* [PATCH -next v2 0/2] media: aspeed: refine mode detection flow
@ 2019-09-13 18:11 Jae Hyun Yoo
2019-09-13 18:11 ` [PATCH -next v2 1/2] media: aspeed: refine hsync/vsync polarity setting logic Jae Hyun Yoo
2019-09-13 18:11 ` [PATCH -next v2 2/2] media: aspeed: set hsync and vsync polarities to normal before starting mode detection Jae Hyun Yoo
0 siblings, 2 replies; 5+ messages in thread
From: Jae Hyun Yoo @ 2019-09-13 18:11 UTC (permalink / raw)
To: Eddie James, Mauro Carvalho Chehab, Joel Stanley, Andrew Jeffery
Cc: linux-aspeed, linux-media, openbmc, Jae Hyun Yoo
This patch series refines mode detection flow by fixing and refining of
hsync/vsync polarity setting register handling. Please review this change.
Thanks,
-Jae
Changes since v1:
* Updated commit message.
Jae Hyun Yoo (2):
media: aspeed: refine hsync/vsync polarity setting logic
media: aspeed: set hsync and vsync polarities to normal before
starting mode detection
drivers/media/platform/aspeed-video.c | 45 ++++++++++++++-------------
1 file changed, 23 insertions(+), 22 deletions(-)
--
2.23.0
^ permalink raw reply [flat|nested] 5+ messages in thread* [PATCH -next v2 1/2] media: aspeed: refine hsync/vsync polarity setting logic 2019-09-13 18:11 [PATCH -next v2 0/2] media: aspeed: refine mode detection flow Jae Hyun Yoo @ 2019-09-13 18:11 ` Jae Hyun Yoo 2019-10-09 13:54 ` Eddie James 2019-09-13 18:11 ` [PATCH -next v2 2/2] media: aspeed: set hsync and vsync polarities to normal before starting mode detection Jae Hyun Yoo 1 sibling, 1 reply; 5+ messages in thread From: Jae Hyun Yoo @ 2019-09-13 18:11 UTC (permalink / raw) To: Eddie James, Mauro Carvalho Chehab, Joel Stanley, Andrew Jeffery Cc: linux-aspeed, linux-media, openbmc, Jae Hyun Yoo To prevent inaccurate detections of resolution, this commit enables clearing of hsync/vsync polarity bits based on probed sync state. Signed-off-by: Jae Hyun Yoo <jae.hyun.yoo@linux.intel.com> --- Changes since v1: * Updated commit message. drivers/media/platform/aspeed-video.c | 43 +++++++++++++-------------- 1 file changed, 21 insertions(+), 22 deletions(-) diff --git a/drivers/media/platform/aspeed-video.c b/drivers/media/platform/aspeed-video.c index eb12f3793062..8f77079da55a 100644 --- a/drivers/media/platform/aspeed-video.c +++ b/drivers/media/platform/aspeed-video.c @@ -614,7 +614,7 @@ static void aspeed_video_check_and_set_polarity(struct aspeed_video *video) int i; int hsync_counter = 0; int vsync_counter = 0; - u32 sts; + u32 sts, ctrl; for (i = 0; i < NUM_POLARITY_CHECKS; ++i) { sts = aspeed_video_read(video, VE_MODE_DETECT_STATUS); @@ -629,30 +629,29 @@ static void aspeed_video_check_and_set_polarity(struct aspeed_video *video) hsync_counter++; } - if (hsync_counter < 0 || vsync_counter < 0) { - u32 ctrl = 0; + ctrl = aspeed_video_read(video, VE_CTRL); - if (hsync_counter < 0) { - ctrl = VE_CTRL_HSYNC_POL; - video->detected_timings.polarities &= - ~V4L2_DV_HSYNC_POS_POL; - } else { - video->detected_timings.polarities |= - V4L2_DV_HSYNC_POS_POL; - } - - if (vsync_counter < 0) { - ctrl = VE_CTRL_VSYNC_POL; - video->detected_timings.polarities &= - ~V4L2_DV_VSYNC_POS_POL; - } else { - video->detected_timings.polarities |= - V4L2_DV_VSYNC_POS_POL; - } + if (hsync_counter < 0) { + ctrl |= VE_CTRL_HSYNC_POL; + video->detected_timings.polarities &= + ~V4L2_DV_HSYNC_POS_POL; + } else { + ctrl &= ~VE_CTRL_HSYNC_POL; + video->detected_timings.polarities |= + V4L2_DV_HSYNC_POS_POL; + } - if (ctrl) - aspeed_video_update(video, VE_CTRL, 0, ctrl); + if (vsync_counter < 0) { + ctrl |= VE_CTRL_VSYNC_POL; + video->detected_timings.polarities &= + ~V4L2_DV_VSYNC_POS_POL; + } else { + ctrl &= ~VE_CTRL_VSYNC_POL; + video->detected_timings.polarities |= + V4L2_DV_VSYNC_POS_POL; } + + aspeed_video_write(video, VE_CTRL, ctrl); } static bool aspeed_video_alloc_buf(struct aspeed_video *video, -- 2.23.0 ^ permalink raw reply related [flat|nested] 5+ messages in thread
