[PATCH 0/9] asus-wmi: add new features, clean up, fixes

[PATCH 0/9] asus-wmi: add new features, clean up, fixes

[Luke D. Jones]

This patch series touches quite a few things along with adding support for some
new features.

- Add support for mini-LED on 2024 ROG lpatops
- Add support for the gpu MUX WMI call on Vivobook laptops
- Add support for the POST boot sound on ROG laptops
- Add support for MCU power-save (ROG Ally only, saves more power on suspend)
- Store written values for ppt_* features
- Small formatting cleanup
- Small fixes to cleanup struct holes found with pahole

Obsoletes:
- https://lore.kernel.org/all/20240320011442.11608-1-luke@ljones.dev/
- https://lore.kernel.org/all/20240310065408.63703-1-luke@ljones.dev/
- https://lore.kernel.org/all/20240310061715.16531-1-luke@ljones.dev/
- https://lore.kernel.org/all/20240310055312.11293-1-luke@ljones.dev/
- https://lore.kernel.org/all/20240310233722.30884-1-luke@ljones.dev/

Luke D. Jones (9):
  platform/x86: asus-wmi: add support for 2024 ROG Mini-LED
  platform/x86: asus-wmi: add support for Vivobook GPU MUX
  platform/x86: asus-wmi: add support variant of TUF RGB
  platform/x86: asus-wmi: support toggling POST sound
  platform/x86: asus-wmi: store a min default for ppt options
  platform/x86: asus-wmi: adjust formatting of ppt-<name>() functions
  platform/x86: asus-wmi: ROG Ally increase wait time, allow MCU
    powersave
  platform/x86: asus-wmi: Add support for MCU powersave
  platform/x86: asus-wmi: cleanup main struct to avoid some holes

 .../ABI/testing/sysfs-platform-asus-wmi       |  26 ++
 drivers/platform/x86/asus-wmi.c               | 386 ++++++++++++++----
 include/linux/platform_data/x86/asus-wmi.h    |   6 +
 3 files changed, 339 insertions(+), 79 deletions(-)

-- 
2.44.0

[PATCH 1/9] platform/x86: asus-wmi: add support for 2024 ROG Mini-LED

[Luke D. Jones]

Support the 2024 mini-led backlight and adjust the related functions
to select the relevant dev-id. Also add `available_mini_led_mode` to the
platform sysfs since the available mini-led levels can be different.

Signed-off-by: Luke D. Jones <luke@ljones.dev>
---
 .../ABI/testing/sysfs-platform-asus-wmi       |  8 ++
 drivers/platform/x86/asus-wmi.c               | 74 +++++++++++++++++--
 include/linux/platform_data/x86/asus-wmi.h    |  1 +
 3 files changed, 76 insertions(+), 7 deletions(-)

diff --git a/Documentation/ABI/testing/sysfs-platform-asus-wmi b/Documentation/ABI/testing/sysfs-platform-asus-wmi
index 8a7e25bde085..61a745d2476f 100644
--- a/Documentation/ABI/testing/sysfs-platform-asus-wmi
+++ b/Documentation/ABI/testing/sysfs-platform-asus-wmi
@@ -126,6 +126,14 @@ Description:
 		Change the mini-LED mode:
 			* 0 - Single-zone,
 			* 1 - Multi-zone
+			* 2 - Multi-zone strong (available on newer generation mini-led)
+
+What:		/sys/devices/platform/<platform>/available_mini_led_mode
+Date:		Jun 2023
+KernelVersion:	6.10
+Contact:	"Luke Jones" <luke@ljones.dev>
+Description:
+		List the available mini-led modes.
 
 What:		/sys/devices/platform/<platform>/ppt_pl1_spl
 Date:		Jun 2023
diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c
index 18be35fdb381..54ce0fb26f42 100644
--- a/drivers/platform/x86/asus-wmi.c
+++ b/drivers/platform/x86/asus-wmi.c
@@ -297,6 +297,7 @@ struct asus_wmi {
 
 	bool panel_overdrive_available;
 	bool mini_led_mode_available;
+	u32 mini_led_dev_id;
 
 	struct hotplug_slot hotplug_slot;
 	struct mutex hotplug_lock;
@@ -2109,10 +2110,27 @@ static ssize_t mini_led_mode_show(struct device *dev,
 	struct asus_wmi *asus = dev_get_drvdata(dev);
 	int result;
 
-	result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_MINI_LED_MODE);
-	if (result < 0)
-		return result;
+	result = asus_wmi_get_devstate_simple(asus, asus->mini_led_dev_id);
 
+	/* Remap the mode values to match previous generation mini-led.
+	 * Some BIOSes return -19 instead of 2, which is "mini-LED off", this
+	 * appears to be a  BIOS bug.
+	 */
+	if (asus->mini_led_dev_id == ASUS_WMI_DEVID_MINI_LED_MODE2) {
+		switch (result) {
+		case 0:
+			result = 1;
+			break;
+		case 1:
+			result = 2;
+			break;
+		case 2:
+		case -19:
+			result = 0;
+		}
+	} else if (result < 0) {
+		return result;
+	}
 	return sysfs_emit(buf, "%d\n", result);
 }
 
@@ -2129,11 +2147,28 @@ static ssize_t mini_led_mode_store(struct device *dev,
 	if (result)
 		return result;
 
-	if (mode > 1)
+	if (mode > 1 && asus->mini_led_dev_id == ASUS_WMI_DEVID_MINI_LED_MODE)
 		return -EINVAL;
+	if (mode > 2 && asus->mini_led_dev_id == ASUS_WMI_DEVID_MINI_LED_MODE2)
+		return -EINVAL;
+	/*
+	 * Remap the mode values so expected behaviour is the same as the last
+	 * generation of mini-LED
+	 */
+	if (asus->mini_led_dev_id == ASUS_WMI_DEVID_MINI_LED_MODE2) {
+		switch (mode) {
+		case 0:
+			mode = 2;
+			break;
+		case 1:
+			mode = 0;
+			break;
+		case 2:
+			mode = 1;
+		}
+	}
 
-	err = asus_wmi_set_devstate(ASUS_WMI_DEVID_MINI_LED_MODE, mode, &result);
-
+	err = asus_wmi_set_devstate(asus->mini_led_dev_id, mode, &result);
 	if (err) {
 		pr_warn("Failed to set mini-LED: %d\n", err);
 		return err;
@@ -2150,6 +2185,23 @@ static ssize_t mini_led_mode_store(struct device *dev,
 }
 static DEVICE_ATTR_RW(mini_led_mode);
 
+static ssize_t available_mini_led_mode_show(struct device *dev,
+				  struct device_attribute *attr, char *buf)
+{
+	struct asus_wmi *asus = dev_get_drvdata(dev);
+
+	switch (asus->mini_led_dev_id) {
+	case ASUS_WMI_DEVID_MINI_LED_MODE:
+		return sysfs_emit(buf, "0 1\n");
+	case ASUS_WMI_DEVID_MINI_LED_MODE2:
+		return sysfs_emit(buf, "0 1 2\n");
+	}
+
+	return sysfs_emit(buf, "0\n");
+}
+
+static DEVICE_ATTR_RO(available_mini_led_mode);
+
 /* Quirks *********************************************************************/
 
 static void asus_wmi_set_xusb2pr(struct asus_wmi *asus)
@@ -4174,6 +4226,7 @@ static struct attribute *platform_attributes[] = {
 	&dev_attr_nv_temp_target.attr,
 	&dev_attr_panel_od.attr,
 	&dev_attr_mini_led_mode.attr,
+	&dev_attr_available_mini_led_mode.attr,
 	NULL
 };
 
@@ -4496,10 +4549,17 @@ static int asus_wmi_add(struct platform_device *pdev)
 	asus->nv_dyn_boost_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_NV_DYN_BOOST);
 	asus->nv_temp_tgt_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_NV_THERM_TARGET);
 	asus->panel_overdrive_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_PANEL_OD);
-	asus->mini_led_mode_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_MINI_LED_MODE);
 	asus->ally_mcu_usb_switch = acpi_has_method(NULL, ASUS_USB0_PWR_EC0_CSEE)
 						&& dmi_match(DMI_BOARD_NAME, "RC71L");
 
+	if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_MINI_LED_MODE)) {
+		asus->mini_led_mode_available = true;
+		asus->mini_led_dev_id = ASUS_WMI_DEVID_MINI_LED_MODE;
+	} else if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_MINI_LED_MODE2)) {
+		asus->mini_led_mode_available = true;
+		asus->mini_led_dev_id = ASUS_WMI_DEVID_MINI_LED_MODE2;
+	}
+
 	err = fan_boost_mode_check_present(asus);
 	if (err)
 		goto fail_fan_boost_mode;
diff --git a/include/linux/platform_data/x86/asus-wmi.h b/include/linux/platform_data/x86/asus-wmi.h
index ab1c7deff118..9cadce10ad9a 100644
--- a/include/linux/platform_data/x86/asus-wmi.h
+++ b/include/linux/platform_data/x86/asus-wmi.h
@@ -71,6 +71,7 @@
 #define ASUS_WMI_DEVID_LID_FLIP		0x00060062
 #define ASUS_WMI_DEVID_LID_FLIP_ROG	0x00060077
 #define ASUS_WMI_DEVID_MINI_LED_MODE	0x0005001E
+#define ASUS_WMI_DEVID_MINI_LED_MODE2	0x0005002E
 
