Re: [PATCH v8 0/1] drm/bridge: it6505: fix hibernate to resume no display issue

2024-05-15 Thread Markus Elfring
> New patch description for …

* How do you think about to omit a cover letter for a single patch?

* Would it be helpful to specify any email addresses in the message field “To”
  (besides “Cc”)?

Regards,
Markus


[PATCH v8 0/1] drm/bridge: it6505: fix hibernate to resume no display issue

2024-05-15 Thread kuro
From: Kuro 

New patch description for v8 patch 

resolve merge conflict

New patch description for v7 patch

modify code from
it6505_set_bits(it6505, REG_VID_BUS_CTRL1, TX_FIFO_RESET, 0x02); to
it6505_set_bits(it6505, REG_VID_BUS_CTRL1, TX_FIFO_RESET, 
TX_FIFO_RESET); for macro define

New patch description for v6 patch

remove the unrelated patch change (split into anoter patch)
remove extra line

New patch description for v5 patch

after customer feedback and test finished, update again, kernel build 
pass.

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.


Kuro Chung (1):
  drm/bridge: it6505: fix hibernate to resume no display issue

 drivers/gpu/drm/bridge/ite-it6505.c | 73 +++--
 1 file changed, 49 insertions(+), 24 deletions(-)

-- 
2.25.1