On Thu, Jul 04, 2019 at 03:00:37AM +0000, Z.q. Hou wrote:

[...]

> > If you can manage to rebase patches on pci/mobiveil on top of v5.2-rc1,
> > send them separately so that I can merge them as a base for the subsequent
> > patches to be applied.
> 
> You meant send the patches one by one, which you requested to split, and
> other patches without any changes can be send together, right?

First step, rebase my branch above against v5.2-rc1 *without* this
patch. Then apply all the patches I requested to split (inclusive of
this one) on top of it and send the whole patch series in one go.

Please let me know if that's still unclear.

Thanks,
Lorenzo

> > If you have any questions please ask, do not post patches if there is
> > something that is not clear.
> 
> Yes, I'll, thanks for your guide again!
> 
> B.R,
> Zhiqiang
> 
> > 
> > Lorenzo
> > 
> > > diff --git a/drivers/pci/controller/pcie-mobiveil.c
> > > b/drivers/pci/controller/pcie-mobiveil.c
> > > index d55c7e780c6e..b87471f08a40 100644
> > > --- a/drivers/pci/controller/pcie-mobiveil.c
> > > +++ b/drivers/pci/controller/pcie-mobiveil.c
> > > @@ -31,38 +31,40 @@
> > >   * translation tables are grouped into windows, each window registers
> > are
> > >   * grouped into blocks of 4 or 16 registers each
> > >   */
> > > -#define PAB_REG_BLOCK_SIZE       16
> > > -#define PAB_EXT_REG_BLOCK_SIZE   4
> > > +#define PAB_REG_BLOCK_SIZE               16
> > > +#define PAB_EXT_REG_BLOCK_SIZE           4
> > >
> > > -#define PAB_REG_ADDR(offset, win) (offset + (win *
> > > PAB_REG_BLOCK_SIZE)) -#define PAB_EXT_REG_ADDR(offset, win) (offset
> > +
> > > (win * PAB_EXT_REG_BLOCK_SIZE))
> > > +#define PAB_REG_ADDR(offset, win)        \
> > > + (offset + (win * PAB_REG_BLOCK_SIZE))
> > > +#define PAB_EXT_REG_ADDR(offset, win)    \
> > > + (offset + (win * PAB_EXT_REG_BLOCK_SIZE))
> > >
> > > -#define LTSSM_STATUS             0x0404
> > > -#define  LTSSM_STATUS_L0_MASK    0x3f
> > > -#define  LTSSM_STATUS_L0 0x2d
> > > +#define LTSSM_STATUS                     0x0404
> > > +#define  LTSSM_STATUS_L0_MASK            0x3f
> > > +#define  LTSSM_STATUS_L0         0x2d
> > >
> > > -#define PAB_CTRL         0x0808
> > > -#define  AMBA_PIO_ENABLE_SHIFT   0
> > > -#define  PEX_PIO_ENABLE_SHIFT    1
> > > -#define  PAGE_SEL_SHIFT  13
> > > -#define  PAGE_SEL_MASK           0x3f
> > > -#define  PAGE_LO_MASK            0x3ff
> > > -#define  PAGE_SEL_OFFSET_SHIFT   10
> > > +#define PAB_CTRL                 0x0808
> > > +#define  AMBA_PIO_ENABLE_SHIFT           0
> > > +#define  PEX_PIO_ENABLE_SHIFT            1
> > > +#define  PAGE_SEL_SHIFT                  13
> > > +#define  PAGE_SEL_MASK                   0x3f
> > > +#define  PAGE_LO_MASK                    0x3ff
> > > +#define  PAGE_SEL_OFFSET_SHIFT           10
> > >
> > > -#define PAB_AXI_PIO_CTRL 0x0840
> > > -#define  APIO_EN_MASK            0xf
> > > +#define PAB_AXI_PIO_CTRL         0x0840
> > > +#define  APIO_EN_MASK                    0xf
> > >
> > > -#define PAB_PEX_PIO_CTRL 0x08c0
> > > -#define  PIO_ENABLE_SHIFT        0
> > > +#define PAB_PEX_PIO_CTRL         0x08c0
> > > +#define  PIO_ENABLE_SHIFT                0
> > >
> > >  #define PAB_INTP_AMBA_MISC_ENB           0x0b0c
> > > -#define PAB_INTP_AMBA_MISC_STAT  0x0b1c
> > > +#define PAB_INTP_AMBA_MISC_STAT          0x0b1c
> > >  #define  PAB_INTP_INTX_MASK              0x01e0
