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Subject[PATCH 4.14 051/115] media: adv7842: when the EDID is cleared, unconfigure CEC as well
Date
[ Upstream commit ab83203e181015b099720aff43ffabc1812e0fb3 ]

When there is no EDID the CEC adapter should be unconfigured as
well. So call cec_phys_addr_invalidate() when this happens.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Cc: <stable@vger.kernel.org> # for v4.18 and up
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
---
drivers/media/i2c/adv7842.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/media/i2c/adv7842.c b/drivers/media/i2c/adv7842.c
index f9c23173c9fa0..dcce8d030e5db 100644
--- a/drivers/media/i2c/adv7842.c
+++ b/drivers/media/i2c/adv7842.c
@@ -799,8 +799,10 @@ static int edid_write_hdmi_segment(struct v4l2_subdev *sd, u8 port)
/* Disable I2C access to internal EDID ram from HDMI DDC ports */
rep_write_and_or(sd, 0x77, 0xf3, 0x00);

- if (!state->hdmi_edid.present)
+ if (!state->hdmi_edid.present) {
+ cec_phys_addr_invalidate(state->cec_adap);
return 0;
+ }

pa = cec_get_edid_phys_addr(edid, 256, &spa_loc);
err = cec_phys_addr_validate(pa, &pa, NULL);
--
2.20.1


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