[ARM] ecard: add ecardm_iomap() / ecardm_iounmap()

Add devres ecardm_iomap() and ecardm_iounmap() for Acorn expansion
cards.  Convert all expansion card drivers to use them.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

13 files changed, 53 insertions, 118 deletions

diff --git a/arch/arm/kernel/ecard.c b/arch/arm/kernel/ecard.c
index 65f1398723a4..f56d48c451ea 100644
--- a/arch/arm/kernel/ecard.c
+++ b/arch/arm/kernel/ecard.c
@@ -41,11 +41,11 @@
 #include <linux/init.h>
 #include <linux/mutex.h>
 #include <linux/kthread.h>
+#include <linux/io.h>
 
 #include <asm/dma.h>
 #include <asm/ecard.h>
 #include <asm/hardware.h>
-#include <asm/io.h>
 #include <asm/irq.h>
 #include <asm/mmu_context.h>
 #include <asm/mach/irq.h>
@@ -966,6 +966,23 @@ void ecard_setirq(struct expansion_card *ec, const struct expansion_card_ops *op
 }
 EXPORT_SYMBOL(ecard_setirq);
 
+void __iomem *ecardm_iomap(struct expansion_card *ec, unsigned int res,
+                           unsigned long offset, unsigned long maxsize)
+{
+        unsigned long start = ecard_resource_start(ec, res);
+        unsigned long end = ecard_resource_end(ec, res);
+
+        if (offset > (end - start))
+                return NULL;
+
+        start += offset;
+        if (maxsize && end - start > maxsize)
+                end = start + maxsize;
+        
+        return devm_ioremap(&ec->dev, start, end - start);
+}
+EXPORT_SYMBOL(ecardm_iomap);
+
 /*
  * Probe for an expansion card.
  *
diff --git a/drivers/ata/pata_icside.c b/drivers/ata/pata_icside.c
index d7621a39ed09..d323e75b05d5 100644
--- a/drivers/ata/pata_icside.c
+++ b/drivers/ata/pata_icside.c
@@ -425,8 +425,7 @@ pata_icside_register_v5(struct ata_probe_ent *ae, struct expansion_card *ec)
         struct pata_icside_state *state = ae->private_data;
         void __iomem *base;
 
-        base = ioremap(ecard_resource_start(ec, ECARD_RES_MEMC),
-                       ecard_resource_len(ec, ECARD_RES_MEMC));
+        base = ecardm_iomap(info->ec, ECARD_RES_MEMC, 0, 0);
         if (!base)
                 return -ENOMEM;
 
@@ -453,24 +452,17 @@ pata_icside_register_v6(struct ata_probe_ent *ae, struct expansion_card *ec)
         struct pata_icside_state *state = ae->private_data;
         void __iomem *ioc_base, *easi_base;
         unsigned int sel = 0;
-        int ret;
 
-        ioc_base = ioremap(ecard_resource_start(ec, ECARD_RES_IOCFAST),
-                           ecard_resource_len(ec, ECARD_RES_IOCFAST));
-        if (!ioc_base) {
-                ret = -ENOMEM;
-                goto out;
-        }
+        ioc_base = ecardm_iomap(ec, ECARD_RES_IOCFAST, 0, 0);
+        if (!ioc_base)
+                return -ENOMEM;
 
         easi_base = ioc_base;
 
         if (ecard_resource_flags(ec, ECARD_RES_EASI)) {
-                easi_base = ioremap(ecard_resource_start(ec, ECARD_RES_EASI),
-                                    ecard_resource_len(ec, ECARD_RES_EASI));
-                if (!easi_base) {
-                        ret = -ENOMEM;
-                        goto unmap_slot;
-                }
+                easi_base = ecardm_iomap(ec, ECARD_RES_EASI, 0, 0);
+                if (!easi_base)
+                        return -ENOMEM;
 