> > >  #define  PAB_INTP_MSI_MASK               0x8
> > >
> > > -#define PAB_AXI_AMAP_CTRL(win)   PAB_REG_ADDR(0x0ba0, win)
> > > -#define  WIN_ENABLE_SHIFT        0
> > > -#define  WIN_TYPE_SHIFT  1
> > > +#define PAB_AXI_AMAP_CTRL(win)           PAB_REG_ADDR(0x0ba0, win)
> > > +#define  WIN_ENABLE_SHIFT                0
> > > +#define  WIN_TYPE_SHIFT                  1
> > >
> > >  #define PAB_EXT_AXI_AMAP_SIZE(win)       PAB_EXT_REG_ADDR(0xbaf0,
> > win)
> > >
> > > @@ -70,16 +72,16 @@
> > >  #define  AXI_WINDOW_ALIGN_MASK           3
> > >
> > >  #define PAB_AXI_AMAP_PEX_WIN_L(win)      PAB_REG_ADDR(0x0ba8,
> > win)
> > > -#define  PAB_BUS_SHIFT           24
> > > -#define  PAB_DEVICE_SHIFT        19
> > > -#define  PAB_FUNCTION_SHIFT      16
> > > +#define  PAB_BUS_SHIFT                   24
> > > +#define  PAB_DEVICE_SHIFT                19
> > > +#define  PAB_FUNCTION_SHIFT              16
> > >
> > >  #define PAB_AXI_AMAP_PEX_WIN_H(win)      PAB_REG_ADDR(0x0bac,
> > win)
> > >  #define PAB_INTP_AXI_PIO_CLASS           0x474
> > >
> > > -#define PAB_PEX_AMAP_CTRL(win)   PAB_REG_ADDR(0x4ba0, win)
> > > -#define  AMAP_CTRL_EN_SHIFT      0
> > > -#define  AMAP_CTRL_TYPE_SHIFT    1
> > > +#define PAB_PEX_AMAP_CTRL(win)           PAB_REG_ADDR(0x4ba0,
> > win)
> > > +#define  AMAP_CTRL_EN_SHIFT              0
> > > +#define  AMAP_CTRL_TYPE_SHIFT            1
> > >
> > >  #define PAB_EXT_PEX_AMAP_SIZEN(win)      PAB_EXT_REG_ADDR(0xbef0,
> > win)
> > >  #define PAB_PEX_AMAP_AXI_WIN(win)        PAB_REG_ADDR(0x4ba4,
> > win)
> > > @@ -87,39 +89,39 @@
> > >  #define PAB_PEX_AMAP_PEX_WIN_H(win)      PAB_REG_ADDR(0x4bac,
> > win)
> > >
> > >  /* starting offset of INTX bits in status register */
> > > -#define PAB_INTX_START   5
> > > +#define PAB_INTX_START                   5
> > >
> > >  /* supported number of MSI interrupts */
> > > -#define PCI_NUM_MSI      16
> > > +#define PCI_NUM_MSI                      16
> > >
> > >  /* MSI registers */
> > > -#define MSI_BASE_LO_OFFSET       0x04
> > > -#define MSI_BASE_HI_OFFSET       0x08
> > > -#define MSI_SIZE_OFFSET  0x0c
> > > -#define MSI_ENABLE_OFFSET        0x14
> > > -#define MSI_STATUS_OFFSET        0x18
> > > -#define MSI_DATA_OFFSET  0x20
> > > -#define MSI_ADDR_L_OFFSET        0x24
> > > -#define MSI_ADDR_H_OFFSET        0x28
> > > +#define MSI_BASE_LO_OFFSET               0x04
> > > +#define MSI_BASE_HI_OFFSET               0x08
> > > +#define MSI_SIZE_OFFSET                  0x0c
> > > +#define MSI_ENABLE_OFFSET                0x14
> > > +#define MSI_STATUS_OFFSET                0x18
> > > +#define MSI_DATA_OFFSET                  0x20
> > > +#define MSI_ADDR_L_OFFSET                0x24
> > > +#define MSI_ADDR_H_OFFSET                0x28
> > >
> > >  /* outbound and inbound window definitions */
> > > -#define WIN_NUM_0                0
> > > -#define WIN_NUM_1                1
> > > -#define CFG_WINDOW_TYPE  0
> > > -#define IO_WINDOW_TYPE           1
> > > -#define MEM_WINDOW_TYPE  2
> > > -#define IB_WIN_SIZE              ((u64)256 * 1024 * 1024 * 1024)
> > > -#define MAX_PIO_WINDOWS  8
> > > +#define WIN_NUM_0                        0
> > > +#define WIN_NUM_1                        1
> > > +#define CFG_WINDOW_TYPE                  0
> > > +#define IO_WINDOW_TYPE                   1
> > > +#define MEM_WINDOW_TYPE                  2
