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References: <20190129080926.36773-1-Zhiqiang.Hou@nxp.com> <20190129080926.36773-3-Zhiqiang.Hou@nxp.com>
In-Reply-To: <20190129080926.36773-3-Zhiqiang.Hou@nxp.com>
From:   Subrahmanya Lingappa <l.subrahmanya@mobiveil.co.in>
Date:   Tue, 5 Feb 2019 11:18:07 +0530
Message-ID: <CAFZiPx0Uebtst2oVy31LJmsBAf8Y-AW6zM9_etvh3gp4QES8kw@mail.gmail.com>
Subject: Re: [PATCHv3 02/27] PCI: mobiveil: format the code without function change
To:     "Z.q. Hou" <zhiqiang.hou@nxp.com>
Cc:     "linux-pci@vger.kernel.org" <linux-pci@vger.kernel.org>,
        "linux-arm-kernel@lists.infradead.org" 
        <linux-arm-kernel@lists.infradead.org>,
        "devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        "bhelgaas@google.com" <bhelgaas@google.com>,
        "robh+dt@kernel.org" <robh+dt@kernel.org>,
        "mark.rutland@arm.com" <mark.rutland@arm.com>,
        "shawnguo@kernel.org" <shawnguo@kernel.org>,
        Leo Li <leoyang.li@nxp.com>,
        "lorenzo.pieralisi@arm.com" <lorenzo.pieralisi@arm.com>,
        "catalin.marinas@arm.com" <catalin.marinas@arm.com>,
        "will.deacon@arm.com" <will.deacon@arm.com>,
        Mingkai Hu <mingkai.hu@nxp.com>,
        "M.h. Lian" <minghuan.lian@nxp.com>,
        Xiaowei Bao <xiaowei.bao@nxp.com>
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Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

Zhiqiang,

On Tue, Jan 29, 2019 at 1:38 PM Z.q. Hou <zhiqiang.hou@nxp.com> wrote:
>
> From: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
>
> Just format the code without functionality change.
>
> Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
> Reviewed-by: Minghuan Lian <Minghuan.Lian@nxp.com>
> ---
> V3:
>  - No change
>
>  drivers/pci/controller/pcie-mobiveil.c | 261 +++++++++++++------------
>  1 file changed, 137 insertions(+), 124 deletions(-)
>
> 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
above line seems to have an extra tab which makes it not aligned with
lines above.

> +#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
please check the extra tab above
>
>  #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
size and data offset macros have extra tabs?
>
>  /* 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
>

Thanks.