                 /*
                  * Enable access to the EASI region.
@@ -507,10 +499,6 @@ pata_icside_register_v6(struct ata_probe_ent *ae, struct expansion_card *ec)
 
         return icside_dma_init(ae, ec);
 
- unmap_slot:
-        iounmap(ioc_base);
- out:
-        return ret;
 }
 
 static int __devinit
@@ -534,8 +522,7 @@ pata_icside_probe(struct expansion_card *ec, const struct ecard_id *id)
         state->type = ICS_TYPE_NOTYPE;
         state->dma = NO_DMA;
 
-        idmem = ioremap(ecard_resource_start(ec, ECARD_RES_IOCFAST),
-                        ecard_resource_len(ec, ECARD_RES_IOCFAST));
+        idmem = ecardm_iomap(ec, ECARD_RES_IOCFAST, 0, 0);
         if (idmem) {
                 unsigned int type;
 
@@ -543,7 +530,7 @@ pata_icside_probe(struct expansion_card *ec, const struct ecard_id *id)
                 type |= (readb(idmem + ICS_IDENT_OFFSET + 4) & 1) << 1;
                 type |= (readb(idmem + ICS_IDENT_OFFSET + 8) & 1) << 2;
                 type |= (readb(idmem + ICS_IDENT_OFFSET + 12) & 1) << 3;
-                iounmap(idmem);
+                ecardm_iounmap(ec, idmem);
 
                 state->type = type;
         }
@@ -638,10 +625,6 @@ static void __devexit pata_icside_remove(struct expansion_card *ec)
          */
         if (state->dma != NO_DMA)
                 free_dma(state->dma);
-        if (state->ioc_base)
-                iounmap(state->ioc_base);
-        if (state->ioc_base != state->irq_port)
-                iounmap(state->irq_port);
 
         kfree(state);
         ecard_release_resources(ec);
diff --git a/drivers/ide/arm/icside.c b/drivers/ide/arm/icside.c
index 69c949ea93e3..66f826252aee 100644
--- a/drivers/ide/arm/icside.c
+++ b/drivers/ide/arm/icside.c
@@ -565,8 +565,7 @@ icside_register_v5(struct icside_state *state, struct expansion_card *ec)
         ide_hwif_t *hwif;
         void __iomem *base;
 
-        base = ioremap(ecard_resource_start(ec, ECARD_RES_MEMC),
-                       ecard_resource_len(ec, ECARD_RES_MEMC));
+        base = ecardm_iomap(ec, ECARD_RES_MEMC, 0, 0);
         if (!base)
                 return -ENOMEM;
 
@@ -583,10 +582,8 @@ icside_register_v5(struct icside_state *state, struct expansion_card *ec)
         icside_irqdisable_arcin_v5(ec, 0);
 
         hwif = icside_setup(base, &icside_cardinfo_v5, ec);
-        if (!hwif) {
-                iounmap(base);
+        if (!hwif)
                 return -ENODEV;
-        }
 
         state->hwif[0] = hwif;
 
@@ -605,8 +602,7 @@ icside_register_v6(struct icside_state *state, struct expansion_card *ec)
         unsigned int sel = 0;
         int ret;
 
-        ioc_base = ioremap(ecard_resource_start(ec, ECARD_RES_IOCFAST),
-                           ecard_resource_len(ec, ECARD_RES_IOCFAST));
+        ioc_base = ecardm_iomap(ec, ECARD_RES_IOCFAST, 0, 0);
         if (!ioc_base) {
                 ret = -ENOMEM;
                 goto out;
@@ -615,11 +611,10 @@ icside_register_v6(struct icside_state *state, struct expansion_card *ec)
         easi_base = ioc_base;
 
         if (ecard_resource_flags(ec, ECARD_RES_EASI)) {
-                easi_base = ioremap(ecard_resource_start(ec, ECARD_RES_EASI),
-                                    ecard_resource_len(ec, ECARD_RES_EASI));
+                easi_base = ecardm_iomap(ec, ECARD_RES_EASI, 0, 0);
                 if (!easi_base) {
                         ret = -ENOMEM;
-                        goto unmap_slot;
+                        goto out;
                 }
 