> > > +#define IB_WIN_SIZE                      ((u64)256 * 1024 * 1024 * 1024)
> > > +#define MAX_PIO_WINDOWS                  8
> > >
> > >  /* Parameters for the waiting for link up routine */
> > > -#define LINK_WAIT_MAX_RETRIES    10
> > > -#define LINK_WAIT_MIN    90000
> > > -#define LINK_WAIT_MAX    100000
> > > +#define LINK_WAIT_MAX_RETRIES            10
> > > +#define LINK_WAIT_MIN                    90000
> > > +#define LINK_WAIT_MAX                    100000
> > >
> > > -#define PAGED_ADDR_BNDRY                 0xc00
> > > -#define OFFSET_TO_PAGE_ADDR(off)         \
> > > +#define PAGED_ADDR_BNDRY         0xc00
> > > +#define OFFSET_TO_PAGE_ADDR(off) \
> > >   ((off & PAGE_LO_MASK) | PAGED_ADDR_BNDRY)
> > > -#define OFFSET_TO_PAGE_IDX(off)                  \
> > > +#define OFFSET_TO_PAGE_IDX(off)          \
> > >   ((off >> PAGE_SEL_OFFSET_SHIFT) & PAGE_SEL_MASK)
> > >
> > >  struct mobiveil_msi {                    /* MSI information */
> > > @@ -297,14 +299,14 @@ static void __iomem
> > *mobiveil_pcie_map_bus(struct pci_bus *bus,
> > >                                   unsigned int devfn, int where)
> > >  {
> > >   struct mobiveil_pcie *pcie = bus->sysdata;
> > > + u32 value;
> > >
> > >   if (!mobiveil_pcie_valid_device(bus, devfn))
> > >           return NULL;
> > >
> > > - if (bus->number == pcie->root_bus_nr) {
> > > -         /* RC config access */
> > > + /* RC config access */
> > > + if (bus->number == pcie->root_bus_nr)
> > >           return pcie->csr_axi_slave_base + where;
> > > - }
> > >
> > >   /*
> > >    * EP config access (in Config/APIO space) @@ -312,10 +314,12 @@
> > > static void __iomem *mobiveil_pcie_map_bus(struct pci_bus *bus,
> > >    * (BDF) in PAB_AXI_AMAP_PEX_WIN_L0 Register.
> > >    * Relies on pci_lock serialization
> > >    */
> > > - csr_writel(pcie, bus->number << PAB_BUS_SHIFT |
> > > -                 PCI_SLOT(devfn) << PAB_DEVICE_SHIFT |
> > > -                 PCI_FUNC(devfn) << PAB_FUNCTION_SHIFT,
> > > -                 PAB_AXI_AMAP_PEX_WIN_L(WIN_NUM_0));
> > > + value = bus->number << PAB_BUS_SHIFT |
> > > +         PCI_SLOT(devfn) << PAB_DEVICE_SHIFT |
> > > +         PCI_FUNC(devfn) << PAB_FUNCTION_SHIFT;
> > > +
> > > + csr_writel(pcie, value, PAB_AXI_AMAP_PEX_WIN_L(WIN_NUM_0));
> > > +
> > >   return pcie->config_axi_slave_base + where;  }
> > >
> > > @@ -350,22 +354,22 @@ static void mobiveil_pcie_isr(struct irq_desc
> > > *desc)
> > >
> > >   /* Handle INTx */
> > >   if (intr_status & PAB_INTP_INTX_MASK) {
> > > -         shifted_status = csr_readl(pcie, PAB_INTP_AMBA_MISC_STAT) >>
> > > -                 PAB_INTX_START;
> > > +         shifted_status = csr_readl(pcie, PAB_INTP_AMBA_MISC_STAT);
> > > +         shifted_status >>= PAB_INTX_START;
> > >           do {
> > >                   for_each_set_bit(bit, &shifted_status, PCI_NUM_INTX) {
> > >                           virq = irq_find_mapping(pcie->intx_domain,
> > > -                                         bit + 1);
> > > +                                                 bit + 1);
> > >                           if (virq)
> > >                                   generic_handle_irq(virq);
> > >                           else
> > > -                                 dev_err_ratelimited(dev,
> > > -                                         "unexpected IRQ, INT%d\n", bit);
> > > +                                 dev_err_ratelimited(dev, "unexpected 
