[PATCH 2/2] [usb] add support for APM X-Gene to xhci-platform

Mark Langsdorf
2014-10-30T18:16:29Z

Applied Micro's X-Gene platform uses the xhci-platform for USB.
Add the glue to decode it from ACPI and change the Kconfig files
so the xhci-plat.o file gets built.

Signed-off-by: Mark Langsdorf <mlangsdo@redhat.com>
---
arch/arm64/Kconfig | 1 +
drivers/usb/host/Kconfig | 8 ++++++++
drivers/usb/host/xhci-plat.c | 11 +++++++++++
3 files changed, 20 insertions(+)

diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 042f785..07549ec 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -149,6 +149,7 @@ config ARCH_XGENE
bool "AppliedMicro X-Gene SOC Family"
select MFD_SYSCON
select POWER_RESET_SYSCON
+ select USB_XHCI_XGENE
help
This enables support for AppliedMicro X-Gene SOC Family

diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
index 82800a7..9fd52db 100644
--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
@@ -45,6 +45,14 @@ config USB_XHCI_RCAR
Say 'Y' to enable the support for the xHCI host controller
found in Renesas R-Car ARM SoCs.

+config USB_XHCI_XGENE
+ tristate "xHCI support for Applied Micro X-Gene SoCs"
+ select USB_XHCI_PLATFORM
+ depends on ARCH_XGENE || COMPILE_TEST
+ ---help---
+ Say 'Y' to enable the support for the xHCI host controller
+ found in Applied Micro X-Gene ARM SoCs.
+
endif # USB_XHCI_HCD

config USB_EHCI_HCD
diff --git a/drivers/usb/host/xhci-plat.c b/drivers/usb/host/xhci-plat.c
index 3045e77..5012c68 100644
--- a/drivers/usb/host/xhci-plat.c
+++ b/drivers/usb/host/xhci-plat.c
@@ -18,6 +18,7 @@
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <linux/usb/xhci_pdriver.h>
+#include <linux/acpi.h>

#include "xhci.h"
#include "xhci-mvebu.h"
@@ -290,6 +291,15 @@ static const struct of_device_id usb_xhci_of_match[] = {
MODULE_DEVICE_TABLE(of, usb_xhci_of_match);
#endif

+#ifdef CONFIG_ACPI
+static const struct acpi_device_id usb_xhci_acpi_match[] = {
+ /* APM X-Gene USB Controller */
+ { "PNP0D10", },
+ { }
+};
+MODULE_DEVICE_TABLE(acpi, usb_xhci_acpi_match);
+#endif
+
static struct platform_driver usb_xhci_driver = {
.probe = xhci_plat_probe,
.remove = xhci_plat_remove,
@@ -297,6 +307,7 @@ static struct platform_driver usb_xhci_driver = {
.name = "xhci-hcd",
.pm = DEV_PM_OPS,
.of_match_table = of_match_ptr(usb_xhci_of_match),
+ .acpi_match_table = ACPI_PTR(usb_xhci_acpi_match),
},
};
MODULE_ALIAS("platform:xhci-hcd");
--
1.9.3