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platform/x86: asus-wmi: Increase FAN_CURVE_BUF_LEN to 32

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Fix for TUF laptops returning with an -ENOSPC on calling
asus_wmi_evaluate_method_buf() when fetching default curves. The TUF method
requires at least 32 bytes space.

This also moves and changes the pr_debug() in fan_curve_check_present() to
pr_warn() in fan_curve_get_factory_default() so that there is at least some
indication in logs of why it fails.

Signed-off-by: Luke D. Jones <luke@ljones.dev>
Link: https://lore.kernel.org/r/20220828074638.5473-1-luke@ljones.dev
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
This commit is contained in:
Luke D. Jones 2022-08-28 19:46:38 +12:00 committed by Hans de Goede
parent 6dd9eb95cb
commit a2bdf10ce9
1 changed files with 4 additions and 5 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

9
drivers/platform/x86/asus-wmi.c
View file

@ -108,7 +108,7 @@ module_param(fnlock_default, bool, 0444);
#define WMI_EVENT_MASK 0xFFFF
#define FAN_CURVE_POINTS 8
#define FAN_CURVE_BUF_LEN (FAN_CURVE_POINTS * 2)
#define FAN_CURVE_BUF_LEN 32
#define FAN_CURVE_DEV_CPU 0x00
#define FAN_CURVE_DEV_GPU 0x01
/* Mask to determine if setting temperature or percentage */
@ -2383,8 +2383,10 @@ static int fan_curve_get_factory_default(struct asus_wmi *asus, u32 fan_dev)
curves = &asus->custom_fan_curves[fan_idx];
err = asus_wmi_evaluate_method_buf(asus->dsts_id, fan_dev, mode, buf,
FAN_CURVE_BUF_LEN);
if (err)
if (err) {
pr_warn("%s (0x%08x) failed: %d\n", __func__, fan_dev, err);
return err;
}
fan_curve_copy_from_buf(curves, buf);
curves->device_id = fan_dev;
@ -2402,9 +2404,6 @@ static int fan_curve_check_present(struct asus_wmi *asus, bool *available,
err = fan_curve_get_factory_default(asus, fan_dev);
if (err) {
pr_debug("fan_curve_get_factory_default(0x%08x) failed: %d\n",
fan_dev, err);
/* Don't cause probe to fail on devices without fan-curves */
return 0;
}