> > > IRQ,
> > INT%d\n",
> > > +                                                     bit);
> > >
> > >                           /* clear interrupt */
> > >                           csr_writel(pcie,
> > > -                                 shifted_status << PAB_INTX_START,
> > > -                                 PAB_INTP_AMBA_MISC_STAT);
> > > +                                    shifted_status << PAB_INTX_START,
> > > +                                    PAB_INTP_AMBA_MISC_STAT);
> > >                   }
> > >           } while ((shifted_status >> PAB_INTX_START) != 0);
> > >   }
> > > @@ -375,8 +379,7 @@ static void mobiveil_pcie_isr(struct irq_desc
> > > *desc)
> > >
> > >   /* handle MSI interrupts */
> > >   while (msi_status & 1) {
> > > -         msi_data = readl_relaxed(pcie->apb_csr_base
> > > -                         + MSI_DATA_OFFSET);
> > > +         msi_data = readl_relaxed(pcie->apb_csr_base +
> > MSI_DATA_OFFSET);
> > >
> > >           /*
> > >            * MSI_STATUS_OFFSET register gets updated to zero @@ -385,18
> > > +388,18 @@ static void mobiveil_pcie_isr(struct irq_desc *desc)
> > >            * two dummy reads.
> > >            */
> > >           msi_addr_lo = readl_relaxed(pcie->apb_csr_base +
> > > -                         MSI_ADDR_L_OFFSET);
> > > +                                     MSI_ADDR_L_OFFSET);
> > >           msi_addr_hi = readl_relaxed(pcie->apb_csr_base +
> > > -                         MSI_ADDR_H_OFFSET);
> > > +                                     MSI_ADDR_H_OFFSET);
> > >           dev_dbg(dev, "MSI registers, data: %08x, addr: %08x:%08x\n",
> > > -                         msi_data, msi_addr_hi, msi_addr_lo);
> > > +                 msi_data, msi_addr_hi, msi_addr_lo);
> > >
> > >           virq = irq_find_mapping(msi->dev_domain, msi_data);
> > >           if (virq)
> > >                   generic_handle_irq(virq);
> > >
> > >           msi_status = readl_relaxed(pcie->apb_csr_base +
> > > -                         MSI_STATUS_OFFSET);
> > > +                                    MSI_STATUS_OFFSET);
> > >   }
> > >
> > >   /* Clear the interrupt status */
> > > @@ -413,7 +416,7 @@ static int mobiveil_pcie_parse_dt(struct
> > > mobiveil_pcie *pcie)
> > >
> > >   /* map config resource */
> > >   res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
> > > -                 "config_axi_slave");
> > > +                                    "config_axi_slave");
> > >   pcie->config_axi_slave_base = devm_pci_remap_cfg_resource(dev,
> > res);
> > >   if (IS_ERR(pcie->config_axi_slave_base))
> > >           return PTR_ERR(pcie->config_axi_slave_base);
> > > @@ -421,7 +424,7 @@ static int mobiveil_pcie_parse_dt(struct
> > > mobiveil_pcie *pcie)
> > >
> > >   /* map csr resource */
> > >   res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
> > > -                 "csr_axi_slave");
> > > +                                    "csr_axi_slave");
> > >   pcie->csr_axi_slave_base = devm_pci_remap_cfg_resource(dev, res);
> > >   if (IS_ERR(pcie->csr_axi_slave_base))
> > >           return PTR_ERR(pcie->csr_axi_slave_base);
> > > @@ -452,7 +455,7 @@ static int mobiveil_pcie_parse_dt(struct
> > > mobiveil_pcie *pcie)  }
> > >
> > >  static void program_ib_windows(struct mobiveil_pcie *pcie, int
> > win_num,
> > > -         int pci_addr, u32 type, u64 size)