                 /*
@@ -648,7 +643,7 @@ icside_register_v6(struct icside_state *state, struct expansion_card *ec)
 
         if (!hwif || !mate) {
                 ret = -ENODEV;
-                goto unmap_port;
+                goto out;
         }
 
         state->hwif[0]    = hwif;
@@ -685,11 +680,6 @@ icside_register_v6(struct icside_state *state, struct expansion_card *ec)
 
         return 0;
 
- unmap_port:
-        if (easi_base != ioc_base)
-                iounmap(easi_base);
- unmap_slot:
-        iounmap(ioc_base);
  out:
         return ret;
 }
@@ -715,8 +705,7 @@ icside_probe(struct expansion_card *ec, const struct ecard_id *id)
         state->type     = ICS_TYPE_NOTYPE;
         state->dev      = &ec->dev;
 
-        idmem = ioremap(ecard_resource_start(ec, ECARD_RES_IOCFAST),
-                        ecard_resource_len(ec, ECARD_RES_IOCFAST));
+        idmem = ecardm_iomap(ec, ECARD_RES_IOCFAST, 0, 0);
         if (idmem) {
                 unsigned int type;
 
@@ -724,7 +713,7 @@ icside_probe(struct expansion_card *ec, const struct ecard_id *id)
                 type |= (readb(idmem + ICS_IDENT_OFFSET + 4) & 1) << 1;
                 type |= (readb(idmem + ICS_IDENT_OFFSET + 8) & 1) << 2;
                 type |= (readb(idmem + ICS_IDENT_OFFSET + 12) & 1) << 3;
-                iounmap(idmem);
+                ecardm_iounmap(ec, idmem);
 
                 state->type = type;
         }
@@ -793,11 +782,6 @@ static void __devexit icside_remove(struct expansion_card *ec)
 
         ecard_set_drvdata(ec, NULL);
 
-        if (state->ioc_base)
-                iounmap(state->ioc_base);
-        if (state->ioc_base != state->irq_port)
-                iounmap(state->irq_port);
-
         kfree(state);
         ecard_release_resources(ec);
 }
diff --git a/drivers/ide/arm/rapide.c b/drivers/ide/arm/rapide.c
index 890ea3fac3c6..83811af11610 100644
--- a/drivers/ide/arm/rapide.c
+++ b/drivers/ide/arm/rapide.c
@@ -63,8 +63,7 @@ rapide_probe(struct expansion_card *ec, const struct ecard_id *id)
         if (ret)
                 goto out;
 
-        base = ioremap(ecard_resource_start(ec, ECARD_RES_MEMC),
-                       ecard_resource_len(ec, ECARD_RES_MEMC));
+        base = ecardm_iomap(ec, ECARD_RES_MEMC, 0, 0);
         if (!base) {
                 ret = -ENOMEM;
                 goto release;
@@ -81,7 +80,6 @@ rapide_probe(struct expansion_card *ec, const struct ecard_id *id)
                 goto out;
         }
 
-        iounmap(base);
  release:
         ecard_release_resources(ec);
  out:
@@ -96,7 +94,6 @@ static void __devexit rapide_remove(struct expansion_card *ec)
 