 /* Storage */
 #define ASUS_WMI_DEVID_CARDREADER	0x00080013
-- 
2.44.0

Re: [PATCH 1/9] platform/x86: asus-wmi: add support for 2024 ROG Mini-LED

[Ilpo Järvinen]

On Mon, 25 Mar 2024, Luke D. Jones wrote:

> Support the 2024 mini-led backlight and adjust the related functions
> to select the relevant dev-id. Also add `available_mini_led_mode` to the
> platform sysfs since the available mini-led levels can be different.
> 
> Signed-off-by: Luke D. Jones <luke@ljones.dev>
> ---
>  .../ABI/testing/sysfs-platform-asus-wmi       |  8 ++
>  drivers/platform/x86/asus-wmi.c               | 74 +++++++++++++++++--
>  include/linux/platform_data/x86/asus-wmi.h    |  1 +
>  3 files changed, 76 insertions(+), 7 deletions(-)
> 
> diff --git a/Documentation/ABI/testing/sysfs-platform-asus-wmi b/Documentation/ABI/testing/sysfs-platform-asus-wmi
> index 8a7e25bde085..61a745d2476f 100644
> --- a/Documentation/ABI/testing/sysfs-platform-asus-wmi
> +++ b/Documentation/ABI/testing/sysfs-platform-asus-wmi
> @@ -126,6 +126,14 @@ Description:
>  		Change the mini-LED mode:
>  			* 0 - Single-zone,
>  			* 1 - Multi-zone
> +			* 2 - Multi-zone strong (available on newer generation mini-led)
> +
> +What:		/sys/devices/platform/<platform>/available_mini_led_mode
> +Date:		Jun 2023
> +KernelVersion:	6.10
> +Contact:	"Luke Jones" <luke@ljones.dev>
> +Description:
> +		List the available mini-led modes.
>  
>  What:		/sys/devices/platform/<platform>/ppt_pl1_spl
>  Date:		Jun 2023
> diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c
> index 18be35fdb381..54ce0fb26f42 100644
> --- a/drivers/platform/x86/asus-wmi.c
> +++ b/drivers/platform/x86/asus-wmi.c
> @@ -297,6 +297,7 @@ struct asus_wmi {
>  
>  	bool panel_overdrive_available;
>  	bool mini_led_mode_available;
> +	u32 mini_led_dev_id;
>  
>  	struct hotplug_slot hotplug_slot;
>  	struct mutex hotplug_lock;
> @@ -2109,10 +2110,27 @@ static ssize_t mini_led_mode_show(struct device *dev,
>  	struct asus_wmi *asus = dev_get_drvdata(dev);
>  	int result;
>  
> -	result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_MINI_LED_MODE);
> -	if (result < 0)
> -		return result;
> +	result = asus_wmi_get_devstate_simple(asus, asus->mini_led_dev_id);
>  
> +	/* Remap the mode values to match previous generation mini-led.
> +	 * Some BIOSes return -19 instead of 2, which is "mini-LED off", this
> +	 * appears to be a  BIOS bug.
> +	 */
> +	if (asus->mini_led_dev_id == ASUS_WMI_DEVID_MINI_LED_MODE2) {
> +		switch (result) {
> +		case 0:
> +			result = 1;
> +			break;
> +		case 1:
> +			result = 2;
> +			break;
> +		case 2:
> +		case -19:

Can you confirm this -19 really does come from BIOS? Because I suspect 
it's -ENODEV error code from from one of the functions on the driver side
(which is why I asked you to change it into -ENODEV).


-- 
 i.

Re: [PATCH 1/9] platform/x86: asus-wmi: add support for 2024 ROG Mini-LED

[Luke Jones]

On Tue, 26 Mar 2024, at 2:47 AM, Ilpo Järvinen wrote:
> On Mon, 25 Mar 2024, Luke D. Jones wrote:
> 
> > Support the 2024 mini-led backlight and adjust the related functions
> > to select the relevant dev-id. Also add `available_mini_led_mode` to the
> > platform sysfs since the available mini-led levels can be different.
> > 
> > Signed-off-by: Luke D. Jones <luke@ljones.dev>
> > ---
> >  .../ABI/testing/sysfs-platform-asus-wmi       |  8 ++
> >  drivers/platform/x86/asus-wmi.c               | 74 +++++++++++++++++--
> >  include/linux/platform_data/x86/asus-wmi.h    |  1 +
> >  3 files changed, 76 insertions(+), 7 deletions(-)
> > 
> > diff --git a/Documentation/ABI/testing/sysfs-platform-asus-wmi b/Documentation/ABI/testing/sysfs-platform-asus-wmi
> > index 8a7e25bde085..61a745d2476f 100644
> > --- a/Documentation/ABI/testing/sysfs-platform-asus-wmi
> > +++ b/Documentation/ABI/testing/sysfs-platform-asus-wmi
> > @@ -126,6 +126,14 @@ Description:
> >  Change the mini-LED mode:
> >  * 0 - Single-zone,
> >  * 1 - Multi-zone
> > + * 2 - Multi-zone strong (available on newer generation mini-led)
> > +
> > +What: /sys/devices/platform/<platform>/available_mini_led_mode
> > +Date: Jun 2023
> > +KernelVersion: 6.10
> > +Contact: "Luke Jones" <luke@ljones.dev>
> > +Description:
> > + List the available mini-led modes.
> >  
> >  What: /sys/devices/platform/<platform>/ppt_pl1_spl
> >  Date: Jun 2023
> > diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c
> > index 18be35fdb381..54ce0fb26f42 100644
> > --- a/drivers/platform/x86/asus-wmi.c
> > +++ b/drivers/platform/x86/asus-wmi.c
> > @@ -297,6 +297,7 @@ struct asus_wmi {
> >  
> >  bool panel_overdrive_available;
> >  bool mini_led_mode_available;
> > + u32 mini_led_dev_id;
> >  
> >  struct hotplug_slot hotplug_slot;
> >  struct mutex hotplug_lock;
> > @@ -2109,10 +2110,27 @@ static ssize_t mini_led_mode_show(struct device *dev,
> >  struct asus_wmi *asus = dev_get_drvdata(dev);
> >  int result;
> >  
> > - result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_MINI_LED_MODE);
> > - if (result < 0)
> > - return result;
> > + result = asus_wmi_get_devstate_simple(asus, asus->mini_led_dev_id);
> >  
> > + /* Remap the mode values to match previous generation mini-led.
> > + * Some BIOSes return -19 instead of 2, which is "mini-LED off", this
> > + * appears to be a  BIOS bug.
> > + */
> > + if (asus->mini_led_dev_id == ASUS_WMI_DEVID_MINI_LED_MODE2) {
> > + switch (result) {
> > + case 0:
> > + result = 1;
> > + break;
> > + case 1:
> > + result = 2;
> > + break;
> > + case 2:
> > + case -19:
> 
> Can you confirm this -19 really does come from BIOS? Because I suspect 
> it's -ENODEV error code from from one of the functions on the driver side
> (which is why I asked you to change it into -ENODEV).

Yes it does. It is rather annoying. What happens in this case is that `2` is written to the WMI endpoint to turn off the MINI-Led feature, this works fine and it is turned off, there are no errors from the write at all - verifying the accepted limits in dsdt also shows it is correct.

However, after that, the read fails once. And only if that `2` was written. `0` and `1` write fine, and read fine also. I hope I've managed to describe and clarify what I'm seeing here.

I'm happy to change -ENODEV. No problem, queued on my todo list.

Cheers,
Luke.

Re: [PATCH 1/9] platform/x86: asus-wmi: add support for 2024 ROG Mini-LED

[Ilpo Järvinen]

[-- Attachment #1: Type: text/plain, Size: 2993 bytes --]

On Tue, 26 Mar 2024, Luke Jones wrote:
> On Tue, 26 Mar 2024, at 2:47 AM, Ilpo Järvinen wrote:
> > On Mon, 25 Mar 2024, Luke D. Jones wrote:
> > 
> > > Support the 2024 mini-led backlight and adjust the related functions
> > > to select the relevant dev-id. Also add `available_mini_led_mode` to the
> > > platform sysfs since the available mini-led levels can be different.
> > > 
> > > Signed-off-by: Luke D. Jones <luke@ljones.dev>
> > > ---

> > > @@ -2109,10 +2110,27 @@ static ssize_t mini_led_mode_show(struct device *dev,
> > >  struct asus_wmi *asus = dev_get_drvdata(dev);
> > >  int result;
> > >  
> > > - result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_MINI_LED_MODE);
> > > - if (result < 0)
> > > - return result;
> > > + result = asus_wmi_get_devstate_simple(asus, asus->mini_led_dev_id);
> > >  
> > > + /* Remap the mode values to match previous generation mini-led.
> > > + * Some BIOSes return -19 instead of 2, which is "mini-LED off", this
> > > + * appears to be a  BIOS bug.
> > > + */
> > > + if (asus->mini_led_dev_id == ASUS_WMI_DEVID_MINI_LED_MODE2) {
> > > + switch (result) {
> > > + case 0:
> > > + result = 1;
> > > + break;
> > > + case 1:
> > > + result = 2;
> > > + break;
> > > + case 2:
> > > + case -19:
> > 
> > Can you confirm this -19 really does come from BIOS? Because I suspect 
> > it's -ENODEV error code from from one of the functions on the driver side
> > (which is why I asked you to change it into -ENODEV).
> 
> Yes it does. It is rather annoying. What happens in this case is that 
> `2` is written to the WMI endpoint to turn off the MINI-Led feature, 
> this works fine and it is turned off, there are no errors from the write 
> at all - verifying the accepted limits in dsdt also shows it is correct. 
> 
> However, after that, the read fails once.

