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authorIngo Molnar <mingo@kernel.org>2016-11-16 10:16:28 +0100
committerIngo Molnar <mingo@kernel.org>2016-11-16 10:16:28 +0100
commit0acbc7aa4713b450ff46f9c9f6ce0060ea6947b1 (patch)
tree480508a78b7d9e9c0da0ffbd33b40e0b4e076a16 /arch/x86/platform/intel-mid/pwr.c
parent353c50ebe329daaf2c94dc41c1c481cbba2a31fd (diff)
parent81bcfe5e48f9b8c42cf547f1c74c7f60c44c34c8 (diff)
Merge branch 'linus' into sched/core, to pick up fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/platform/intel-mid/pwr.c')
-rw-r--r--arch/x86/platform/intel-mid/pwr.c19
1 files changed, 19 insertions, 0 deletions
diff --git a/arch/x86/platform/intel-mid/pwr.c b/arch/x86/platform/intel-mid/pwr.c
index 5d3b45ad1c03..67375dda451c 100644
--- a/arch/x86/platform/intel-mid/pwr.c
+++ b/arch/x86/platform/intel-mid/pwr.c
@@ -272,6 +272,25 @@ int intel_mid_pci_set_power_state(struct pci_dev *pdev, pci_power_t state)
}
EXPORT_SYMBOL_GPL(intel_mid_pci_set_power_state);
+pci_power_t intel_mid_pci_get_power_state(struct pci_dev *pdev)
+{
+ struct mid_pwr *pwr = midpwr;
+ int id, reg, bit;
+ u32 power;
+
+ if (!pwr || !pwr->available)
+ return PCI_UNKNOWN;
+
+ id = intel_mid_pwr_get_lss_id(pdev);
+ if (id < 0)
+ return PCI_UNKNOWN;
+
+ reg = (id * LSS_PWS_BITS) / 32;
+ bit = (id * LSS_PWS_BITS) % 32;
+ power = mid_pwr_get_state(pwr, reg);
+ return (__force pci_power_t)((power >> bit) & 3);
+}
+
void intel_mid_pwr_power_off(void)
{
struct mid_pwr *pwr = midpwr;