From 6c9b9c554b2a369d2b46558975ef2eaa3a84c1c3 Mon Sep 17 00:00:00 2001 From: Ondrej Zary Date: Tue, 17 Nov 2015 19:24:20 +0100 Subject: [PATCH] atp870u: Simplify _probe() Move shpnt common code to the top, remove base_io, use pci_resource_len. Signed-off-by: Ondrej Zary Reviewed-by: Hannes Reinicke Acked-by: Christoph Hellwig Signed-off-by: Martin K. Petersen --- drivers/scsi/atp870u.c | 65 ++++++++++++++++++------------------------ 1 file changed, 28 insertions(+), 37 deletions(-) diff --git a/drivers/scsi/atp870u.c b/drivers/scsi/atp870u.c index f92eb008cb8c..8af51a97185a 100644 --- a/drivers/scsi/atp870u.c +++ b/drivers/scsi/atp870u.c @@ -1245,7 +1245,7 @@ static int atp870u_probe(struct pci_dev *pdev, const struct pci_device_id *ent) { unsigned char k, m, c; unsigned long flags; - unsigned int base_io, error,n; + unsigned int error,n; unsigned char host_id; struct Scsi_Host *shpnt = NULL; struct atp_unit *atpdev; @@ -1278,21 +1278,24 @@ static int atp870u_probe(struct pci_dev *pdev, const struct pci_device_id *ent) atpdev->pdev = pdev; pci_set_drvdata(pdev, atpdev); - base_io = pci_resource_start(pdev, 0); - base_io &= 0xfffffff8; - atpdev->baseport = base_io; + shpnt->io_port = pci_resource_start(pdev, 0); + shpnt->io_port &= 0xfffffff8; + shpnt->n_io_port = pci_resource_len(pdev, 0); + atpdev->baseport = shpnt->io_port; + shpnt->unique_id = shpnt->io_port; + shpnt->irq = pdev->irq; if ((ent->device == ATP880_DEVID1)||(ent->device == ATP880_DEVID2)) { pci_write_config_byte(pdev, PCI_LATENCY_TIMER, 0x80);//JCC082803 - atpdev->ioport[0] = base_io + 0x40; - atpdev->pciport[0] = base_io + 0x28; + atpdev->ioport[0] = shpnt->io_port + 0x40; + atpdev->pciport[0] = shpnt->io_port + 0x28; host_id = atp_readb_base(atpdev, 0x39); host_id >>= 0x04; printk(KERN_INFO " ACARD AEC-67160 PCI Ultra3 LVD Host Adapter:" - " IO:%x, IRQ:%d.\n", base_io, pdev->irq); + " IO:%lx, IRQ:%d.\n", shpnt->io_port, shpnt->irq); atpdev->dev_id = ent->device; atpdev->host_id[0] = host_id; @@ -1358,9 +1361,9 @@ flash_ok_880: goto unregister; } - err = request_irq(pdev->irq, atp870u_intr_handle, IRQF_SHARED, "atp880i", shpnt); + err = request_irq(shpnt->irq, atp870u_intr_handle, IRQF_SHARED, "atp880i", shpnt); if (err) { - printk(KERN_ERR "Unable to allocate IRQ%d for Acard controller.\n", pdev->irq); + printk(KERN_ERR "Unable to allocate IRQ%d for Acard controller.\n", shpnt->irq); goto free_tables; } @@ -1381,20 +1384,16 @@ flash_ok_880: atp_writeb_base(atpdev, 0x38, 0xb0); shpnt->max_id = 16; shpnt->this_id = host_id; - shpnt->unique_id = base_io; - shpnt->io_port = base_io; - shpnt->n_io_port = 0x60; /* Number of bytes of I/O space used */ - shpnt->irq = pdev->irq; } else if (ent->device == ATP885_DEVID) { - printk(KERN_INFO " ACARD AEC-67162 PCI Ultra3 LVD Host Adapter: IO:%x, IRQ:%d.\n" - , base_io, pdev->irq); + printk(KERN_INFO " ACARD AEC-67162 PCI Ultra3 LVD Host Adapter: IO:%lx, IRQ:%d.