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[PATCH] sata_promise: cleanups, take 2 

This patch performs two simple cleanups of sata_promise.

* Remove board_20771 and map device id 0x3577 to board_2057x.
  After the recent corrections for SATAII chips, board_20771 and
  board_2057x were equivalent in the driver.

* Remove hp->hotplug_offset and use hp->flags & PDC_FLAG_GEN_II
  to compute hotplug_offset in pdc_host_init(). hp->hotplug_offset
  was used to distinguish 1st and 2nd generation chips in one
  particular case, but now we have that information in a more
  general form in hp->flags, so hp->hotplug_offset is redundant.

Changes since previous submission: rebased on libata-dev #upstream,
cleaned up hotplug_offset computation based on Tejun's comments,
expanded hotplug_offset removal rationale.

This patch does not depend on the pending new EH conversion patch.

Signed-off-by: Mikael Pettersson <mikpe@it.uu.se>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Mikael Pettersson 2006-12-06 09:55:43 +01:00 коммит произвёл Jeff Garzik
Родитель 620034c84d
Коммит d324d4627d
1 изменённых файлов: 9 добавлений и 31 удалений
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40
drivers/ata/sata_promise.c
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@ -66,9 +66,8 @@ enum {
board_2037x = 0, /* FastTrak S150 TX2plus */
board_20319 = 1, /* FastTrak S150 TX4 */
board_20619 = 2, /* FastTrak TX4000 */
board_20771 = 3, /* FastTrak TX2300 */
board_2057x = 4, /* SATAII150 Tx2plus */
board_40518 = 5, /* SATAII150 Tx4 */
board_2057x = 3, /* SATAII150 Tx2plus */
board_40518 = 4, /* SATAII150 Tx4 */
PDC_HAS_PATA = (1 << 1), /* PDC20375/20575 has PATA */
@ -90,7 +89,6 @@ struct pdc_port_priv {
struct pdc_host_priv {
unsigned long flags;
int hotplug_offset;
};
static u32 pdc_sata_scr_read (struct ata_port *ap, unsigned int sc_reg);
@ -205,16 +203,6 @@ static const struct ata_port_info pdc_port_info[] = {
.port_ops = &pdc_pata_ops,
},
/* board_20771 */
{
.sht = &pdc_ata_sht,
.flags = PDC_COMMON_FLAGS | ATA_FLAG_SATA,
.pio_mask = 0x1f, /* pio0-4 */
.mwdma_mask = 0x07, /* mwdma0-2 */
.udma_mask = 0x7f, /* udma0-6 ; FIXME */
.port_ops = &pdc_sata_ops,
},
/* board_2057x */
{
.sht = &pdc_ata_sht,
@ -244,6 +232,7 @@ static const struct pci_device_id pdc_ata_pci_tbl[] = {
{ PCI_VDEVICE(PROMISE, 0x3570), board_2057x },
{ PCI_VDEVICE(PROMISE, 0x3571), board_2057x },
{ PCI_VDEVICE(PROMISE, 0x3574), board_2057x },
{ PCI_VDEVICE(PROMISE, 0x3577), board_2057x },
{ PCI_VDEVICE(PROMISE, 0x3d73), board_2057x },
{ PCI_VDEVICE(PROMISE, 0x3d75), board_2057x },
@ -256,15 +245,6 @@ static const struct pci_device_id pdc_ata_pci_tbl[] = {
{ PCI_VDEVICE(PROMISE, 0x6629), board_20619 },
/* TODO: remove all associated board_20771 code, as it completely
* duplicates board_2037x code, unless reason for separation can be
* divined.
*/
#if 0
{ PCI_VDEVICE(PROMISE, 0x3570), board_20771 },
#endif
{ PCI_VDEVICE(PROMISE, 0x3577), board_20771 },
{ } /* terminate list */
};
@ -645,9 +625,14 @@ static void pdc_host_init(unsigned int chip_id, struct ata_probe_ent *pe)
{
void __iomem *mmio = pe->mmio_base;
struct pdc_host_priv *hp = pe->private_data;
int hotplug_offset = hp->hotplug_offset;
int hotplug_offset;
u32 tmp;
if (hp->flags & PDC_FLAG_GEN_II)
hotplug_offset = PDC2_SATA_PLUG_CSR;
else
hotplug_offset = PDC_SATA_PLUG_CSR;
/*
* Except for the hotplug stuff, this is voodoo from the
* Promise driver. Label this entire section
@ -742,8 +727,6 @@ static int pdc_ata_init_one (struct pci_dev *pdev, const struct pci_device_id *e
goto err_out_free_ent;
}
/* Set default hotplug offset */
hp->hotplug_offset = PDC_SATA_PLUG_CSR;
probe_ent->private_data = hp;
probe_ent->sht = pdc_port_info[board_idx].sht;
@ -767,8 +750,6 @@ static int pdc_ata_init_one (struct pci_dev *pdev, const struct pci_device_id *e
switch (board_idx) {
case board_40518:
hp->flags |= PDC_FLAG_GEN_II;
/* Override hotplug offset for SATAII150 */
hp->hotplug_offset = PDC2_SATA_PLUG_CSR;
/* Fall through */
case board_20319:
probe_ent->n_ports = 4;
@ -780,10 +761,7 @@ static int pdc_ata_init_one (struct pci_dev *pdev, const struct pci_device_id *e
probe_ent->port[3].scr_addr = base + 0x700;
break;
case board_2057x:
case board_20771:
hp->flags |= PDC_FLAG_GEN_II;
/* Override hotplug offset for SATAII150 */
hp->hotplug_offset = PDC2_SATA_PLUG_CSR;
/* Fall through */
case board_2037x:
probe_ent->n_ports = 2;