From: Mathew King mathewk@chromium.org
[ Upstream commit cb1921b17adbe6509538098ac431033378cd7165 ]
When a switch event, such as tablet mode/laptop mode or docked/undocked, wakes a device make sure that the value of the swich is reported. Without when a device is put in tablet mode from laptop mode when it is suspended or vice versa the device will wake up but mode will be incorrect.
Tested by suspending a device in laptop mode and putting it in tablet mode, the device resumes and is in tablet mode. When suspending the device in tablet mode and putting it in laptop mode the device resumes and is in laptop mode.
Signed-off-by: Mathew King mathewk@chromium.org Reviewed-by: Jett Rink jettrink@chromium.org Reviewed-by: Mario Limonciello mario.limonciello@dell.com Signed-off-by: Andy Shevchenko andriy.shevchenko@linux.intel.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/platform/x86/intel-vbtn.c | 16 ++++++++++++++-- 1 file changed, 14 insertions(+), 2 deletions(-)
diff --git a/drivers/platform/x86/intel-vbtn.c b/drivers/platform/x86/intel-vbtn.c index 06cd7e818ed5..a0d0cecff55f 100644 --- a/drivers/platform/x86/intel-vbtn.c +++ b/drivers/platform/x86/intel-vbtn.c @@ -76,12 +76,24 @@ static void notify_handler(acpi_handle handle, u32 event, void *context) struct platform_device *device = context; struct intel_vbtn_priv *priv = dev_get_drvdata(&device->dev); unsigned int val = !(event & 1); /* Even=press, Odd=release */ - const struct key_entry *ke_rel; + const struct key_entry *ke, *ke_rel; bool autorelease;
if (priv->wakeup_mode) { - if (sparse_keymap_entry_from_scancode(priv->input_dev, event)) { + ke = sparse_keymap_entry_from_scancode(priv->input_dev, event); + if (ke) { pm_wakeup_hard_event(&device->dev); + + /* + * Switch events like tablet mode will wake the device + * and report the new switch position to the input + * subsystem. + */ + if (ke->type == KE_SW) + sparse_keymap_report_event(priv->input_dev, + event, + val, + 0); return; } goto out_unknown;