         /* there must be a better way */
         ide_unregister(hwif - ide_hwifs);
-        iounmap(hwif->hwif_data);
         ecard_release_resources(ec);
 }
 
diff --git a/drivers/net/arm/ether1.c b/drivers/net/arm/ether1.c
index f075cebe84ad..f21148e7b579 100644
--- a/drivers/net/arm/ether1.c
+++ b/drivers/net/arm/ether1.c
@@ -1014,8 +1014,7 @@ ether1_probe(struct expansion_card *ec, const struct ecard_id *id)
         SET_NETDEV_DEV(dev, &ec->dev);
 
         dev->irq = ec->irq;
-        priv(dev)->base = ioremap(ecard_resource_start(ec, ECARD_RES_IOCFAST),
-                                  ecard_resource_len(ec, ECARD_RES_IOCFAST));
+        priv(dev)->base = ecardm_iomap(ec, ECARD_RES_IOCFAST, 0, 0);
         if (!priv(dev)->base) {
                 ret = -ENOMEM;
                 goto free;
@@ -1056,8 +1055,6 @@ ether1_probe(struct expansion_card *ec, const struct ecard_id *id)
         return 0;
 
  free:
-        if (priv(dev)->base)
-                iounmap(priv(dev)->base);
         free_netdev(dev);
  release:
         ecard_release_resources(ec);
@@ -1072,7 +1069,6 @@ static void __devexit ether1_remove(struct expansion_card *ec)
         ecard_set_drvdata(ec, NULL);    
 
         unregister_netdev(dev);
-        iounmap(priv(dev)->base);
         free_netdev(dev);
         ecard_release_resources(ec);
 }
diff --git a/drivers/net/arm/ether3.c b/drivers/net/arm/ether3.c
index 32da2eb9bcee..da713500654d 100644
--- a/drivers/net/arm/ether3.c
+++ b/drivers/net/arm/ether3.c
@@ -793,8 +793,7 @@ ether3_probe(struct expansion_card *ec, const struct ecard_id *id)
         SET_MODULE_OWNER(dev);
         SET_NETDEV_DEV(dev, &ec->dev);
 
-        priv(dev)->base = ioremap(ecard_resource_start(ec, ECARD_RES_MEMC),
-                                  ecard_resource_len(ec, ECARD_RES_MEMC));
+        priv(dev)->base = ecardm_iomap(ec, ECARD_RES_MEMC, 0, 0);
         if (!priv(dev)->base) {
                 ret = -ENOMEM;
                 goto free;
@@ -869,8 +868,6 @@ ether3_probe(struct expansion_card *ec, const struct ecard_id *id)
         return 0;
 
  free:
-        if (priv(dev)->base)
-                iounmap(priv(dev)->base);
         free_netdev(dev);
  release:
         ecard_release_resources(ec);
@@ -885,7 +882,6 @@ static void __devexit ether3_remove(struct expansion_card *ec)
         ecard_set_drvdata(ec, NULL);
 
         unregister_netdev(dev);
-        iounmap(priv(dev)->base);
         free_netdev(dev);
         ecard_release_resources(ec);
 }
diff --git a/drivers/net/arm/etherh.c b/drivers/net/arm/etherh.c
index 387f1e3a4e84..769ba69451f4 100644
--- a/drivers/net/arm/etherh.c
+++ b/drivers/net/arm/etherh.c
@@ -686,7 +686,7 @@ etherh_probe(struct expansion_card *ec, const struct ecard_id *id)
         eh->supported           = data->supported;
         eh->ctrl                = 0;
         eh->id                  = ec->cid.product;
-        eh->memc                = ioremap(ecard_resource_start(ec, ECARD_RES_MEMC), PAGE_SIZE);
+        eh->memc                = ecardm_iomap(ec, ECARD_RES_MEMC, 0, PAGE_SIZE);
         if (!eh->memc) {
                 ret = -ENOMEM;
                 goto free;
@@ -694,7 +694,7 @@ etherh_probe(struct expansion_card *ec, const struct ecard_id *id)
 
         eh->ctrl_port = eh->memc;
         if (data->ctrl_ioc) {
-                eh->ioc_fast = ioremap(ecard_resource_start(ec, ECARD_RES_IOCFAST), PAGE_SIZE);
+                eh->ioc_fast = ecardm_iomap(ec, ECARD_RES_IOCFAST, 0, PAGE_SIZE);
                 if (!eh->ioc_fast) {
                         ret = -ENOMEM;
                         goto free;
@@ -758,10 +758,6 @@ etherh_probe(struct expansion_card *ec, const struct ecard_id *id)
         return 0;
 
