linux-kernel - Re: [PATCH v2 5/9] platform/x86: asus-wmi: store a min default for ppt options

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Date: Wed, 03 Apr 2024 13:09:59 +1300
From: Luke Jones <luke@...nes.dev>
To: Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
Cc: Hans de Goede <hdegoede@...hat.com>, corentin.chary@...il.com,
 platform-driver-x86@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>
Subject:
 Re: [PATCH v2 5/9] platform/x86: asus-wmi: store a min default for ppt
 options

On Tuesday, 2 April 2024 11:49:50 PM NZDT Ilpo Järvinen wrote:
> On Tue, 2 Apr 2024, Luke D. Jones wrote:
> > Laptops with any of the ppt or nv tunables default to the minimum setting
> > on boot so we can safely assume a stored value is correct.
> > 
> > This patch adds storing of those values in the local struct, and enables
> > reading of those values back. To prevent creating a series of byte holes
> > in the struct the "<name>_available" bool is removed and
> > `asus_sysfs_is_visible()` uses the `ASUS_WMI_DEVID_<name>` directly.
> > 
> > Signed-off-by: Luke D. Jones <luke@...nes.dev>
> > ---
> > 
> >  drivers/platform/x86/asus-wmi.c | 127 +++++++++++++++++++++++++-------
> >  1 file changed, 99 insertions(+), 28 deletions(-)
> > 
> > diff --git a/drivers/platform/x86/asus-wmi.c
> > b/drivers/platform/x86/asus-wmi.c index b795f9c1941f..c80afa385532 100644
> > --- a/drivers/platform/x86/asus-wmi.c
> > +++ b/drivers/platform/x86/asus-wmi.c
> > @@ -262,13 +262,13 @@ struct asus_wmi {
> > 
> >  	u32 gpu_mux_dev;
> >  	
> >  	/* Tunables provided by ASUS for gaming laptops */
> > 
> > -	bool ppt_pl2_sppt_available;
> > -	bool ppt_pl1_spl_available;
> > -	bool ppt_apu_sppt_available;
> > -	bool ppt_plat_sppt_available;
> > -	bool ppt_fppt_available;
> > -	bool nv_dyn_boost_available;
> > -	bool nv_temp_tgt_available;
> > +	u32 ppt_pl2_sppt;
> > +	u32 ppt_pl1_spl;
> > +	u32 ppt_apu_sppt;
> > +	u32 ppt_platform_sppt;
> > +	u32 ppt_fppt;
> > +	u32 nv_dynamic_boost;
> > +	u32 nv_temp_target;
> > 
> >  	u32 kbd_rgb_dev;
> >  	bool kbd_rgb_state_available;
> > 
> > @@ -1020,11 +1020,21 @@ static ssize_t ppt_pl2_sppt_store(struct device
> > *dev,> 
> >  		return -EIO;
> >  	
> >  	}
> > 
> > +	asus->ppt_pl2_sppt = value;
> > 
> >  	sysfs_notify(&asus->platform_device->dev.kobj, NULL, 
"ppt_pl2_sppt");
> >  	
> >  	return count;
> >  
> >  }
> > 
> > -static DEVICE_ATTR_WO(ppt_pl2_sppt);
> > +
> > +static ssize_t ppt_pl2_sppt_show(struct device *dev,
> > +				       struct device_attribute 
*attr,
> > +				       char *buf)
> > +{
> > +	struct asus_wmi *asus = dev_get_drvdata(dev);
> > +
> > +	return sysfs_emit(buf, "%d\n", asus->ppt_pl2_sppt);
> 
> Use %u for u32 values. This applies to all sysfs_emits in this patch.

Thought checkpatch or the compiler would catch that. Done.

I've added your reviewed tag due to the simplicity of the change requested. I 
hope this was okay.