1 files changed, 115 insertions, 131 deletions

diff --git a/drivers/ata/pata_cs5530.c b/drivers/ata/pata_cs5530.c
index f3d8a3bc1e7..48ae4b43447 100644
--- a/drivers/ata/pata_cs5530.c
+++ b/drivers/ata/pata_cs5530.c
@@ -1,7 +1,6 @@
 /*
  * pata-cs5530.c 	- CS5530 PATA for new ATA layer
  *			  (C) 2005 Red Hat Inc
- *			  Alan Cox <alan@redhat.com>
  *
  * based upon cs5530.c by Mark Lord.
  *
@@ -27,7 +26,6 @@
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/pci.h>
-#include <linux/init.h>
 #include <linux/blkdev.h>
 #include <linux/delay.h>
 #include <scsi/scsi_host.h>
@@ -35,7 +33,14 @@
 #include <linux/dmi.h>
 
 #define DRV_NAME	"pata_cs5530"
-#define DRV_VERSION	"0.6"
+#define DRV_VERSION	"0.7.4"
+
+static void __iomem *cs5530_port_base(struct ata_port *ap)
+{
+	unsigned long bmdma = (unsigned long)ap->ioaddr.bmdma_addr;
+
+	return (void __iomem *)((bmdma & ~0x0F) + 0x20 + 0x10 * ap->port_no);
+}
 
 /**
  *	cs5530_set_piomode		-	PIO setup
@@ -52,19 +57,19 @@ static void cs5530_set_piomode(struct ata_port *ap, struct ata_device *adev)
 		{0x00009172, 0x00012171, 0x00020080, 0x00032010, 0x00040010},
 		{0xd1329172, 0x71212171, 0x30200080, 0x20102010, 0x00100010}
 	};
-	unsigned long base = ( ap->ioaddr.bmdma_addr & ~0x0F) + 0x20 + 0x10 * ap->port_no;
+	void __iomem *base = cs5530_port_base(ap);
 	u32 tuning;
 	int format;
 
 	/* Find out which table to use */
-	tuning = inl(base + 0x04);
+	tuning = ioread32(base + 0x04);
 	format = (tuning & 0x80000000UL) ? 1 : 0;
 
 	/* Now load the right timing register */
 	if (adev->devno)
 		base += 0x08;
 
-	outl(cs5530_pio_timings[format][adev->pio_mode - XFER_PIO_0], base);
+	iowrite32(cs5530_pio_timings[format][adev->pio_mode - XFER_PIO_0], base);
 }
 
 /**
@@ -79,12 +84,12 @@ static void cs5530_set_piomode(struct ata_port *ap, struct ata_device *adev)
 
 static void cs5530_set_dmamode(struct ata_port *ap, struct ata_device *adev)
 {
-	unsigned long base = ( ap->ioaddr.bmdma_addr & ~0x0F) + 0x20 + 0x10 * ap->port_no;
+	void __iomem *base = cs5530_port_base(ap);
 	u32 tuning, timing = 0;
 	u8 reg;
 
 	/* Find out which table to use */
-	tuning = inl(base + 0x04);
+	tuning = ioread32(base + 0x04);
 
 	switch(adev->dma_mode) {
 		case XFER_UDMA_0:
@@ -105,20 +110,20 @@ static void cs5530_set_dmamode(struct ata_port *ap, struct ata_device *adev)
 	/* Merge in the PIO format bit */
 	timing |= (tuning & 0x80000000UL);
 	if (adev->devno == 0) /* Master */
-		outl(timing, base + 0x04);
+		iowrite32(timing, base + 0x04);
 	else {
 		if (timing & 0x00100000)
 			tuning |= 0x00100000;	/* UDMA for both */
 		else
 			tuning &= ~0x00100000;	/* MWDMA for both */
-		outl(tuning, base + 0x04);
-		outl(timing, base + 0x0C);
+		iowrite32(tuning, base + 0x04);
+		iowrite32(timing, base + 0x0C);
 	}
 
