ide: remove chipset field from hw_regs_t

* Convert host drivers that still use hw_regs_t's chipset field to use
  the one in struct ide_port_info instead.

* Move special handling of ide_pci chipset type from ide_hw_configure()
  to ide_init_port().

* Remove chipset field from hw_regs_t.

While at it:
- remove stale comment in delkin_cb.c

There should be no functional changes caused by this patch.

Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

24 files changed, 20 insertions, 34 deletions

diff --git a/drivers/ide/at91_ide.c b/drivers/ide/at91_ide.c
index 403d0e4265db..8d39cc9bdf92 100644
--- a/drivers/ide/at91_ide.c
+++ b/drivers/ide/at91_ide.c
@@ -216,6 +216,7 @@ static const struct ide_port_info at91_ide_port_info __initdata = {
         .host_flags     = IDE_HFLAG_MMIO | IDE_HFLAG_NO_DMA | IDE_HFLAG_SINGLE |
                           IDE_HFLAG_NO_IO_32BIT | IDE_HFLAG_UNMASK_IRQS,
         .pio_mask       = ATA_PIO6,
+        .chipset        = ide_generic,
 };
 
 /*
@@ -304,7 +305,6 @@ static int __init at91_ide_probe(struct platform_device *pdev)
                 ide_std_init_ports(&hw, tf_base, ctl_base + 6);
 
         hw.irq = board->irq_pin;
-        hw.chipset = ide_generic;
         hw.dev = &pdev->dev;
 
         host = ide_host_alloc(&at91_ide_port_info, hws);
diff --git a/drivers/ide/au1xxx-ide.c b/drivers/ide/au1xxx-ide.c
index 46013644c965..9b31f830e2f5 100644
--- a/drivers/ide/au1xxx-ide.c
+++ b/drivers/ide/au1xxx-ide.c
@@ -499,6 +499,7 @@ static const struct ide_port_info au1xxx_port_info = {
 #ifdef CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA
         .mwdma_mask             = ATA_MWDMA2,
 #endif
+        .chipset                = ide_au1xxx,
 };
 
 static int au_ide_probe(struct platform_device *dev)
@@ -548,7 +549,6 @@ static int au_ide_probe(struct platform_device *dev)
         auide_setup_ports(&hw, ahwif);
         hw.irq = ahwif->irq;
         hw.dev = &dev->dev;
-        hw.chipset = ide_au1xxx;
 
         ret = ide_host_add(&au1xxx_port_info, hws, &host);
         if (ret)
diff --git a/drivers/ide/buddha.c b/drivers/ide/buddha.c
index d028f8864bc1..9aa2cd9be310 100644
--- a/drivers/ide/buddha.c
+++ b/drivers/ide/buddha.c
@@ -139,13 +139,12 @@ static void __init buddha_setup_ports(hw_regs_t *hw, unsigned long base,
 
         hw->irq = IRQ_AMIGA_PORTS;
         hw->ack_intr = ack_intr;
-
-        hw->chipset = ide_generic;
 }
 
 static const struct ide_port_info buddha_port_info = {
         .host_flags             = IDE_HFLAG_MMIO | IDE_HFLAG_NO_DMA,
         .irq_flags              = IRQF_SHARED,
+        .chipset                = ide_generic,
 };
 
     /*
diff --git a/drivers/ide/cmd640.c b/drivers/ide/cmd640.c
index 8890276fef7f..e862a2503ab0 100644
--- a/drivers/ide/cmd640.c
+++ b/drivers/ide/cmd640.c
@@ -762,11 +762,9 @@ static int __init cmd640x_init(void)
 
         ide_std_init_ports(&hw[0], 0x1f0, 0x3f6);
         hw[0].irq = 14;
-        hw[0].chipset = ide_cmd640;
 
         ide_std_init_ports(&hw[1], 0x170, 0x376);
         hw[1].irq = 15;
-        hw[1].chipset = ide_cmd640;
 
         printk(KERN_INFO "cmd640: buggy cmd640%c interface on %s, config=0x%02x"
                          "\n", 'a' + cmd640_chip_version - 1, bus_type, cfr);
diff --git a/drivers/ide/delkin_cb.c b/drivers/ide/delkin_cb.c
index f153b95619bb..a0de834a81c3 100644
--- a/drivers/ide/delkin_cb.c
+++ b/drivers/ide/delkin_cb.c
@@ -68,6 +68,7 @@ static const struct ide_port_info delkin_cb_port_info = {
                                   IDE_HFLAG_NO_DMA,
         .irq_flags              = IRQF_SHARED,
         .init_chipset           = delkin_cb_init_chipset,
+        .chipset                = ide_pci,
 };
 
