linux-kernel - [PATCH 2/2] platform/x86: dell-ddv: Prefer asynchronous probing

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Message-Id: <20230205205456.2364-3-W_Armin@gmx.de>
Date:   Sun,  5 Feb 2023 21:54:56 +0100
From:   Armin Wolf <W_Armin@....de>
To:     hdegoede@...hat.com, markgross@...nel.org
Cc:     jdelvare@...e.com, linux@...ck-us.net,
        platform-driver-x86@...r.kernel.org, linux-hwmon@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH 2/2] platform/x86: dell-ddv: Prefer asynchronous probing

During probe, both sensor buffers need to be queried to
initialize the hwmon channels. This might be slow on some
machines, causing a unnecessary delay during boot.
Mark the driver with PROBE_PREFER_ASYNCHRONOUS so that it
can be probed asynchronously.

Signed-off-by: Armin Wolf <W_Armin@....de>
---
 drivers/platform/x86/dell/dell-wmi-ddv.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/platform/x86/dell/dell-wmi-ddv.c b/drivers/platform/x86/dell/dell-wmi-ddv.c
index b7ac483eff12..cffbba5e2d9a 100644
--- a/drivers/platform/x86/dell/dell-wmi-ddv.c
+++ b/drivers/platform/x86/dell/dell-wmi-ddv.c
@@ -10,6 +10,7 @@
 #include <linux/acpi.h>
 #include <linux/debugfs.h>
 #include <linux/device.h>
+#include <linux/device/driver.h>
 #include <linux/dev_printk.h>
 #include <linux/errno.h>
 #include <linux/kconfig.h>
@@ -872,6 +873,7 @@ MODULE_DEVICE_TABLE(wmi, dell_wmi_ddv_id_table);
 static struct wmi_driver dell_wmi_ddv_driver = {
 	.driver = {
 		.name = DRIVER_NAME,
+		.probe_type = PROBE_PREFER_ASYNCHRONOUS,
 	},
 	.id_table = dell_wmi_ddv_id_table,
 	.probe = dell_wmi_ddv_probe,
--
2.30.2