 	/* Set the DMA capable bit in the BMDMA area */
-	reg = inb(ap->ioaddr.bmdma_addr + ATA_DMA_STATUS);
+	reg = ioread8(ap->ioaddr.bmdma_addr + ATA_DMA_STATUS);
 	reg |= (1 << (5 + adev->devno));
-	outb(reg, ap->ioaddr.bmdma_addr + ATA_DMA_STATUS);
+	iowrite8(reg, ap->ioaddr.bmdma_addr + ATA_DMA_STATUS);
 
 	/* Remember the last DMA setup we did */
 
@@ -126,99 +131,50 @@ static void cs5530_set_dmamode(struct ata_port *ap, struct ata_device *adev)
 }
 
 /**
- *	cs5530_qc_issue_prot	-	command issue
+ *	cs5530_qc_issue		-	command issue
  *	@qc: command pending
  *
  *	Called when the libata layer is about to issue a command. We wrap
  *	this interface so that we can load the correct ATA timings if
- *	neccessary.  Specifically we have a problem that there is only
+ *	necessary.  Specifically we have a problem that there is only
  *	one MWDMA/UDMA bit.
  */
 
-static unsigned int cs5530_qc_issue_prot(struct ata_queued_cmd *qc)
+static unsigned int cs5530_qc_issue(struct ata_queued_cmd *qc)
 {
 	struct ata_port *ap = qc->ap;
 	struct ata_device *adev = qc->dev;
 	struct ata_device *prev = ap->private_data;
 
 	/* See if the DMA settings could be wrong */
-	if (adev->dma_mode != 0 && adev != prev && prev != NULL) {
+	if (ata_dma_enabled(adev) && adev != prev && prev != NULL) {
 		/* Maybe, but do the channels match MWDMA/UDMA ? */
-		if ((adev->dma_mode >= XFER_UDMA_0 && prev->dma_mode < XFER_UDMA_0) ||
-		    (adev->dma_mode < XFER_UDMA_0 && prev->dma_mode >= XFER_UDMA_0))
+		if ((ata_using_udma(adev) && !ata_using_udma(prev)) ||
+		    (ata_using_udma(prev) && !ata_using_udma(adev)))
 		    	/* Switch the mode bits */
 		    	cs5530_set_dmamode(ap, adev);
 	}
 
-	return ata_qc_issue_prot(qc);
-}
-
-static int cs5530_pre_reset(struct ata_port *ap)
-{
-	ap->cbl = ATA_CBL_PATA40;
-	return ata_std_prereset(ap);
-}
-
-static void cs5530_error_handler(struct ata_port *ap)
-{
-	return ata_bmdma_drive_eh(ap, cs5530_pre_reset, ata_std_softreset, NULL, ata_std_postreset);
+	return ata_bmdma_qc_issue(qc);
 }
 
-
 static struct scsi_host_template cs5530_sht = {
-	.module			= THIS_MODULE,
-	.name			= DRV_NAME,
-	.ioctl			= ata_scsi_ioctl,
-	.queuecommand		= ata_scsi_queuecmd,
-	.can_queue		= ATA_DEF_QUEUE,
-	.this_id		= ATA_SHT_THIS_ID,
-	.sg_tablesize		= LIBATA_MAX_PRD,
-	.max_sectors		= ATA_MAX_SECTORS,
-	.cmd_per_lun		= ATA_SHT_CMD_PER_LUN,
-	.emulated		= ATA_SHT_EMULATED,
-	.use_clustering		= ATA_SHT_USE_CLUSTERING,
-	.proc_name		= DRV_NAME,
-	.dma_boundary		= ATA_DMA_BOUNDARY,
-	.slave_configure	= ata_scsi_slave_config,
-	.bios_param		= ata_std_bios_param,
+	ATA_BMDMA_SHT(DRV_NAME),
+	.sg_tablesize	= LIBATA_DUMB_MAX_PRD,
 };
 
