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x86/platform/intel-mid: Implement power off sequence

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Tell SCU that we are about powering off the device.

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/20160907123955.21228-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Andy Shevchenko
2016-09-07 15:39:55 +03:00
committed by Ingo Molnar
parent 3976b0380b
commit bda7b072de
4 changed files with 32 additions and 1 deletions
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2
arch/x86/include/asm/intel-mid.h
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@@ -18,6 +18,8 @@
extern int intel_mid_pci_init(void);
extern int intel_mid_pci_set_power_state(struct pci_dev *pdev, pci_power_t state);
extern void intel_mid_pwr_power_off(void);
#define INTEL_MID_PWR_LSS_OFFSET 4
#define INTEL_MID_PWR_LSS_TYPE (1 << 7)

2
arch/x86/include/asm/intel_scu_ipc.h
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@@ -3,6 +3,8 @@
#include <linux/notifier.h>
#define IPCMSG_COLD_OFF 0x80 /* Only for Tangier */
#define IPCMSG_WARM_RESET 0xF0
#define IPCMSG_COLD_RESET 0xF1
#define IPCMSG_SOFT_RESET 0xF2