From d67ecfb4497148eb43784713d80e268e67cc60db Mon Sep 17 00:00:00 2001 From: Naushir Patuck Date: Tue, 30 Nov 2021 10:39:41 +0000 Subject: [PATCH 0321/1085] drivers: bcm2835_unicam: Add logging message when a frame is dropped. If a dummy buffer is still active on a frame start, it indicates that this frame will be dropped. The explicit logging helps users identify performance issues. Signed-off-by: Naushir Patuck --- drivers/media/platform/bcm2835/bcm2835-unicam.c | 3 +++ 1 file changed, 3 insertions(+) --- a/drivers/media/platform/bcm2835/bcm2835-unicam.c +++ b/drivers/media/platform/bcm2835/bcm2835-unicam.c @@ -951,6 +951,9 @@ static irqreturn_t unicam_isr(int irq, v if (unicam->node[i].cur_frm) unicam->node[i].cur_frm->vb.vb2_buf.timestamp = ts; + else + unicam_dbg(2, unicam, "ISR: [%d] Dropping frame, buffer not available at FS\n", + i); /* * Set the next frame output to go to a dummy frame * if we have not managed to obtain another frame