Hi,

I'm left a bit unsure how to interpret your response. If "read fails", it 
would indicate that -ENODEV originates from asus_wmi_evaluate_method3(), 
asus_wmi_get_devstate() or asus_wmi_get_devstate_bits(), not from BIOS? So 
which way it is?

After reading some more code, I think I figured out the answer myself.
However, that raises another question... So lets now take a step back and 
walk through the code:

Your patch does:
	result = asus_wmi_get_devstate_simple(asus, asus->mini_led_dev_id);

asus_wmi_get_devstate_simple() calls asus_wmi_get_devstate_bits() with
ASUS_WMI_DSTS_STATUS_BIT mask that is 0x00000001.

If there's no error, retval is masked with that ASUS_WMI_DSTS_STATUS_BIT 
forcing the return value to 0-1 range so:

a) I don't think -19 can originate from BIOS but comes from kernel side.
b) How can it ever return 2 (mini-LED off) ?????

> And only if that `2` was 
> written. `0` and `1` write fine, and read fine also. I hope I've managed 
> to describe and clarify what I'm seeing here.
> 
> I'm happy to change -ENODEV. No problem, queued on my todo list.


-- 
 i.

Re: [PATCH 1/9] platform/x86: asus-wmi: add support for 2024 ROG Mini-LED

[Luke Jones]

On Wed, 27 Mar 2024, at 12:49 AM, Ilpo Järvinen wrote:
> On Tue, 26 Mar 2024, Luke Jones wrote:
> > On Tue, 26 Mar 2024, at 2:47 AM, Ilpo Järvinen wrote:
> > > On Mon, 25 Mar 2024, Luke D. Jones wrote:
> > > 
> > > > Support the 2024 mini-led backlight and adjust the related functions
> > > > to select the relevant dev-id. Also add `available_mini_led_mode` to the
> > > > platform sysfs since the available mini-led levels can be different.
> > > > 
> > > > Signed-off-by: Luke D. Jones <luke@ljones.dev>
> > > > ---
> 
> > > > @@ -2109,10 +2110,27 @@ static ssize_t mini_led_mode_show(struct device *dev,
> > > >  struct asus_wmi *asus = dev_get_drvdata(dev);
> > > >  int result;
> > > >  
> > > > - result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_MINI_LED_MODE);
> > > > - if (result < 0)
> > > > - return result;
> > > > + result = asus_wmi_get_devstate_simple(asus, asus->mini_led_dev_id);
> > > >  
> > > > + /* Remap the mode values to match previous generation mini-led.
> > > > + * Some BIOSes return -19 instead of 2, which is "mini-LED off", this
> > > > + * appears to be a  BIOS bug.
> > > > + */
> > > > + if (asus->mini_led_dev_id == ASUS_WMI_DEVID_MINI_LED_MODE2) {
> > > > + switch (result) {
> > > > + case 0:
> > > > + result = 1;
> > > > + break;
> > > > + case 1:
> > > > + result = 2;
> > > > + break;
> > > > + case 2:
> > > > + case -19:
> > > 
> > > Can you confirm this -19 really does come from BIOS? Because I suspect 
> > > it's -ENODEV error code from from one of the functions on the driver side
> > > (which is why I asked you to change it into -ENODEV).
> > 
> > Yes it does. It is rather annoying. What happens in this case is that 
> > `2` is written to the WMI endpoint to turn off the MINI-Led feature, 
> > this works fine and it is turned off, there are no errors from the write 
> > at all - verifying the accepted limits in dsdt also shows it is correct. 
> > 
> > However, after that, the read fails once.
> 
> Hi,
> 
> I'm left a bit unsure how to interpret your response. If "read fails", it 
> would indicate that -ENODEV originates from asus_wmi_evaluate_method3(), 
> asus_wmi_get_devstate() or asus_wmi_get_devstate_bits(), not from BIOS? So 
> which way it is?
> 
> After reading some more code, I think I figured out the answer myself.
> However, that raises another question... So lets now take a step back and 
> walk through the code:
> 
> Your patch does:
> result = asus_wmi_get_devstate_simple(asus, asus->mini_led_dev_id);
> 
> asus_wmi_get_devstate_simple() calls asus_wmi_get_devstate_bits() with
> ASUS_WMI_DSTS_STATUS_BIT mask that is 0x00000001.
> 
> If there's no error, retval is masked with that ASUS_WMI_DSTS_STATUS_BIT 
> forcing the return value to 0-1 range so:
> 
> a) I don't think -19 can originate from BIOS but comes from kernel side.
> b) How can it ever return 2 (mini-LED off) ?????

You're right. *facepalm* *grumble*. Honestly if I were getting paid for this work I'd invest a bit more time in it and catch these silly little things myself.

I'll update the code with all feedback, including using a more appropriate WMI function whcih I really should have seen on my own.

Thank you for your time so far.

[PATCH 2/9] platform/x86: asus-wmi: add support for Vivobook GPU MUX

[Luke D. Jones]

Add support for the Vivobook dgpu MUX available on the ASUS Viviobook
and some of the other ranges (Zen).

This MUX functions exactly the same as the existing ROG MUX support so
the existing functionality now detects which MUX is available and uses
that for control.

Signed-off-by: Luke D. Jones <luke@ljones.dev>
---
 drivers/platform/x86/asus-wmi.c            | 18 +++++++++++++-----
 include/linux/platform_data/x86/asus-wmi.h |  1 +
 2 files changed, 14 insertions(+), 5 deletions(-)

diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c
index 54ce0fb26f42..285821ef819b 100644
--- a/drivers/platform/x86/asus-wmi.c
+++ b/drivers/platform/x86/asus-wmi.c
@@ -268,6 +268,7 @@ struct asus_wmi {
 	bool egpu_connect_available;
 	bool dgpu_disable_available;
 	bool gpu_mux_mode_available;
+	u32 gpu_mux_dev;
 
 	/* Tunables provided by ASUS for gaming laptops */
 	bool ppt_pl2_sppt_available;
@@ -682,7 +683,7 @@ static ssize_t dgpu_disable_store(struct device *dev,
 		return -EINVAL;
 
 	if (asus->gpu_mux_mode_available) {
-		result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_GPU_MUX);
+		result = asus_wmi_get_devstate_simple(asus, asus->gpu_mux_dev);
 		if (result < 0)
 			/* An error here may signal greater failure of GPU handling */
 			return result;
@@ -748,7 +749,7 @@ static ssize_t egpu_enable_store(struct device *dev,
 	}
 
 	if (asus->gpu_mux_mode_available) {
-		result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_GPU_MUX);
+		result = asus_wmi_get_devstate_simple(asus, asus->gpu_mux_dev);
 		if (result < 0) {
 			/* An error here may signal greater failure of GPU handling */
 			pr_warn("Failed to get gpu mux status: %d\n", result);
@@ -801,7 +802,7 @@ static ssize_t gpu_mux_mode_show(struct device *dev,
 	struct asus_wmi *asus = dev_get_drvdata(dev);
 	int result;
 
-	result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_GPU_MUX);
+	result = asus_wmi_get_devstate_simple(asus, asus->gpu_mux_dev);
 	if (result < 0)
 		return result;
 
@@ -847,7 +848,7 @@ static ssize_t gpu_mux_mode_store(struct device *dev,
 		}
 	}
 
-	err = asus_wmi_set_devstate(ASUS_WMI_DEVID_GPU_MUX, optimus, &result);
+	err = asus_wmi_set_devstate(asus->gpu_mux_dev, optimus, &result);
 	if (err) {
 		dev_err(dev, "Failed to set GPU MUX mode: %d\n", err);
 		return err;
@@ -4538,7 +4539,6 @@ static int asus_wmi_add(struct platform_device *pdev)
 	asus->egpu_enable_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_EGPU);
 	asus->egpu_connect_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_EGPU_CONNECTED);
 	asus->dgpu_disable_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_DGPU);
-	asus->gpu_mux_mode_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_GPU_MUX);
 	asus->kbd_rgb_mode_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_TUF_RGB_MODE);
 	asus->kbd_rgb_state_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_TUF_RGB_STATE);
 	asus->ppt_pl2_sppt_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_PPT_PL2_SPPT);
@@ -4560,6 +4560,14 @@ static int asus_wmi_add(struct platform_device *pdev)
 		asus->mini_led_dev_id = ASUS_WMI_DEVID_MINI_LED_MODE2;
 	}
 
+	if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_GPU_MUX)) {
+		asus->gpu_mux_mode_available = true;
+		asus->gpu_mux_dev = ASUS_WMI_DEVID_GPU_MUX;
+	} else if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_GPU_MUX_VIVO)) {
+		asus->gpu_mux_mode_available = true;
+		asus->gpu_mux_dev = ASUS_WMI_DEVID_GPU_MUX_VIVO;
+	}
+
 	err = fan_boost_mode_check_present(asus);
 	if (err)
 		goto fail_fan_boost_mode;
diff --git a/include/linux/platform_data/x86/asus-wmi.h b/include/linux/platform_data/x86/asus-wmi.h
index 9cadce10ad9a..b48b024dd844 100644
--- a/include/linux/platform_data/x86/asus-wmi.h
+++ b/include/linux/platform_data/x86/asus-wmi.h
@@ -128,6 +128,7 @@
 
 /* gpu mux switch, 0 = dGPU, 1 = Optimus */
 #define ASUS_WMI_DEVID_GPU_MUX		0x00090016
+#define ASUS_WMI_DEVID_GPU_MUX_VIVO	0x00090026
 
 /* TUF laptop RGB modes/colours */
 #define ASUS_WMI_DEVID_TUF_RGB_MODE	0x00100056
-- 
2.44.0

[PATCH 3/9] platform/x86: asus-wmi: add support variant of TUF RGB

[Luke D. Jones]

Adds support for a second TUF RGB wmi call that some versions of the TUF
laptop come with. Also adjusts existing support to select whichever is
available.