> > > +                        int pci_addr, u32 type, u64 size)
> > >  {
> > >   int pio_ctrl_val;
> > >   int amap_ctrl_dw;
> > > @@ -465,19 +468,20 @@ static void program_ib_windows(struct
> > mobiveil_pcie *pcie, int win_num,
> > >   }
> > >
> > >   pio_ctrl_val = csr_readl(pcie, PAB_PEX_PIO_CTRL);
> > > - csr_writel(pcie,
> > > -         pio_ctrl_val | (1 << PIO_ENABLE_SHIFT), PAB_PEX_PIO_CTRL);
> > > - amap_ctrl_dw = csr_readl(pcie, PAB_PEX_AMAP_CTRL(win_num));
> > > - amap_ctrl_dw = (amap_ctrl_dw | (type << AMAP_CTRL_TYPE_SHIFT));
> > > - amap_ctrl_dw = (amap_ctrl_dw | (1 << AMAP_CTRL_EN_SHIFT));
> > > + pio_ctrl_val |= 1 << PIO_ENABLE_SHIFT;
> > > + csr_writel(pcie, pio_ctrl_val, PAB_PEX_PIO_CTRL);
> > >
> > > - csr_writel(pcie, amap_ctrl_dw | lower_32_bits(size64),
> > > -            PAB_PEX_AMAP_CTRL(win_num));
> > > + amap_ctrl_dw = csr_readl(pcie, PAB_PEX_AMAP_CTRL(win_num));
> > > + amap_ctrl_dw |= (type << AMAP_CTRL_TYPE_SHIFT) |
> > > +                 (1 << AMAP_CTRL_EN_SHIFT) |
> > > +                 lower_32_bits(size64);
> > > + csr_writel(pcie, amap_ctrl_dw, PAB_PEX_AMAP_CTRL(win_num));
> > >
> > >   csr_writel(pcie, upper_32_bits(size64),
> > >              PAB_EXT_PEX_AMAP_SIZEN(win_num));
> > >
> > >   csr_writel(pcie, pci_addr, PAB_PEX_AMAP_AXI_WIN(win_num));
> > > +
> > >   csr_writel(pcie, pci_addr, PAB_PEX_AMAP_PEX_WIN_L(win_num));
> > >   csr_writel(pcie, 0, PAB_PEX_AMAP_PEX_WIN_H(win_num));  } @@
> > -486,7
> > > +490,8 @@ static void program_ib_windows(struct mobiveil_pcie *pcie,
> > int win_num,
> > >   * routine to program the outbound windows
> > >   */
> > >  static void program_ob_windows(struct mobiveil_pcie *pcie, int
> > win_num,
> > > -         u64 cpu_addr, u64 pci_addr, u32 config_io_bit, u64 size)
> > > +                        u64 cpu_addr, u64 pci_addr,
> > > +                        u32 config_io_bit, u64 size)
> > >  {
> > >
> > >   u32 value, type;
> > > @@ -505,7 +510,7 @@ static void program_ob_windows(struct
> > mobiveil_pcie *pcie, int win_num,
> > >   type = config_io_bit;
> > >   value = csr_readl(pcie, PAB_AXI_AMAP_CTRL(win_num));
> > >   csr_writel(pcie, 1 << WIN_ENABLE_SHIFT | type << WIN_TYPE_SHIFT |
> > > -                 lower_32_bits(size64), PAB_AXI_AMAP_CTRL(win_num));
> > > +            lower_32_bits(size64), PAB_AXI_AMAP_CTRL(win_num));
> > >
> > >   csr_writel(pcie, upper_32_bits(size64),
> > > PAB_EXT_AXI_AMAP_SIZE(win_num));
> > >
> > > @@ -515,14 +520,14 @@ static void program_ob_windows(struct
> > mobiveil_pcie *pcie, int win_num,
> > >    */
> > >   value = csr_readl(pcie, PAB_AXI_AMAP_AXI_WIN(win_num));
> > >   csr_writel(pcie, cpu_addr & (~AXI_WINDOW_ALIGN_MASK),
> > > -                 PAB_AXI_AMAP_AXI_WIN(win_num));
> > > +            PAB_AXI_AMAP_AXI_WIN(win_num));
> > >
> > >   value = csr_readl(pcie, PAB_AXI_AMAP_PEX_WIN_H(win_num));
> > >
> > >   csr_writel(pcie, lower_32_bits(pci_addr),
> > > -                 PAB_AXI_AMAP_PEX_WIN_L(win_num));
> > > +            PAB_AXI_AMAP_PEX_WIN_L(win_num));
> > >   csr_writel(pcie, upper_32_bits(pci_addr),
> > > -                 PAB_AXI_AMAP_PEX_WIN_H(win_num));
> > > +            PAB_AXI_AMAP_PEX_WIN_H(win_num));
> > >
> > >   pcie->ob_wins_configured++;
> > >  }
> > > @@ -538,7 +543,9 @@ static int mobiveil_bringup_link(struct
> > > mobiveil_pcie *pcie)
> > >
> > >           usleep_range(LINK_WAIT_MIN, LINK_WAIT_MAX);
