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USB: ehci-platform: Add ACPI bindings for the EHCI platform driver. 

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.huang@arm.com>
Reviewed-by: Graeme Gregory <graeme.gregory@linaro.org>
Reviewed-by: Hanjun Guo <hanjun.guo@linaro.org>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Jeremy Linton <jeremy.linton@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jeremy Linton 2015-08-19 16:36:32 -05:00 committed by Greg Kroah-Hartman
parent 17f69b5fa6
commit 776c15d0ad
1 changed files with 8 additions and 0 deletions
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8
drivers/usb/host/ehci-platform.c
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@ -19,6 +19,7 @@
* *
* Licensed under the GNU/GPL. See COPYING for details. * Licensed under the GNU/GPL. See COPYING for details.
*/ */
#include <linux/acpi.h>
#include <linux/clk.h> #include <linux/clk.h>
#include <linux/dma-mapping.h> #include <linux/dma-mapping.h>
#include <linux/err.h> #include <linux/err.h>
@ -387,6 +388,12 @@ static const struct of_device_id vt8500_ehci_ids[] = {
}; };
MODULE_DEVICE_TABLE(of, 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[] = { static const struct platform_device_id ehci_platform_table[] = {
{ "ehci-platform", 0 }, { "ehci-platform", 0 },
{ } { }
@ -405,6 +412,7 @@ static struct platform_driver ehci_platform_driver = {
.name = "ehci-platform", .name = "ehci-platform",
.pm = &ehci_platform_pm_ops, .pm = &ehci_platform_pm_ops,
.of_match_table = vt8500_ehci_ids, .of_match_table = vt8500_ehci_ids,
.acpi_match_table = ACPI_PTR(ehci_acpi_match),
} }
}; };