platform/x86: thinkpad_acpi: suppress warning about palm detection
[ Upstream commit 587d8628fb
]
This patch prevents the thinkpad_acpi driver from warning about 2 event
codes returned for keyboard palm-detection. No behavioral changes,
other than suppressing the warning in the kernel log. The events are
still forwarded via acpi-netlink channels.
We could, optionally, decide to forward the event through a
input-switch on the tpacpi input device. However, so far no suitable
input-code exists, and no similar drivers report such events. Hence,
leave it an acpi event for now.
Note that the event-codes are named based on empirical studies. On the
ThinkPad X1 5th Gen the sensor can be found underneath the arrow key.
Cc: Matthew Thode <mthode@mthode.org>
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Acked-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
pull/10/head
parent
b9d78055c6
commit
48d441324a
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@ -214,6 +214,10 @@ enum tpacpi_hkey_event_t {
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/* AC-related events */
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TP_HKEY_EV_AC_CHANGED = 0x6040, /* AC status changed */
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/* Further user-interface events */
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TP_HKEY_EV_PALM_DETECTED = 0x60b0, /* palm hoveres keyboard */
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TP_HKEY_EV_PALM_UNDETECTED = 0x60b1, /* palm removed */
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/* Misc */
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TP_HKEY_EV_RFKILL_CHANGED = 0x7000, /* rfkill switch changed */
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};
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@ -3973,6 +3977,12 @@ static bool hotkey_notify_6xxx(const u32 hkey,
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*send_acpi_ev = false;
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break;
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case TP_HKEY_EV_PALM_DETECTED:
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case TP_HKEY_EV_PALM_UNDETECTED:
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/* palm detected hovering the keyboard, forward to user-space
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* via netlink for consumption */
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return true;
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default:
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pr_warn("unknown possible thermal alarm or keyboard event received\n");
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known = false;
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