On 05/26/2017 04:08 AM, Heikki Krogerus wrote:
Hi,
On Thu, May 25, 2017 at 06:23:30AM -0700, Guenter Roeck wrote:
+ /*
+ * NOTE: The memory region for the data structures is used also in an
+ * operation region, which means ACPI has already reserved it. Therefore
+ * it can not be requested here.
+ */
+ ua->ppm.data = devm_ioremap(&pdev->dev, res->start, resource_size(res));
devm_ioremap_resource() ?
devm_ioremap_resource() will try to request the region, and like I
tried to explain in the comment, it will fail as the region has
already been reserved by ACPI.
Maybe add this to the comment above ?
.. it can not be requested here, and we can not use devm_ioremap_resource().
Thanks,
Guenter
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