From 38c4ab8e48ab153dee461e10e81256720b70a0b3 Mon Sep 17 00:00:00 2001
From: Graeme Gregory <graeme.gregory@linaro.org>
Date: Tue, 28 Jul 2015 10:44:02 +0100
Subject: virtio_mmio: add ACPI probing

Added the match table and pointers for ACPI probing to the driver.

This uses the same identifier for virt devices as being used for qemu
ARM64 ACPI support.

http://git.linaro.org/people/shannon.zhao/qemu.git/commit/d0bf1955a3ecbab4b51d46f8c5dda02b7e14a17e

Signed-off-by: Graeme Gregory <graeme.gregory@linaro.org>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---
 drivers/virtio/virtio_mmio.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'drivers/virtio')

diff --git a/drivers/virtio/virtio_mmio.c b/drivers/virtio/virtio_mmio.c
index 10189b5b627f..f499d9da7237 100644
--- a/drivers/virtio/virtio_mmio.c
+++ b/drivers/virtio/virtio_mmio.c
@@ -58,6 +58,7 @@
 
 #define pr_fmt(fmt) "virtio-mmio: " fmt
 
+#include <linux/acpi.h>
 #include <linux/highmem.h>
 #include <linux/interrupt.h>
 #include <linux/io.h>
@@ -732,12 +733,21 @@ static struct of_device_id virtio_mmio_match[] = {
 };
 MODULE_DEVICE_TABLE(of, virtio_mmio_match);
 
+#ifdef CONFIG_ACPI
+static const struct acpi_device_id virtio_mmio_acpi_match[] = {
+	{ "LNRO0005", },
+	{ }
+};
+MODULE_DEVICE_TABLE(acpi, virtio_mmio_acpi_match);
+#endif
+
 static struct platform_driver virtio_mmio_driver = {
 	.probe		= virtio_mmio_probe,
 	.remove		= virtio_mmio_remove,
 	.driver		= {
 		.name	= "virtio-mmio",
 		.of_match_table	= virtio_mmio_match,
+		.acpi_match_table = ACPI_PTR(virtio_mmio_acpi_match),
 	},
 };
 
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