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| author | Thomas Gleixner <tglx@linutronix.de> | 2020-10-24 22:35:19 +0100 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2020-10-28 20:26:26 +0100 |
| commit | a27dca645d2c0f31abb7858aa0e10b2fa0f2f659 (patch) | |
| tree | 9573bd02be3fe46260dfae5b54823df3a22f815e /arch/x86/pci | |
| parent | 0c1883c1eb9dfa3c72af6e00425eeb1eb171a03e (diff) | |
| download | linux-a27dca645d2c0f31abb7858aa0e10b2fa0f2f659.tar.bz2 | |
x86/io_apic: Cleanup trigger/polarity helpers
'trigger' and 'polarity' are used throughout the I/O-APIC code for handling
the trigger type (edge/level) and the active low/high configuration. While
there are defines for initializing these variables and struct members, they
are not used consequently and the meaning of 'trigger' and 'polarity' is
opaque and confusing at best.
Rename them to 'is_level' and 'active_low' and make them boolean in various
structs so it's entirely clear what the meaning is.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20201024213535.443185-20-dwmw2@infradead.org
Diffstat (limited to 'arch/x86/pci')
| -rw-r--r-- | arch/x86/pci/intel_mid_pci.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/arch/x86/pci/intel_mid_pci.c b/arch/x86/pci/intel_mid_pci.c index 24ca4ee2802f..95e2e6bd8d8c 100644 --- a/arch/x86/pci/intel_mid_pci.c +++ b/arch/x86/pci/intel_mid_pci.c @@ -215,7 +215,7 @@ static int pci_write(struct pci_bus *bus, unsigned int devfn, int where, static int intel_mid_pci_irq_enable(struct pci_dev *dev) { struct irq_alloc_info info; - int polarity; + bool polarity_low; int ret; u8 gsi; @@ -230,7 +230,7 @@ static int intel_mid_pci_irq_enable(struct pci_dev *dev) switch (intel_mid_identify_cpu()) { case INTEL_MID_CPU_CHIP_TANGIER: - polarity = IOAPIC_POL_HIGH; + polarity_low = false; /* Special treatment for IRQ0 */ if (gsi == 0) { @@ -252,11 +252,11 @@ static int intel_mid_pci_irq_enable(struct pci_dev *dev) } break; default: - polarity = IOAPIC_POL_LOW; + polarity_low = true; break; } - ioapic_set_alloc_attr(&info, dev_to_node(&dev->dev), 1, polarity); + ioapic_set_alloc_attr(&info, dev_to_node(&dev->dev), 1, polarity_low); /* * MRST only have IOAPIC, the PCI irq lines are 1:1 mapped to |