From: Hans de Goede hdegoede@redhat.com
[ Upstream commit 14c200b7ca46b9a9f4af9e81d258a58274320b6f ]
2 issues have been reported on the Dell Inspiron 7352:
1. Sometimes the tablet-mode-switch stops reporting tablet-mode change events.
Add a "VBDL" call to notify_handler() to work around this.
2. Sometimes the tablet-mode is incorrect after suspend/resume
Add a detect_tablet_mode() to resume() to fix this.
Reported-by: Arnold Gozum arngozum@gmail.com Closes: https://lore.kernel.org/platform-driver-x86/87271a74-c831-4eec-b7a4-1371d0e4... Tested-by: Arnold Gozum arngozum@gmail.com Signed-off-by: Hans de Goede hdegoede@redhat.com Reviewed-by: Andy Shevchenko andy@kernel.org Link: https://lore.kernel.org/r/20231204150601.46976-1-hdegoede@redhat.com Reviewed-by: Ilpo Järvinen ilpo.jarvinen@linux.intel.com Signed-off-by: Ilpo Järvinen ilpo.jarvinen@linux.intel.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/platform/x86/intel/vbtn.c | 19 +++++++++++++++---- 1 file changed, 15 insertions(+), 4 deletions(-)
diff --git a/drivers/platform/x86/intel/vbtn.c b/drivers/platform/x86/intel/vbtn.c index 15f013af9e623..f5e020840d947 100644 --- a/drivers/platform/x86/intel/vbtn.c +++ b/drivers/platform/x86/intel/vbtn.c @@ -73,10 +73,10 @@ struct intel_vbtn_priv { bool wakeup_mode; };
-static void detect_tablet_mode(struct platform_device *device) +static void detect_tablet_mode(struct device *dev) { - struct intel_vbtn_priv *priv = dev_get_drvdata(&device->dev); - acpi_handle handle = ACPI_HANDLE(&device->dev); + struct intel_vbtn_priv *priv = dev_get_drvdata(dev); + acpi_handle handle = ACPI_HANDLE(dev); unsigned long long vgbs; acpi_status status; int m; @@ -89,6 +89,8 @@ static void detect_tablet_mode(struct platform_device *device) input_report_switch(priv->switches_dev, SW_TABLET_MODE, m); m = (vgbs & VGBS_DOCK_MODE_FLAG) ? 1 : 0; input_report_switch(priv->switches_dev, SW_DOCK, m); + + input_sync(priv->switches_dev); }
/* @@ -134,7 +136,7 @@ static int intel_vbtn_input_setup(struct platform_device *device) priv->switches_dev->id.bustype = BUS_HOST;
if (priv->has_switches) { - detect_tablet_mode(device); + detect_tablet_mode(&device->dev);
ret = input_register_device(priv->switches_dev); if (ret) @@ -198,6 +200,9 @@ static void notify_handler(acpi_handle handle, u32 event, void *context) autorelease = val && (!ke_rel || ke_rel->type == KE_IGNORE);
sparse_keymap_report_event(input_dev, event, val, autorelease); + + /* Some devices need this to report further events */ + acpi_evaluate_object(handle, "VBDL", NULL, NULL); }
/* @@ -358,7 +363,13 @@ static void intel_vbtn_pm_complete(struct device *dev)
static int intel_vbtn_pm_resume(struct device *dev) { + struct intel_vbtn_priv *priv = dev_get_drvdata(dev); + intel_vbtn_pm_complete(dev); + + if (priv->has_switches) + detect_tablet_mode(dev); + return 0; }