media: aspeed: Fix no complete irq for non-64-aligned width

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>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>

diff --git a/drivers/media/platform/aspeed-video.c b/drivers/media/platform/aspeed-video.c
index 2effeff..63a6908 100644 (file)
--- a/drivers/media/platform/aspeed-video.c
+++ b/drivers/media/platform/aspeed-video.c
@@ -916,18 +916,19 @@ 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
+                * This is a workaround to fix a AST2500 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.
                 */
-               aspeed_video_write(video, VE_CAP_WINDOW,
-                                  1728 << 16 | act->height);
-               size += (1728 - 1680) * video->active_timings.height;
+               u32 width = ALIGN(act->width, 64);
+
+               aspeed_video_write(video, VE_CAP_WINDOW, width << 16 | act->height);
+               size = width * act->height;
        } else {
                aspeed_video_write(video, VE_CAP_WINDOW,
                                   act->width << 16 | act->height);