sata_dwc_460ex: fix most of the sparse warnings
There are a lot sparse warnings. Most of them related to __iomem keyword which
sometimes absent when it's needed and vise versa.
The patch fixes most of the warnings.
While at it, remove the redundant sata_dwc_sht.can_queue
initialization to ATA_DEF_QUEUE.
tj: Added description about ATA_DEF_QUEUE init removal.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
diff --git a/drivers/ata/sata_dwc_460ex.c b/drivers/ata/sata_dwc_460ex.c
index c1723e0..6c1b649 100644
--- a/drivers/ata/sata_dwc_460ex.c
+++ b/drivers/ata/sata_dwc_460ex.c
@@ -285,7 +285,7 @@
struct device *dev; /* generic device struct */
struct ata_probe_ent *pe; /* ptr to probe-ent */
struct ata_host *host;
- u8 *reg_base;
+ u8 __iomem *reg_base;
struct sata_dwc_regs *sata_dwc_regs; /* DW Synopsys SATA specific */
int irq_dma;
};
@@ -335,7 +335,9 @@
struct device *dwc_dev;
int dma_channel;
};
-struct sata_dwc_host_priv host_pvt;
+
+static struct sata_dwc_host_priv host_pvt;
+
/*
* Prototypes
*/
@@ -592,9 +594,9 @@
sms_val = 0;
dms_val = 1 + host_pvt.dma_channel;
- dev_dbg(host_pvt.dwc_dev, "%s: sg=%p nelem=%d lli=%p dma_lli=0x%08x"
- " dmadr=0x%08x\n", __func__, sg, num_elems, lli, (u32)dma_lli,
- (u32)dmadr_addr);
+ dev_dbg(host_pvt.dwc_dev,
+ "%s: sg=%p nelem=%d lli=%p dma_lli=0x%pad dmadr=0x%p\n",
+ __func__, sg, num_elems, lli, &dma_lli, dmadr_addr);
bl = get_burst_length_encode(AHB_DMA_BRST_DFLT);
@@ -785,7 +787,7 @@
{
dev_dbg(host_pvt.dwc_dev, "%s:\n", __func__);
if (host_pvt.sata_dma_regs) {
- iounmap(host_pvt.sata_dma_regs);
+ iounmap((void __iomem *)host_pvt.sata_dma_regs);
host_pvt.sata_dma_regs = NULL;
}
@@ -830,7 +832,7 @@
return -EINVAL;
}
- *val = in_le32((void *)link->ap->ioaddr.scr_addr + (scr * 4));
+ *val = in_le32(link->ap->ioaddr.scr_addr + (scr * 4));
dev_dbg(link->ap->dev, "%s: id=%d reg=%d val=val=0x%08x\n",
__func__, link->ap->print_id, scr, *val);
@@ -846,21 +848,19 @@
__func__, scr);
return -EINVAL;
}
- out_le32((void *)link->ap->ioaddr.scr_addr + (scr * 4), val);
+ out_le32(link->ap->ioaddr.scr_addr + (scr * 4), val);
return 0;
}
static u32 core_scr_read(unsigned int scr)
{
- return in_le32((void __iomem *)(host_pvt.scr_addr_sstatus) +\
- (scr * 4));
+ return in_le32(host_pvt.scr_addr_sstatus + (scr * 4));
}
static void core_scr_write(unsigned int scr, u32 val)
{
- out_le32((void __iomem *)(host_pvt.scr_addr_sstatus) + (scr * 4),
- val);
+ out_le32(host_pvt.scr_addr_sstatus + (scr * 4), val);
}
static void clear_serror(void)
@@ -868,7 +868,6 @@
u32 val;
val = core_scr_read(SCR_ERROR);
core_scr_write(SCR_ERROR, val);
-
}
static void clear_interrupt_bit(struct sata_dwc_device *hsdev, u32 bit)
@@ -1268,24 +1267,24 @@
static void sata_dwc_setup_port(struct ata_ioports *port, unsigned long base)
{
- port->cmd_addr = (void *)base + 0x00;
