linux-kernel - Re: [PATCH v4 2/3] platform/x86: acer-wmi: add fan speed monitoring for Predator PHN16-71

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Date:   Mon, 27 Nov 2023 13:15:30 +0100
From:   Hans de Goede <hdegoede@...hat.com>
To:     SungHwan Jung <onenowy@...il.com>,
        Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>,
        "Lee, Chun-Yi" <jlee@...e.com>, Jean Delvare <jdelvare@...e.com>,
        Guenter Roeck <linux@...ck-us.net>
Cc:     platform-driver-x86@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-hwmon@...r.kernel.org
Subject: Re: [PATCH v4 2/3] platform/x86: acer-wmi: add fan speed monitoring
 for Predator PHN16-71

Hi,

Thank you for your patch.

On 11/24/23 10:41, SungHwan Jung wrote:
> Support CPU and GPU fan speed monitoring through WMI for Predator
> PHN16-71.
> 
> This patch depends on patch "platform/x86: acer-wmi: Add platform
> profile and mode key support for Predator PHN16-71"
> 
> Signed-off-by: SungHwan Jung <onenowy@...il.com>
> ---
>  drivers/platform/x86/Kconfig    |   1 +
>  drivers/platform/x86/acer-wmi.c | 104 +++++++++++++++++++++++++++++++-
>  2 files changed, 103 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig
> index 7e69fdacc..caf3f4c6b 100644
> --- a/drivers/platform/x86/Kconfig
> +++ b/drivers/platform/x86/Kconfig

<snip>

> @@ -2505,6 +2535,9 @@ static int acer_platform_probe(struct platform_device *device)
>  			goto error_platform_profile;
>  	}
>  
> +	if (has_cap(ACER_CAP_FAN_SPEED_READ))
> +		err = acer_wmi_hwmon_init();
> +
>  	return err;
>  
>  error_rfkill:
This has the same error-handling problem as patch 1/3. I have fixed
this up in the same manner while merging this, resulting in:

        if (has_cap(ACER_CAP_PLATFORM_PROFILE)) {
                err = acer_platform_profile_setup();
                if (err)
                        goto error_platform_profile;
        }

        if (has_cap(ACER_CAP_FAN_SPEED_READ)) {
                err = acer_wmi_hwmon_init();
                if (err)
                        goto error_hwmon;
        }

        return 0;

error_hwmon:
        if (platform_profile_support)
                platform_profile_remove();
error_platform_profile:
        acer_rfkill_exit();
error_rfkill:
        if (has_cap(ACER_CAP_BRIGHTNESS))
                acer_backlight_exit();

	...

Thank you for your patch, I've applied this patch to my review-hans 
branch:
https://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86.git/log/?h=review-hans

Note it will show up in my review-hans branch once I've pushed my
local branch there, which might take a while.

Once I've run some tests on this branch the patches there will be
added to the platform-drivers-x86/for-next branch and eventually
will be included in the pdx86 pull-request to Linus for the next
merge-window.

Regards,

Hans