* Re: [PATCH -next v2 1/2] media: aspeed: refine hsync/vsync polarity setting logic 2019-09-13 18:11 ` [PATCH -next v2 1/2] media: aspeed: refine hsync/vsync polarity setting logic Jae Hyun Yoo @ 2019-10-09 13:54 ` Eddie James 0 siblings, 0 replies; 5+ messages in thread From: Eddie James @ 2019-10-09 13:54 UTC (permalink / raw) To: Jae Hyun Yoo, Eddie James, Mauro Carvalho Chehab, Joel Stanley, Andrew Jeffery Cc: openbmc, linux-aspeed, linux-media On 9/13/19 1:11 PM, Jae Hyun Yoo wrote: > To prevent inaccurate detections of resolution, this commit enables > clearing of hsync/vsync polarity bits based on probed sync state. Thanks Jae, looks fine. Reviewed-by: Eddie James <eajames@linux.ibm.com> > > Signed-off-by: Jae Hyun Yoo <jae.hyun.yoo@linux.intel.com> > --- > Changes since v1: > * Updated commit message. > > drivers/media/platform/aspeed-video.c | 43 +++++++++++++-------------- > 1 file changed, 21 insertions(+), 22 deletions(-) > > diff --git a/drivers/media/platform/aspeed-video.c b/drivers/media/platform/aspeed-video.c > index eb12f3793062..8f77079da55a 100644 > --- a/drivers/media/platform/aspeed-video.c > +++ b/drivers/media/platform/aspeed-video.c > @@ -614,7 +614,7 @@ static void aspeed_video_check_and_set_polarity(struct aspeed_video *video) > int i; > int hsync_counter = 0; > int vsync_counter = 0; > - u32 sts; > + u32 sts, ctrl; > > for (i = 0; i < NUM_POLARITY_CHECKS; ++i) { > sts = aspeed_video_read(video, VE_MODE_DETECT_STATUS); > @@ -629,30 +629,29 @@ static void aspeed_video_check_and_set_polarity(struct aspeed_video *video) > hsync_counter++; > } > > - if (hsync_counter < 0 || vsync_counter < 0) { > - u32 ctrl = 0; > + ctrl = aspeed_video_read(video, VE_CTRL); > > - if (hsync_counter < 0) { > - ctrl = VE_CTRL_HSYNC_POL; > - video->detected_timings.polarities &= > - ~V4L2_DV_HSYNC_POS_POL; > - } else { > - video->detected_timings.polarities |= > - V4L2_DV_HSYNC_POS_POL; > - } > - > - if (vsync_counter < 0) { > - ctrl = VE_CTRL_VSYNC_POL; > - video->detected_timings.polarities &= > - ~V4L2_DV_VSYNC_POS_POL; > - } else { > - video->detected_timings.polarities |= > - V4L2_DV_VSYNC_POS_POL; > - } > + if (hsync_counter < 0) { > + ctrl |= VE_CTRL_HSYNC_POL; > + video->detected_timings.polarities &= > + ~V4L2_DV_HSYNC_POS_POL; > + } else { > + ctrl &= ~VE_CTRL_HSYNC_POL; > + video->detected_timings.polarities |= > + V4L2_DV_HSYNC_POS_POL; > + } > > - if (ctrl) > - aspeed_video_update(video, VE_CTRL, 0, ctrl); > + if (vsync_counter < 0) { > + ctrl |= VE_CTRL_VSYNC_POL; > + video->detected_timings.polarities &= > + ~V4L2_DV_VSYNC_POS_POL; > + } else { > + ctrl &= ~VE_CTRL_VSYNC_POL; > + video->detected_timings.polarities |= > + V4L2_DV_VSYNC_POS_POL; > } > + > + aspeed_video_write(video, VE_CTRL, ctrl); > } > > static bool aspeed_video_alloc_buf(struct aspeed_video *video, ^ permalink raw reply [flat|nested] 5+ messages in thread
