Re: [PATCHv5 02/20] PCI: mobiveil: Format the code without functionality change

From: Lorenzo Pieralisi
Date: Wed Jul 03 2019 - 11:19:13 EST

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In reply to: Z.q. Hou: "RE: [PATCHv5 02/20] PCI: mobiveil: Format the code without functionality change"
Next in thread: Lorenzo Pieralisi: "Re: [PATCHv5 02/20] PCI: mobiveil: Format the code without functionality change"
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On Fri, Apr 12, 2019 at 08:35:24AM +0000, Z.q. Hou wrote:
> From: Hou Zhiqiang <Zhiqiang.Hou@xxxxxxx>
>
> Just format the code without functionality change.
>
> Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@xxxxxxx>
> Reviewed-by: Minghuan Lian <Minghuan.Lian@xxxxxxx>
> ---
> V5:
> - Retouched the subject.
>
> drivers/pci/controller/pcie-mobiveil.c | 261 +++++++++++++------------
> 1 file changed, 137 insertions(+), 124 deletions(-)

Ok, dropping this patch means that everything else should be
rebased. So what I am going to do:

- I will publish a branch (pci/mobiveil) where I added the patches
that are ready to be merged with commit logs rewritten; this patch
is part of it but in the final version it must be split as requested.
- You have to split this patch and the other patches I requested
you to split but do NOT modify the patches with my commit logs
rewritten in pci/mobiveil, it took me time to rewrite them.

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.

If you have any questions please ask, do not post patches
if there is something that is not clear.

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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