- port->data_addr = (void *)base + 0x00;
+ port->cmd_addr = (void __iomem *)base + 0x00;
+ port->data_addr = (void __iomem *)base + 0x00;
- port->error_addr = (void *)base + 0x04;
- port->feature_addr = (void *)base + 0x04;
+ port->error_addr = (void __iomem *)base + 0x04;
+ port->feature_addr = (void __iomem *)base + 0x04;
- port->nsect_addr = (void *)base + 0x08;
+ port->nsect_addr = (void __iomem *)base + 0x08;
- port->lbal_addr = (void *)base + 0x0c;
- port->lbam_addr = (void *)base + 0x10;
- port->lbah_addr = (void *)base + 0x14;
+ port->lbal_addr = (void __iomem *)base + 0x0c;
+ port->lbam_addr = (void __iomem *)base + 0x10;
+ port->lbah_addr = (void __iomem *)base + 0x14;
- port->device_addr = (void *)base + 0x18;
- port->command_addr = (void *)base + 0x1c;
- port->status_addr = (void *)base + 0x1c;
+ port->device_addr = (void __iomem *)base + 0x18;
+ port->command_addr = (void __iomem *)base + 0x1c;
+ port->status_addr = (void __iomem *)base + 0x1c;
- port->altstatus_addr = (void *)base + 0x20;
- port->ctl_addr = (void *)base + 0x20;
+ port->altstatus_addr = (void __iomem *)base + 0x20;
+ port->ctl_addr = (void __iomem *)base + 0x20;
}
/*
@@ -1326,7 +1325,7 @@
for (i = 0; i < SATA_DWC_QCMD_MAX; i++)
hsdevp->cmd_issued[i] = SATA_DWC_CMD_ISSUED_NOT;
- ap->bmdma_prd = 0; /* set these so libata doesn't use them */
+ ap->bmdma_prd = NULL; /* set these so libata doesn't use them */
ap->bmdma_prd_dma = 0;
/*
@@ -1523,8 +1522,8 @@
dma_chan = dma_dwc_xfer_setup(sg, qc->n_elem, hsdevp->llit[tag],
hsdevp->llit_dma[tag],
- (void *__iomem)(&hsdev->sata_dwc_regs->\
- dmadr), qc->dma_dir);
+ (void __iomem *)&hsdev->sata_dwc_regs->dmadr,
+ qc->dma_dir);
if (dma_chan < 0) {
dev_err(ap->dev, "%s: dma_dwc_xfer_setup returns err %d\n",
__func__, dma_chan);
@@ -1597,8 +1596,8 @@
ata_sff_error_handler(ap);
}
-int sata_dwc_hardreset(struct ata_link *link, unsigned int *class,
- unsigned long deadline)
+static int sata_dwc_hardreset(struct ata_link *link, unsigned int *class,
+ unsigned long deadline)
{
struct sata_dwc_device *hsdev = HSDEV_FROM_AP(link->ap);
int ret;
@@ -1630,7 +1629,7 @@
* max of 1. This will get fixed in in a future release.
*/
.sg_tablesize = LIBATA_MAX_PRD,
- .can_queue = ATA_DEF_QUEUE, /* ATA_MAX_QUEUE */
+ /* .can_queue = ATA_MAX_QUEUE, */
.dma_boundary = ATA_DMA_BOUNDARY,
};
@@ -1667,7 +1666,7 @@
struct sata_dwc_device *hsdev;
u32 idr, versionr;
char *ver = (char *)&versionr;
- u8 *base = NULL;
+ u8 __iomem *base;
int err = 0;
int irq;
struct ata_host *host;
@@ -1736,7 +1735,7 @@
}
/* Get physical SATA DMA register base address */
- host_pvt.sata_dma_regs = of_iomap(ofdev->dev.of_node, 1);
+ host_pvt.sata_dma_regs = (void *)of_iomap(ofdev->dev.of_node, 1);
if (!(host_pvt.sata_dma_regs)) {
dev_err(&ofdev->dev, "ioremap failed for AHBDMA register"
" address\n");