79.h
new file mode 100644
index 0000000000000..aa71216edf99f
--- /dev/null
+++ b/include/linux/platform_data/spi-ath79.h
@@ -0,0 +1,19 @@
+/*
+ *  Platform data definition for Atheros AR71XX/AR724X/AR913X SPI controller
+ *
+ *  Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org>
+ *
+ *  This program is free software; you can redistribute it and/or modify it
+ *  under the terms of the GNU General Public License version 2 as published
+ *  by the Free Software Foundation.
+ */
+
+#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 */