diff options
Diffstat (limited to '0101-asus-wmi-Add-panel-overdrive-functionality.patch')
| -rw-r--r-- | 0101-asus-wmi-Add-panel-overdrive-functionality.patch | 166 |
1 files changed, 166 insertions, 0 deletions
diff --git a/0101-asus-wmi-Add-panel-overdrive-functionality.patch b/0101-asus-wmi-Add-panel-overdrive-functionality.patch new file mode 100644 index 000000000000..9ee246ce3398 --- /dev/null +++ b/0101-asus-wmi-Add-panel-overdrive-functionality.patch @@ -0,0 +1,166 @@ +From 4fb0353bff3b881de7709b114d4607a0988c3420 Mon Sep 17 00:00:00 2001 +From: "Luke D. Jones" <luke@ljones.dev> +Date: Sat, 17 Jul 2021 20:13:21 +1200 +Subject: [PATCH 101/103] asus-wmi: Add panel overdrive functionality + +Some ASUS ROG laptops have the ability to drive the display panel +a higher rate to eliminate or reduce ghosting. + +Signed-off-by: Luke D. Jones <luke@ljones.dev> +--- + drivers/platform/x86/asus-wmi.c | 91 ++++++++++++++++++++++ + include/linux/platform_data/x86/asus-wmi.h | 1 + + 2 files changed, 92 insertions(+) + +diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c +index ebaeb7bb80f5..cd881443bc2f 100644 +--- a/drivers/platform/x86/asus-wmi.c ++++ b/drivers/platform/x86/asus-wmi.c +@@ -216,6 +216,9 @@ struct asus_wmi { + // The RSOC controls the maximum charging percentage. + bool battery_rsoc_available; + ++ bool panel_overdrive_available; ++ bool panel_overdrive; ++ + struct hotplug_slot hotplug_slot; + struct mutex hotplug_lock; + struct mutex wmi_lock; +@@ -1221,6 +1224,86 @@ static int asus_wmi_rfkill_init(struct asus_wmi *asus) + return result; + } + ++/* Panel Overdrive ************************************************************/ ++static int panel_od_check_present(struct asus_wmi *asus) ++{ ++ u32 result; ++ int err; ++ ++ asus->panel_overdrive_available = false; ++ ++ err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_PANEL_OD, &result); ++ if (err) { ++ if (err == -ENODEV) ++ return 0; ++ return err; ++ } ++ ++ if (result & ASUS_WMI_DSTS_PRESENCE_BIT) { ++ asus->panel_overdrive_available = true; ++ asus->panel_overdrive = result & ASUS_WMI_DSTS_STATUS_BIT; ++ } ++ ++ return 0; ++} ++ ++static int panel_od_write(struct asus_wmi *asus) ++{ ++ int err; ++ u8 value; ++ u32 retval; ++ ++ value = asus->panel_overdrive; ++ ++ err = asus_wmi_set_devstate(ASUS_WMI_DEVID_PANEL_OD, value, &retval); ++ ++ if (err) { ++ pr_warn("Failed to set panel overdrive: %d\n", err); ++ return err; ++ } ++ ++ if (retval > 1 || retval < 0) { ++ pr_warn("Failed to set panel overdrive (retval): 0x%x\n", retval); ++ return -EIO; ++ } ++ ++ sysfs_notify(&asus->platform_device->dev.kobj, NULL, "panel_od"); ++ ++ return 0; ++} ++ ++static ssize_t panel_od_show(struct device *dev, ++ struct device_attribute *attr, char *buf) ++{ ++ struct asus_wmi *asus = dev_get_drvdata(dev); ++ bool mode = asus->panel_overdrive; ++ ++ return sysfs_emit(buf, "%d\n", mode); ++} ++ ++static ssize_t panel_od_store(struct device *dev, ++ struct device_attribute *attr, ++ const char *buf, size_t count) ++{ ++ int result; ++ bool overdrive; ++ struct asus_wmi *asus = dev_get_drvdata(dev); ++ ++ result = kstrtobool(buf, &overdrive); ++ if (result == -EINVAL) ++ return result; ++ ++ asus->panel_overdrive = overdrive; ++ result = panel_od_write(asus); ++ ++ if (result != 0) ++ return result; ++ ++ return count; ++} ++ ++static DEVICE_ATTR_RW(panel_od); ++ + /* Quirks *********************************************************************/ + + static void asus_wmi_set_xusb2pr(struct asus_wmi *asus) +@@ -2332,6 +2415,7 @@ static struct attribute *platform_attributes[] = { + &dev_attr_als_enable.attr, + &dev_attr_fan_boost_mode.attr, + &dev_attr_throttle_thermal_policy.attr, ++ &dev_attr_panel_od.attr, + NULL + }; + +@@ -2357,6 +2441,8 @@ static umode_t asus_sysfs_is_visible(struct kobject *kobj, + ok = asus->fan_boost_mode_available; + else if (attr == &dev_attr_throttle_thermal_policy.attr) + ok = asus->throttle_thermal_policy_available; ++ else if (attr == &dev_attr_panel_od.attr) ++ ok = asus->panel_overdrive_available; + + if (devid != -1) + ok = !(asus_wmi_get_devstate_simple(asus, devid) < 0); +@@ -2622,6 +2708,10 @@ static int asus_wmi_add(struct platform_device *pdev) + else + throttle_thermal_policy_set_default(asus); + ++ err = panel_od_check_present(asus); ++ if (err) ++ goto fail_panel_od; ++ + err = asus_wmi_sysfs_init(asus->platform_device); + if (err) + goto fail_sysfs; +@@ -2709,6 +2799,7 @@ static int asus_wmi_add(struct platform_device *pdev) + fail_throttle_thermal_policy: + fail_fan_boost_mode: + fail_platform: ++fail_panel_od: + kfree(asus); + return err; + } +diff --git a/include/linux/platform_data/x86/asus-wmi.h b/include/linux/platform_data/x86/asus-wmi.h +index 2f274cf52805..428aea701c7b 100644 +--- a/include/linux/platform_data/x86/asus-wmi.h ++++ b/include/linux/platform_data/x86/asus-wmi.h +@@ -61,6 +61,7 @@ + #define ASUS_WMI_DEVID_THROTTLE_THERMAL_POLICY 0x00120075 + + /* Misc */ ++#define ASUS_WMI_DEVID_PANEL_OD 0x00050019 + #define ASUS_WMI_DEVID_CAMERA 0x00060013 + #define ASUS_WMI_DEVID_LID_FLIP 0x00060062 + +-- +2.32.0 + |