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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>
20 lines
331 B
C
20 lines
331 B
C
/*
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* Platform data for the Intel TCO Watchdog
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*/
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#ifndef _ITCO_WDT_H_
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#define _ITCO_WDT_H_
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/* Watchdog resources */
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#define ICH_RES_IO_TCO 0
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#define ICH_RES_IO_SMI 1
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#define ICH_RES_MEM_OFF 2
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#define ICH_RES_MEM_GCS_PMC 0
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struct itco_wdt_platform_data {
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char name[32];
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unsigned int version;
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};
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#endif /* _ITCO_WDT_H_ */
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