  free:
-        if (eh->ioc_fast)
-                iounmap(eh->ioc_fast);
-        if (eh->memc)
-                iounmap(eh->memc);
         free_netdev(dev);
  release:
         ecard_release_resources(ec);
@@ -772,16 +768,11 @@ etherh_probe(struct expansion_card *ec, const struct ecard_id *id)
 static void __devexit etherh_remove(struct expansion_card *ec)
 {
         struct net_device *dev = ecard_get_drvdata(ec);
-        struct etherh_priv *eh = etherh_priv(dev);
 
         ecard_set_drvdata(ec, NULL);
 
         unregister_netdev(dev);
 
-        if (eh->ioc_fast)
-                iounmap(eh->ioc_fast);
-        iounmap(eh->memc);
-
         free_netdev(dev);
 
         ecard_release_resources(ec);
diff --git a/drivers/scsi/arm/arxescsi.c b/drivers/scsi/arm/arxescsi.c
index 7e132c5bacf8..2836fe248df9 100644
--- a/drivers/scsi/arm/arxescsi.c
+++ b/drivers/scsi/arm/arxescsi.c
@@ -281,7 +281,6 @@ arxescsi_probe(struct expansion_card *ec, const struct ecard_id *id)
 {
         struct Scsi_Host *host;
         struct arxescsi_info *info;
-        unsigned long resbase, reslen;
         void __iomem *base;
         int ret;
 
@@ -289,9 +288,7 @@ arxescsi_probe(struct expansion_card *ec, const struct ecard_id *id)
         if (ret)
                 goto out;
 
-        resbase = ecard_resource_start(ec, ECARD_RES_MEMC);
-        reslen = ecard_resource_len(ec, ECARD_RES_MEMC);
-        base = ioremap(resbase, reslen);
+        base = ecardm_iomap(ec, ECARD_RES_MEMC, 0, 0);
         if (!base) {
                 ret = -ENOMEM;
                 goto out_region;
@@ -300,7 +297,7 @@ arxescsi_probe(struct expansion_card *ec, const struct ecard_id *id)
         host = scsi_host_alloc(&arxescsi_template, sizeof(struct arxescsi_info));
         if (!host) {
                 ret = -ENOMEM;
-                goto out_unmap;
+                goto out_region;
         }
 
         info = (struct arxescsi_info *)host->hostdata;
@@ -337,8 +334,6 @@ arxescsi_probe(struct expansion_card *ec, const struct ecard_id *id)
         fas216_release(host);
  out_unregister:
         scsi_host_put(host);
- out_unmap:
-        iounmap(base);
  out_region:
         ecard_release_resources(ec);
  out:
@@ -348,13 +343,10 @@ arxescsi_probe(struct expansion_card *ec, const struct ecard_id *id)
 static void __devexit arxescsi_remove(struct expansion_card *ec)
 {
         struct Scsi_Host *host = ecard_get_drvdata(ec);
-        struct arxescsi_info *info = (struct arxescsi_info *)host->hostdata;
 
         ecard_set_drvdata(ec, NULL);
         fas216_remove(host);
 
-        iounmap(info->base);
-
         fas216_release(host);
         scsi_host_put(host);
         ecard_release_resources(ec);
diff --git a/drivers/scsi/arm/cumana_2.c b/drivers/scsi/arm/cumana_2.c
index f51aa3446bc7..68a64123af8f 100644
--- a/drivers/scsi/arm/cumana_2.c
+++ b/drivers/scsi/arm/cumana_2.c
@@ -401,7 +401,6 @@ cumanascsi2_probe(struct expansion_card *ec, const struct ecard_id *id)
 {
         struct Scsi_Host *host;
         struct cumanascsi2_info *info;
-        unsigned long resbase, reslen;
         void __iomem *base;
         int ret;
 
