diff options
Diffstat (limited to 'drivers/platform/x86/asus-wmi.c')
| -rw-r--r-- | drivers/platform/x86/asus-wmi.c | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c index d72491fb218b..46d0dd96a351 100644 --- a/drivers/platform/x86/asus-wmi.c +++ b/drivers/platform/x86/asus-wmi.c @@ -231,6 +231,7 @@ struct asus_wmi { bool egpu_enable_available; bool dgpu_disable_available; + bool gpu_mux_mode_available; bool throttle_thermal_policy_available; u8 throttle_thermal_policy_mode; @@ -657,6 +658,52 @@ static ssize_t egpu_enable_store(struct device *dev, } static DEVICE_ATTR_RW(egpu_enable); +/* gpu mux switch *************************************************************/ +static ssize_t gpu_mux_mode_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_GPU_MUX); + if (result < 0) + return result; + + return sysfs_emit(buf, "%d\n", result); +} + +static ssize_t gpu_mux_mode_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 optimus; + + err = kstrtou32(buf, 10, &optimus); + if (err) + return err; + + if (optimus > 1) + return -EINVAL; + + err = asus_wmi_set_devstate(ASUS_WMI_DEVID_GPU_MUX, optimus, &result); + if (err) { + dev_err(dev, "Failed to set GPU MUX mode: %d\n", err); + return err; + } + /* !1 is considered a fail by ASUS */ + if (result != 1) { + dev_warn(dev, "Failed to set GPU MUX mode (result): 0x%x\n", result); + return -EIO; + } + + sysfs_notify(&asus->platform_device->dev.kobj, NULL, "gpu_mux_mode"); + + return count; +} +static DEVICE_ATTR_RW(gpu_mux_mode); + /* Battery ********************************************************************/ /* The battery maximum charging percentage */ @@ -3172,6 +3219,7 @@ static struct attribute *platform_attributes[] = { &dev_attr_touchpad.attr, &dev_attr_egpu_enable.attr, &dev_attr_dgpu_disable.attr, + &dev_attr_gpu_mux_mode.attr, &dev_attr_lid_resume.attr, &dev_attr_als_enable.attr, &dev_attr_fan_boost_mode.attr, @@ -3202,6 +3250,8 @@ static umode_t asus_sysfs_is_visible(struct kobject *kobj, ok = asus->egpu_enable_available; else if (attr == &dev_attr_dgpu_disable.attr) ok = asus->dgpu_disable_available; + else if (attr == &dev_attr_gpu_mux_mode.attr) + ok = asus->gpu_mux_mode_available; else if (attr == &dev_attr_fan_boost_mode.attr) ok = asus->fan_boost_mode_available; else if (attr == &dev_attr_throttle_thermal_policy.attr) @@ -3465,6 +3515,7 @@ static int asus_wmi_add(struct platform_device *pdev) asus->egpu_enable_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_EGPU); 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->panel_overdrive_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_PANEL_OD); err = fan_boost_mode_check_present(asus); |