This enables USB on the ARM juno board when booted with
an ACPI kernel. The PNP id comes from the PNP/ACPI registry
and describes an EHCI controller without debug.
Tested-by: Huang Shijie <shijie.hu...@arm.com>
Reviewed-by: Graeme Gregory <graeme.greg...@linaro.org>
Reviewed-by: Hanjun Guo <hanjun....@linaro.org>
Acked-by: Alan Stern <st...@rowland.harvard.edu>
Signed-off-by: Jeremy Linton <jeremy.lin...@arm.com>
---
drivers/usb/host/ehci-platform.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/usb/host/ehci-platform.c b/drivers/usb/host/ehci-platform.c
index 3ce38c3..9680a5d 100644
--- a/drivers/usb/host/ehci-platform.c
+++ b/drivers/usb/host/ehci-platform.c
@@ -19,6 +19,7 @@
*
* Licensed under the GNU/GPL. See COPYING for details.
*/
+#include <linux/acpi.h>
#include <linux/clk.h>
#include <linux/dma-mapping.h>
#include <linux/err.h>
@@ -382,6 +383,12 @@ static const struct of_device_id vt8500_ehci_ids[] = {
};
MODULE_DEVICE_TABLE(of, vt8500_ehci_ids);
+static const struct acpi_device_id ehci_acpi_match[] = {
+ { "PNP0D20", 0 }, /* EHCI controller without debug */
+ { }
+};
+MODULE_DEVICE_TABLE(acpi, ehci_acpi_match);
+
static const struct platform_device_id ehci_platform_table[] = {
{ "ehci-platform", 0 },
{ }
@@ -400,6 +407,7 @@ static struct platform_driver ehci_platform_driver = {
.name = "ehci-platform",
.pm = &ehci_platform_pm_ops,
.of_match_table = vt8500_ehci_ids,
+ .acpi_match_table = ACPI_PTR(ehci_acpi_match),
}
};
--
2.4.3
--
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