diff options
author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2016-06-29 22:01:34 +0300 |
---|---|---|
committer | Ingo Molnar <mingo@kernel.org> | 2016-07-01 10:12:39 +0200 |
commit | 0519e8b4cb2bda598f941088948129f9fe9e6acd (patch) | |
tree | eef6612b0457c30d53fb4293b69f8a4710ac42e9 /arch/x86/platform/intel-mid | |
parent | 00688272157d83e48d1369d7d11c479571324e40 (diff) |
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: Andy 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: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/platform/intel-mid')
-rw-r--r-- | arch/x86/platform/intel-mid/device_libs/Makefile | 2 | ||||
-rw-r--r-- | arch/x86/platform/intel-mid/device_libs/platform_mrfld_pinctrl.c | 43 |
2 files changed, 45 insertions, 0 deletions
diff --git a/arch/x86/platform/intel-mid/device_libs/Makefile b/arch/x86/platform/intel-mid/device_libs/Makefile index abe8ba87c970..79e97ed5be5b 100644 --- a/arch/x86/platform/intel-mid/device_libs/Makefile +++ b/arch/x86/platform/intel-mid/device_libs/Makefile @@ -1,3 +1,5 @@ +# Family-Level Interface Shim (FLIS) +obj-$(subst m,y,$(CONFIG_PINCTRL_MERRIFIELD)) += platform_mrfld_pinctrl.o # IPC Devices obj-y += platform_ipc.o obj-$(subst m,y,$(CONFIG_MFD_INTEL_MSIC)) += platform_msic.o diff --git a/arch/x86/platform/intel-mid/device_libs/platform_mrfld_pinctrl.c b/arch/x86/platform/intel-mid/device_libs/platform_mrfld_pinctrl.c new file mode 100644 index 000000000000..4de8a664e6a1 --- /dev/null +++ b/arch/x86/platform/intel-mid/device_libs/platform_mrfld_pinctrl.c @@ -0,0 +1,43 @@ +/* + * 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); |