From: Jiri Slaby Date: Fri, 8 Dec 2006 10:39:09 +0000 (-0800) Subject: [PATCH] Char: stallion, convert to pci probing X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=b1b84fe0d76b89534da706372ef719bbaa9fef0a;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git [PATCH] Char: stallion, convert to pci probing Convert stallion driver to pci probing instead of pci_dev_get iteration. Signed-off-by: Jiri Slaby Cc: Alan Cox Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- diff --git a/drivers/char/stallion.c b/drivers/char/stallion.c index 71bfdccfb42e..6a9feb69632d 100644 --- a/drivers/char/stallion.c +++ b/drivers/char/stallion.c @@ -381,8 +381,6 @@ static spinlock_t stallion_lock; /* Guard the tty driver */ /*****************************************************************************/ -#ifdef CONFIG_PCI - /* * Define the Stallion PCI vendor and device IDs. */ @@ -402,22 +400,19 @@ static spinlock_t stallion_lock; /* Guard the tty driver */ /* * Define structure to hold all Stallion PCI boards. */ -typedef struct stlpcibrd { - unsigned short vendid; - unsigned short devid; - int brdtype; -} stlpcibrd_t; - -static stlpcibrd_t stl_pcibrds[] = { - { PCI_VENDOR_ID_STALLION, PCI_DEVICE_ID_ECHPCI864, BRD_ECH64PCI }, - { PCI_VENDOR_ID_STALLION, PCI_DEVICE_ID_EIOPCI, BRD_EASYIOPCI }, - { PCI_VENDOR_ID_STALLION, PCI_DEVICE_ID_ECHPCI832, BRD_ECHPCI }, - { PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_87410, BRD_ECHPCI }, -}; -static int stl_nrpcibrds = ARRAY_SIZE(stl_pcibrds); - -#endif +static struct pci_device_id stl_pcibrds[] = { + { PCI_DEVICE(PCI_VENDOR_ID_STALLION, PCI_DEVICE_ID_ECHPCI864), + .driver_data = BRD_ECH64PCI }, + { PCI_DEVICE(PCI_VENDOR_ID_STALLION, PCI_DEVICE_ID_EIOPCI), + .driver_data = BRD_EASYIOPCI }, + { PCI_DEVICE(PCI_VENDOR_ID_STALLION, PCI_DEVICE_ID_ECHPCI832), + .driver_data = BRD_ECHPCI }, + { PCI_DEVICE(PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_87410), + .driver_data = BRD_ECHPCI }, + { } +}; +MODULE_DEVICE_TABLE(pci, stl_pcibrds); /*****************************************************************************/ @@ -2390,24 +2385,52 @@ static int __init stl_getbrdnr(void) return(-1); } -/*****************************************************************************/ +static void stl_cleanup_panels(struct stlbrd *brdp) +{ + struct stlpanel *panelp; + struct stlport *portp; + unsigned int j, k; -#ifdef CONFIG_PCI + for (j = 0; j < STL_MAXPANELS; j++) { + panelp = brdp->panels[j]; + if (panelp == NULL) + continue; + for (k = 0; k < STL_PORTSPERPANEL; k++) { + portp = panelp->ports[k]; + if (portp == NULL) + continue; + if (portp->tty != NULL) + stl_hangup(portp->tty); + kfree(portp->tx.buf); + kfree(portp); + } + kfree(panelp); + } +} +/*****************************************************************************/ /* * We have a Stallion board. Allocate a board structure and * initialize it. Read its IO and IRQ resources from PCI * configuration space. */ -static int __init stl_initpcibrd(int brdtype, struct pci_dev *devp) +static int __devinit stl_pciprobe(struct pci_dev *pdev, + const struct pci_device_id *ent) { - struct stlbrd *brdp; + struct stlbrd *brdp; + unsigned int brdtype = ent->driver_data; pr_debug("stl_initpcibrd(brdtype=%d,busnr=%x,devnr=%x)\n", brdtype, - devp->bus->number, devp->devfn); + pdev->bus->number, pdev->devfn); + + if ((pdev->class >> 8) == PCI_CLASS_STORAGE_IDE) + return -ENODEV; + + dev_info(&pdev->dev, "please, report this to LKML: %x/%x/%x\n", + pdev->vendor, pdev->device, pdev->class); - if (pci_enable_device(devp)) + if (pci_enable_device(pdev)) return(-EIO); if ((brdp = stl_allocbrd()) == NULL) return(-ENOMEM); @@ -2423,8 +2446,8 @@ static int __init stl_initpcibrd(int brdtype, struct pci_dev *devp) * so set up io addresses based on board type. */ pr_debug("%s(%d): BAR[]=%Lx,%Lx,%Lx,%Lx IRQ=%x\n", __FILE__, __LINE__, - pci_resource_start(devp, 0), pci_resource_start(devp, 1), - pci_resource_start(devp, 2), pci_resource_start(devp, 3), devp->irq); + pci_resource_start(pdev, 0), pci_resource_start(pdev, 