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| author |   Andrzej Hajda <a.hajda@samsung.com> | 2015-07-09 08:25:40 +0200 |
|---|---|---|
| committer |   Inki Dae <inki.dae@samsung.com> | 2015-08-11 17:21:35 +0900 |
| commit | 4f98f9446f0ec9bc7d1e9274a74e58b04ae48ead (patch) | |
| tree | a610b89b4669aa416b660ad96e851d4f4f52973c /drivers/gpu | |
| parent | drm/exynos/mixer: fix interrupt clearing (diff) | |
| download | linux-dev-4f98f9446f0ec9bc7d1e9274a74e58b04ae48ead.tar.xz linux-dev-4f98f9446f0ec9bc7d1e9274a74e58b04ae48ead.zip | |
drm/exynos/mixer: correct vsync configuration sequence
Specification advises to clear vsync indicator before configuring vsync.
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Reviewed-by: Joonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/exynos/exynos_mixer.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/gpu/drm/exynos/exynos_mixer.c b/drivers/gpu/drm/exynos/exynos_mixer.c index 25f0aac01a89..923aa75143bf 100644 --- a/drivers/gpu/drm/exynos/exynos_mixer.c +++ b/drivers/gpu/drm/exynos/exynos_mixer.c @@ -906,8 +906,8 @@ static int mixer_enable_vblank(struct exynos_drm_crtc *crtc) } /* enable vsync interrupt */ - mixer_reg_writemask(res, MXR_INT_EN, MXR_INT_EN_VSYNC, - MXR_INT_EN_VSYNC); + mixer_reg_writemask(res, MXR_INT_STATUS, ~0, MXR_INT_CLEAR_VSYNC); + mixer_reg_writemask(res, MXR_INT_EN, ~0, MXR_INT_EN_VSYNC); return 0; } @@ -918,6 +918,7 @@ static void mixer_disable_vblank(struct exynos_drm_crtc *crtc) struct mixer_resources *res = &mixer_ctx->mixer_res; /* disable vsync interrupt */ + mixer_reg_writemask(res, MXR_INT_STATUS, ~0, MXR_INT_CLEAR_VSYNC); mixer_reg_writemask(res, MXR_INT_EN, 0, MXR_INT_EN_VSYNC); } @@ -1046,6 +1047,8 @@ static void mixer_enable(struct exynos_drm_crtc *crtc) mixer_reg_writemask(res, MXR_STATUS, ~0, MXR_STATUS_SOFT_RESET); + if (ctx->int_en & MXR_INT_EN_VSYNC) + mixer_reg_writemask(res, MXR_INT_STATUS, ~0, MXR_INT_CLEAR_VSYNC); mixer_reg_write(res, MXR_INT_EN, ctx->int_en); mixer_win_reset(ctx); } |