1. 11 Aug, 2015 1 commit
    • Matt Fleming's avatar
      mfd: watchdog: iTCO_wdt: Expose watchdog properties using platform data · 420b54de
      Matt Fleming authored
      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: default avatarMatt Fleming <matt.fleming@intel.com>
      Acked-by: Darren Hart <dvhart@linux.intel.com> [drivers/x86 refactoring]
      Reviewed-by: default avatarGuenter Roeck <linux@roeck-us.net>
      Signed-off-by: default avatarLee Jones <lee.jones@linaro.org>
      420b54de