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Subject: media: rc: fix timeout handling after switch to microsecond durations Author: Matthias Reichl hias@horus.com Date: Tue Jan 5 10:30:23 2021 +0100
Commit 528222d853f92 ("media: rc: harmonize infrared durations to microseconds") missed to switch some timeout calculations from nanoseconds to microseconds. This resulted in spurious key_up+key_down events at the last scancode if the rc device uses a long timeout (eg 100ms on nuvoton-cir) as the device timeout wasn't properly accounted for in the keyup timeout calculation.
Fix this by applying the proper conversion functions.
Cc: stable@vger.kernel.org Fixes: 528222d853f92 ("media: rc: harmonize infrared durations to microseconds") Signed-off-by: Matthias Reichl hias@horus.com Signed-off-by: Sean Young sean@mess.org Signed-off-by: Mauro Carvalho Chehab mchehab+huawei@kernel.org
drivers/media/rc/ir-mce_kbd-decoder.c | 2 +- drivers/media/rc/rc-main.c | 4 ++-- drivers/media/rc/serial_ir.c | 2 +- 3 files changed, 4 insertions(+), 4 deletions(-)
---
diff --git a/drivers/media/rc/ir-mce_kbd-decoder.c b/drivers/media/rc/ir-mce_kbd-decoder.c index be8f2756a444..1524dc0fc566 100644 --- a/drivers/media/rc/ir-mce_kbd-decoder.c +++ b/drivers/media/rc/ir-mce_kbd-decoder.c @@ -320,7 +320,7 @@ again: data->body); spin_lock(&data->keylock); if (scancode) { - delay = nsecs_to_jiffies(dev->timeout) + + delay = usecs_to_jiffies(dev->timeout) + msecs_to_jiffies(100); mod_timer(&data->rx_timeout, jiffies + delay); } else { diff --git a/drivers/media/rc/rc-main.c b/drivers/media/rc/rc-main.c index 29d4d01896ff..1fd62c1dac76 100644 --- a/drivers/media/rc/rc-main.c +++ b/drivers/media/rc/rc-main.c @@ -737,7 +737,7 @@ static unsigned int repeat_period(int protocol) void rc_repeat(struct rc_dev *dev) { unsigned long flags; - unsigned int timeout = nsecs_to_jiffies(dev->timeout) + + unsigned int timeout = usecs_to_jiffies(dev->timeout) + msecs_to_jiffies(repeat_period(dev->last_protocol)); struct lirc_scancode sc = { .scancode = dev->last_scancode, .rc_proto = dev->last_protocol, @@ -855,7 +855,7 @@ void rc_keydown(struct rc_dev *dev, enum rc_proto protocol, u64 scancode, ir_do_keydown(dev, protocol, scancode, keycode, toggle);
if (dev->keypressed) { - dev->keyup_jiffies = jiffies + nsecs_to_jiffies(dev->timeout) + + dev->keyup_jiffies = jiffies + usecs_to_jiffies(dev->timeout) + msecs_to_jiffies(repeat_period(protocol)); mod_timer(&dev->timer_keyup, dev->keyup_jiffies); } diff --git a/drivers/media/rc/serial_ir.c b/drivers/media/rc/serial_ir.c index 8cc28c92d05d..96ae0294ac10 100644 --- a/drivers/media/rc/serial_ir.c +++ b/drivers/media/rc/serial_ir.c @@ -385,7 +385,7 @@ static irqreturn_t serial_ir_irq_handler(int i, void *blah) } while (!(sinp(UART_IIR) & UART_IIR_NO_INT)); /* still pending ? */
mod_timer(&serial_ir.timeout_timer, - jiffies + nsecs_to_jiffies(serial_ir.rcdev->timeout)); + jiffies + usecs_to_jiffies(serial_ir.rcdev->timeout));
ir_raw_event_handle(serial_ir.rcdev);