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-rw-r--r--drivers/regulator/ti-abb-regulator.c22
1 files changed, 19 insertions, 3 deletions
diff --git a/drivers/regulator/ti-abb-regulator.c b/drivers/regulator/ti-abb-regulator.c
index 115345e9f..82af27b0e 100644
--- a/drivers/regulator/ti-abb-regulator.c
+++ b/drivers/regulator/ti-abb-regulator.c
@@ -734,9 +734,25 @@ static int ti_abb_probe(struct platform_device *pdev)
return PTR_ERR(abb->setup_reg);
}
- abb->int_base = devm_platform_ioremap_resource_byname(pdev, "int-address");
- if (IS_ERR(abb->int_base))
- return PTR_ERR(abb->int_base);
+ pname = "int-address";
+ res = platform_get_resource_byname(pdev, IORESOURCE_MEM, pname);
+ if (!res) {
+ dev_err(dev, "Missing '%s' IO resource\n", pname);
+ return -ENODEV;
+ }
+ /*
+ * The MPU interrupt status register (PRM_IRQSTATUS_MPU) is
+ * shared between regulator-abb-{ivahd,dspeve,gpu} driver
+ * instances. Therefore use devm_ioremap() rather than
+ * devm_platform_ioremap_resource_byname() to avoid busy
+ * resource region conflicts.
+ */
+ abb->int_base = devm_ioremap(dev, res->start,
+ resource_size(res));
+ if (!abb->int_base) {
+ dev_err(dev, "Unable to map '%s'\n", pname);
+ return -ENOMEM;
+ }
/* Map Optional resources */
pname = "efuse-address";