1), + pci_resource_start(pdev, 2), pci_resource_start(pdev, 3), pdev->irq); /* * We have all resources from the board, so let's setup the actual @@ -2432,63 +2455,52 @@ static int __init stl_initpcibrd(int brdtype, struct pci_dev *devp) */ switch (brdtype) { case BRD_ECHPCI: - brdp->ioaddr2 = pci_resource_start(devp, 0); - brdp->ioaddr1 = pci_resource_start(devp, 1); + brdp->ioaddr2 = pci_resource_start(pdev, 0); + brdp->ioaddr1 = pci_resource_start(pdev, 1); break; case BRD_ECH64PCI: - brdp->ioaddr2 = pci_resource_start(devp, 2); - brdp->ioaddr1 = pci_resource_start(devp, 1); + brdp->ioaddr2 = pci_resource_start(pdev, 2); + brdp->ioaddr1 = pci_resource_start(pdev, 1); break; case BRD_EASYIOPCI: - brdp->ioaddr1 = pci_resource_start(devp, 2); - brdp->ioaddr2 = pci_resource_start(devp, 1); + brdp->ioaddr1 = pci_resource_start(pdev, 2); + brdp->ioaddr2 = pci_resource_start(pdev, 1); break; default: printk("STALLION: unknown PCI board type=%d\n", brdtype); break; } - brdp->irq = devp->irq; + brdp->irq = pdev->irq; stl_brdinit(brdp); + pci_set_drvdata(pdev, brdp); + return(0); } -/*****************************************************************************/ - -/* - * Find all Stallion PCI boards that might be installed. Initialize each - * one as it is found. - */ - - -static int __init stl_findpcibrds(void) +static void __devexit stl_pciremove(struct pci_dev *pdev) { - struct pci_dev *dev = NULL; - int i, rc; - - pr_debug("stl_findpcibrds()\n"); + struct stlbrd *brdp = pci_get_drvdata(pdev); - for (i = 0; (i < stl_nrpcibrds); i++) - while ((dev = pci_get_device(stl_pcibrds[i].vendid, - stl_pcibrds[i].devid, dev))) { + free_irq(brdp->irq, brdp); -/* - * Found a device on the PCI bus that has our vendor and - * device ID. Need to check now that it is really us. - */ - if ((dev->class >> 8) == PCI_CLASS_STORAGE_IDE) - continue; + stl_cleanup_panels(brdp); - rc = stl_initpcibrd(stl_pcibrds[i].brdtype, dev); - if (rc) - return(rc); - } + release_region(brdp->ioaddr1, brdp->iosize1); + if (brdp->iosize2 > 0) + release_region(brdp->ioaddr2, brdp->iosize2); - return(0); + stl_brds[brdp->brdnr] = NULL; + kfree(brdp); } -#endif +static struct pci_driver stl_pcidriver = { + .name = "stallion", + .id_table = stl_pcibrds, + .probe = stl_pciprobe, + .remove = __devexit_p(stl_pciremove) +}; /*****************************************************************************/ @@ -2535,9 +2547,6 @@ static int __init stl_initbrds(void) * line options or auto-detected on the PCI bus. */ stl_argbrds(); -#ifdef CONFIG_PCI - stl_findpcibrds(); -#endif return(0); } @@ -4776,7 +4785,7 @@ static void stl_sc26198otherisr(struct stlport *portp, unsigned int iack) */ static int __init stallion_module_init(void) { - unsigned int i; + unsigned int i, retval; printk(KERN_INFO "%s: version %s\n", stl_drvtitle, stl_drvversion); @@ -4785,6 +4794,10 @@ static int __init stallion_module_init(void) stl_initbrds(); + retval = pci_register_driver(&stl_pcidriver); + if (retval) + goto err; + stl_serial = alloc_tty_driver(STL_MAXBRDS * STL_MAXPORTS); if (!stl_serial) return -1; @@ -4820,14 +4833,14 @@ static int __init stallion_module_init(void) } return 0; +err: + return retval; } static void __exit stallion_module_exit(void) { struct stlbrd *brdp; - struct stlpanel *panelp; - struct stlport *portp; - int i, j, k; + int i; pr_debug("cleanup_module()\n"); @@ -4854,27 +4867,15 @@ static void __exit stallion_module_exit(void) "errno=%d\n", -i); class_destroy(stallion_class); + pci_unregister_driver(&stl_pcidriver); + for (i = 0; (i < stl_nrbrds); i++) { if ((brdp = stl_brds[i]) == NULL) continue; free_irq(brdp->irq, brdp); - for (j = 0; (j < STL_MAXPANELS); j++) { - panelp = brdp->panels[j]; - if (panelp == NULL) - continue; - for (k = 0; (k < STL_PORTSPERPANEL); k++) { - portp = panelp->ports[k]; - if (portp == NULL) - continue; - if (portp->tty != NULL) - stl_hangup(portp->tty); - kfree(portp->tx.buf); - kfree(portp); - } - kfree(panelp); - } + stl_cleanup_panels(brdp); release_region(brdp->ioaddr1, brdp->iosize1); if (brdp->iosize2 > 0)