Signed-off-by: Luke D. Jones <luke@ljones.dev>
---
 drivers/platform/x86/asus-wmi.c            | 13 +++++++++++--
 include/linux/platform_data/x86/asus-wmi.h |  1 +
 2 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c
index 285821ef819b..094a93f24667 100644
--- a/drivers/platform/x86/asus-wmi.c
+++ b/drivers/platform/x86/asus-wmi.c
@@ -280,6 +280,7 @@ struct asus_wmi {
 	bool nv_temp_tgt_available;
 
 	bool kbd_rgb_mode_available;
+	u32 kbd_rgb_dev;
 	bool kbd_rgb_state_available;
 
 	bool throttle_thermal_policy_available;
@@ -870,6 +871,7 @@ static ssize_t kbd_rgb_mode_store(struct device *dev,
 				 struct device_attribute *attr,
 				 const char *buf, size_t count)
 {
+	struct asus_wmi *asus = dev_get_drvdata(dev);
 	u32 cmd, mode, r, g, b, speed;
 	int err;
 
@@ -906,7 +908,7 @@ static ssize_t kbd_rgb_mode_store(struct device *dev,
 		speed = 0xeb;
 	}
 
-	err = asus_wmi_evaluate_method3(ASUS_WMI_METHODID_DEVS, ASUS_WMI_DEVID_TUF_RGB_MODE,
+	err = asus_wmi_evaluate_method3(ASUS_WMI_METHODID_DEVS, asus->kbd_rgb_dev,
 			cmd | (mode << 8) | (r << 16) | (g << 24), b | (speed << 8), NULL);
 	if (err)
 		return err;
@@ -4539,7 +4541,6 @@ static int asus_wmi_add(struct platform_device *pdev)
 	asus->egpu_enable_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_EGPU);
 	asus->egpu_connect_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_EGPU_CONNECTED);
 	asus->dgpu_disable_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_DGPU);
-	asus->kbd_rgb_mode_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_TUF_RGB_MODE);
 	asus->kbd_rgb_state_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_TUF_RGB_STATE);
 	asus->ppt_pl2_sppt_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_PPT_PL2_SPPT);
 	asus->ppt_pl1_spl_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_PPT_PL1_SPL);
@@ -4568,6 +4569,14 @@ static int asus_wmi_add(struct platform_device *pdev)
 		asus->gpu_mux_dev = ASUS_WMI_DEVID_GPU_MUX_VIVO;
 	}
 
+	if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_TUF_RGB_MODE)) {
+		asus->kbd_rgb_mode_available = true;
+		asus->kbd_rgb_dev = ASUS_WMI_DEVID_TUF_RGB_MODE;
+	} else if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_TUF_RGB_MODE2)) {
+		asus->kbd_rgb_mode_available = true;
+		asus->kbd_rgb_dev = ASUS_WMI_DEVID_TUF_RGB_MODE2;
+	}
+
 	err = fan_boost_mode_check_present(asus);
 	if (err)
 		goto fail_fan_boost_mode;
diff --git a/include/linux/platform_data/x86/asus-wmi.h b/include/linux/platform_data/x86/asus-wmi.h
index b48b024dd844..3e9a01467c67 100644
--- a/include/linux/platform_data/x86/asus-wmi.h
+++ b/include/linux/platform_data/x86/asus-wmi.h
@@ -132,6 +132,7 @@
 
 /* TUF laptop RGB modes/colours */
 #define ASUS_WMI_DEVID_TUF_RGB_MODE	0x00100056
+#define ASUS_WMI_DEVID_TUF_RGB_MODE2	0x0010005A
 
 /* TUF laptop RGB power/state */
 #define ASUS_WMI_DEVID_TUF_RGB_STATE	0x00100057
-- 
2.44.0

[PATCH 4/9] platform/x86: asus-wmi: support toggling POST sound

[Luke D. Jones]

Add support for toggling the BIOS POST sound on some ASUS laptops.

Signed-off-by: Luke D. Jones <luke@ljones.dev>
---
 .../ABI/testing/sysfs-platform-asus-wmi       |  9 ++++
 drivers/platform/x86/asus-wmi.c               | 51 +++++++++++++++++++
 include/linux/platform_data/x86/asus-wmi.h    |  3 ++
 3 files changed, 63 insertions(+)

diff --git a/Documentation/ABI/testing/sysfs-platform-asus-wmi b/Documentation/ABI/testing/sysfs-platform-asus-wmi
index 61a745d2476f..5645dbac4ce8 100644
--- a/Documentation/ABI/testing/sysfs-platform-asus-wmi
+++ b/Documentation/ABI/testing/sysfs-platform-asus-wmi
@@ -194,3 +194,12 @@ Contact:	"Luke Jones" <luke@ljones.dev>
 Description:
 		Set the target temperature limit of the Nvidia dGPU:
 			* min=75, max=87
+
+What:		/sys/devices/platform/<platform>/boot_sound
+Date:		Jun 2023
+KernelVersion:	6.10
+Contact:	"Luke Jones" <luke@ljones.dev>
+Description:
+		Set if the BIOS POST sound is played on boot.
+			* 0 - False,
+			* 1 - True
\ No newline at end of file
diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c
index 094a93f24667..6cac9c3eb8b2 100644
--- a/drivers/platform/x86/asus-wmi.c
+++ b/drivers/platform/x86/asus-wmi.c
@@ -2106,6 +2106,54 @@ static ssize_t panel_od_store(struct device *dev,
 }
 static DEVICE_ATTR_RW(panel_od);
 
+/* Bootup sound ***************************************************************/
+
+static ssize_t boot_sound_show(struct device *dev,
+			     struct device_attribute *attr, char *buf)
+{
+	struct asus_wmi *asus = dev_get_drvdata(dev);
+	int result;
+
+	result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_BOOT_SOUND);
+	if (result < 0)
+		return result;
+
+	return sysfs_emit(buf, "%d\n", result);
+}
+
+static ssize_t boot_sound_store(struct device *dev,
+			      struct device_attribute *attr,
+			      const char *buf, size_t count)
+{
+	int result, err;
+	u32 snd;
+
+	struct asus_wmi *asus = dev_get_drvdata(dev);
+
+	result = kstrtou32(buf, 10, &snd);
+	if (result)
+		return result;
+
+	if (snd > 1)
+		return -EINVAL;
+
+	err = asus_wmi_set_devstate(ASUS_WMI_DEVID_BOOT_SOUND, snd, &result);
+	if (err) {
+		pr_warn("Failed to set boot sound: %d\n", err);
+		return err;
+	}
+
+	if (result > 1) {
+		pr_warn("Failed to set panel boot sound (result): 0x%x\n", result);
+		return -EIO;
+	}
+
+	sysfs_notify(&asus->platform_device->dev.kobj, NULL, "boot_sound");
+
+	return count;
+}
+static DEVICE_ATTR_RW(boot_sound);
+
 /* Mini-LED mode **************************************************************/
 static ssize_t mini_led_mode_show(struct device *dev,
 				   struct device_attribute *attr, char *buf)
@@ -4227,6 +4275,7 @@ static struct attribute *platform_attributes[] = {
 	&dev_attr_ppt_platform_sppt.attr,
 	&dev_attr_nv_dynamic_boost.attr,
 	&dev_attr_nv_temp_target.attr,
+	&dev_attr_boot_sound.attr,
 	&dev_attr_panel_od.attr,
 	&dev_attr_mini_led_mode.attr,
 	&dev_attr_available_mini_led_mode.attr,
@@ -4279,6 +4328,8 @@ static umode_t asus_sysfs_is_visible(struct kobject *kobj,
 		ok = asus->nv_dyn_boost_available;
 	else if (attr == &dev_attr_nv_temp_target.attr)
 		ok = asus->nv_temp_tgt_available;
+	else if (attr == &dev_attr_boot_sound.attr)
+		devid = ASUS_WMI_DEVID_BOOT_SOUND;
 	else if (attr == &dev_attr_panel_od.attr)
 		ok = asus->panel_overdrive_available;
 	else if (attr == &dev_attr_mini_led_mode.attr)
diff --git a/include/linux/platform_data/x86/asus-wmi.h b/include/linux/platform_data/x86/asus-wmi.h
index 3e9a01467c67..3eb5cd6773ad 100644
--- a/include/linux/platform_data/x86/asus-wmi.h
+++ b/include/linux/platform_data/x86/asus-wmi.h
@@ -137,6 +137,9 @@
 /* TUF laptop RGB power/state */
 #define ASUS_WMI_DEVID_TUF_RGB_STATE	0x00100057
 
