From: Hans Verkuil <hansverk@xxxxxxxxx> This patch has been added to the 4.1 stable tree. If you have any objections, please let us know. =============== [ Upstream commit 0ba4581c84cfb39fd527f6b3457f1c97f6356c04 ] The 5 volt detect functionality broke in 3.14: the code reads IO register 0x70 again after it has already been cleared. Instead it should use the cached irq_reg_0x70 value and the io_write to 0x71 to clear 0x70 can be dropped since this has already been done. Signed-off-by: Hans Verkuil <hans.verkuil@xxxxxxxxx> Cc: <stable@xxxxxxxxxxxxxxx> # for v3.14 and up Signed-off-by: Mauro Carvalho Chehab <mchehab@xxxxxxxxxxxxxxx> Signed-off-by: Sasha Levin <sasha.levin@xxxxxxxxxx> --- drivers/media/i2c/adv7604.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/media/i2c/adv7604.c b/drivers/media/i2c/adv7604.c index 60ffcf0..5f92ec2 100644 --- a/drivers/media/i2c/adv7604.c +++ b/drivers/media/i2c/adv7604.c @@ -1911,10 +1911,9 @@ static int adv76xx_isr(struct v4l2_subdev *sd, u32 status, bool *handled) } /* tx 5v detect */ - tx_5v = io_read(sd, 0x70) & info->cable_det_mask; + tx_5v = irq_reg_0x70 & info->cable_det_mask; if (tx_5v) { v4l2_dbg(1, debug, sd, "%s: tx_5v: 0x%x\n", __func__, tx_5v); - io_write(sd, 0x71, tx_5v); adv76xx_s_detect_tx_5v_ctrl(sd); if (handled) *handled = true; -- 2.5.0 -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html