From 2dcfaf85cd0ced6dcfd4bf0012354b3fd2ed1f38 Mon Sep 17 00:00:00 2001 From: Jiang Liu Date: Tue, 24 Jul 2012 17:20:08 +0800 Subject: [PATCH] PCI/portdrv: Use PCI Express Capability accessors Use PCI Express Capability access functions to simplify portdrv. Signed-off-by: Jiang Liu Signed-off-by: Yijing Wang Signed-off-by: Bjorn Helgaas Reviewed-by: Kenji Kaneshige --- drivers/pci/pcie/portdrv_core.c | 15 +++++---------- drivers/pci/pcie/portdrv_pci.c | 9 +-------- 2 files changed, 6 insertions(+), 18 deletions(-) diff --git a/drivers/pci/pcie/portdrv_core.c b/drivers/pci/pcie/portdrv_core.c index bf320a9419f4..aede99171e90 100644 --- a/drivers/pci/pcie/portdrv_core.c +++ b/drivers/pci/pcie/portdrv_core.c @@ -246,8 +246,7 @@ static void cleanup_service_irqs(struct pci_dev *dev) */ static int get_port_device_capability(struct pci_dev *dev) { - int services = 0, pos; - u16 reg16; + int services = 0; u32 reg32; int cap_mask = 0; int err; @@ -265,11 +264,9 @@ static int get_port_device_capability(struct pci_dev *dev) return 0; } - pos = pci_pcie_cap(dev); - pci_read_config_word(dev, pos + PCI_EXP_FLAGS, ®16); /* Hot-Plug Capable */ - if ((cap_mask & PCIE_PORT_SERVICE_HP) && (reg16 & PCI_EXP_FLAGS_SLOT)) { - pci_read_config_dword(dev, pos + PCI_EXP_SLTCAP, ®32); + if (cap_mask & PCIE_PORT_SERVICE_HP) { + pcie_capability_read_dword(dev, PCI_EXP_SLTCAP, ®32); if (reg32 & PCI_EXP_SLTCAP_HPC) { services |= PCIE_PORT_SERVICE_HP; /* @@ -277,10 +274,8 @@ static int get_port_device_capability(struct pci_dev *dev) * enabled by the BIOS and the hot-plug service driver * is not loaded. */ - pos += PCI_EXP_SLTCTL; - pci_read_config_word(dev, pos, ®16); - reg16 &= ~(PCI_EXP_SLTCTL_CCIE | PCI_EXP_SLTCTL_HPIE); - pci_write_config_word(dev, pos, reg16); + pcie_capability_clear_word(dev, PCI_EXP_SLTCTL, + PCI_EXP_SLTCTL_CCIE | PCI_EXP_SLTCTL_HPIE); } } /* AER capable */ diff --git a/drivers/pci/pcie/portdrv_pci.c b/drivers/pci/pcie/portdrv_pci.c index 24d1463e688b..2360330e48f1 100644 --- a/drivers/pci/pcie/portdrv_pci.c +++ b/drivers/pci/pcie/portdrv_pci.c @@ -64,14 +64,7 @@ __setup("pcie_ports=", pcie_port_setup); */ void pcie_clear_root_pme_status(struct pci_dev *dev) { - int rtsta_pos; - u32 rtsta; - - rtsta_pos = pci_pcie_cap(dev) + PCI_EXP_RTSTA; - - pci_read_config_dword(dev, rtsta_pos, &rtsta); - rtsta |= PCI_EXP_RTSTA_PME; - pci_write_config_dword(dev, rtsta_pos, rtsta); + pcie_capability_set_dword(dev, PCI_EXP_RTSTA, PCI_EXP_RTSTA_PME); } static int pcie_portdrv_restore_config(struct pci_dev *dev) -- 2.20.1