+/* Bootup sound control */
+#define ASUS_WMI_DEVID_BOOT_SOUND	0x00130022
+
 /* DSTS masks */
 #define ASUS_WMI_DSTS_STATUS_BIT	0x00000001
 #define ASUS_WMI_DSTS_UNKNOWN_BIT	0x00000002
-- 
2.44.0

Re: [PATCH 4/9] platform/x86: asus-wmi: support toggling POST sound

[Ilpo Järvinen]

[-- Attachment #1: Type: text/plain, Size: 1282 bytes --]

On Mon, 25 Mar 2024, Luke D. Jones wrote:

> Add support for toggling the BIOS POST sound on some ASUS laptops.
> 
> Signed-off-by: Luke D. Jones <luke@ljones.dev>
> ---
>  .../ABI/testing/sysfs-platform-asus-wmi       |  9 ++++
>  drivers/platform/x86/asus-wmi.c               | 51 +++++++++++++++++++
>  include/linux/platform_data/x86/asus-wmi.h    |  3 ++
>  3 files changed, 63 insertions(+)
> 
> diff --git a/Documentation/ABI/testing/sysfs-platform-asus-wmi b/Documentation/ABI/testing/sysfs-platform-asus-wmi
> index 61a745d2476f..5645dbac4ce8 100644
> --- a/Documentation/ABI/testing/sysfs-platform-asus-wmi
> +++ b/Documentation/ABI/testing/sysfs-platform-asus-wmi
> @@ -194,3 +194,12 @@ Contact:	"Luke Jones" <luke@ljones.dev>
>  Description:
>  		Set the target temperature limit of the Nvidia dGPU:
>  			* min=75, max=87
> +
> +What:		/sys/devices/platform/<platform>/boot_sound
> +Date:		Jun 2023

2024? :-)

> +KernelVersion:	6.10
> +Contact:	"Luke Jones" <luke@ljones.dev>
> +Description:
> +		Set if the BIOS POST sound is played on boot.
> +			* 0 - False,
> +			* 1 - True
> \ No newline at end of file

Please add the new line.

Once those are fixed:

Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

-- 
 i.

Re: [PATCH 4/9] platform/x86: asus-wmi: support toggling POST sound

[Ilpo Järvinen]

On Mon, 25 Mar 2024, Luke D. Jones wrote:

> Add support for toggling the BIOS POST sound on some ASUS laptops.
> 
> Signed-off-by: Luke D. Jones <luke@ljones.dev>
> ---
>  .../ABI/testing/sysfs-platform-asus-wmi       |  9 ++++
>  drivers/platform/x86/asus-wmi.c               | 51 +++++++++++++++++++
>  include/linux/platform_data/x86/asus-wmi.h    |  3 ++
>  3 files changed, 63 insertions(+)
> 
> diff --git a/Documentation/ABI/testing/sysfs-platform-asus-wmi b/Documentation/ABI/testing/sysfs-platform-asus-wmi
> index 61a745d2476f..5645dbac4ce8 100644
> --- a/Documentation/ABI/testing/sysfs-platform-asus-wmi
> +++ b/Documentation/ABI/testing/sysfs-platform-asus-wmi
> @@ -194,3 +194,12 @@ Contact:	"Luke Jones" <luke@ljones.dev>
>  Description:
>  		Set the target temperature limit of the Nvidia dGPU:
>  			* min=75, max=87
> +
> +What:		/sys/devices/platform/<platform>/boot_sound
> +Date:		Jun 2023
> +KernelVersion:	6.10
> +Contact:	"Luke Jones" <luke@ljones.dev>
> +Description:
> +		Set if the BIOS POST sound is played on boot.
> +			* 0 - False,
> +			* 1 - True
> \ No newline at end of file
> diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c
> index 094a93f24667..6cac9c3eb8b2 100644
> --- a/drivers/platform/x86/asus-wmi.c
> +++ b/drivers/platform/x86/asus-wmi.c
> @@ -2106,6 +2106,54 @@ static ssize_t panel_od_store(struct device *dev,
>  }
>  static DEVICE_ATTR_RW(panel_od);
>  
> +/* Bootup sound ***************************************************************/
> +
> +static ssize_t boot_sound_show(struct device *dev,
> +			     struct device_attribute *attr, char *buf)
> +{
> +	struct asus_wmi *asus = dev_get_drvdata(dev);
> +	int result;
> +
> +	result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_BOOT_SOUND);
> +	if (result < 0)
> +		return result;
> +
> +	return sysfs_emit(buf, "%d\n", result);
> +}
> +
> +static ssize_t boot_sound_store(struct device *dev,
> +			      struct device_attribute *attr,
> +			      const char *buf, size_t count)
> +{
> +	int result, err;
> +	u32 snd;
> +
> +	struct asus_wmi *asus = dev_get_drvdata(dev);
> +
> +	result = kstrtou32(buf, 10, &snd);
> +	if (result)
> +		return result;
> +
> +	if (snd > 1)
> +		return -EINVAL;
> +
> +	err = asus_wmi_set_devstate(ASUS_WMI_DEVID_BOOT_SOUND, snd, &result);
> +	if (err) {
> +		pr_warn("Failed to set boot sound: %d\n", err);
> +		return err;
> +	}
> +
> +	if (result > 1) {
> +		pr_warn("Failed to set panel boot sound (result): 0x%x\n", result);
> +		return -EIO;
> +	}
> +
> +	sysfs_notify(&asus->platform_device->dev.kobj, NULL, "boot_sound");
> +
> +	return count;
> +}
> +static DEVICE_ATTR_RW(boot_sound);

I started to think that perhaps these would be a way to create helper for 
these sysfs functions to call as they are quite similar, only the wmi id, 
strings and the range check change (the GPU functions do a few extra 
checks and could remain standalone functions but the rest look very 
similar to each other).

-- 
 i.

Re: [PATCH 4/9] platform/x86: asus-wmi: support toggling POST sound

[Luke Jones]

On Tue, 26 Mar 2024, at 3:02 AM, Ilpo Järvinen wrote:
> On Mon, 25 Mar 2024, Luke D. Jones wrote:
> 
> > Add support for toggling the BIOS POST sound on some ASUS laptops.
> > 
> > Signed-off-by: Luke D. Jones <luke@ljones.dev>
> > ---
> >  .../ABI/testing/sysfs-platform-asus-wmi       |  9 ++++
> >  drivers/platform/x86/asus-wmi.c               | 51 +++++++++++++++++++
> >  include/linux/platform_data/x86/asus-wmi.h    |  3 ++
> >  3 files changed, 63 insertions(+)
> > 
> > diff --git a/Documentation/ABI/testing/sysfs-platform-asus-wmi b/Documentation/ABI/testing/sysfs-platform-asus-wmi
> > index 61a745d2476f..5645dbac4ce8 100644
> > --- a/Documentation/ABI/testing/sysfs-platform-asus-wmi
> > +++ b/Documentation/ABI/testing/sysfs-platform-asus-wmi
> > @@ -194,3 +194,12 @@ Contact: "Luke Jones" <luke@ljones.dev>
> >  Description:
> >  Set the target temperature limit of the Nvidia dGPU:
> >  * min=75, max=87
> > +
> > +What: /sys/devices/platform/<platform>/boot_sound
> > +Date: Jun 2023
> > +KernelVersion: 6.10
> > +Contact: "Luke Jones" <luke@ljones.dev>
> > +Description:
> > + Set if the BIOS POST sound is played on boot.
> > + * 0 - False,
> > + * 1 - True
> > \ No newline at end of file
> > diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c
> > index 094a93f24667..6cac9c3eb8b2 100644
> > --- a/drivers/platform/x86/asus-wmi.c
> > +++ b/drivers/platform/x86/asus-wmi.c
> > @@ -2106,6 +2106,54 @@ static ssize_t panel_od_store(struct device *dev,
> >  }
> >  static DEVICE_ATTR_RW(panel_od);
> >  
> > +/* Bootup sound ***************************************************************/
> > +
> > +static ssize_t boot_sound_show(struct device *dev,
> > +      struct device_attribute *attr, char *buf)
> > +{
> > + struct asus_wmi *asus = dev_get_drvdata(dev);
> > + int result;
> > +
> > + result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_BOOT_SOUND);
> > + if (result < 0)
> > + return result;
> > +
> > + return sysfs_emit(buf, "%d\n", result);
> > +}
> > +
> > +static ssize_t boot_sound_store(struct device *dev,
> > +       struct device_attribute *attr,
> > +       const char *buf, size_t count)
> > +{
> > + int result, err;
> > + u32 snd;
> > +
> > + struct asus_wmi *asus = dev_get_drvdata(dev);
> > +
> > + result = kstrtou32(buf, 10, &snd);
> > + if (result)
> > + return result;
> > +
> > + if (snd > 1)
> > + return -EINVAL;
> > +
> > + err = asus_wmi_set_devstate(ASUS_WMI_DEVID_BOOT_SOUND, snd, &result);
> > + if (err) {
> > + pr_warn("Failed to set boot sound: %d\n", err);
> > + return err;
> > + }
> > +
> > + if (result > 1) {
> > + pr_warn("Failed to set panel boot sound (result): 0x%x\n", result);
> > + return -EIO;
> > + }
> > +
> > + sysfs_notify(&asus->platform_device->dev.kobj, NULL, "boot_sound");
> > +
> > + return count;
> > +}
> > +static DEVICE_ATTR_RW(boot_sound);
> 
> I started to think that perhaps these would be a way to create helper for 
> these sysfs functions to call as they are quite similar, only the wmi id, 
> strings and the range check change (the GPU functions do a few extra 
> checks and could remain standalone functions but the rest look very 
> similar to each other).