 static struct ata_port_operations cs5530_port_ops = {
-	.port_disable	= ata_port_disable,
+	.inherits	= &ata_bmdma_port_ops,
+
+	.qc_prep 	= ata_bmdma_dumb_qc_prep,
+	.qc_issue	= cs5530_qc_issue,
+
+	.cable_detect	= ata_cable_40wire,
 	.set_piomode	= cs5530_set_piomode,
 	.set_dmamode	= cs5530_set_dmamode,
-	.mode_filter	= ata_pci_default_filter,
-
-	.tf_load	= ata_tf_load,
-	.tf_read	= ata_tf_read,
-	.check_status 	= ata_check_status,
-	.exec_command	= ata_exec_command,
-	.dev_select 	= ata_std_dev_select,
-
-	.bmdma_setup 	= ata_bmdma_setup,
-	.bmdma_start 	= ata_bmdma_start,
-	.bmdma_stop	= ata_bmdma_stop,
-	.bmdma_status 	= ata_bmdma_status,
-
-	.freeze		= ata_bmdma_freeze,
-	.thaw		= ata_bmdma_thaw,
-	.error_handler	= cs5530_error_handler,
-	.post_internal_cmd = ata_bmdma_post_internal_cmd,
-
-	.qc_prep 	= ata_qc_prep,
-	.qc_issue	= cs5530_qc_issue_prot,
-	.eng_timeout	= ata_eng_timeout,
-	.data_xfer	= ata_pio_data_xfer,
-
-	.irq_handler	= ata_interrupt,
-	.irq_clear	= ata_bmdma_irq_clear,
-
-	.port_start	= ata_port_start,
-	.port_stop	= ata_port_stop,
-	.host_stop	= ata_host_stop
 };
 
-static struct dmi_system_id palmax_dmi_table[] = {
+static const struct dmi_system_id palmax_dmi_table[] = {
 	{
 		.ident = "Palmax PD1100",
 		.matches = {
@@ -238,38 +194,18 @@ static int cs5530_is_palmax(void)
 	return 0;
 }
 
+
 /**
- *	cs5530_init_one		-	Initialise a CS5530
- *	@dev: PCI device
- *	@id: Entry in match table
+ *	cs5530_init_chip	-	Chipset init
  *
- *	Install a driver for the newly found CS5530 companion chip. Most of
- *	this is just housekeeping. We have to set the chip up correctly and
- *	turn off various bits of emulation magic.
+ *	Perform the chip initialisation work that is shared between both
+ *	setup and resume paths
  */
 
-static int cs5530_init_one(struct pci_dev *dev, const struct pci_device_id *id)
+static int cs5530_init_chip(void)
 {
-	int compiler_warning_pointless_fix;
-	struct pci_dev *master_0 = NULL, *cs5530_0 = NULL;
-	static struct ata_port_info info = {
-		.sht = &cs5530_sht,
-		.flags = ATA_FLAG_SLAVE_POSS|ATA_FLAG_SRST,
-		.pio_mask = 0x1f,
-		.mwdma_mask = 0x07,
-		.udma_mask = 0x07,
-		.port_ops = &cs5530_port_ops
-	};
-	/* The docking connector doesn't do UDMA, and it seems not MWDMA */
-	static struct ata_port_info info_palmax_secondary = {
-		.sht = &cs5530_sht,
-		.flags = ATA_FLAG_SLAVE_POSS|ATA_FLAG_SRST,
-		.pio_mask = 0x1f,
-		.port_ops = &cs5530_port_ops
-	};
-	static struct ata_port_info *port_info[2] = { &info, &info };
+	struct pci_dev *master_0 = NULL, *cs5530_0 = NULL, *dev = NULL;
 
-	dev = NULL;
 	while ((dev = pci_get_device(PCI_VENDOR_ID_CYRIX, PCI_ANY_ID, dev)) != NULL) {
 		switch (dev->device) {
 			case PCI_DEVICE_ID_CYRIX_PCI_MASTER:
@@ -290,7 +226,7 @@ static int cs5530_init_one(struct pci_dev *dev, const struct pci_device_id *id)
 	}
 
 	pci_set_master(cs5530_0);
-	compiler_warning_pointless_fix = pci_set_mwi(cs5530_0);
+	pci_try_set_mwi(cs5530_0);
 
