diff options
| -rw-r--r-- | drivers/media/video/em28xx/em28xx-input.c | 33 |
1 files changed, 15 insertions, 18 deletions
diff --git a/drivers/media/video/em28xx/em28xx-input.c b/drivers/media/video/em28xx/em28xx-input.c index dd6d528..6759cd5 100644 --- a/drivers/media/video/em28xx/em28xx-input.c +++ b/drivers/media/video/em28xx/em28xx-input.c @@ -292,18 +292,15 @@ static void em28xx_ir_handle_key(struct em28xx_IR *ir) /* read the registers containing the IR status */ result = ir->get_key(ir, &poll_result); - if (result < 0) { + if (unlikely(result < 0)) { dprintk("ir->get_key() failed %d\n", result); return; } - dprintk("ir->get_key result tb=%02x rc=%02x lr=%02x data=%02x%02x\n", - poll_result.toggle_bit, poll_result.read_count, - ir->last_readcount, poll_result.rc_address, - poll_result.rc_data[0]); - - if (poll_result.read_count > 0 && - poll_result.read_count != ir->last_readcount) { + if (unlikely(poll_result.read_count != ir->last_readcount)) { + dprintk("%s: toggle: %d, count: %d, key 0x%02x%02x\n", __func__, + poll_result.toggle_bit, poll_result.read_count, + poll_result.rc_address, poll_result.rc_data[0]); if (ir->full_code) ir_keydown(ir->input, poll_result.rc_address << 8 | @@ -313,17 +310,17 @@ static void em28xx_ir_handle_key(struct em28xx_IR *ir) ir_keydown(ir->input, poll_result.rc_data[0], poll_result.toggle_bit); - } - if (ir->dev->chip_id == CHIP_ID_EM2874) - /* The em2874 clears the readcount field every time the - register is read. The em2860/2880 datasheet says that it - is supposed to clear the readcount, but it doesn't. So with - the em2874, we are looking for a non-zero read count as - opposed to a readcount that is incrementing */ - ir->last_readcount = 0; - else - ir->last_readcount = poll_result.read_count; + if (ir->dev->chip_id == CHIP_ID_EM2874) + /* The em2874 clears the readcount field every time the + register is read. The em2860/2880 datasheet says that it + is supposed to clear the readcount, but it doesn't. So with + the em2874, we are looking for a non-zero read count as + opposed to a readcount that is incrementing */ + ir->last_readcount = 0; + else + ir->last_readcount = poll_result.read_count; + } } static void em28xx_ir_work(struct work_struct *work) |