@@ -409,9 +408,7 @@ cumanascsi2_probe(struct expansion_card *ec, const struct ecard_id *id)
         if (ret)
                 goto out;
 
-        resbase = ecard_resource_start(ec, ECARD_RES_MEMC);
-        reslen = ecard_resource_len(ec, ECARD_RES_MEMC);
-        base = ioremap(resbase, reslen);
+        base = ecardm_iomap(ec, ECARD_RES_MEMC, 0, 0);
         if (!base) {
                 ret = -ENOMEM;
                 goto out_region;
@@ -421,7 +418,7 @@ cumanascsi2_probe(struct expansion_card *ec, const struct ecard_id *id)
                                sizeof(struct cumanascsi2_info));
         if (!host) {
                 ret = -ENOMEM;
-                goto out_unmap;
+                goto out_region;
         }
 
         ecard_set_drvdata(ec, host);
@@ -490,9 +487,6 @@ cumanascsi2_probe(struct expansion_card *ec, const struct ecard_id *id)
  out_free:
         scsi_host_put(host);
 
- out_unmap:
-        iounmap(base);
-
  out_region:
         ecard_release_resources(ec);
 
@@ -512,8 +506,6 @@ static void __devexit cumanascsi2_remove(struct expansion_card *ec)
                 free_dma(info->info.scsi.dma);
         free_irq(ec->irq, info);
 
-        iounmap(info->base);
-
         fas216_release(host);
         scsi_host_put(host);
         ecard_release_resources(ec);
diff --git a/drivers/scsi/arm/eesox.c b/drivers/scsi/arm/eesox.c
index cc5d513aa99a..bb2477b3fb0b 100644
--- a/drivers/scsi/arm/eesox.c
+++ b/drivers/scsi/arm/eesox.c
@@ -519,7 +519,6 @@ eesoxscsi_probe(struct expansion_card *ec, const struct ecard_id *id)
 {
         struct Scsi_Host *host;
         struct eesoxscsi_info *info;
-        unsigned long resbase, reslen;
         void __iomem *base;
         int ret;
 
@@ -527,9 +526,7 @@ eesoxscsi_probe(struct expansion_card *ec, const struct ecard_id *id)
         if (ret)
                 goto out;
 
-        resbase = ecard_resource_start(ec, ECARD_RES_IOCFAST);
-        reslen = ecard_resource_len(ec, ECARD_RES_IOCFAST);
-        base = ioremap(resbase, reslen);
+        base = ecardm_iomap(ec, ECARD_RES_IOCFAST, 0, 0);
         if (!base) {
                 ret = -ENOMEM;
                 goto out_region;
@@ -539,7 +536,7 @@ eesoxscsi_probe(struct expansion_card *ec, const struct ecard_id *id)
                                sizeof(struct eesoxscsi_info));
         if (!host) {
                 ret = -ENOMEM;
-                goto out_unmap;
+                goto out_region;
         }
 
         ecard_set_drvdata(ec, host);
@@ -612,9 +609,6 @@ eesoxscsi_probe(struct expansion_card *ec, const struct ecard_id *id)
         device_remove_file(&ec->dev, &dev_attr_bus_term);
         scsi_host_put(host);
 
- out_unmap:
-        iounmap(base);
-
  out_region:
         ecard_release_resources(ec);
 
@@ -636,8 +630,6 @@ static void __devexit eesoxscsi_remove(struct expansion_card *ec)
 
         device_remove_file(&ec->dev, &dev_attr_bus_term);
 
