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mfd: Add LPC driver for Intel ICH chipsets

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This driver currently creates resources for use by a forthcoming ICH
chipset GPIO driver. It could be expanded to create the resources for
converting the esb2rom (mtd) and iTCO_wdt (wdt), and potentially more,
drivers to use the mfd model.

Signed-off-by: Aaron Sierra <asierra@xes-inc.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This commit is contained in:
Aaron Sierra
2012-03-28 09:43:10 -05:00
committed by Samuel Ortiz
parent f4bf7cf4ca
commit 4630b130b3
4 changed files with 770 additions and 0 deletions
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drivers/mfd/Kconfig
+9
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@@ -748,6 +748,15 @@ config LPC_SCH
LPC bridge function of the Intel SCH provides support for
System Management Bus and General Purpose I/O.
config LPC_ICH
tristate "Intel ICH LPC"
depends on PCI
select MFD_CORE
help
The LPC bridge function of the Intel ICH provides support for
many functional units. This driver provides needed support for
other drivers to control these functions, currently GPIO.
config MFD_RDC321X
tristate "Support for RDC-R321x southbridge"
select MFD_CORE
drivers/mfd/Makefile
+1
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@@ -99,6 +99,7 @@ obj-$(CONFIG_MFD_DB5500_PRCMU) += db5500-prcmu.o
obj-$(CONFIG_MFD_TIMBERDALE) += timberdale.o
obj-$(CONFIG_PMIC_ADP5520) += adp5520.o
obj-$(CONFIG_LPC_SCH) += lpc_sch.o
obj-$(CONFIG_LPC_ICH) += lpc_ich.o
obj-$(CONFIG_MFD_RDC321X) += rdc321x-southbridge.o
obj-$(CONFIG_MFD_JANZ_CMODIO) += janz-cmodio.o
obj-$(CONFIG_MFD_JZ4740_ADC) += jz4740-adc.o
drivers/mfd/lpc_ich.c
+719
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File diff suppressed because it is too large Load Diff
include/linux/mfd/lpc_ich.h
+41
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@@ -0,0 +1,41 @@
/*
* linux/drivers/mfd/lpc_ich.h
*
* Copyright (c) 2012 Extreme Engineering Solution, Inc.
* Author: Aaron Sierra <asierra@xes-inc.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License 2 as published
* by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; see the file COPYING. If not, write to
* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef LPC_ICH_H
#define LPC_ICH_H
/* GPIO resources */
#define ICH_RES_GPIO 0
#define ICH_RES_GPE0 1
/* GPIO compatibility */
#define ICH_I3100_GPIO 0x401
#define ICH_V5_GPIO 0x501
#define ICH_V6_GPIO 0x601
#define ICH_V7_GPIO 0x701
#define ICH_V9_GPIO 0x801
#define ICH_V10CORP_GPIO 0xa01
#define ICH_V10CONS_GPIO 0xa11
struct lpc_ich_info {
char name[32];
unsigned int gpio_version;
};
#endif