linux-stable.git/drivers/platform, branch v6.1.4

platform/x86: x86-android-tablets: Add Advantech MICA-071 extra button

2023-01-07T10:11:43+00:00

[ Upstream commit b03ae77e7e057f4b3b858f10c840557e71448a91 ]

The Advantech MICA-071 is a standard Windows tablet, but it has an extra
"quick launch" button which is not described in the ACPI tables in anyway.

Use the x86-android-tablets infra to create a gpio-button device for this.

Signed-off-by: Hans de Goede 
Link: https://lore.kernel.org/r/20221127221928.123660-1-hdegoede@redhat.com
Signed-off-by: Sasha Levin

platform/x86: x86-android-tablets: Add Lenovo Yoga Tab 3 (YT3-X90F) charger + fuel-gauge data

2023-01-07T10:11:43+00:00

[ Upstream commit b6c14ff1deaafd30036ec36d5205acd5a578b1cd ]

The Lenovo Yoga Tab 3 (YT3-X90F) is an Intel Cherry Trail based tablet
which ships with Android as Factory OS. Its DSDT contains a bunch of I2C
devices which are not actually there, causing various resource conflicts.
Use acpi_quirk_skip_i2c_client_enumeration() to not enumerate these.

The YT3-X90F has quite a bit of exotic hardware, this adds initial
support by manually instantiating the i2c-clients for the 2 charger +
2 fuel-gauge chips used for the 2 batteries.

Support for other parts of the hw will be added by follow-up patches.

Signed-off-by: Hans de Goede 
Link: https://lore.kernel.org/r/20221127182458.104528-1-hdegoede@redhat.com
Signed-off-by: Sasha Levin

platform/x86: x86-android-tablets: Add Medion Lifetab S10346 data

2023-01-07T10:11:43+00:00

[ Upstream commit 902ce18ab1f4444ff9d49865bea35a07adcc03fd ]

The Medion Lifetab S10346 is a x86 ACPI tablet which ships with Android
x86 as factory OS. Its DSDT contains a bunch of I2C devices which are not
actually there, causing various resource conflicts. Enumeration of these
is skipped through the acpi_quirk_skip_i2c_client_enumeration().

Add support for manually instantiating the I2C devices which are
actually present on this tablet by adding the necessary device info to
the x86-android-tablets module.

Signed-off-by: Hans de Goede 
Reviewed-by: Andy Shevchenko 
Link: https://lore.kernel.org/r/20221208110224.107354-1-hdegoede@redhat.com
Signed-off-by: Sasha Levin

platform/x86: intel-uncore-freq: add Emerald Rapids support

2023-01-07T10:11:43+00:00

[ Upstream commit 9c252ecf30360cb7b4dbcc275aebe5642174fd39 ]

Make Intel uncore frequency driver support Emerald Rapids by adding its
CPU model to the match table.

Emerald Rapids uncore frequency control is the same as in Sapphire
Rapids.

Signed-off-by: Artem Bityutskiy 
Acked-by: Srinivas Pandruvada 
Acked-by: Hans de Goede 
Signed-off-by: Rafael J. Wysocki 
Signed-off-by: Sasha Levin

platform/x86: ideapad-laptop: Stop writing VPCCMD_W_TOUCHPAD at probe time

2023-01-07T10:11:43+00:00

[ Upstream commit a10ba160d427e78ffa2ab15a86cacaec291fa58a ]

Commit d69cd7eea93e ("platform/x86: ideapad-laptop: Disable touchpad_switch
for ELAN0634") from Janary 2021 added a flag hiding the touchpad sysfs-attr
and disabling ideapad_sync_touchpad_state() because some devices
"do not use EC to switch touchpad".

At the same time this added a write(VPCCMD_W_TOUCHPAD, 1) call at probe
time on these same devices. This seems to be copied from the rfkill code
which does something similar when hw rfkill support is disabled.

But for the rfkill code this is known to be necessary on some models,
where as for the touchpad control no motivation is given for doing this
and prior to this patch there were no reports of needing to do this.

So this seems unnecessary; and it is best to avoid poking the hardware
unnecessary to avoid unwanted side effects, so remove this.

Signed-off-by: Hans de Goede 
Reviewed-by: Jiaxun Yang 
Tested-by: Jiaxun Yang 
Tested-by: Maxim Mikityanskiy 
Link: https://lore.kernel.org/r/20221117110244.67811-6-hdegoede@redhat.com
Signed-off-by: Sasha Levin

platform/x86: ideapad-laptop: Send KEY_TOUCHPAD_TOGGLE on some models

2023-01-07T10:11:42+00:00

[ Upstream commit 5829f8a897e4f030cd2d32a930eea8954ab5dcd3 ]

On recent Ideapad models the EC does not control the touchpad at all,
so instead of sending KEY_TOUCHPAD_ON/ _OFF on touchpad toggle hotkey
events, ideapad-laptop should send KEY_TOUCHPAD_TOGGLE and let userspace
handle the toggling.

