Displaying 4 results from an estimated 4 matches for "pci_get_base_class".
2023 Aug 25
7
[PATCH 0/5] Add the pci_get_base_class() helper and use it
From: Sui Jingfeng <suijingfeng at loongson.cn>
There is no function that can be used to get all PCI(e) devices in a
system by matching against its the PCI base class code only, while keep
the sub-class code and the programming interface ignored. Therefore, add
the pci_get_base_class() function to suit the need.
For example, if an application want to process all PCI(e) display devices
in a system, it can achieve such goal by writing the code as following:
pdev = NULL;
do {
pdev = pci_get_base_class(PCI_BASE_CLASS_DISPLAY, pdev);
if (!pdev)...
2023 Aug 25
0
[PATCH 1/5] PCI: Add the pci_get_base_class() helper
From: Sui Jingfeng <suijingfeng at loongson.cn>
There is no function that can be used to get all PCI(e) devices in a
system by matching against its the PCI base class code only, while keep
the sub-class code and the programming interface ignored. Therefore, add
the pci_get_base_class() function to suit the need.
For example, if an application want to process all PCI(e) display devices
in a system, it can achieve such goal by writing the code as following:
pdev = NULL;
do {
pdev = pci_get_base_class(PCI_BASE_CLASS_DISPLAY, pdev);
if (!pdev)
break;
do_somet...
2023 Aug 25
1
[PATCH 2/5] ALSA: hda/intel: Use pci_get_base_class() to reduce duplicated code
...;pdev->dev);
- if (dhandle) {
- status = acpi_get_handle(dhandle, "ATPX", &atpx_handle);
- if (ACPI_SUCCESS(status)) {
- pci_dev_put(pdev);
- return true;
- }
- }
- }
- while ((pdev = pci_get_class(PCI_CLASS_DISPLAY_OTHER << 8, pdev)) != NULL) {
+ while ((pdev = pci_get_base_class(PCI_BASE_CLASS_DISPLAY, pdev))) {
+ if ((pdev->class != PCI_CLASS_DISPLAY_VGA << 8) &&
+ (pdev->class != PCI_CLASS_DISPLAY_OTHER << 8))
+ continue;
+
dhandle = ACPI_HANDLE(&pdev->dev);
if (dhandle) {
status = acpi_get_handle(dhandle, "ATPX&quo...
2023 Aug 25
0
[PATCH 5/5] drm/radeon: Use pci_get_base_class() to reduce duplicated code
...radeon_bios.c
+++ b/drivers/gpu/drm/radeon/radeon_bios.c
@@ -199,7 +199,11 @@ static bool radeon_atrm_get_bios(struct radeon_device *rdev)
if (rdev->flags & RADEON_IS_IGP)
return false;
- while ((pdev = pci_get_class(PCI_CLASS_DISPLAY_VGA << 8, pdev)) != NULL) {
+ while ((pdev = pci_get_base_class(PCI_BASE_CLASS_DISPLAY, pdev))) {
+ if ((pdev->class != PCI_CLASS_DISPLAY_VGA << 8) &&
+ (pdev->class != PCI_CLASS_DISPLAY_OTHER << 8))
+ continue;
+
dhandle = ACPI_HANDLE(&pdev->dev);
if (!dhandle)
continue;
@@ -211,20 +215,6 @@ static bool radeon...