420b54de25
Intel Sunrisepoint (Skylake PCH) has the iTCO watchdog accessible across the SMBus, unlike previous generations of PCH/ICH where it was on the LPC bus. Because it's on the SMBus, it doesn't make sense to pass around a 'struct lpc_ich_info', and leaking the type of bus into the iTCO watchdog driver is kind of backwards anyway. This change introduces a new 'struct itco_wdt_platform_data' for use inside the iTCO watchdog driver and by the upcoming Intel Sunrisepoint code, which neatly avoids having to include lpc_ich headers in the i801 i2c driver. This change is overdue because lpc_ich_info has already found its way into other TCO watchdog users, notably the intel_pmc_ipc driver where the watchdog actually isn't on the LPC bus as far as I can see. A simple translation layer is provided for converting from the existing 'struct lpc_ich_info' inside the lpc_ich mfd driver. Signed-off-by: Matt Fleming <matt.fleming@intel.com> Acked-by: Darren Hart <dvhart@linux.intel.com> [drivers/x86 refactoring] Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Lee Jones <lee.jones@linaro.org>
47 lines
1.2 KiB
C
47 lines
1.2 KiB
C
/*
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* linux/drivers/mfd/lpc_ich.h
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*
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* Copyright (c) 2012 Extreme Engineering Solution, Inc.
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* Author: Aaron Sierra <asierra@xes-inc.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License 2 as published
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* by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; see the file COPYING. If not, write to
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* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#ifndef LPC_ICH_H
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#define LPC_ICH_H
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/* GPIO resources */
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#define ICH_RES_GPIO 0
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#define ICH_RES_GPE0 1
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/* GPIO compatibility */
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enum {
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ICH_I3100_GPIO,
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ICH_V5_GPIO,
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ICH_V6_GPIO,
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ICH_V7_GPIO,
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ICH_V9_GPIO,
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ICH_V10CORP_GPIO,
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ICH_V10CONS_GPIO,
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AVOTON_GPIO,
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};
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struct lpc_ich_info {
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char name[32];
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unsigned int iTCO_version;
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unsigned int gpio_version;
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u8 use_gpio;
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};
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#endif
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