> > >   }
> > > +
> > >   dev_err(&pcie->pdev->dev, "link never came up\n");
> > > +
> > >   return -ETIMEDOUT;
> > >  }
> > >
> > > @@ -551,16 +558,16 @@ static void mobiveil_pcie_enable_msi(struct
> > mobiveil_pcie *pcie)
> > >   msi->msi_pages_phys = (phys_addr_t)msg_addr;
> > >
> > >   writel_relaxed(lower_32_bits(msg_addr),
> > > -         pcie->apb_csr_base + MSI_BASE_LO_OFFSET);
> > > +                pcie->apb_csr_base + MSI_BASE_LO_OFFSET);
> > >   writel_relaxed(upper_32_bits(msg_addr),
> > > -         pcie->apb_csr_base + MSI_BASE_HI_OFFSET);
> > > +                pcie->apb_csr_base + MSI_BASE_HI_OFFSET);
> > >   writel_relaxed(4096, pcie->apb_csr_base + MSI_SIZE_OFFSET);
> > >   writel_relaxed(1, pcie->apb_csr_base + MSI_ENABLE_OFFSET);  }
> > >
> > >  static int mobiveil_host_init(struct mobiveil_pcie *pcie)  {
> > > - u32 value, pab_ctrl, type = 0;
> > > + u32 value, pab_ctrl, type;
> > >   int err;
> > >   struct resource_entry *win, *tmp;
> > >
> > > @@ -575,26 +582,27 @@ static int mobiveil_host_init(struct
> > mobiveil_pcie *pcie)
> > >    * Space
> > >    */
> > >   value = csr_readl(pcie, PCI_COMMAND);
> > > - csr_writel(pcie, value | PCI_COMMAND_IO |
> > PCI_COMMAND_MEMORY |
> > > -         PCI_COMMAND_MASTER, PCI_COMMAND);
> > > + value |= PCI_COMMAND_IO | PCI_COMMAND_MEMORY |
> > PCI_COMMAND_MASTER;
> > > + csr_writel(pcie, value, PCI_COMMAND);
> > >
> > >   /*
> > >    * program PIO Enable Bit to 1 (and PEX PIO Enable to 1) in PAB_CTRL
> > >    * register
> > >    */
> > >   pab_ctrl = csr_readl(pcie, PAB_CTRL);
> > > - csr_writel(pcie, pab_ctrl | (1 << AMBA_PIO_ENABLE_SHIFT) |
> > > -         (1 << PEX_PIO_ENABLE_SHIFT), PAB_CTRL);
> > > + pab_ctrl |= (1 << AMBA_PIO_ENABLE_SHIFT) | (1 <<
> > PEX_PIO_ENABLE_SHIFT);
> > > + csr_writel(pcie, pab_ctrl, PAB_CTRL);
> > >
> > >   csr_writel(pcie, (PAB_INTP_INTX_MASK | PAB_INTP_MSI_MASK),
> > > -         PAB_INTP_AMBA_MISC_ENB);
> > > +            PAB_INTP_AMBA_MISC_ENB);
> > >
> > >   /*
> > >    * program PIO Enable Bit to 1 and Config Window Enable Bit to 1 in
> > >    * PAB_AXI_PIO_CTRL Register
> > >    */
> > >   value = csr_readl(pcie, PAB_AXI_PIO_CTRL);
> > > - csr_writel(pcie, value | APIO_EN_MASK, PAB_AXI_PIO_CTRL);
> > > + value |= APIO_EN_MASK;
> > > + csr_writel(pcie, value, PAB_AXI_PIO_CTRL);
> > >
> > >   /*
> > >    * we'll program one outbound window for config reads and @@
> > -605,25
> > > +613,25 @@ static int mobiveil_host_init(struct mobiveil_pcie *pcie)
> > >
> > >   /* config outbound translation window */
> > >   program_ob_windows(pcie, pcie->ob_wins_configured,
> > > -                 pcie->ob_io_res->start, 0, CFG_WINDOW_TYPE,
> > > -                 resource_size(pcie->ob_io_res));
> > > +                    pcie->ob_io_res->start, 0, CFG_WINDOW_TYPE,
> > > +                    resource_size(pcie->ob_io_res));
> > >
> > >   /* memory inbound translation window */
> > >   program_ib_windows(pcie, WIN_NUM_1, 0, MEM_WINDOW_TYPE,
> > > IB_WIN_SIZE);
> > >
> > >   /* Get the I/O and memory ranges from DT */
> > >   resource_list_for_each_entry_safe(win, tmp, &pcie->resources) {
> > > -         type = 0;
> > >           if (resource_type(win->res) == IORESOURCE_MEM)
> > >                   type = MEM_WINDOW_TYPE;
> > > -         if (resource_type(win->res) == IORESOURCE_IO)