\n" + , shpnt->io_port, shpnt->irq); atpdev->pdev = pdev; atpdev->dev_id = ent->device; - atpdev->ioport[0] = base_io + 0x80; - atpdev->ioport[1] = base_io + 0xc0; - atpdev->pciport[0] = base_io + 0x40; - atpdev->pciport[1] = base_io + 0x50; + atpdev->ioport[0] = shpnt->io_port + 0x80; + atpdev->ioport[1] = shpnt->io_port + 0xc0; + atpdev->pciport[0] = shpnt->io_port + 0x40; + atpdev->pciport[1] = shpnt->io_port + 0x50; if (atp870u_init_tables(shpnt) < 0) { err = -ENOMEM; @@ -1404,7 +1403,7 @@ flash_ok_880: #ifdef ED_DBGP printk("request_irq() shpnt %p hostdata %p\n", shpnt, atpdev); #endif - err = request_irq(pdev->irq, atp870u_intr_handle, IRQF_SHARED, "atp870u", shpnt); + err = request_irq(shpnt->irq, atp870u_intr_handle, IRQF_SHARED, "atp870u", shpnt); if (err) { printk(KERN_ERR "Unable to allocate IRQ for Acard controller.\n"); goto free_tables; @@ -1516,11 +1515,6 @@ flash_ok_885: shpnt->max_lun = (atpdev->global_map[0] & 0x07) + 1; shpnt->max_channel = 1; shpnt->this_id = atpdev->host_id[0]; - shpnt->unique_id = base_io; - shpnt->io_port = base_io; - shpnt->n_io_port = 0xff; /* Number of bytes of I/O space used */ - shpnt->irq = pdev->irq; - } else { bool wide_chip = (ent->device == PCI_DEVICE_ID_ARTOP_AEC7610 && @@ -1530,10 +1524,10 @@ flash_ok_885: error = pci_read_config_byte(pdev, 0x49, &host_id); printk(KERN_INFO " ACARD AEC-671X PCI Ultra/W SCSI-2/3 Host Adapter: " - "IO:%x, IRQ:%d.\n", base_io, pdev->irq); + "IO:%lx, IRQ:%d.\n", shpnt->io_port, shpnt->irq); - atpdev->ioport[0] = base_io; - atpdev->pciport[0] = base_io + 0x20; + atpdev->ioport[0] = shpnt->io_port; + atpdev->pciport[0] = shpnt->io_port + 0x20; atpdev->dev_id = ent->device; host_id &= 0x07; atpdev->host_id[0] = host_id; @@ -1553,9 +1547,9 @@ flash_ok_885: goto unregister; } - err = request_irq(pdev->irq, atp870u_intr_handle, IRQF_SHARED, "atp870i", shpnt); + err = request_irq(shpnt->irq, atp870u_intr_handle, IRQF_SHARED, "atp870i", shpnt); if (err) { - printk(KERN_ERR "Unable to allocate IRQ%d for Acard controller.\n", pdev->irq); + printk(KERN_ERR "Unable to allocate IRQ%d for Acard controller.\n", shpnt->irq); goto free_tables; } @@ -1579,13 +1573,10 @@ flash_ok_885: atp_writeb_base(atpdev, 0x3b, atp_readb_base(atpdev, 0x3b) | 0x20); shpnt->max_id = wide_chip ? 16 : 8; shpnt->this_id = host_id; - shpnt->unique_id = base_io; - shpnt->io_port = base_io; - shpnt->n_io_port = 0x40; /* Number of bytes of I/O space used */ - shpnt->irq = pdev->irq; + } spin_unlock_irqrestore(shpnt->host_lock, flags); - if (!request_region(base_io, shpnt->n_io_port, "atp870u")) { + if (!request_region(shpnt->io_port, shpnt->n_io_port, "atp870u")) { err = -EBUSY; goto request_io_fail; } @@ -1600,10 +1591,10 @@ flash_ok_885: scsi_add_fail: printk("atp870u_prob:scsi_add_fail\n"); - release_region(base_io, shpnt->n_io_port); + release_region(shpnt->io_port, shpnt->n_io_port); request_io_fail: printk("atp870u_prob:request_io_fail\n"); - free_irq(pdev->irq, shpnt); + free_irq(shpnt->irq, shpnt); free_tables: printk("atp870u_prob:free_table\n"); atp870u_free_tables(shpnt); -- 2.20.1