[PATCH][resent] PCI: rcar: Add PCIE_CONF_REGNO macro for PCIECAR register
From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Date: 2015-08-27 00:37:10
Also in:
linux-pci, lkml
Subsystem:
pci subsystem, the rest · Maintainers:
Bjorn Helgaas, Linus Torvalds
From: Nobuhiro Iwamatsu <redacted> The reg variable used when setting PCIECAR register need to be masked by 0xFC by restriction of the corresponding register. This adds PCIE_CONF_REGNO are macros for masking changes that PCIE_CONF_REGNO is used when setting PCIECAR register. Signed-off-by: Nobuhiro Iwamatsu <redacted> --- This patch was posted to ML, but still no response. I re-sent it because original author has gone now. drivers/pci/host/pcie-rcar.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/pci/host/pcie-rcar.c b/drivers/pci/host/pcie-rcar.c
index c086210..9fd39cd8b 100644
--- a/drivers/pci/host/pcie-rcar.c
+++ b/drivers/pci/host/pcie-rcar.c@@ -104,6 +104,7 @@ #define PCIE_CONF_BUS(b) (((b) & 0xff) << 24) #define PCIE_CONF_DEV(d) (((d) & 0x1f) << 19) #define PCIE_CONF_FUNC(f) (((f) & 0x7) << 16) +#define PCIE_CONF_REGNO(r) (r & 0xfc) #define RCAR_PCI_MAX_RESOURCES 4 #define MAX_NR_INBOUND_MAPS 6
@@ -227,7 +228,8 @@ static int rcar_pcie_config_access(struct rcar_pcie *pcie, /* Set the PIO address */ rcar_pci_write_reg(pcie, PCIE_CONF_BUS(bus->number) | - PCIE_CONF_DEV(dev) | PCIE_CONF_FUNC(func) | reg, PCIECAR); + PCIE_CONF_DEV(dev) | PCIE_CONF_FUNC(func) | + PCIE_CONF_REGNO(reg), PCIECAR); /* Enable the configuration access */ if (bus->parent->number = pcie->root_bus_nr)
--
1.9.1