> > > +         else if (resource_type(win->res) == IORESOURCE_IO)
> > >                   type = IO_WINDOW_TYPE;
> > > -         if (type) {
> > > -                 /* configure outbound translation window */
> > > -                 program_ob_windows(pcie, pcie->ob_wins_configured,
> > > -                         win->res->start, 0, type,
> > > -                         resource_size(win->res));
> > > -         }
> > > +         else
> > > +                 continue;
> > > +
> > > +         /* configure outbound translation window */
> > > +         program_ob_windows(pcie, pcie->ob_wins_configured,
> > > +                            win->res->start, 0, type,
> > > +                            resource_size(win->res));
> > >   }
> > >
> > >   /* setup MSI hardware registers */
> > > @@ -643,7 +651,8 @@ static void mobiveil_mask_intx_irq(struct irq_data
> > *data)
> > >   mask = 1 << ((data->hwirq + PAB_INTX_START) - 1);
> > >   raw_spin_lock_irqsave(&pcie->intx_mask_lock, flags);
> > >   shifted_val = csr_readl(pcie, PAB_INTP_AMBA_MISC_ENB);
> > > - csr_writel(pcie, (shifted_val & (~mask)), PAB_INTP_AMBA_MISC_ENB);
> > > + shifted_val &= ~mask;
> > > + csr_writel(pcie, shifted_val, PAB_INTP_AMBA_MISC_ENB);
> > >   raw_spin_unlock_irqrestore(&pcie->intx_mask_lock, flags);  }
> > >
> > > @@ -658,7 +667,8 @@ static void mobiveil_unmask_intx_irq(struct
> > irq_data *data)
> > >   mask = 1 << ((data->hwirq + PAB_INTX_START) - 1);
> > >   raw_spin_lock_irqsave(&pcie->intx_mask_lock, flags);
> > >   shifted_val = csr_readl(pcie, PAB_INTP_AMBA_MISC_ENB);
> > > - csr_writel(pcie, (shifted_val | mask), PAB_INTP_AMBA_MISC_ENB);
> > > + shifted_val |= mask;
> > > + csr_writel(pcie, shifted_val, PAB_INTP_AMBA_MISC_ENB);
> > >   raw_spin_unlock_irqrestore(&pcie->intx_mask_lock, flags);  }
> > >
> > > @@ -672,10 +682,11 @@ static struct irq_chip intx_irq_chip = {
> > >
> > >  /* routine to setup the INTx related data */  static int
> > > mobiveil_pcie_intx_map(struct irq_domain *domain, unsigned int irq,
> > > -         irq_hw_number_t hwirq)
> > > +                           irq_hw_number_t hwirq)
> > >  {
> > >   irq_set_chip_and_handler(irq, &intx_irq_chip, handle_level_irq);
> > >   irq_set_chip_data(irq, domain->host_data);
> > > +
> > >   return 0;
> > >  }
> > >
> > > @@ -692,7 +703,7 @@ static struct irq_chip mobiveil_msi_irq_chip = {
> > >
> > >  static struct msi_domain_info mobiveil_msi_domain_info = {
> > >   .flags  = (MSI_FLAG_USE_DEF_DOM_OPS |
> > MSI_FLAG_USE_DEF_CHIP_OPS |
> > > -         MSI_FLAG_MULTI_PCI_MSI | MSI_FLAG_PCI_MSIX),
> > > +            MSI_FLAG_MULTI_PCI_MSI | MSI_FLAG_PCI_MSIX),
> > >   .chip   = &mobiveil_msi_irq_chip,
> > >  };
> > >
> > > @@ -710,7 +721,7 @@ static void mobiveil_compose_msi_msg(struct
> > > irq_data *data, struct msi_msg *msg)  }
> > >
> > >  static int mobiveil_msi_set_affinity(struct irq_data *irq_data,
> > > -         const struct cpumask *mask, bool force)
> > > +                              const struct cpumask *mask, bool force)
> > >  {
> > >   return -EINVAL;
> > >  }
> > > @@ -722,7 +733,8 @@ static struct irq_chip
> > > mobiveil_msi_bottom_irq_chip = {  };
> > >
> > >  static int mobiveil_irq_msi_domain_alloc(struct irq_domain *domain,
> > > -         unsigned int virq, unsigned int nr_irqs, void *args)
> > > +                                  unsigned int virq,
