From: Joerg Roedel Date: Tue, 24 Aug 2021 12:20:53 +0000 (+0200) Subject: PCI/ACPI: Move _OSC query checks to separate function X-Git-Tag: v6.1-rc5~2653^2~28^2~1 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=87f1f87a16818c36431391ea8c30ea926cab917f;p=platform%2Fkernel%2Flinux-starfive.git PCI/ACPI: Move _OSC query checks to separate function Move the checks about whether the _OSC controls are requested from the firmware to a separate function. Link: https://lore.kernel.org/r/20210824122054.29481-4-joro@8bytes.org Signed-off-by: Joerg Roedel Signed-off-by: Bjorn Helgaas Reviewed-by: Rafael J. Wysocki --- diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c index ed4e6b5..f12e512 100644 --- a/drivers/acpi/pci_root.c +++ b/drivers/acpi/pci_root.c @@ -449,6 +449,24 @@ static u32 calculate_control(void) return control; } +static bool os_control_query_checks(struct acpi_pci_root *root, u32 support) +{ + struct acpi_device *device = root->device; + + if (pcie_ports_disabled) { + dev_info(&device->dev, "PCIe port services disabled; not requesting _OSC control\n"); + return false; + } + + if ((support & ACPI_PCIE_REQ_SUPPORT) != ACPI_PCIE_REQ_SUPPORT) { + decode_osc_support(root, "not requesting OS control; OS requires", + ACPI_PCIE_REQ_SUPPORT); + return false; + } + + return true; +} + static void negotiate_os_control(struct acpi_pci_root *root, int *no_aspm, bool is_pcie) { @@ -485,16 +503,8 @@ static void negotiate_os_control(struct acpi_pci_root *root, int *no_aspm, return; } - if (pcie_ports_disabled) { - dev_info(&device->dev, "PCIe port services disabled; not requesting _OSC control\n"); + if (!os_control_query_checks(root, support)) return; - } - - if ((support & ACPI_PCIE_REQ_SUPPORT) != ACPI_PCIE_REQ_SUPPORT) { - decode_osc_support(root, "not requesting OS control; OS requires", - ACPI_PCIE_REQ_SUPPORT); - return; - } requested = control = calculate_control();