 static int __devinit
@@ -97,7 +98,6 @@ delkin_cb_probe (struct pci_dev *dev, const struct pci_device_id *id)
         ide_std_init_ports(&hw, base + 0x10, base + 0x1e);
         hw.irq = dev->irq;
         hw.dev = &dev->dev;
-        hw.chipset = ide_pci;           /* this enables IRQ sharing */
 
         rc = ide_host_add(&delkin_cb_port_info, hws, &host);
         if (rc)
diff --git a/drivers/ide/falconide.c b/drivers/ide/falconide.c
index 0e2df6755ec9..770cfa67bdc8 100644
--- a/drivers/ide/falconide.c
+++ b/drivers/ide/falconide.c
@@ -111,6 +111,7 @@ static const struct ide_port_info falconide_port_info = {
         .host_flags             = IDE_HFLAG_MMIO | IDE_HFLAG_SERIALIZE |
                                   IDE_HFLAG_NO_DMA,
         .irq_flags              = IRQF_SHARED,
+        .chipset                = ide_generic,
 };
 
 static void __init falconide_setup_ports(hw_regs_t *hw)
@@ -128,8 +129,6 @@ static void __init falconide_setup_ports(hw_regs_t *hw)
 
         hw->irq = IRQ_MFP_IDE;
         hw->ack_intr = NULL;
-
-        hw->chipset = ide_generic;
 }
 
     /*
diff --git a/drivers/ide/gayle.c b/drivers/ide/gayle.c
index c7119516c5a7..71db2f9c3361 100644
--- a/drivers/ide/gayle.c
+++ b/drivers/ide/gayle.c
@@ -106,14 +106,13 @@ static void __init gayle_setup_ports(hw_regs_t *hw, unsigned long base,
 
         hw->irq = IRQ_AMIGA_PORTS;
         hw->ack_intr = ack_intr;
-
-        hw->chipset = ide_generic;
 }
 
 static const struct ide_port_info gayle_port_info = {
         .host_flags             = IDE_HFLAG_MMIO | IDE_HFLAG_SERIALIZE |
                                   IDE_HFLAG_NO_DMA,
         .irq_flags              = IRQF_SHARED,
+        .chipset                = ide_generic,
 };
 
     /*
diff --git a/drivers/ide/icside.c b/drivers/ide/icside.c
index 36da913cc553..6352a44ed179 100644
--- a/drivers/ide/icside.c
+++ b/drivers/ide/icside.c
@@ -398,11 +398,11 @@ static void icside_setup_ports(hw_regs_t *hw, void __iomem *base,
 
         hw->irq = ec->irq;
         hw->dev = &ec->dev;
-        hw->chipset = ide_acorn;
 }
 
 static const struct ide_port_info icside_v5_port_info = {
         .host_flags             = IDE_HFLAG_NO_DMA,
+        .chipset                = ide_acorn,
 };
 
 static int __devinit
@@ -457,6 +457,7 @@ static const struct ide_port_info icside_v6_port_info __initdata = {
         .host_flags             = IDE_HFLAG_SERIALIZE | IDE_HFLAG_MMIO,
         .mwdma_mask             = ATA_MWDMA2,
         .swdma_mask             = ATA_SWDMA2,
+        .chipset                = ide_acorn,
 };
 
 static int __devinit
diff --git a/drivers/ide/ide-4drives.c b/drivers/ide/ide-4drives.c
index 78aca75a2c48..617ca7a5ec8a 100644
--- a/drivers/ide/ide-4drives.c
+++ b/drivers/ide/ide-4drives.c
@@ -25,6 +25,7 @@ static const struct ide_port_info ide_4drives_port_info = {
         .port_ops               = &ide_4drives_port_ops,
         .host_flags             = IDE_HFLAG_SERIALIZE | IDE_HFLAG_NO_DMA |
                                   IDE_HFLAG_4DRIVES,
+        .chipset                = ide_4drives,
 };
 
 static int __init ide_4drives_init(void)
@@ -52,7 +53,6 @@ static int __init ide_4drives_init(void)
 
