Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel os linux

PCI: ls-gen4: Rename ls_pcie_g4 to ls_g4_pcie

Rename struct ls_pcie_g4 to ls_g4_pcie to match the convention of
<driver>_pcie. No functional change intended.

Link: https://lore.kernel.org/r/20211223011054.1227810-14-helgaas@kernel.org
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>

+42 -42
+42 -42
drivers/pci/controller/mobiveil/pcie-layerscape-gen4.c
··· 34 34 #define PF_DBG_WE BIT(31) 35 35 #define PF_DBG_PABR BIT(27) 36 36 37 - #define to_ls_pcie_g4(x) platform_get_drvdata((x)->pdev) 37 + #define to_ls_g4_pcie(x) platform_get_drvdata((x)->pdev) 38 38 39 - struct ls_pcie_g4 { 39 + struct ls_g4_pcie { 40 40 struct mobiveil_pcie pci; 41 41 struct delayed_work dwork; 42 42 int irq; 43 43 }; 44 44 45 - static inline u32 ls_pcie_g4_pf_readl(struct ls_pcie_g4 *pcie, u32 off) 45 + static inline u32 ls_g4_pcie_pf_readl(struct ls_g4_pcie *pcie, u32 off) 46 46 { 47 47 return ioread32(pcie->pci.csr_axi_slave_base + PCIE_PF_OFF + off); 48 48 } 49 49 50 - static inline void ls_pcie_g4_pf_writel(struct ls_pcie_g4 *pcie, 50 + static inline void ls_g4_pcie_pf_writel(struct ls_g4_pcie *pcie, 51 51 u32 off, u32 val) 52 52 { 53 53 iowrite32(val, pcie->pci.csr_axi_slave_base + PCIE_PF_OFF + off); 54 54 } 55 55 56 - static int ls_pcie_g4_link_up(struct mobiveil_pcie *pci) 56 + static int ls_g4_pcie_link_up(struct mobiveil_pcie *pci) 57 57 { 58 - struct ls_pcie_g4 *pcie = to_ls_pcie_g4(pci); 58 + struct ls_g4_pcie *pcie = to_ls_g4_pcie(pci); 59 59 u32 state; 60 60 61 - state = ls_pcie_g4_pf_readl(pcie, PCIE_PF_DBG); 61 + state = ls_g4_pcie_pf_readl(pcie, PCIE_PF_DBG); 62 62 state = state & PF_DBG_LTSSM_MASK; 63 63 64 64 if (state == PF_DBG_LTSSM_L0) ··· 67 67 return 0; 68 68 } 69 69 70 - static void ls_pcie_g4_disable_interrupt(struct ls_pcie_g4 *pcie) 70 + static void ls_g4_pcie_disable_interrupt(struct ls_g4_pcie *pcie) 71 71 { 72 72 struct mobiveil_pcie *mv_pci = &pcie->pci; 73 73 74 74 mobiveil_csr_writel(mv_pci, 0, PAB_INTP_AMBA_MISC_ENB); 75 75 } 76 76 77 - static void ls_pcie_g4_enable_interrupt(struct ls_pcie_g4 *pcie) 77 + static void ls_g4_pcie_enable_interrupt(struct ls_g4_pcie *pcie) 78 78 { 79 79 struct mobiveil_pcie *mv_pci = &pcie->pci; 80 80 u32 val; ··· 87 87 mobiveil_csr_writel(mv_pci, val, PAB_INTP_AMBA_MISC_ENB); 88 88 } 89 89 90 - static int ls_pcie_g4_reinit_hw(struct ls_pcie_g4 *pcie) 90 + static int ls_g4_pcie_reinit_hw(struct ls_g4_pcie *pcie) 91 91 { 92 92 struct mobiveil_pcie *mv_pci = &pcie->pci; 93 93 struct device *dev = &mv_pci->pdev->dev; ··· 97 97 /* Poll for pab_csb_reset to set and PAB activity to clear */ 98 98 do { 99 99 usleep_range(10, 15); 100 - val = ls_pcie_g4_pf_readl(pcie, PCIE_PF_INT_STAT); 100 + val = ls_g4_pcie_pf_readl(pcie, PCIE_PF_INT_STAT); 101 101 act_stat = mobiveil_csr_readl(mv_pci, PAB_ACTIVITY_STAT); 102 102 } while (((val & PF_INT_STAT_PABRST) == 0 || act_stat) && to--); 103 103 if (to < 0) { ··· 106 106 } 107 107 108 108 /* clear PEX_RESET bit in PEX_PF0_DBG register */ 109 - val = ls_pcie_g4_pf_readl(pcie, PCIE_PF_DBG); 109 + val = ls_g4_pcie_pf_readl(pcie, PCIE_PF_DBG); 110 110 val |= PF_DBG_WE; 111 - ls_pcie_g4_pf_writel(pcie, PCIE_PF_DBG, val); 111 + ls_g4_pcie_pf_writel(pcie, PCIE_PF_DBG, val); 112 112 113 - val = ls_pcie_g4_pf_readl(pcie, PCIE_PF_DBG); 113 + val = ls_g4_pcie_pf_readl(pcie, PCIE_PF_DBG); 114 114 val |= PF_DBG_PABR; 115 - ls_pcie_g4_pf_writel(pcie, PCIE_PF_DBG, val); 115 + ls_g4_pcie_pf_writel(pcie, PCIE_PF_DBG, val); 116 116 117 - val = ls_pcie_g4_pf_readl(pcie, PCIE_PF_DBG); 117 + val = ls_g4_pcie_pf_readl(pcie, PCIE_PF_DBG); 118 118 val &= ~PF_DBG_WE; 119 - ls_pcie_g4_pf_writel(pcie, PCIE_PF_DBG, val); 119 + ls_g4_pcie_pf_writel(pcie, PCIE_PF_DBG, val); 120 120 121 121 mobiveil_host_init(mv_pci, true); 122 122 123 123 to = 100; 124 - while (!ls_pcie_g4_link_up(mv_pci) && to--) 124 + while (!ls_g4_pcie_link_up(mv_pci) && to--) 125 125 usleep_range(200, 250); 126 126 if (to < 0) { 127 127 dev_err(dev, "PCIe link training timeout\n"); ··· 131 131 return 0; 132 132 } 133 133 134 - static irqreturn_t ls_pcie_g4_isr(int irq, void *dev_id) 134 + static irqreturn_t ls_g4_pcie_isr(int irq, void *dev_id) 135 135 { 136 - struct ls_pcie_g4 *pcie = (struct ls_pcie_g4 *)dev_id; 136 + struct ls_g4_pcie *pcie = (struct ls_g4_pcie *)dev_id; 137 137 struct mobiveil_pcie *mv_pci = &pcie->pci; 138 138 u32 val; 139 139 ··· 142 142 return IRQ_NONE; 143 143 144 144 if (val & PAB_INTP_RESET) { 145 - ls_pcie_g4_disable_interrupt(pcie); 145 + ls_g4_pcie_disable_interrupt(pcie); 146 146 schedule_delayed_work(&pcie->dwork, msecs_to_jiffies(1)); 147 147 } 148 148 ··· 151 151 return IRQ_HANDLED; 152 152 } 153 153 154 - static int ls_pcie_g4_interrupt_init(struct mobiveil_pcie *mv_pci) 154 + static int ls_g4_pcie_interrupt_init(struct mobiveil_pcie *mv_pci) 155 155 { 156 - struct ls_pcie_g4 *pcie = to_ls_pcie_g4(mv_pci); 156 + struct ls_g4_pcie *pcie = to_ls_g4_pcie(mv_pci); 157 157 struct platform_device *pdev = mv_pci->pdev; 158 158 struct device *dev = &pdev->dev; 159 159 int ret; ··· 162 162 if (pcie->irq < 0) 163 163 return pcie->irq; 164 164 165 - ret = devm_request_irq(dev, pcie->irq, ls_pcie_g4_isr, 165 + ret = devm_request_irq(dev, pcie->irq, ls_g4_pcie_isr, 166 166 IRQF_SHARED, pdev->name, pcie); 167 167 if (ret) { 168 168 dev_err(dev, "Can't register PCIe IRQ, errno = %d\n", ret); ··· 172 172 return 0; 173 173 } 174 174 175 - static void ls_pcie_g4_reset(struct work_struct *work) 175 + static void ls_g4_pcie_reset(struct work_struct *work) 176 176 { 177 177 struct delayed_work *dwork = container_of(work, struct delayed_work, 