From: David Herrmann Date: Fri, 12 Jan 2018 11:04:45 +0000 (+0100) Subject: platform/x86: thinkpad_acpi: suppress warning about palm detection X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=48d441324a58460e201f15309edf2e082392170d;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git platform/x86: thinkpad_acpi: suppress warning about palm detection [ Upstream commit 587d8628fb71c3bfae29fb2bbe84c1478c59bac8 ] 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 Signed-off-by: David Herrmann Acked-by: Henrique de Moraes Holschuh Signed-off-by: Andy Shevchenko Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c index 2242d6035d9e..c407d52ef7cf 100644 --- a/drivers/platform/x86/thinkpad_acpi.c +++ b/drivers/platform/x86/thinkpad_acpi.c @@ -214,6 +214,10 @@ enum tpacpi_hkey_event_t { /* AC-related events */ TP_HKEY_EV_AC_CHANGED = 0x6040, /* AC status changed */ + /* Further user-interface events */ + TP_HKEY_EV_PALM_DETECTED = 0x60b0, /* palm hoveres keyboard */ + TP_HKEY_EV_PALM_UNDETECTED = 0x60b1, /* palm removed */ + /* Misc */ TP_HKEY_EV_RFKILL_CHANGED = 0x7000, /* rfkill switch changed */ }; @@ -3973,6 +3977,12 @@ static bool hotkey_notify_6xxx(const u32 hkey, *send_acpi_ev = false; break; + case TP_HKEY_EV_PALM_DETECTED: + case TP_HKEY_EV_PALM_UNDETECTED: + /* palm detected hovering the keyboard, forward to user-space + * via netlink for consumption */ + return true; + default: pr_warn("unknown possible thermal alarm or keyboard event received\n"); known = false;