I absolutely agree. In rust I would have written function or macro by now. I'm working on this but won't submit until we've been through the existing chain and applied.

Looks like the entire asus-wmi could use some maintenance tbh, I'll do what I can.

Cheers,
Luke.

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

[Luke D. Jones]

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@ljones.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 6cac9c3eb8b2..1e369b673a72 100644
--- a/drivers/platform/x86/asus-wmi.c
+++ b/drivers/platform/x86/asus-wmi.c
@@ -271,13 +271,13 @@ 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;
 
 	bool kbd_rgb_mode_available;
 	u32 kbd_rgb_dev;
@@ -1021,11 +1021,21 @@ 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);
+}
+static DEVICE_ATTR_RW(ppt_pl2_sppt);
 
 /* Tunable: PPT, Intel=PL1, AMD=SPL ******************************************/
 static ssize_t ppt_pl1_spl_store(struct device *dev,
@@ -1055,11 +1065,20 @@ static ssize_t ppt_pl1_spl_store(struct device *dev,
 		return -EIO;
 	}
 
+	asus->ppt_pl1_spl = value;
 	sysfs_notify(&asus->platform_device->dev.kobj, NULL, "ppt_pl1_spl");
 
 	return count;
 }
-static DEVICE_ATTR_WO(ppt_pl1_spl);
+static ssize_t ppt_pl1_spl_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_pl1_spl);
+}
+static DEVICE_ATTR_RW(ppt_pl1_spl);
 
 /* Tunable: PPT APU FPPT ******************************************************/
 static ssize_t ppt_fppt_store(struct device *dev,
@@ -1089,11 +1108,21 @@ static ssize_t ppt_fppt_store(struct device *dev,
 		return -EIO;
 	}
 
+	asus->ppt_fppt = value;
 	sysfs_notify(&asus->platform_device->dev.kobj, NULL, "ppt_fpu_sppt");
 
 	return count;
 }
-static DEVICE_ATTR_WO(ppt_fppt);
+
+static ssize_t ppt_fppt_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_fppt);
+}
+static DEVICE_ATTR_RW(ppt_fppt);
 
 /* Tunable: PPT APU SPPT *****************************************************/
 static ssize_t ppt_apu_sppt_store(struct device *dev,
@@ -1123,11 +1152,21 @@ static ssize_t ppt_apu_sppt_store(struct device *dev,
 		return -EIO;
 	}
 
+	asus->ppt_apu_sppt = value;
 	sysfs_notify(&asus->platform_device->dev.kobj, NULL, "ppt_apu_sppt");
 
 	return count;
 }
-static DEVICE_ATTR_WO(ppt_apu_sppt);
+
+static ssize_t ppt_apu_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_apu_sppt);
+}
+static DEVICE_ATTR_RW(ppt_apu_sppt);
 
 /* Tunable: PPT platform SPPT ************************************************/
 static ssize_t ppt_platform_sppt_store(struct device *dev,
@@ -1157,11 +1196,21 @@ static ssize_t ppt_platform_sppt_store(struct device *dev,
 		return -EIO;
 	}
 
+	asus->ppt_platform_sppt = value;
 	sysfs_notify(&asus->platform_device->dev.kobj, NULL, "ppt_platform_sppt");
 
 	return count;
 }
-static DEVICE_ATTR_WO(ppt_platform_sppt);
+
+static ssize_t ppt_platform_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_platform_sppt);
+}
+static DEVICE_ATTR_RW(ppt_platform_sppt);
 
 /* Tunable: NVIDIA dynamic boost *********************************************/
 static ssize_t nv_dynamic_boost_store(struct device *dev,
@@ -1191,11 +1240,21 @@ static ssize_t nv_dynamic_boost_store(struct device *dev,
 		return -EIO;
 	}
 
+	asus->nv_dynamic_boost = value;
 	sysfs_notify(&asus->platform_device->dev.kobj, NULL, "nv_dynamic_boost");
 
 	return count;
 }
-static DEVICE_ATTR_WO(nv_dynamic_boost);
+
+static ssize_t nv_dynamic_boost_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->nv_dynamic_boost);
+}
+static DEVICE_ATTR_RW(nv_dynamic_boost);
 
 /* Tunable: NVIDIA temperature target ****************************************/
 static ssize_t nv_temp_target_store(struct device *dev,
@@ -1225,11 +1284,21 @@ static ssize_t nv_temp_target_store(struct device *dev,
 		return -EIO;
 	}
 
+	asus->nv_temp_target = value;
 	sysfs_notify(&asus->platform_device->dev.kobj, NULL, "nv_temp_target");
 
 	return count;
 }
-static DEVICE_ATTR_WO(nv_temp_target);
+
+static ssize_t nv_temp_target_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->nv_temp_target);
+}
+static DEVICE_ATTR_RW(nv_temp_target);
 
 /* Battery ********************************************************************/
 
@@ -4315,19 +4384,19 @@ static umode_t asus_sysfs_is_visible(struct kobject *kobj,
 	else if (attr == &dev_attr_throttle_thermal_policy.attr)
 		ok = asus->throttle_thermal_policy_available;
 	else if (attr == &dev_attr_ppt_pl2_sppt.attr)
-		ok = asus->ppt_pl2_sppt_available;
+		devid = ASUS_WMI_DEVID_PPT_PL2_SPPT;
 	else if (attr == &dev_attr_ppt_pl1_spl.attr)
-		ok = asus->ppt_pl1_spl_available;
+		devid = ASUS_WMI_DEVID_PPT_PL1_SPL;
 	else if (attr == &dev_attr_ppt_fppt.attr)
-		ok = asus->ppt_fppt_available;
+		devid = ASUS_WMI_DEVID_PPT_FPPT;
 	else if (attr == &dev_attr_ppt_apu_sppt.attr)
-		ok = asus->ppt_apu_sppt_available;
+		devid = ASUS_WMI_DEVID_PPT_APU_SPPT;
 	else if (attr == &dev_attr_ppt_platform_sppt.attr)
-		ok = asus->ppt_plat_sppt_available;
+		devid = ASUS_WMI_DEVID_PPT_PLAT_SPPT;
 	else if (attr == &dev_attr_nv_dynamic_boost.attr)
-		ok = asus->nv_dyn_boost_available;
+		devid = ASUS_WMI_DEVID_NV_DYN_BOOST;
 	else if (attr == &dev_attr_nv_temp_target.attr)
-		ok = asus->nv_temp_tgt_available;
+		devid = ASUS_WMI_DEVID_NV_THERM_TARGET;
 	else if (attr == &dev_attr_boot_sound.attr)
 		devid = ASUS_WMI_DEVID_BOOT_SOUND;
 	else if (attr == &dev_attr_panel_od.attr)
@@ -4588,18 +4657,20 @@ static int asus_wmi_add(struct platform_device *pdev)
 	if (err)
 		goto fail_platform;
 
+	/* ensure defaults for tunables */
+	asus->ppt_pl2_sppt = 5;
+	asus->ppt_pl1_spl = 5;
+	asus->ppt_apu_sppt = 5;
+	asus->ppt_platform_sppt = 5;
+	asus->ppt_fppt = 5;
+	asus->nv_dynamic_boost = 5;
+	asus->nv_temp_target = 75;
+
 	asus->charge_mode_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_CHARGE_MODE);
 	asus->egpu_enable_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_EGPU);
 	asus->egpu_connect_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_EGPU_CONNECTED);
 	asus->dgpu_disable_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_DGPU);
 	asus->kbd_rgb_state_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_TUF_RGB_STATE);
-	asus->ppt_pl2_sppt_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_PPT_PL2_SPPT);
-	asus->ppt_pl1_spl_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_PPT_PL1_SPL);
-	asus->ppt_fppt_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_PPT_FPPT);
-	asus->ppt_apu_sppt_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_PPT_APU_SPPT);
-	asus->ppt_plat_sppt_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_PPT_PLAT_SPPT);
-	asus->nv_dyn_boost_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_NV_DYN_BOOST);
-	asus->nv_temp_tgt_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_NV_THERM_TARGET);
 	asus->panel_overdrive_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_PANEL_OD);
 	asus->ally_mcu_usb_switch = acpi_has_method(NULL, ASUS_USB0_PWR_EC0_CSEE)
 						&& dmi_match(DMI_BOARD_NAME, "RC71L");
-- 
2.44.0

[PATCH 6/9] platform/x86: asus-wmi: adjust formatting of ppt-<name>() functions

[Luke D. Jones]

Shift the call to dev_get_drvdata() up to top of the function block
in all of the ppt_<name>() functions as part of a minor cleanup.

