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

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Message-ID: <296c2403-9ba3-f070-c939-ec845c7410a1@redhat.com>
Date:   Mon, 6 Feb 2023 15:13:21 +0100
From:   Hans de Goede <hdegoede@...hat.com>
To:     Armin Wolf <W_Armin@....de>, 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: Re: [PATCH 2/2] platform/x86: dell-ddv: Prefer asynchronous probing

Hi,

On 2/5/23 21:54, Armin Wolf wrote:
> 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>

Thanks, patch looks good to me:

Reviewed-by: Hans de Goede <hdegoede@...hat.com>

Regards,

Hans


> ---
>  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
>