linux-kernel - [PATCH v1 6/8] platform/x86: surface3_wmi: Switch DMI table match to a test of variable

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Date:   Fri, 17 Jan 2020 19:56:24 +0200
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        "H. Peter Anvin" <hpa@...or.com>, x86@...nel.org,
        Alessandro Zummo <a.zummo@...ertech.it>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        linux-rtc@...r.kernel.org,
        "Guilherme G . Piccoli" <gpiccoli@...onical.com>,
        linux-kernel@...r.kernel.org
Cc:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Subject: [PATCH v1 6/8] platform/x86: surface3_wmi: Switch DMI table match to a test of variable

Since we have a common x86 quirk that provides an exported variable,
use it instead of local DMI table match.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
---
 drivers/platform/x86/surface3-wmi.c | 16 ++--------------
 1 file changed, 2 insertions(+), 14 deletions(-)

diff --git a/drivers/platform/x86/surface3-wmi.c b/drivers/platform/x86/surface3-wmi.c
index 130b6f52a600..5eeedc4ddb8a 100644
--- a/drivers/platform/x86/surface3-wmi.c
+++ b/drivers/platform/x86/surface3-wmi.c
@@ -11,9 +11,9 @@
 #include <linux/slab.h>
 
 #include <linux/acpi.h>
-#include <linux/dmi.h>
 #include <linux/input.h>
 #include <linux/mutex.h>
+#include <linux/platform_data/x86/machine.h>
 #include <linux/platform_device.h>
 #include <linux/spi/spi.h>
 
@@ -29,18 +29,6 @@ MODULE_LICENSE("GPL");
 
 MODULE_ALIAS("wmi:" SURFACE3_LID_GUID);
 
-static const struct dmi_system_id surface3_dmi_table[] = {
-#if defined(CONFIG_X86)
-	{
-		.matches = {
-			DMI_MATCH(DMI_SYS_VENDOR, "Microsoft Corporation"),
-			DMI_MATCH(DMI_PRODUCT_NAME, "Surface 3"),
-		},
-	},
-#endif
-	{ }
-};
-
 struct surface3_wmi {
 	struct acpi_device *touchscreen_adev;
 	struct acpi_device *pnp0c0d_adev;
@@ -201,7 +189,7 @@ static int __init s3_wmi_probe(struct platform_device *pdev)
 {
 	int error;
 
-	if (!dmi_check_system(surface3_dmi_table))
+	if (!x86_microsoft_surface_3_machine)
 		return -ENODEV;
 
 	memset(&s3_wmi, 0, sizeof(s3_wmi));
-- 
2.24.1