Signed-off-by: Luke D. Jones <luke@ljones.dev>
---
 drivers/platform/x86/asus-wmi.c | 21 +++++++--------------
 1 file changed, 7 insertions(+), 14 deletions(-)

diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c
index 1e369b673a72..11ce6dec31c6 100644
--- a/drivers/platform/x86/asus-wmi.c
+++ b/drivers/platform/x86/asus-wmi.c
@@ -998,11 +998,10 @@ static ssize_t ppt_pl2_sppt_store(struct device *dev,
 				    struct device_attribute *attr,
 				    const char *buf, size_t count)
 {
+	struct asus_wmi *asus = dev_get_drvdata(dev);
 	int result, err;
 	u32 value;
 
-	struct asus_wmi *asus = dev_get_drvdata(dev);
-
 	result = kstrtou32(buf, 10, &value);
 	if (result)
 		return result;
@@ -1042,11 +1041,10 @@ static ssize_t ppt_pl1_spl_store(struct device *dev,
 				    struct device_attribute *attr,
 				    const char *buf, size_t count)
 {
+	struct asus_wmi *asus = dev_get_drvdata(dev);
 	int result, err;
 	u32 value;
 
-	struct asus_wmi *asus = dev_get_drvdata(dev);
-
 	result = kstrtou32(buf, 10, &value);
 	if (result)
 		return result;
@@ -1085,11 +1083,10 @@ static ssize_t ppt_fppt_store(struct device *dev,
 				    struct device_attribute *attr,
 				    const char *buf, size_t count)
 {
+	struct asus_wmi *asus = dev_get_drvdata(dev);
 	int result, err;
 	u32 value;
 
-	struct asus_wmi *asus = dev_get_drvdata(dev);
-
 	result = kstrtou32(buf, 10, &value);
 	if (result)
 		return result;
@@ -1129,11 +1126,10 @@ static ssize_t ppt_apu_sppt_store(struct device *dev,
 				    struct device_attribute *attr,
 				    const char *buf, size_t count)
 {
+	struct asus_wmi *asus = dev_get_drvdata(dev);
 	int result, err;
 	u32 value;
 
-	struct asus_wmi *asus = dev_get_drvdata(dev);
-
 	result = kstrtou32(buf, 10, &value);
 	if (result)
 		return result;
@@ -1173,11 +1169,10 @@ static ssize_t ppt_platform_sppt_store(struct device *dev,
 				    struct device_attribute *attr,
 				    const char *buf, size_t count)
 {
+	struct asus_wmi *asus = dev_get_drvdata(dev);
 	int result, err;
 	u32 value;
 
-	struct asus_wmi *asus = dev_get_drvdata(dev);
-
 	result = kstrtou32(buf, 10, &value);
 	if (result)
 		return result;
@@ -1217,11 +1212,10 @@ static ssize_t nv_dynamic_boost_store(struct device *dev,
 				    struct device_attribute *attr,
 				    const char *buf, size_t count)
 {
+	struct asus_wmi *asus = dev_get_drvdata(dev);
 	int result, err;
 	u32 value;
 
-	struct asus_wmi *asus = dev_get_drvdata(dev);
-
 	result = kstrtou32(buf, 10, &value);
 	if (result)
 		return result;
@@ -1261,11 +1255,10 @@ static ssize_t nv_temp_target_store(struct device *dev,
 				    struct device_attribute *attr,
 				    const char *buf, size_t count)
 {
+	struct asus_wmi *asus = dev_get_drvdata(dev);
 	int result, err;
 	u32 value;
 
-	struct asus_wmi *asus = dev_get_drvdata(dev);
-
 	result = kstrtou32(buf, 10, &value);
 	if (result)
 		return result;
-- 
2.44.0

[PATCH 7/9] platform/x86: asus-wmi: ROG Ally increase wait time, allow MCU powersave

[Luke D. Jones]

The previous work to allow the MCU to be resumed correctly after sleep
and resume tried to take the shortest possible time. However as work
continues in various other parts of the s2idle subsystems it has shown
that it wasn't entirely reliable.

If the MCU disable/enable call is done correctly the MCU fully removes
its USB endpoints, and this shows as a full USB device reconnection on
resume. When we tried to short this as much as possible sometimes the
MCU doesn't get to complete what it needs to do before going to low-power
and this affected the reconnection.

Through trial it is found that the minimum time required is approx 1200ms
to allow a proper disconnect and disable, and the same amount of time on
resume is required to prevent a rapid disconnect/reconnect happening on
seemingly random occasions. To be safe the time is now 1500ms for msleep.

Signed-off-by: Luke D. Jones <luke@ljones.dev>
---
 drivers/platform/x86/asus-wmi.c | 12 ++----------
 1 file changed, 2 insertions(+), 10 deletions(-)

diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c
index 11ce6dec31c6..de338f7180e0 100644
--- a/drivers/platform/x86/asus-wmi.c
+++ b/drivers/platform/x86/asus-wmi.c
@@ -136,7 +136,7 @@ module_param(fnlock_default, bool, 0444);
 /* Controls the power state of the USB0 hub on ROG Ally which input is on */
 #define ASUS_USB0_PWR_EC0_CSEE "\\_SB.PCI0.SBRG.EC0.CSEE"
 /* 300ms so far seems to produce a reliable result on AC and battery */
-#define ASUS_USB0_PWR_EC0_CSEE_WAIT 300
+#define ASUS_USB0_PWR_EC0_CSEE_WAIT 1500
 
 static const char * const ashs_ids[] = { "ATK4001", "ATK4002", NULL };
 
@@ -4873,6 +4873,7 @@ static int asus_hotk_resume_early(struct device *device)
 	struct asus_wmi *asus = dev_get_drvdata(device);
 
 	if (asus->ally_mcu_usb_switch) {
+		/* sleep required to prevent USB0 being yanked then reappearing rapidly */
 		if (ACPI_FAILURE(acpi_execute_simple_method(NULL, ASUS_USB0_PWR_EC0_CSEE, 0xB8)))
 			dev_err(device, "ROG Ally MCU failed to connect USB dev\n");
 		else
@@ -4884,17 +4885,8 @@ static int asus_hotk_resume_early(struct device *device)
 static int asus_hotk_prepare(struct device *device)
 {
 	struct asus_wmi *asus = dev_get_drvdata(device);
-	int result, err;
 
 	if (asus->ally_mcu_usb_switch) {
-		/* When powersave is enabled it causes many issues with resume of USB hub */
-		result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_MCU_POWERSAVE);
-		if (result == 1) {
-			dev_warn(device, "MCU powersave enabled, disabling to prevent resume issues");
-			err = asus_wmi_set_devstate(ASUS_WMI_DEVID_MCU_POWERSAVE, 0, &result);
-			if (err || result != 1)
-				dev_err(device, "Failed to set MCU powersave mode: %d\n", err);
-		}
 		/* sleep required to ensure USB0 is disabled before sleep continues */
 		if (ACPI_FAILURE(acpi_execute_simple_method(NULL, ASUS_USB0_PWR_EC0_CSEE, 0xB7)))
 			dev_err(device, "ROG Ally MCU failed to disconnect USB dev\n");
-- 
2.44.0

[PATCH 8/9] platform/x86: asus-wmi: Add support for MCU powersave

[Luke D. Jones]

Add support for an MCU powersave WMI call. This is intended to set the
MCU in to a low-power mode when sleeping. This mode can cut sleep power
use by around half.

Signed-off-by: Luke D. Jones <luke@ljones.dev>
---
 .../ABI/testing/sysfs-platform-asus-wmi       | 11 +++-
 drivers/platform/x86/asus-wmi.c               | 50 +++++++++++++++++++
 2 files changed, 60 insertions(+), 1 deletion(-)

diff --git a/Documentation/ABI/testing/sysfs-platform-asus-wmi b/Documentation/ABI/testing/sysfs-platform-asus-wmi
index 5645dbac4ce8..ab8e5ab1bba9 100644
--- a/Documentation/ABI/testing/sysfs-platform-asus-wmi
+++ b/Documentation/ABI/testing/sysfs-platform-asus-wmi
@@ -202,4 +202,13 @@ Contact:	"Luke Jones" <luke@ljones.dev>
 Description:
 		Set if the BIOS POST sound is played on boot.
 			* 0 - False,
-			* 1 - True
\ No newline at end of file
+			* 1 - True
+
+What:		/sys/devices/platform/<platform>/mcu_powersave
+Date:		Mar 2023
+KernelVersion:	6.10
+Contact:	"Luke Jones" <luke@ljones.dev>
+Description:
+		Set if the MCU can go in to low-power mode on system sleep
+			* 0 - False,
+			* 1 - True
diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c
index de338f7180e0..9927a48b2dc3 100644
--- a/drivers/platform/x86/asus-wmi.c
+++ b/drivers/platform/x86/asus-wmi.c
@@ -1293,6 +1293,53 @@ static ssize_t nv_temp_target_show(struct device *dev,
 }
 static DEVICE_ATTR_RW(nv_temp_target);
 
+/* Ally MCU Powersave ********************************************************/
+static ssize_t mcu_powersave_show(struct device *dev,
+				   struct device_attribute *attr, char *buf)
+{
+	struct asus_wmi *asus = dev_get_drvdata(dev);
+	int result;
+
+	result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_MCU_POWERSAVE);
+	if (result < 0)
+		return result;
+
+	return sysfs_emit(buf, "%d\n", result);
+}
+
+static ssize_t mcu_powersave_store(struct device *dev,
+				    struct device_attribute *attr,
+				    const char *buf, size_t count)
+{
+	int result, err;
+	u32 enable;
+
+	struct asus_wmi *asus = dev_get_drvdata(dev);
+
+	result = kstrtou32(buf, 10, &enable);
+	if (result)
+		return result;
+
+	if (enable > 1)
+		return -EINVAL;
+
+	err = asus_wmi_set_devstate(ASUS_WMI_DEVID_MCU_POWERSAVE, enable, &result);
+	if (err) {
+		pr_warn("Failed to set MCU powersave: %d\n", err);
+		return err;
+	}
+
+	if (result > 1) {
+		pr_warn("Failed to set MCU powersave (result): 0x%x\n", result);
+		return -EIO;
+	}
+
+	sysfs_notify(&asus->platform_device->dev.kobj, NULL, "mcu_powersave");
+
+	return count;
+}
+static DEVICE_ATTR_RW(mcu_powersave);
+
 /* Battery ********************************************************************/
 