         ide_std_init_ports(&hw, base, ctl);
         hw.irq = 14;
-        hw.chipset = ide_4drives;
 
         return ide_host_add(&ide_4drives_port_info, hws, NULL);
 }
diff --git a/drivers/ide/ide-cs.c b/drivers/ide/ide-cs.c
index 9e47f3529d55..43d09dcae28c 100644
--- a/drivers/ide/ide-cs.c
+++ b/drivers/ide/ide-cs.c
@@ -155,6 +155,7 @@ static const struct ide_port_info idecs_port_info = {
         .port_ops               = &idecs_port_ops,
         .host_flags             = IDE_HFLAG_NO_DMA,
         .irq_flags              = IRQF_SHARED,
+        .chipset                = ide_pci,
 };
 
 static struct ide_host *idecs_register(unsigned long io, unsigned long ctl,
@@ -181,7 +182,6 @@ static struct ide_host *idecs_register(unsigned long io, unsigned long ctl,
     memset(&hw, 0, sizeof(hw));
     ide_std_init_ports(&hw, io, ctl);
     hw.irq = irq;
-    hw.chipset = ide_pci;
     hw.dev = &handle->dev;
 
     rc = ide_host_add(&idecs_port_info, hws, &host);
diff --git a/drivers/ide/ide-generic.c b/drivers/ide/ide-generic.c
index 7812ca0be13b..0427759d0187 100644
--- a/drivers/ide/ide-generic.c
+++ b/drivers/ide/ide-generic.c
@@ -29,6 +29,7 @@ MODULE_PARM_DESC(probe_mask, "probe mask for legacy ISA IDE ports");
 
 static const struct ide_port_info ide_generic_port_info = {
         .host_flags             = IDE_HFLAG_NO_DMA,
+        .chipset                = ide_generic,
 };
 
 #ifdef CONFIG_ARM
@@ -132,8 +133,6 @@ static int __init ide_generic_init(void)
 #else
                         hw.irq = legacy_irqs[i];
 #endif
-                        hw.chipset = ide_generic;
-
                         rc = ide_host_add(&ide_generic_port_info, hws, NULL);
                         if (rc) {
                                 release_region(io_addr + 0x206, 1);
diff --git a/drivers/ide/ide-h8300.c b/drivers/ide/ide-h8300.c
index c06ebdc4a130..40eff6c9759c 100644
--- a/drivers/ide/ide-h8300.c
+++ b/drivers/ide/ide-h8300.c
@@ -73,12 +73,12 @@ static inline void hw_setup(hw_regs_t *hw)
                 hw->io_ports_array[i] = CONFIG_H8300_IDE_BASE + H8300_IDE_GAP*i;
         hw->io_ports.ctl_addr = CONFIG_H8300_IDE_ALT;
         hw->irq = EXT_IRQ0 + CONFIG_H8300_IDE_IRQ;
-        hw->chipset = ide_generic;
 }
 
 static const struct ide_port_info h8300_port_info = {
         .tp_ops                 = &h8300_tp_ops,
         .host_flags             = IDE_HFLAG_NO_IO_32BIT | IDE_HFLAG_NO_DMA,
+        .chipset                = ide_generic,
 };
 
 static int __init h8300_ide_init(void)
diff --git a/drivers/ide/ide-legacy.c b/drivers/ide/ide-legacy.c
index 8c5dcbf22547..0c5b29c56cbe 100644
--- a/drivers/ide/ide-legacy.c
+++ b/drivers/ide/ide-legacy.c
@@ -33,7 +33,6 @@ static void ide_legacy_init_one(hw_regs_t **hws, hw_regs_t *hw,
 
         ide_std_init_ports(hw, base, ctl);
         hw->irq = irq;
-        hw->chipset = d->chipset;
         hw->config = config;
 
         hws[port_no] = hw;
diff --git a/drivers/ide/ide-pnp.c b/drivers/ide/ide-pnp.c
index 6e80b774e88a..47043fda2398 100644
--- a/drivers/ide/ide-pnp.c
+++ b/drivers/ide/ide-pnp.c
@@ -29,6 +29,7 @@ static struct pnp_device_id idepnp_devices[] = {
 
 static const struct ide_port_info ide_pnp_port_info = {
         .host_flags             = IDE_HFLAG_NO_DMA,
+        .chipset                = ide_generic,
 };
 