-        iounmap(info->base);
-
         fas216_release(host);
         scsi_host_put(host);
         ecard_release_resources(ec);
diff --git a/drivers/scsi/arm/powertec.c b/drivers/scsi/arm/powertec.c
index 3cbd525b58c5..d9a546d1917c 100644
--- a/drivers/scsi/arm/powertec.c
+++ b/drivers/scsi/arm/powertec.c
@@ -313,7 +313,6 @@ powertecscsi_probe(struct expansion_card *ec, const struct ecard_id *id)
 {
         struct Scsi_Host *host;
         struct powertec_info *info;
-        unsigned long resbase, reslen;
         void __iomem *base;
         int ret;
 
@@ -321,9 +320,7 @@ powertecscsi_probe(struct expansion_card *ec, const struct ecard_id *id)
         if (ret)
                 goto out;
 
-        resbase = ecard_resource_start(ec, ECARD_RES_IOCFAST);
-        reslen = ecard_resource_len(ec, ECARD_RES_IOCFAST);
-        base = ioremap(resbase, reslen);
+        base = ecardm_iomap(ec, ECARD_RES_IOCFAST, 0, 0);
         if (!base) {
                 ret = -ENOMEM;
                 goto out_region;
@@ -333,7 +330,7 @@ powertecscsi_probe(struct expansion_card *ec, const struct ecard_id *id)
                                sizeof (struct powertec_info));
         if (!host) {
                 ret = -ENOMEM;
-                goto out_unmap;
+                goto out_region;
         }
 
         ecard_set_drvdata(ec, host);
@@ -404,9 +401,6 @@ powertecscsi_probe(struct expansion_card *ec, const struct ecard_id *id)
         device_remove_file(&ec->dev, &dev_attr_bus_term);
         scsi_host_put(host);
 
- out_unmap:
-        iounmap(base);
-
  out_region:
         ecard_release_resources(ec);
 
@@ -428,8 +422,6 @@ static void __devexit powertecscsi_remove(struct expansion_card *ec)
                 free_dma(info->info.scsi.dma);
         free_irq(ec->irq, info);
 
-        iounmap(info->base);
-
         fas216_release(host);
         scsi_host_put(host);
         ecard_release_resources(ec);
diff --git a/drivers/serial/8250_acorn.c b/drivers/serial/8250_acorn.c
index 562ba745a044..b0ce8c56f1a4 100644
--- a/drivers/serial/8250_acorn.c
+++ b/drivers/serial/8250_acorn.c
@@ -54,7 +54,7 @@ serial_card_probe(struct expansion_card *ec, const struct ecard_id *id)
         info->num_ports = type->num_ports;
 
         bus_addr = ecard_resource_start(ec, type->type);
-        info->vaddr = ioremap(bus_addr, ecard_resource_len(ec, type->type));
+        info->vaddr = ecardm_iomap(ec, type->type, 0, 0);
         if (!info->vaddr) {
                 kfree(info);
                 return -ENOMEM;
@@ -91,7 +91,6 @@ static void __devexit serial_card_remove(struct expansion_card *ec)
                 if (info->ports[i] > 0)
                         serial8250_unregister_port(info->ports[i]);
 
-        iounmap(info->vaddr);
         kfree(info);
 }
 
diff --git a/include/asm-arm/ecard.h b/include/asm-arm/ecard.h
index 8f1000eac91f..684fe0645239 100644
--- a/include/asm-arm/ecard.h
+++ b/include/asm-arm/ecard.h
@@ -226,6 +226,10 @@ ecard_address(struct expansion_card *ec, card_type_t type, card_speed_t speed)
 extern int ecard_request_resources(struct expansion_card *ec);
 extern void ecard_release_resources(struct expansion_card *ec);
 
+void __iomem *ecardm_iomap(struct expansion_card *ec, unsigned int res,
+                           unsigned long offset, unsigned long maxsize);
+#define ecardm_iounmap(__ec, __addr)    devm_iounmap(&(__ec)->dev, __addr)
+
 extern struct bus_type ecard_bus_type;
 
 #define ECARD_DEV(_d)   container_of((_d), struct expansion_card, dev)