 /* The battery maximum charging percentage */
@@ -4337,6 +4384,7 @@ static struct attribute *platform_attributes[] = {
 	&dev_attr_ppt_platform_sppt.attr,
 	&dev_attr_nv_dynamic_boost.attr,
 	&dev_attr_nv_temp_target.attr,
+	&dev_attr_mcu_powersave.attr,
 	&dev_attr_boot_sound.attr,
 	&dev_attr_panel_od.attr,
 	&dev_attr_mini_led_mode.attr,
@@ -4390,6 +4438,8 @@ static umode_t asus_sysfs_is_visible(struct kobject *kobj,
 		devid = ASUS_WMI_DEVID_NV_DYN_BOOST;
 	else if (attr == &dev_attr_nv_temp_target.attr)
 		devid = ASUS_WMI_DEVID_NV_THERM_TARGET;
+	else if (attr == &dev_attr_mcu_powersave.attr)
+		devid = ASUS_WMI_DEVID_MCU_POWERSAVE;
 	else if (attr == &dev_attr_boot_sound.attr)
 		devid = ASUS_WMI_DEVID_BOOT_SOUND;
 	else if (attr == &dev_attr_panel_od.attr)
-- 
2.44.0

Re: [PATCH 8/9] platform/x86: asus-wmi: Add support for MCU powersave

[Ilpo Järvinen]

On Mon, 25 Mar 2024, Luke D. Jones wrote:

> Add support for an MCU powersave WMI call. This is intended to set the
> MCU in to a low-power mode when sleeping. This mode can cut sleep power
> use by around half.
> 
> Signed-off-by: Luke D. Jones <luke@ljones.dev>
> ---
>  .../ABI/testing/sysfs-platform-asus-wmi       | 11 +++-
>  drivers/platform/x86/asus-wmi.c               | 50 +++++++++++++++++++
>  2 files changed, 60 insertions(+), 1 deletion(-)
> 
> diff --git a/Documentation/ABI/testing/sysfs-platform-asus-wmi b/Documentation/ABI/testing/sysfs-platform-asus-wmi
> index 5645dbac4ce8..ab8e5ab1bba9 100644
> --- a/Documentation/ABI/testing/sysfs-platform-asus-wmi
> +++ b/Documentation/ABI/testing/sysfs-platform-asus-wmi
> @@ -202,4 +202,13 @@ Contact:	"Luke Jones" <luke@ljones.dev>
>  Description:
>  		Set if the BIOS POST sound is played on boot.
>  			* 0 - False,
> -			* 1 - True
> \ No newline at end of file
> +			* 1 - True
> +
> +What:		/sys/devices/platform/<platform>/mcu_powersave
> +Date:		Mar 2023

2024.

-- 
 i.

Re: [PATCH 8/9] platform/x86: asus-wmi: Add support for MCU powersave

[Luke Jones]

On Tue, 26 Mar 2024, at 2:53 AM, Ilpo Järvinen wrote:
> On Mon, 25 Mar 2024, Luke D. Jones wrote:
> 
> > Add support for an MCU powersave WMI call. This is intended to set the
> > MCU in to a low-power mode when sleeping. This mode can cut sleep power
> > use by around half.
> > 
> > Signed-off-by: Luke D. Jones <luke@ljones.dev>
> > ---
> >  .../ABI/testing/sysfs-platform-asus-wmi       | 11 +++-
> >  drivers/platform/x86/asus-wmi.c               | 50 +++++++++++++++++++
> >  2 files changed, 60 insertions(+), 1 deletion(-)
> > 
> > diff --git a/Documentation/ABI/testing/sysfs-platform-asus-wmi b/Documentation/ABI/testing/sysfs-platform-asus-wmi
> > index 5645dbac4ce8..ab8e5ab1bba9 100644
> > --- a/Documentation/ABI/testing/sysfs-platform-asus-wmi
> > +++ b/Documentation/ABI/testing/sysfs-platform-asus-wmi
> > @@ -202,4 +202,13 @@ Contact: "Luke Jones" <luke@ljones.dev>
> >  Description:
> >  Set if the BIOS POST sound is played on boot.
> >  * 0 - False,
> > - * 1 - True
> > \ No newline at end of file
> > + * 1 - True
> > +
> > +What: /sys/devices/platform/<platform>/mcu_powersave
> > +Date: Mar 2023
> 
> 2024.

Always something with me... even proof-read my own patches.

Done.

Luke.

[PATCH 9/9] platform/x86: asus-wmi: cleanup main struct to avoid some holes

[Luke D. Jones]

Reorganises some attr-available calls to remove a few unrequired
booleans in the main driver struct which combined with some
reorganisation prevents a series of large holes seen with pahole.

Signed-off-by: Luke D. Jones <luke@ljones.dev>
---
 drivers/platform/x86/asus-wmi.c | 20 +++++++-------------
 1 file changed, 7 insertions(+), 13 deletions(-)

diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c
index 9927a48b2dc3..e2aadb61b490 100644
--- a/drivers/platform/x86/asus-wmi.c
+++ b/drivers/platform/x86/asus-wmi.c
@@ -251,6 +251,9 @@ struct asus_wmi {
 	u32 tablet_switch_dev_id;
 	bool tablet_switch_inverted;
 
+	/* The ROG Ally device requires the MCU USB device be disconnected before suspend */
+	bool ally_mcu_usb_switch;
+
 	enum fan_type fan_type;
 	enum fan_type gpu_fan_type;
 	enum fan_type mid_fan_type;
@@ -263,9 +266,7 @@ struct asus_wmi {
 	u8 fan_boost_mode_mask;
 	u8 fan_boost_mode;
 
-	bool charge_mode_available;
 	bool egpu_enable_available;
-	bool egpu_connect_available;
 	bool dgpu_disable_available;
 	bool gpu_mux_mode_available;
 	u32 gpu_mux_dev;
@@ -279,8 +280,8 @@ struct asus_wmi {
 	u32 nv_dynamic_boost;
 	u32 nv_temp_target;
 
-	bool kbd_rgb_mode_available;
 	u32 kbd_rgb_dev;
+	bool kbd_rgb_mode_available;
 	bool kbd_rgb_state_available;
 
 	bool throttle_thermal_policy_available;
@@ -297,7 +298,6 @@ struct asus_wmi {
 	// The RSOC controls the maximum charging percentage.
 	bool battery_rsoc_available;
 
-	bool panel_overdrive_available;
 	bool mini_led_mode_available;
 	u32 mini_led_dev_id;
 
@@ -309,9 +309,6 @@ struct asus_wmi {
 
 	bool fnlock_locked;
 
-	/* The ROG Ally device requires the MCU USB device be disconnected before suspend */
-	bool ally_mcu_usb_switch;
-
 	struct asus_wmi_debug debug;
 
 	struct asus_wmi_driver *driver;
@@ -4411,11 +4408,11 @@ static umode_t asus_sysfs_is_visible(struct kobject *kobj,
 	else if (attr == &dev_attr_als_enable.attr)
 		devid = ASUS_WMI_DEVID_ALS_ENABLE;
 	else if (attr == &dev_attr_charge_mode.attr)
-		ok = asus->charge_mode_available;
+		devid = ASUS_WMI_DEVID_CHARGE_MODE;
 	else if (attr == &dev_attr_egpu_enable.attr)
 		ok = asus->egpu_enable_available;
 	else if (attr == &dev_attr_egpu_connected.attr)
-		ok = asus->egpu_connect_available;
+		devid = ASUS_WMI_DEVID_EGPU_CONNECTED;
 	else if (attr == &dev_attr_dgpu_disable.attr)
 		ok = asus->dgpu_disable_available;
 	else if (attr == &dev_attr_gpu_mux_mode.attr)
@@ -4443,7 +4440,7 @@ static umode_t asus_sysfs_is_visible(struct kobject *kobj,
 	else if (attr == &dev_attr_boot_sound.attr)
 		devid = ASUS_WMI_DEVID_BOOT_SOUND;
 	else if (attr == &dev_attr_panel_od.attr)
-		ok = asus->panel_overdrive_available;
+		devid = ASUS_WMI_DEVID_PANEL_OD;
 	else if (attr == &dev_attr_mini_led_mode.attr)
 		ok = asus->mini_led_mode_available;
 
@@ -4709,12 +4706,9 @@ static int asus_wmi_add(struct platform_device *pdev)
 	asus->nv_dynamic_boost = 5;
 	asus->nv_temp_target = 75;
 
-	asus->charge_mode_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_CHARGE_MODE);
 	asus->egpu_enable_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_EGPU);
-	asus->egpu_connect_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_EGPU_CONNECTED);
 	asus->dgpu_disable_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_DGPU);
 	asus->kbd_rgb_state_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_TUF_RGB_STATE);
-	asus->panel_overdrive_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_PANEL_OD);
 	asus->ally_mcu_usb_switch = acpi_has_method(NULL, ASUS_USB0_PWR_EC0_CSEE)
 						&& dmi_match(DMI_BOARD_NAME, "RC71L");
 
-- 
2.44.0