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-rw-r--r--drivers/soc/ixp4xx/ixp4xx-npe.c36
1 files changed, 20 insertions, 16 deletions
diff --git a/drivers/soc/ixp4xx/ixp4xx-npe.c b/drivers/soc/ixp4xx/ixp4xx-npe.c
index e3294457b5de..d2dd916816d4 100644
--- a/drivers/soc/ixp4xx/ixp4xx-npe.c
+++ b/drivers/soc/ixp4xx/ixp4xx-npe.c
@@ -155,16 +155,10 @@ static struct {
static struct npe npe_tab[NPE_COUNT] = {
{
.id = 0,
- .regs = (struct npe_regs __iomem *)IXP4XX_NPEA_BASE_VIRT,
- .regs_phys = IXP4XX_NPEA_BASE_PHYS,
}, {
.id = 1,
- .regs = (struct npe_regs __iomem *)IXP4XX_NPEB_BASE_VIRT,
- .regs_phys = IXP4XX_NPEB_BASE_PHYS,
}, {
.id = 2,
- .regs = (struct npe_regs __iomem *)IXP4XX_NPEC_BASE_VIRT,
- .regs_phys = IXP4XX_NPEC_BASE_PHYS,
}
};
@@ -687,23 +681,34 @@ void npe_release(struct npe *npe)
static int ixp4xx_npe_probe(struct platform_device *pdev)
{
int i, found = 0;
+ struct device *dev = &pdev->dev;
+ struct resource *res;
for (i = 0; i < NPE_COUNT; i++) {
struct npe *npe = &npe_tab[i];
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, i);
+ if (!res)
+ return -ENODEV;
+
if (!(ixp4xx_read_feature_bits() &
- (IXP4XX_FEATURE_RESET_NPEA << i)))
+ (IXP4XX_FEATURE_RESET_NPEA << i))) {
+ dev_info(dev, "NPE%d at 0x%08x-0x%08x not available\n",
+ i, res->start, res->end);
continue; /* NPE already disabled or not present */
- if (!(npe->mem_res = request_mem_region(npe->regs_phys,
- REGS_SIZE,
- npe_name(npe)))) {
- print_npe(KERN_ERR, npe,
- "failed to request memory region\n");
- continue;
}
+ npe->regs = devm_ioremap_resource(dev, res);
+ if (!npe->regs)
+ return -ENOMEM;
- if (npe_reset(npe))
+ if (npe_reset(npe)) {
+ dev_info(dev, "NPE%d at 0x%08x-0x%08x does not reset\n",
+ i, res->start, res->end);
continue;
+ }
npe->valid = 1;
+ dev_info(dev, "NPE%d at 0x%08x-0x%08x registered\n",
+ i, res->start, res->end);
found++;
}
@@ -717,9 +722,8 @@ static int ixp4xx_npe_remove(struct platform_device *pdev)
int i;
for (i = 0; i < NPE_COUNT; i++)
- if (npe_tab[i].mem_res) {
+ if (npe_tab[i].regs) {
npe_reset(&npe_tab[i]);
- release_resource(npe_tab[i].mem_res);
}
return 0;