Hans Verkuil e949f61461 media: s5p-cec: add NACK detection support ... The s5p-cec driver returned CEC_TX_STATUS_ERROR for the NACK condition. Some digging into the datasheet uncovered the S5P_CEC_TX_STAT1 register where bit 0 indicates if the transmit was nacked or not. Use this to return the correct CEC_TX_STATUS_NACK status to userspace. This was the only driver that couldn't tell a NACK from another error, and that was very unusual. And a potential problem for applications as well. Tested with my Odroid-U3. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Acked-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Cc: <stable@vger.kernel.org> # for v4.12 and up Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>		2017-09-23 07:29:30 -04:00
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exynos_hdmi_cec.h	[media] s5p-cec: add cec-notifier support, move out of staging	2017-04-10 13:14:03 -03:00
exynos_hdmi_cecctrl.c	media: s5p-cec: add NACK detection support	2017-09-23 07:29:30 -04:00
Makefile	[media] s5p-cec: add cec-notifier support, move out of staging	2017-04-10 13:14:03 -03:00
regs-cec.h	[media] s5p-cec: add cec-notifier support, move out of staging	2017-04-10 13:14:03 -03:00
s5p_cec.c	media: s5p-cec: add NACK detection support	2017-09-23 07:29:30 -04:00
s5p_cec.h	media: s5p-cec: add NACK detection support	2017-09-23 07:29:30 -04:00