Unverified Commit b172fd0c authored by Alban Bedel's avatar Alban Bedel Committed by Mark Brown
Browse files

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: default avatarAlban Bedel <albeu@free.fr>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 797622d7

arch/mips/ath79/dev-spi.h

+1 −1
Original line number Diff line number Diff line
@@ -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,

drivers/spi/Kconfig

+1 −1
Original line number Diff line number Diff line
@@ -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

drivers/spi/spi-ath79.c

+12 −3
Original line number Diff line number Diff line
@@ -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;

CRA Git | Maintained and supported by SUSTech CRA and CCSE