 static int idepnp_probe(struct pnp_dev *dev, const struct pnp_device_id *dev_id)
@@ -62,7 +63,6 @@ static int idepnp_probe(struct pnp_dev *dev, const struct pnp_device_id *dev_id)
         memset(&hw, 0, sizeof(hw));
         ide_std_init_ports(&hw, base, ctl);
         hw.irq = pnp_irq(dev, 0);
-        hw.chipset = ide_generic;
 
         rc = ide_host_add(&ide_pnp_port_info, hws, &host);
         if (rc)
diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c
index 727a67109ff0..f17ba1932ad6 100644
--- a/drivers/ide/ide-probe.c
+++ b/drivers/ide/ide-probe.c
@@ -1048,8 +1048,7 @@ static void ide_init_port(ide_hwif_t *hwif, unsigned int port,
 {
         hwif->channel = port;
 
-        if (d->chipset)
-                hwif->chipset = d->chipset;
+        hwif->chipset = d->chipset ? d->chipset : ide_pci;
 
         if (d->init_iops)
                 d->init_iops(hwif);
@@ -1178,7 +1177,6 @@ static void ide_init_port_hw(ide_hwif_t *hwif, hw_regs_t *hw)
 {
         memcpy(&hwif->io_ports, &hw->io_ports, sizeof(hwif->io_ports));
         hwif->irq = hw->irq;
-        hwif->chipset = hw->chipset;
         hwif->dev = hw->dev;
         hwif->gendev.parent = hw->parent ? hw->parent : hw->dev;
         hwif->ack_intr = hw->ack_intr;
diff --git a/drivers/ide/ide_platform.c b/drivers/ide/ide_platform.c
index 051b4ab0f359..813653362a26 100644
--- a/drivers/ide/ide_platform.c
+++ b/drivers/ide/ide_platform.c
@@ -40,12 +40,11 @@ static void __devinit plat_ide_setup_ports(hw_regs_t *hw,
         hw->io_ports.ctl_addr = (unsigned long)ctrl;
 
         hw->irq = irq;
-
-        hw->chipset = ide_generic;
 }
 
 static const struct ide_port_info platform_ide_port_info = {
         .host_flags             = IDE_HFLAG_NO_DMA,
+        .chipset                = ide_generic,
 };
 
 static int __devinit plat_ide_probe(struct platform_device *pdev)
diff --git a/drivers/ide/macide.c b/drivers/ide/macide.c
index 4b1718e83283..3af9e96da617 100644
--- a/drivers/ide/macide.c
+++ b/drivers/ide/macide.c
@@ -76,13 +76,12 @@ static void __init macide_setup_ports(hw_regs_t *hw, unsigned long base,
 
         hw->irq = irq;
         hw->ack_intr = ack_intr;
-
-        hw->chipset = ide_generic;
 }
 
 static const struct ide_port_info macide_port_info = {
         .host_flags             = IDE_HFLAG_MMIO | IDE_HFLAG_NO_DMA,
         .irq_flags              = IRQF_SHARED,
+        .chipset                = ide_generic,
 };
 
 static const char *mac_ide_name[] =
diff --git a/drivers/ide/palm_bk3710.c b/drivers/ide/palm_bk3710.c
index 09d813d313f4..a455c25f43cc 100644
--- a/drivers/ide/palm_bk3710.c
+++ b/drivers/ide/palm_bk3710.c
@@ -306,6 +306,7 @@ static struct ide_port_info __devinitdata palm_bk3710_port_info = {
         .host_flags             = IDE_HFLAG_MMIO,
         .pio_mask               = ATA_PIO4,
         .mwdma_mask             = ATA_MWDMA2,
+        .chipset                = ide_palm3710,
 };
 
 static int __init palm_bk3710_probe(struct platform_device *pdev)
@@ -363,7 +364,6 @@ static int __init palm_bk3710_probe(struct platform_device *pdev)
                         (base + IDE_PALM_ATA_PRI_CTL_OFFSET);
         hw.irq = irq->start;
         hw.dev = &pdev->dev;
-        hw.chipset = ide_palm3710;
 
         palm_bk3710_port_info.udma_mask = rate < 100000000 ? ATA_UDMA4 :
                                                              ATA_UDMA5;
diff --git a/drivers/ide/q40ide.c b/drivers/ide/q40ide.c
index c79346679244..7488d4ff3d7c 100644
--- a/drivers/ide/q40ide.c
+++ b/drivers/ide/q40ide.c
@@ -70,8 +70,6 @@ static void q40_ide_setup_ports(hw_regs_t *hw, unsigned long base,
 
