[PATCH v4 0/1] drm/bridge: it6505: fix hibernate to resume no display issue
kuro
kuro.chung at ite.com.tw
Fri Mar 8 09:05:46 UTC 2024
From: Kuro Chung <kuro.chung at ite.com.tw>
New patch description for v4 patch
update by reviewer Pin-yen Lin comment, remove function it6505_irq_video_fifo_error/it6505_irq_io_latch_fifo_overflow
update by reviewer Pin-yen Lin comment, update Signed-off-by column
New patch description for v3 patch
update upstream MAINTAINERS mail list
New patch description for v2 patch
Missing declaration for i variable in function it6505_irq_video_error_handler
, add it by this patch
Origianl description for v1 patch
drm/bridge: it6505: fix hibernate to resume no display issue
ITE added a FIFO reset bit for input video. When system power resume,
the TTL input of it6505 may get some noise before video signal stable
and the hardware function reset is required.
But the input FIFO reset will also trigger error interrupts of output module rising.
Thus, it6505 have to wait a period can clear those expected error interrupts
caused by manual hardware reset in one interrupt handler calling to avoid interrupt looping.
allen (1):
UPSTREAM: drm/bridge: it6505: fix hibernate to resume no display issue
drivers/gpu/drm/bridge/ite-it6505.c | 50 ++++++++++++++++++++---------
1 file changed, 35 insertions(+), 15 deletions(-)
--
2.25.1
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