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Commit e81e11bc authored by Andy Shevchenko's avatar Andy Shevchenko Committed by Ingo Molnar
Browse files

x86/platform/intel-mid: Enable spidev on Intel Edison boards 



Intel Edison board provides one of the SPI bus for user's connected devices.

Append platform data to get spidev enumerated over it.

Signed-off-by: default avatarAndy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Dan O'Donovan <dan@emutex.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1467677690-90007-1-git-send-email-andriy.shevchenko@linux.intel.com


Signed-off-by: default avatarIngo Molnar <mingo@kernel.org>
parent ca22312d

arch/x86/platform/intel-mid/device_libs/Makefile

+2 −0
Original line number Diff line number Diff line
@@ -10,6 +10,8 @@ obj-$(subst m,y,$(CONFIG_MFD_INTEL_MSIC)) += platform_msic_battery.o 
obj-$(subst m,y,$(CONFIG_INTEL_MID_POWER_BUTTON)) += platform_msic_power_btn.o

obj-$(subst m,y,$(CONFIG_GPIO_INTEL_PMIC)) += platform_pmic_gpio.o

obj-$(subst m,y,$(CONFIG_INTEL_MFLD_THERMAL)) += platform_msic_thermal.o

# SPI Devices

obj-$(subst m,y,$(CONFIG_SPI_SPIDEV)) += platform_spidev.o

# I2C Devices

obj-$(subst m,y,$(CONFIG_SENSORS_EMC1403)) += platform_emc1403.o

obj-$(subst m,y,$(CONFIG_SENSORS_LIS3LV02D)) += platform_lis331.o

arch/x86/platform/intel-mid/device_libs/platform_spidev.c

0 → 100644
+50 −0
Original line number Diff line number Diff line 
/*

 * spidev platform data initilization file

 *

 * (C) Copyright 2014, 2016 Intel Corporation

 * Authors: Andy Shevchenko <andriy.shevchenko@linux.intel.com>

 *	    Dan O'Donovan <dan@emutex.com>

 *

 * This program is free software; you can redistribute it and/or

 * modify it under the terms of the GNU General Public License

 * as published by the Free Software Foundation; version 2

 * of the License.

 */



#include <linux/init.h>

#include <linux/sfi.h>

#include <linux/spi/pxa2xx_spi.h>

#include <linux/spi/spi.h>



#include <asm/intel-mid.h>



#define MRFLD_SPI_DEFAULT_DMA_BURST	8

#define MRFLD_SPI_DEFAULT_TIMEOUT	500



/* GPIO pin for spidev chipselect */

#define MRFLD_SPIDEV_GPIO_CS		111



static struct pxa2xx_spi_chip spidev_spi_chip = {

	.dma_burst_size		= MRFLD_SPI_DEFAULT_DMA_BURST,

	.timeout		= MRFLD_SPI_DEFAULT_TIMEOUT,

	.gpio_cs		= MRFLD_SPIDEV_GPIO_CS,

};



static void __init *spidev_platform_data(void *info)

{

	struct spi_board_info *spi_info = info;



	spi_info->mode = SPI_MODE_0;

	spi_info->controller_data = &spidev_spi_chip;



	return NULL;

}



static const struct devs_id spidev_dev_id __initconst = {

	.name			= "spidev",

	.type			= SFI_DEV_TYPE_SPI,

	.delay			= 0,

	.get_platform_data	= &spidev_platform_data,

};



sfi_device(spidev_dev_id);