summaryrefslogtreecommitdiff
path: root/drivers/misc/sram.c
diff options
context:
space:
mode:
authorHerbert Xu <herbert@gondor.apana.org.au>2015-06-19 22:07:07 +0800
committerHerbert Xu <herbert@gondor.apana.org.au>2015-06-19 22:07:07 +0800
commitc0b59fafe31bf91f589736be304d739b13952fdd (patch)
tree0088a41c6b68132739294643be06734e3af67677 /drivers/misc/sram.c
parent28bceeaaf81140d69647acd0eb7dc9312f27844a (diff)
parentbfa1ce5f38938cc9e6c7f2d1011f88eba2b9e2b2 (diff)
Merge branch 'mvebu/drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Merge the mvebu/drivers branch of the arm-soc tree which contains just a single patch bfa1ce5f38938cc9e6c7f2d1011f88eba2b9e2b2 ("bus: mvebu-mbus: add mv_mbus_dram_info_nooverlap()") that happens to be a prerequisite of the new marvell/cesa crypto driver.
Diffstat (limited to 'drivers/misc/sram.c')
-rw-r--r--drivers/misc/sram.c19
1 files changed, 15 insertions, 4 deletions
diff --git a/drivers/misc/sram.c b/drivers/misc/sram.c
index 21181fa243df..eeaaf5fca105 100644
--- a/drivers/misc/sram.c
+++ b/drivers/misc/sram.c
@@ -69,12 +69,23 @@ static int sram_probe(struct platform_device *pdev)
INIT_LIST_HEAD(&reserve_list);
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- virt_base = devm_ioremap_resource(&pdev->dev, res);
- if (IS_ERR(virt_base))
- return PTR_ERR(virt_base);
+ if (!res) {
+ dev_err(&pdev->dev, "found no memory resource\n");
+ return -EINVAL;
+ }
size = resource_size(res);
+ if (!devm_request_mem_region(&pdev->dev,
+ res->start, size, pdev->name)) {
+ dev_err(&pdev->dev, "could not request region for resource\n");
+ return -EBUSY;
+ }
+
+ virt_base = devm_ioremap_wc(&pdev->dev, res->start, size);
+ if (IS_ERR(virt_base))
+ return PTR_ERR(virt_base);
+
sram = devm_kzalloc(&pdev->dev, sizeof(*sram), GFP_KERNEL);
if (!sram)
return -ENOMEM;
@@ -205,7 +216,7 @@ static int sram_remove(struct platform_device *pdev)
}
#ifdef CONFIG_OF
-static struct of_device_id sram_dt_ids[] = {
+static const struct of_device_id sram_dt_ids[] = {
{ .compatible = "mmio-sram" },
{}
};