         hw->irq = irq;
         hw->ack_intr = ack_intr;
-
-        hw->chipset = ide_generic;
 }
 
 static void q40ide_input_data(ide_drive_t *drive, struct ide_cmd *cmd,
@@ -119,6 +117,7 @@ static const struct ide_port_info q40ide_port_info = {
         .tp_ops                 = &q40ide_tp_ops,
         .host_flags             = IDE_HFLAG_MMIO | IDE_HFLAG_NO_DMA,
         .irq_flags              = IRQF_SHARED,
+        .chipset                = ide_generic,
 };
 
 /* 
diff --git a/drivers/ide/rapide.c b/drivers/ide/rapide.c
index d5003ca69801..bd4d7a8a666c 100644
--- a/drivers/ide/rapide.c
+++ b/drivers/ide/rapide.c
@@ -13,6 +13,7 @@
 
 static const struct ide_port_info rapide_port_info = {
         .host_flags             = IDE_HFLAG_MMIO | IDE_HFLAG_NO_DMA,
+        .chipset                = ide_generic,
 };
 
 static void rapide_setup_ports(hw_regs_t *hw, void __iomem *base,
@@ -49,7 +50,6 @@ rapide_probe(struct expansion_card *ec, const struct ecard_id *id)
 
         memset(&hw, 0, sizeof(hw));
         rapide_setup_ports(&hw, base, base + 0x818, 1 << 6, ec->irq);
-        hw.chipset = ide_generic;
         hw.dev = &ec->dev;
 
         ret = ide_host_add(&rapide_port_info, hws, &host);
diff --git a/drivers/ide/scc_pata.c b/drivers/ide/scc_pata.c
index 5be41f25204f..9e3aef317332 100644
--- a/drivers/ide/scc_pata.c
+++ b/drivers/ide/scc_pata.c
@@ -567,7 +567,6 @@ static int scc_ide_setup_pci_device(struct pci_dev *dev,
                 hw.io_ports_array[i] = ports->dma + 0x20 + i * 4;
         hw.irq = dev->irq;
         hw.dev = &dev->dev;
-        hw.chipset = ide_pci;
 
         rc = ide_host_add(d, hws, &host);
         if (rc)
@@ -823,6 +822,7 @@ static const struct ide_port_info scc_chipset __devinitdata = {
         .host_flags     = IDE_HFLAG_SINGLE,
         .irq_flags      = IRQF_SHARED,
         .pio_mask       = ATA_PIO4,
+        .chipset        = ide_pci,
 };
 
 /**
diff --git a/drivers/ide/setup-pci.c b/drivers/ide/setup-pci.c
index 7a3a12d6e638..82519ddc9108 100644
--- a/drivers/ide/setup-pci.c
+++ b/drivers/ide/setup-pci.c
@@ -344,7 +344,6 @@ static int ide_hw_configure(struct pci_dev *dev, const struct ide_port_info *d,
 
         memset(hw, 0, sizeof(*hw));
         hw->dev = &dev->dev;
-        hw->chipset = d->chipset ? d->chipset : ide_pci;
         ide_std_init_ports(hw, base, ctl | 2);
 
         return 0;
diff --git a/drivers/ide/sgiioc4.c b/drivers/ide/sgiioc4.c
index e5d2a48a84de..676d41c7add5 100644
--- a/drivers/ide/sgiioc4.c
+++ b/drivers/ide/sgiioc4.c
@@ -575,7 +575,6 @@ sgiioc4_ide_setup_pci_device(struct pci_dev *dev)
         memset(&hw, 0, sizeof(hw));
         sgiioc4_init_hwif_ports(&hw, cmd_base, ctl, irqport);
         hw.irq = dev->irq;
-        hw.chipset = ide_pci;
         hw.dev = &dev->dev;
 
         /* Initializing chipset IRQ Registers */
diff --git a/include/linux/ide.h b/include/linux/ide.h
index fc61328a4cdb..9652edbd26af 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -186,7 +186,6 @@ typedef struct hw_regs_s {
 
         int             irq;                    /* our irq number */
         ide_ack_intr_t  *ack_intr;              /* acknowledge interrupt */
-        hwif_chipset_t  chipset;
         struct device   *dev, *parent;
         unsigned long   config;
 } hw_regs_t;