Hi JoonYoung,
On 11/14/2014 02:12 PM, Joonyoung Shim wrote:
Hi,
On 11/14/2014 02:01 PM, YoungJun Cho wrote:
Hi JoonYoung,
On 11/14/2014 11:36 AM, Joonyoung Shim wrote:
The drm_handle_vblank should be called whenever be vsync, te interrupt
means vsync on i80 interface.
That's right.
Signed-off-by: Joonyoung Shim <jy0922.shim@xxxxxxxxxxx>
---
Based on lastest exynos-drm-next branch and patch of Youngjun Cho
("drm/exynos: fimd: move handle vblank position in TE handler").
drivers/gpu/drm/exynos/exynos_drm_fimd.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/exynos/exynos_drm_fimd.c b/drivers/gpu/drm/exynos/exynos_drm_fimd.c
index 033b18b..5cc57f7 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_fimd.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_fimd.c
@@ -984,7 +984,7 @@ static void fimd_te_handler(struct exynos_drm_manager *mgr)
wake_up(&ctx->wait_vsync_queue);
}
- if (!atomic_read(&ctx->triggering))
+ if (test_bit(0, &ctx->irq_flags))
drm_handle_vblank(ctx->drm_dev, ctx->pipe);
But after triggering, "fimd_irq_handler()" is called by "lcd_sys" interrupt and that calls "drm_handle_vblank()".
I missed the routine but i think drm_handle_vblank should be called by
vsync interrupt handler. As you know, fimd_irq_handler is not vsync
interrupt handler on i80 interface.
That sounds reasonable.
For that, we should modify "fimd_irq_handler()" not to call
"drm_handle_vblank()" in I80 interface.
Thank you.
Best regards YJ
So I think "fimd_te_handler()" calls "drm_handle_vblank()" only non-triggering condition.
Thank you.
Best regards YJ
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