linux-kernel - [PATCH v2 1/1] platform/x86: xo15-ebook: Replace open coded acpi_match

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Message-Id: <20231006153152.3502912-1-andriy.shevchenko@linux.intel.com>
Date:   Fri,  6 Oct 2023 18:31:52 +0300
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        platform-driver-x86@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Hans de Goede <hdegoede@...hat.com>,
        Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>,
        Mark Gross <markgross@...nel.org>
Subject: [PATCH v2 1/1] platform/x86: xo15-ebook: Replace open coded acpi_match_device()

Replace open coded acpi_match_device() in ebook_switch_add().

Note, while it is a bit longer it is more robust in case
more IDs will be added.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
---
v2: fixed compilation error
 drivers/platform/x86/xo15-ebook.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/platform/x86/xo15-ebook.c b/drivers/platform/x86/xo15-ebook.c
index 391f7ea4431e..2ae8a58adcd0 100644
--- a/drivers/platform/x86/xo15-ebook.c
+++ b/drivers/platform/x86/xo15-ebook.c
@@ -81,9 +81,9 @@ static SIMPLE_DEV_PM_OPS(ebook_switch_pm, NULL, ebook_switch_resume);
 
 static int ebook_switch_add(struct acpi_device *device)
 {
+	const struct acpi_device_id *id;
 	struct ebook_switch *button;
 	struct input_dev *input;
-	const char *hid = acpi_device_hid(device);
 	char *name, *class;
 	int error;
 
@@ -102,8 +102,9 @@ static int ebook_switch_add(struct acpi_device *device)
 	name = acpi_device_name(device);
 	class = acpi_device_class(device);
 
-	if (strcmp(hid, XO15_EBOOK_HID)) {
-		pr_err("Unsupported hid [%s]\n", hid);
+	id = acpi_match_device(ebook_device_ids, device);
+	if (!id) {
+		dev_err(&device->dev, "Unsupported hid\n");
 		error = -ENODEV;
 		goto err_free_input;
 	}
@@ -111,7 +112,7 @@ static int ebook_switch_add(struct acpi_device *device)
 	strcpy(name, XO15_EBOOK_DEVICE_NAME);
 	sprintf(class, "%s/%s", XO15_EBOOK_CLASS, XO15_EBOOK_SUBCLASS);
 
-	snprintf(button->phys, sizeof(button->phys), "%s/button/input0", hid);
+	snprintf(button->phys, sizeof(button->phys), "%s/button/input0", id->id);
 
 	input->name = name;
 	input->phys = button->phys;
-- 
2.40.0.1.gaa8946217a0b