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Commit 0519e8b4 authored by Andy Shevchenko's avatar Andy Shevchenko Committed by Ingo Molnar
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x86/platform/intel-mid: Add pinctrl for Intel Merrifield 



Intel Merrifield uses a special address space reserved for Family-Level
Interface Shim (FLIS) that allows consumers to mux and configure pins.

Create a platform device for it.

Signed-off-by: default avatarAndy Shevchenko <andriy.shevchenko@linux.intel.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/1467226894-107109-1-git-send-email-andriy.shevchenko@linux.intel.com


[ Fixed typo. ]
Signed-off-by: default avatarIngo Molnar <mingo@kernel.org>
parent 00688272

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

+2 −0
Original line number Original line Diff line number Diff line 
# Family-Level Interface Shim (FLIS)

obj-$(subst m,y,$(CONFIG_PINCTRL_MERRIFIELD)) += platform_mrfld_pinctrl.o

# IPC Devices

# IPC Devices

obj-y += platform_ipc.o

obj-y += platform_ipc.o

obj-$(subst m,y,$(CONFIG_MFD_INTEL_MSIC)) += platform_msic.o

obj-$(subst m,y,$(CONFIG_MFD_INTEL_MSIC)) += platform_msic.o

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

0 → 100644
+43 −0
Original line number Original line Diff line number Diff line 
/*

 * Intel Merrifield FLIS platform device initialization file

 *

 * Copyright (C) 2016, Intel Corporation

 *

 * Author: Andy Shevchenko <andriy.shevchenko@linux.intel.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/ioport.h>

#include <linux/platform_device.h>



#include <asm/intel-mid.h>



#define FLIS_BASE_ADDR			0xff0c0000

#define FLIS_LENGTH			0x8000



static struct resource mrfld_pinctrl_mmio_resource = {

	.start		= FLIS_BASE_ADDR,

	.end		= FLIS_BASE_ADDR + FLIS_LENGTH - 1,

	.flags		= IORESOURCE_MEM,

};



static struct platform_device mrfld_pinctrl_device = {

	.name		= "pinctrl-merrifield",

	.id		= PLATFORM_DEVID_NONE,

	.resource	= &mrfld_pinctrl_mmio_resource,

	.num_resources	= 1,

};



static int __init mrfld_pinctrl_init(void)

{

	if (intel_mid_identify_cpu() == INTEL_MID_CPU_CHIP_TANGIER)

		return platform_device_register(&mrfld_pinctrl_device);



	return -ENODEV;

}

arch_initcall(mrfld_pinctrl_init);