* [PATCH] media: aspeed: Fix no complete irq for non-64-aligned width
@ 2021-12-14 4:53 Jammy Huang
2022-01-12 0:51 ` Joel Stanley
0 siblings, 1 reply; 3+ messages in thread
From: Jammy Huang @ 2021-12-14 4:53 UTC (permalink / raw)
To: eajames, mchehab, joel, andrew, linux-media, openbmc,
linux-arm-kernel, linux-aspeed, linux-kernel
In ast2500, engine will stop occasionally for 1360x768.
This is a bug which has been addressed, but the workaround is specific
for 1680 only. Here we make it more complete.
Signed-off-by: Jammy Huang <jammy_huang@aspeedtech.com>
---
drivers/media/platform/aspeed-video.c | 12 +++++++-----
1 file changed, 7 insertions(+), 5 deletions(-)
diff --git a/drivers/media/platform/aspeed-video.c b/drivers/media/platform/aspeed-video.c
index 793b2adaa0f5..4d3e6b105d44 100644
--- a/drivers/media/platform/aspeed-video.c
+++ b/drivers/media/platform/aspeed-video.c
@@ -1055,18 +1055,20 @@ static void aspeed_video_set_resolution(struct aspeed_video *video)
/* Set capture/compression frame sizes */
aspeed_video_calc_compressed_size(video, size);
- if (video->active_timings.width == 1680) {
+ if (!IS_ALIGNED(act->width, 64)) {
/*
* This is a workaround to fix a silicon bug on A1 and A2
* revisions. Since it doesn't break capturing operation of
* other revisions, use it for all revisions without checking
- * the revision ID. It picked 1728 which is a very next
- * 64-pixels aligned value to 1680 to minimize memory bandwidth
+ * the revision ID. It picked new width which is a very next
+ * 64-pixels aligned value to minimize memory bandwidth
* and to get better access speed from video engine.
*/
+ u32 width = ALIGN(act->width, 64);
+
aspeed_video_write(video, VE_CAP_WINDOW,
- 1728 << 16 | act->height);
- size += (1728 - 1680) * video->active_timings.height;
+ width << 16 | act->height);
+ size = width * act->height;
} else {
aspeed_video_write(video, VE_CAP_WINDOW,
act->width << 16 | act->height);
--
2.25.1
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH] media: aspeed: Fix no complete irq for non-64-aligned width
2021-12-14 4:53 [PATCH] media: aspeed: Fix no complete irq for non-64-aligned width Jammy Huang
@ 2022-01-12 0:51 ` Joel Stanley
2022-01-12 6:05 ` Jammy Huang
0 siblings, 1 reply; 3+ messages in thread
From: Joel Stanley @ 2022-01-12 0:51 UTC (permalink / raw)
To: Jammy Huang
Cc: Eddie James, Mauro Carvalho Chehab, Andrew Jeffery, linux-media,
OpenBMC Maillist, Linux ARM, linux-aspeed,
Linux Kernel Mailing List
On Tue, 14 Dec 2021 at 04:53, Jammy Huang <jammy_huang@aspeedtech.com> wrote:
>
> In ast2500, engine will stop occasionally for 1360x768.
>
> This is a bug which has been addressed, but the workaround is specific
> for 1680 only. Here we make it more complete.
>
> Signed-off-by: Jammy Huang <jammy_huang@aspeedtech.com>
> ---
> drivers/media/platform/aspeed-video.c | 12 +++++++-----
> 1 file changed, 7 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/media/platform/aspeed-video.c b/drivers/media/platform/aspeed-video.c
> index 793b2adaa0f5..4d3e6b105d44 100644
> --- a/drivers/media/platform/aspeed-video.c
> +++ b/drivers/media/platform/aspeed-video.c
> @@ -1055,18 +1055,20 @@ static void aspeed_video_set_resolution(struct aspeed_video *video)
> /* Set capture/compression frame sizes */
> aspeed_video_calc_compressed_size(video, size);
>
> - if (video->active_timings.width == 1680) {
> + if (!IS_ALIGNED(act->width, 64)) {
> /*
> * This is a workaround to fix a silicon bug on A1 and A2
Please add: "a AST2500 silicon bug" so we know which A1/A2 this is
referring to.
