From: Auke Kok Date: Fri, 8 Jun 2007 22:46:30 +0000 (-0700) Subject: PCI: read revision ID by default X-Git-Tag: v2.6.23-rc1~1106^2~20 X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b8a3a5214d7cc115f1ca3a3967b7229d97c46f4a;p=linux-2.6 PCI: read revision ID by default Currently there are 97 occurrences where drivers need the pci revision ID. We can do this once for all devices. Even the pci subsystem needs the revision several times for quirks. The extra u8 member pads out nicely in the pci_dev struct. Signed-off-by: Auke Kok Signed-off-by: Greg Kroah-Hartman --- diff --git a/arch/powerpc/kernel/pci_64.c b/arch/powerpc/kernel/pci_64.c index 96d393c2da..e3009a43ac 100644 --- a/arch/powerpc/kernel/pci_64.c +++ b/arch/powerpc/kernel/pci_64.c @@ -367,8 +367,10 @@ struct pci_dev *of_create_pci_dev(struct device_node *node, sprintf(pci_name(dev), "%04x:%02x:%02x.%d", pci_domain_nr(bus), dev->bus->number, PCI_SLOT(devfn), PCI_FUNC(devfn)); dev->class = get_int_prop(node, "class-code", 0); + dev->revision = get_int_prop(node, "revision-id", 0); DBG(" class: 0x%x\n", dev->class); + DBG(" revision: 0x%x\n", dev->revision); dev->current_state = 4; /* unknown power state */ dev->error_state = pci_channel_io_normal; diff --git a/arch/sparc64/kernel/pci.c b/arch/sparc64/kernel/pci.c index 81f4a5ea05..55ad1b899b 100644 --- a/arch/sparc64/kernel/pci.c +++ b/arch/sparc64/kernel/pci.c @@ -448,6 +448,7 @@ struct pci_dev *of_create_pci_dev(struct pci_pbm_info *pbm, */ pci_read_config_dword(dev, PCI_CLASS_REVISION, &class); dev->class = class >> 8; + dev->revision = class & 0xff; sprintf(pci_name(dev), "%04x:%02x:%02x.%d", pci_domain_nr(bus), dev->bus->number, PCI_SLOT(devfn), PCI_FUNC(devfn)); diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c index 9cd983acba..8802fcb4aa 100644 --- a/drivers/pci/probe.c +++ b/drivers/pci/probe.c @@ -702,6 +702,7 @@ static int pci_setup_device(struct pci_dev * dev) dev->bus->number, PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn)); pci_read_config_dword(dev, PCI_CLASS_REVISION, &class); + dev->revision = class & 0xff; class >>= 8; /* upper 3 bytes */ dev->class = class; class >>= 8; diff --git a/include/linux/pci.h b/include/linux/pci.h index 5be420ac63..45332440a2 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -139,6 +139,7 @@ struct pci_dev { unsigned short subsystem_vendor; unsigned short subsystem_device; unsigned int class; /* 3 bytes: (base,sub,prog-if) */ + u8 revision; /* PCI revision, low byte of class word */ u8 hdr_type; /* PCI header type (`multi' flag masked out) */ u8 rom_base_reg; /* which config register controls the ROM */ u8 pin; /* which interrupt pin this device uses */