* [PATCH -next v2 2/2] media: aspeed: set hsync and vsync polarities to normal before starting mode detection 2019-09-13 18:11 [PATCH -next v2 0/2] media: aspeed: refine mode detection flow Jae Hyun Yoo 2019-09-13 18:11 ` [PATCH -next v2 1/2] media: aspeed: refine hsync/vsync polarity setting logic Jae Hyun Yoo @ 2019-09-13 18:11 ` Jae Hyun Yoo 2019-10-09 13:55 ` Eddie James 1 sibling, 1 reply; 5+ messages in thread From: Jae Hyun Yoo @ 2019-09-13 18:11 UTC (permalink / raw) To: Eddie James, Mauro Carvalho Chehab, Joel Stanley, Andrew Jeffery Cc: linux-aspeed, linux-media, openbmc, Jae Hyun Yoo Sometimes it detects a weird resolution such as 1024x287 when the actual resolution is 1024x768. To resolve such an issue, this commit adds clearing for hsync and vsync polarity register bits at the beginning of the first mode detection. This is recommended in the datasheet. Signed-off-by: Jae Hyun Yoo <jae.hyun.yoo@linux.intel.com> --- Changes since v1: None drivers/media/platform/aspeed-video.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/media/platform/aspeed-video.c b/drivers/media/platform/aspeed-video.c index 8f77079da55a..929b3a5b8849 100644 --- a/drivers/media/platform/aspeed-video.c +++ b/drivers/media/platform/aspeed-video.c @@ -740,6 +740,8 @@ static void aspeed_video_get_resolution(struct aspeed_video *video) } set_bit(VIDEO_RES_DETECT, &video->flags); + aspeed_video_update(video, VE_CTRL, + VE_CTRL_VSYNC_POL | VE_CTRL_HSYNC_POL, 0); aspeed_video_enable_mode_detect(video); rc = wait_event_interruptible_timeout(video->wait, -- 2.23.0 ^ permalink raw reply related [flat|nested] 5+ messages in thread
* Re: [PATCH -next v2 2/2] media: aspeed: set hsync and vsync polarities to normal before starting mode detection 2019-09-13 18:11 ` [PATCH -next v2 2/2] media: aspeed: set hsync and vsync polarities to normal before starting mode detection Jae Hyun Yoo @ 2019-10-09 13:55 ` Eddie James 0 siblings, 0 replies; 5+ messages in thread From: Eddie James @ 2019-10-09 13:55 UTC (permalink / raw) To: Jae Hyun Yoo, Eddie James, Mauro Carvalho Chehab, Joel Stanley, Andrew Jeffery Cc: openbmc, linux-aspeed, linux-media On 9/13/19 1:11 PM, Jae Hyun Yoo wrote: > Sometimes it detects a weird resolution such as 1024x287 when the > actual resolution is 1024x768. To resolve such an issue, this > commit adds clearing for hsync and vsync polarity register bits > at the beginning of the first mode detection. This is recommended > in the datasheet. Reviewed-by: Eddie James <eajames@linux.ibm.com> > > Signed-off-by: Jae Hyun Yoo <jae.hyun.yoo@linux.intel.com> > --- > Changes since v1: > None > > drivers/media/platform/aspeed-video.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/drivers/media/platform/aspeed-video.c b/drivers/media/platform/aspeed-video.c > index 8f77079da55a..929b3a5b8849 100644 > --- a/drivers/media/platform/aspeed-video.c > +++ b/drivers/media/platform/aspeed-video.c > @@ -740,6 +740,8 @@ static void aspeed_video_get_resolution(struct aspeed_video *video) > } > > set_bit(VIDEO_RES_DETECT, &video->flags); > + aspeed_video_update(video, VE_CTRL, > + VE_CTRL_VSYNC_POL | VE_CTRL_HSYNC_POL, 0); > aspeed_video_enable_mode_detect(video); > > rc = wait_event_interruptible_timeout(video->wait, ^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2019-10-09 13:55 UTC | newest] Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2019-09-13 18:11 [PATCH -next v2 0/2] media: aspeed: refine mode detection flow Jae Hyun Yoo 2019-09-13 18:11 ` [PATCH -next v2 1/2] media: aspeed: refine hsync/vsync polarity setting logic Jae Hyun Yoo 2019-10-09 13:54 ` Eddie James 2019-09-13 18:11 ` [PATCH -next v2 2/2] media: aspeed: set hsync and vsync polarities to normal before starting mode detection Jae Hyun Yoo 2019-10-09 13:55 ` Eddie James
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