With that added, you can add:
Reviewed-by: Joel Stanley <joel@jms.id.au>
> * revisions. Since it doesn't break capturing operation of
> * other revisions, use it for all revisions without checking
> - * the revision ID. It picked 1728 which is a very next
> - * 64-pixels aligned value to 1680 to minimize memory bandwidth
> + * the revision ID. It picked new width which is a very next
> + * 64-pixels aligned value to minimize memory bandwidth
> * and to get better access speed from video engine.
> */
> + u32 width = ALIGN(act->width, 64);
> +
> aspeed_video_write(video, VE_CAP_WINDOW,
> - 1728 << 16 | act->height);
> - size += (1728 - 1680) * video->active_timings.height;
> + width << 16 | act->height);
> + size = width * act->height;
You could make it clearer by putting the write on one line:
aspeed_video_write(video, VE_CAP_WINDOW, width << 16 |
act->height);
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH] media: aspeed: Fix no complete irq for non-64-aligned width
2022-01-12 0:51 ` Joel Stanley
@ 2022-01-12 6:05 ` Jammy Huang
0 siblings, 0 replies; 3+ messages in thread
From: Jammy Huang @ 2022-01-12 6:05 UTC (permalink / raw)
To: Joel Stanley
Cc: Eddie James, Mauro Carvalho Chehab, Andrew Jeffery, linux-media,
OpenBMC Maillist, Linux ARM, linux-aspeed,
Linux Kernel Mailing List
Hi Joel,
OK, thanks for your review. I will send another updated patch per your
advice.
On 2022/1/12 上午 08:51, Joel Stanley wrote:
> On Tue, 14 Dec 2021 at 04:53, Jammy Huang <jammy_huang@aspeedtech.com> wrote:
>> In ast2500, engine will stop occasionally for 1360x768.
>>
>> This is a bug which has been addressed, but the workaround is specific
>> for 1680 only. Here we make it more complete.
>>
>> Signed-off-by: Jammy Huang <jammy_huang@aspeedtech.com>
>> ---
>> drivers/media/platform/aspeed-video.c | 12 +++++++-----
>> 1 file changed, 7 insertions(+), 5 deletions(-)
>>
>> diff --git a/drivers/media/platform/aspeed-video.c b/drivers/media/platform/aspeed-video.c
>> index 793b2adaa0f5..4d3e6b105d44 100644
>> --- a/drivers/media/platform/aspeed-video.c
>> +++ b/drivers/media/platform/aspeed-video.c
>> @@ -1055,18 +1055,20 @@ static void aspeed_video_set_resolution(struct aspeed_video *video)
>> /* Set capture/compression frame sizes */
>> aspeed_video_calc_compressed_size(video, size);
>>
>> - if (video->active_timings.width == 1680) {
>> + if (!IS_ALIGNED(act->width, 64)) {
>> /*
>> * This is a workaround to fix a silicon bug on A1 and A2
> Please add: "a AST2500 silicon bug" so we know which A1/A2 this is
> referring to.
>
> With that added, you can add:
>
> Reviewed-by: Joel Stanley <joel@jms.id.au>
>
>> * revisions. Since it doesn't break capturing operation of
>> * other revisions, use it for all revisions without checking
>> - * the revision ID. It picked 1728 which is a very next
>> - * 64-pixels aligned value to 1680 to minimize memory bandwidth
>> + * the revision ID. It picked new width which is a very next
>> + * 64-pixels aligned value to minimize memory bandwidth
>> * and to get better access speed from video engine.
>> */
>> + u32 width = ALIGN(act->width, 64);
>> +
>> aspeed_video_write(video, VE_CAP_WINDOW,
>> - 1728 << 16 | act->height);
>> - size += (1728 - 1680) * video->active_timings.height;
>> + width << 16 | act->height);
>> + size = width * act->height;
> You could make it clearer by putting the write on one line:
>
> aspeed_video_write(video, VE_CAP_WINDOW, width << 16 |
> act->height);
--
Best Regards
Jammy
^ permalink raw reply [flat|nested] 3+ messages in thread
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2021-12-14 4:53 [PATCH] media: aspeed: Fix no complete irq for non-64-aligned width Jammy Huang
2022-01-12 0:51 ` Joel Stanley
2022-01-12 6:05 ` Jammy Huang
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