Check for this by checking if the value read from VPCCMD_R_TOUCHPAD
actually changes when receiving a touchpad-toggle hotkey event; and
if it does not change send KEY_TOUCHPAD_TOGGLE to userspace to let
userspace enable/disable the touchpad in software.

Note this also drops the priv->features.touchpad_ctrl_via_ec check from
ideapad_sync_touchpad_state() so that KEY_TOUCHPAD_TOGGLE will be send
on laptops where this is not set too. This can be safely dropped now
because the i8042_command(I8042_CMD_AUX_ENABLE/_DISABLE) call is now
guarded by its own feature flag.

Signed-off-by: Hans de Goede 
Reviewed-by: Jiaxun Yang 
Tested-by: Jiaxun Yang 
Tested-by: Maxim Mikityanskiy 
Link: https://lore.kernel.org/r/20221117110244.67811-5-hdegoede@redhat.com
Signed-off-by: Sasha Levin

platform/x86: ideapad-laptop: Only toggle ps2 aux port on/off on select models

2023-01-07T10:11:42+00:00

[ Upstream commit c69e7d843d2c34b80b8731a5dc57c34ea04a3edf ]

Recently there have been multiple patches to disable the ideapad-laptop's
touchpad control code, because it is causing issues on various laptops:

Commit d69cd7eea93e ("platform/x86: ideapad-laptop: Disable touchpad_switch for ELAN0634")
Commit a231224a601c ("platform/x86: ideapad-laptop: Disable touchpad_switch")

The turning on/off of the ps2 aux port was added specifically for
the IdeaPad Z570, where the EC does toggle the touchpad on/off LED and
toggles the value returned by reading VPCCMD_R_TOUCHPAD, but it does not
actually turn on/off the touchpad.

The ideapad-laptop code really should not be messing with the i8042
controller on all devices just for this special case.

Add a new ctrl_ps2_aux_port flag set based on a DMI based allow-list
for devices which need this workaround, populating it with just
the Ideapad Z570 for now.

This also adds a module parameter so that this behavior can easily
be enabled on other models which may need it.

Signed-off-by: Hans de Goede 
Reviewed-by: Jiaxun Yang 
Tested-by: Jiaxun Yang 
Tested-by: Maxim Mikityanskiy 
Link: https://lore.kernel.org/r/20221117110244.67811-4-hdegoede@redhat.com
Signed-off-by: Sasha Levin

platform/x86: ideapad-laptop: Do not send KEY_TOUCHPAD* events on probe / resume

2023-01-07T10:11:42+00:00

[ Upstream commit f4dd8c44bb831ff885680bc77111fa39c193a93f ]

The sending of KEY_TOUCHPAD* events is causing spurious touchpad OSD
showing on resume.

Disable the sending of events on probe / resume to fix this.

Signed-off-by: Hans de Goede 
Reviewed-by: Jiaxun Yang 
Tested-by: Jiaxun Yang 
Tested-by: Maxim Mikityanskiy 
Link: https://lore.kernel.org/r/20221117110244.67811-3-hdegoede@redhat.com
Signed-off-by: Sasha Levin

platform/x86: ideapad-laptop: Refactor ideapad_sync_touchpad_state()

2023-01-07T10:11:42+00:00

[ Upstream commit 289a59895e7a380cdc7fe2780d3073f4b9237020 ]

Add an error exit for read_ec_data() failing instead of putting the main
body in an if (success) block.

Signed-off-by: Hans de Goede 
Reviewed-by: Jiaxun Yang 
Tested-by: Jiaxun Yang 
Tested-by: Maxim Mikityanskiy 
Link: https://lore.kernel.org/r/20221117110244.67811-2-hdegoede@redhat.com
Signed-off-by: Sasha Levin

platform/x86: ideapad-laptop: support for more special keys in WMI

2023-01-07T10:11:42+00:00

[ Upstream commit f32e02417614d3588a3954dab2a70320c43d1010 ]

The event data of the WMI event 0xD0, which is assumed to be the
fn_lock, is used to indicate several special keys on newer Yoga 7/9
laptops.

The notify_id 0xD0 is non-unique in the DSDT of the Yoga 9 14IAP7, this
causes wmi_get_event_data() to report wrong values.
Port the ideapad-laptop WMI code to the wmi bus infrastructure which
does not suffer from the shortcomings of wmi_get_event_data().

Signed-off-by: Philipp Jungkamp 
Link: https://lore.kernel.org/r/20221116110647.3438-1-p.jungkamp@gmx.net
Reviewed-by: Hans de Goede 
Signed-off-by: Hans de Goede 
Signed-off-by: Sasha Levin