Hi Joao, Thanks a lot for your ack! > -----Original Message----- > From: Joao Pinto [mailto:Joao.Pinto@xxxxxxxxxxxx] > Sent: 2017年8月8日 20:46 > To: Z.q. Hou <zhiqiang.hou@xxxxxxx>; linux-pci@xxxxxxxxxxxxxxx; > bhelgaas@xxxxxxxxxx; jingoohan1@xxxxxxxxx; Joao.Pinto@xxxxxxxxxxxx > Cc: M.h. Lian <minghuan.lian@xxxxxxx>; Mingkai Hu <mingkai.hu@xxxxxxx>; > Roy Zang <roy.zang@xxxxxxx> > Subject: Re: [PATCHv2 3/6] PCI: layerscape: use accessors to enable/disable > DBI RO registers' write permission > > Às 9:23 AM de 8/3/2017, Zhiqiang Hou escreveu: > > From: Hou Zhiqiang <Zhiqiang.Hou@xxxxxxx> > > > > Use the accessors instead accessing the DBI read-only write enable > > register directly. And the STRFMR1 is not read-only register, so move > > it out from the write-enable bracket. > > > > Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@xxxxxxx> > > --- > > V2: > > - New patch split from patch v1 3/3. > > > > drivers/pci/dwc/pci-layerscape.c | 6 +++--- > > 1 file changed, 3 insertions(+), 3 deletions(-) > > > > diff --git a/drivers/pci/dwc/pci-layerscape.c > > b/drivers/pci/dwc/pci-layerscape.c > > index fd86128..09056a6 100644 > > --- a/drivers/pci/dwc/pci-layerscape.c > > +++ b/drivers/pci/dwc/pci-layerscape.c > > @@ -33,7 +33,6 @@ > > > > /* PEX Internal Configuration Registers */ > > #define PCIE_STRFMR1 0x71c /* Symbol Timer & Filter Mask > Register1 */ > > -#define PCIE_DBI_RO_WR_EN 0x8bc /* DBI Read-Only Write Enable > Register */ > > > > struct ls_pcie_drvdata { > > u32 lut_offset; > > @@ -155,11 +154,12 @@ static void ls_pcie_host_init(struct pcie_port *pp) > > struct dw_pcie *pci = to_dw_pcie_from_pp(pp); > > struct ls_pcie *pcie = to_ls_pcie(pci); > > > > - iowrite32(1, pci->dbi_base + PCIE_DBI_RO_WR_EN); > > + dw_pcie_dbi_ro_wr_en(pci); > > ls_pcie_fix_class(pcie); > > ls_pcie_clear_multifunction(pcie); > > + dw_pcie_dbi_ro_wr_dis(pci); > > + > > ls_pcie_drop_msg_tlp(pcie); > > - iowrite32(0, pci->dbi_base + PCIE_DBI_RO_WR_EN); > > } > > > > static int ls_pcie_msi_host_init(struct pcie_port *pp, > > > > Acked-By: Joao Pinto <jpinto@xxxxxxxxxxxx> - Zhiqiang