178 178 work); 179 - struct ls_pcie_g4 *pcie = container_of(dwork, struct ls_pcie_g4, dwork); 179 + struct ls_g4_pcie *pcie = container_of(dwork, struct ls_g4_pcie, dwork); 180 180 struct mobiveil_pcie *mv_pci = &pcie->pci; 181 181 u16 ctrl; 182 182 ··· 184 184 ctrl &= ~PCI_BRIDGE_CTL_BUS_RESET; 185 185 mobiveil_csr_writew(mv_pci, ctrl, PCI_BRIDGE_CONTROL); 186 186 187 - if (!ls_pcie_g4_reinit_hw(pcie)) 187 + if (!ls_g4_pcie_reinit_hw(pcie)) 188 188 return; 189 189 190 - ls_pcie_g4_enable_interrupt(pcie); 190 + ls_g4_pcie_enable_interrupt(pcie); 191 191 } 192 192 193 - static struct mobiveil_rp_ops ls_pcie_g4_rp_ops = { 194 - .interrupt_init = ls_pcie_g4_interrupt_init, 193 + static struct mobiveil_rp_ops ls_g4_pcie_rp_ops = { 194 + .interrupt_init = ls_g4_pcie_interrupt_init, 195 195 }; 196 196 197 - static const struct mobiveil_pab_ops ls_pcie_g4_pab_ops = { 198 - .link_up = ls_pcie_g4_link_up, 197 + static const struct mobiveil_pab_ops ls_g4_pcie_pab_ops = { 198 + .link_up = ls_g4_pcie_link_up, 199 199 }; 200 200 201 - static int __init ls_pcie_g4_probe(struct platform_device *pdev) 201 + static int __init ls_g4_pcie_probe(struct platform_device *pdev) 202 202 { 203 203 struct device *dev = &pdev->dev; 204 204 struct pci_host_bridge *bridge; 205 205 struct mobiveil_pcie *mv_pci; 206 - struct ls_pcie_g4 *pcie; 206 + struct ls_g4_pcie *pcie; 207 207 struct device_node *np = dev->of_node; 208 208 int ret; 209 209 ··· 220 220 mv_pci = &pcie->pci; 221 221 222 222 mv_pci->pdev = pdev; 223 - mv_pci->ops = &ls_pcie_g4_pab_ops; 224 - mv_pci->rp.ops = &ls_pcie_g4_rp_ops; 223 + mv_pci->ops = &ls_g4_pcie_pab_ops; 224 + mv_pci->rp.ops = &ls_g4_pcie_rp_ops; 225 225 mv_pci->rp.bridge = bridge; 226 226 227 227 platform_set_drvdata(pdev, pcie); 228 228 229 - INIT_DELAYED_WORK(&pcie->dwork, ls_pcie_g4_reset); 229 + INIT_DELAYED_WORK(&pcie->dwork, ls_g4_pcie_reset); 230 230 231 231 ret = mobiveil_pcie_host_probe(mv_pci); 232 232 if (ret) { ··· 234 234 return ret; 235 235 } 236 236 237 - ls_pcie_g4_enable_interrupt(pcie); 237 + ls_g4_pcie_enable_interrupt(pcie); 238 238 239 239 return 0; 240 240 } 241 241 242 - static const struct of_device_id ls_pcie_g4_of_match[] = { 242 + static const struct of_device_id ls_g4_pcie_of_match[] = { 243 243 { .compatible = "fsl,lx2160a-pcie", }, 244 244 { }, 245 245 }; 246 246 247 - static struct platform_driver ls_pcie_g4_driver = { 247 + static struct platform_driver ls_g4_pcie_driver = { 248 248 .driver = { 249 249 .name = "layerscape-pcie-gen4", 250 - .of_match_table = ls_pcie_g4_of_match, 250 + .of_match_table = ls_g4_pcie_of_match, 251 251 .suppress_bind_attrs = true, 252 252 }, 253 253 }; 254 254 255 - builtin_platform_driver_probe(ls_pcie_g4_driver, ls_pcie_g4_probe); 255 + builtin_platform_driver_probe(ls_g4_pcie_driver, ls_g4_pcie_probe);