> > > +                                  unsigned int nr_irqs, void *args)
> > >  {
> > >   struct mobiveil_pcie *pcie = domain->host_data;
> > >   struct mobiveil_msi *msi = &pcie->msi; @@ -742,13 +754,13 @@ static
> > > int mobiveil_irq_msi_domain_alloc(struct irq_domain *domain,
> > >   mutex_unlock(&msi->lock);
> > >
> > >   irq_domain_set_info(domain, virq, bit,
> > &mobiveil_msi_bottom_irq_chip,
> > > -                         domain->host_data, handle_level_irq,
> > > -                         NULL, NULL);
> > > +                     domain->host_data, handle_level_irq, NULL, NULL);
> > >   return 0;
> > >  }
> > >
> > >  static void mobiveil_irq_msi_domain_free(struct irq_domain *domain,
> > > -         unsigned int virq, unsigned int nr_irqs)
> > > +                                  unsigned int virq,
> > > +                                  unsigned int nr_irqs)
> > >  {
> > >   struct irq_data *d = irq_domain_get_irq_data(domain, virq);
> > >   struct mobiveil_pcie *pcie = irq_data_get_irq_chip_data(d); @@
> > > -756,12 +768,11 @@ static void mobiveil_irq_msi_domain_free(struct
> > > irq_domain *domain,
> > >
> > >   mutex_lock(&msi->lock);
> > >
> > > - if (!test_bit(d->hwirq, msi->msi_irq_in_use)) {
> > > + if (!test_bit(d->hwirq, msi->msi_irq_in_use))
> > >           dev_err(&pcie->pdev->dev, "trying to free unused MSI#%lu\n",
> > >                   d->hwirq);
> > > - } else {
> > > + else
> > >           __clear_bit(d->hwirq, msi->msi_irq_in_use);
> > > - }
> > >
> > >   mutex_unlock(&msi->lock);
> > >  }
> > > @@ -785,12 +796,14 @@ static int mobiveil_allocate_msi_domains(struct
> > mobiveil_pcie *pcie)
> > >   }
> > >
> > >   msi->msi_domain = pci_msi_create_irq_domain(fwnode,
> > > -                         &mobiveil_msi_domain_info, msi->dev_domain);
> > > +                                             &mobiveil_msi_domain_info,
> > > +                                             msi->dev_domain);
> > >   if (!msi->msi_domain) {
> > >           dev_err(dev, "failed to create MSI domain\n");
> > >           irq_domain_remove(msi->dev_domain);
> > >           return -ENOMEM;
> > >   }
> > > +
> > >   return 0;
> > >  }
> > >
> > > @@ -801,8 +814,8 @@ static int mobiveil_pcie_init_irq_domain(struct
> > mobiveil_pcie *pcie)
> > >   int ret;
> > >
> > >   /* setup INTx */
> > > - pcie->intx_domain = irq_domain_add_linear(node,
> > > -                         PCI_NUM_INTX, &intx_domain_ops, pcie);
> > > + pcie->intx_domain = irq_domain_add_linear(node, PCI_NUM_INTX,
> > > +                                           &intx_domain_ops, pcie);
> > >
> > >   if (!pcie->intx_domain) {
> > >           dev_err(dev, "Failed to get a INTx IRQ domain\n"); @@ -917,10
> > > +930,10 @@ MODULE_DEVICE_TABLE(of, mobiveil_pcie_of_match);
> > static
> > > struct platform_driver mobiveil_pcie_driver = {
> > >   .probe = mobiveil_pcie_probe,
> > >   .driver = {
> > > -                 .name = "mobiveil-pcie",
> > > -                 .of_match_table = mobiveil_pcie_of_match,
> > > -                 .suppress_bind_attrs = true,
> > > -         },
> > > +         .name = "mobiveil-pcie",
> > > +         .of_match_table = mobiveil_pcie_of_match,
> > > +         .suppress_bind_attrs = true,
> > > + },
> > >  };
> > >
> > >  builtin_platform_driver(mobiveil_pcie_driver);
> > > --
> > > 2.17.1
> > >

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