 	/*
 	 * Set PCI CacheLineSize to 16-bytes:
@@ -338,13 +274,7 @@ static int cs5530_init_one(struct pci_dev *dev, const struct pci_device_id *id)
 
 	pci_dev_put(master_0);
 	pci_dev_put(cs5530_0);
-
-	if (cs5530_is_palmax())
-		port_info[1] = &info_palmax_secondary;
-
-	/* Now kick off ATA set up */
-	return ata_pci_init_one(dev, port_info, 2);
-
+	return 0;
 fail_put:
 	if (master_0)
 		pci_dev_put(master_0);
@@ -353,35 +283,89 @@ fail_put:
 	return -ENODEV;
 }
 
-static struct pci_device_id cs5530[] = {
-	{ PCI_DEVICE(PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_5530_IDE), },
-	{ 0, },
-};
-
-static struct pci_driver cs5530_pci_driver = {
-        .name 		= DRV_NAME,
-	.id_table	= cs5530,
-	.probe 		= cs5530_init_one,
-	.remove		= ata_pci_remove_one
-};
+/**
+ *	cs5530_init_one		-	Initialise a CS5530
+ *	@dev: PCI device
+ *	@id: Entry in match table
+ *
+ *	Install a driver for the newly found CS5530 companion chip. Most of
+ *	this is just housekeeping. We have to set the chip up correctly and
+ *	turn off various bits of emulation magic.
+ */
 
-static int __init cs5530_init(void)
+static int cs5530_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
 {
-	return pci_register_driver(&cs5530_pci_driver);
-}
+	static const struct ata_port_info info = {
+		.flags = ATA_FLAG_SLAVE_POSS,
+		.pio_mask = ATA_PIO4,
+		.mwdma_mask = ATA_MWDMA2,
+		.udma_mask = ATA_UDMA2,
+		.port_ops = &cs5530_port_ops
+	};
+	/* The docking connector doesn't do UDMA, and it seems not MWDMA */
+	static const struct ata_port_info info_palmax_secondary = {
+		.flags = ATA_FLAG_SLAVE_POSS,
+		.pio_mask = ATA_PIO4,
+		.port_ops = &cs5530_port_ops
+	};
+	const struct ata_port_info *ppi[] = { &info, NULL };
+	int rc;
 
+	rc = pcim_enable_device(pdev);
+	if (rc)
+		return rc;
 
-static void __exit cs5530_exit(void)
+	/* Chip initialisation */
+	if (cs5530_init_chip())
+		return -ENODEV;
+
+	if (cs5530_is_palmax())
+		ppi[1] = &info_palmax_secondary;
+
+	/* Now kick off ATA set up */
+	return ata_pci_bmdma_init_one(pdev, ppi, &cs5530_sht, NULL, 0);
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int cs5530_reinit_one(struct pci_dev *pdev)
 {
-	pci_unregister_driver(&cs5530_pci_driver);
+	struct ata_host *host = pci_get_drvdata(pdev);
+	int rc;
+
+	rc = ata_pci_device_do_resume(pdev);
+	if (rc)
+		return rc;
+
+	/* If we fail on resume we are doomed */
+	if (cs5530_init_chip())
+		return -EIO;
+
+	ata_host_resume(host);
+	return 0;
 }
+#endif /* CONFIG_PM_SLEEP */
 
+static const struct pci_device_id cs5530[] = {
+	{ PCI_VDEVICE(CYRIX, PCI_DEVICE_ID_CYRIX_5530_IDE), },
+
+	{ },
+};
+
+static struct pci_driver cs5530_pci_driver = {
+	.name 		= DRV_NAME,
+	.id_table	= cs5530,
+	.probe 		= cs5530_init_one,
+	.remove		= ata_pci_remove_one,
+#ifdef CONFIG_PM_SLEEP
+	.suspend	= ata_pci_device_suspend,
+	.resume		= cs5530_reinit_one,
+#endif
+};
+
+module_pci_driver(cs5530_pci_driver);
 
 MODULE_AUTHOR("Alan Cox");
 MODULE_DESCRIPTION("low-level driver for the Cyrix/NS/AMD 5530");
 MODULE_LICENSE("GPL");
 MODULE_DEVICE_TABLE(pci, cs5530);
 MODULE_VERSION(DRV_VERSION);
-
-module_init(cs5530_init);
-module_exit(cs5530_exit);