[PATCH] drm/rockchip: vop: no need wait vblank on crtc enable
From: Mark Yao <hidden>
Date: 2017-02-20 08:30:05
Also in:
dri-devel, linux-rockchip, lkml
Subsystem:
arm/rockchip soc support, drm drivers, drm drivers and misc gpu patches, drm drivers for rockchip, the rest · Maintainers:
Heiko Stuebner, David Airlie, Simona Vetter, Maarten Lankhorst, Maxime Ripard, Thomas Zimmermann, Sandy Huang, Andy Yan, Linus Torvalds
Since atomic framework, crtc enable and disable are in pairs, no need to wait vblank. Signed-off-by: Mark Yao <redacted> --- drivers/gpu/drm/rockchip/rockchip_drm_vop.c | 36 ----------------------------- 1 file changed, 36 deletions(-)
diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
index 76c79ac..8dab2af 100644
--- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c@@ -900,42 +900,6 @@ static void vop_crtc_enable(struct drm_crtc *crtc) return; } - /* - * If dclk rate is zero, mean that scanout is stop, - * we don't need wait any more. - */ - if (clk_get_rate(vop->dclk)) { - /* - * Rk3288 vop timing register is immediately, when configure - * display timing on display time, may cause tearing. - * - * Vop standby will take effect at end of current frame, - * if dsp hold valid irq happen, it means standby complete. - * - * mode set: - * standby and wait complete --> |---- - * | display time - * |---- - * |---> dsp hold irq - * configure display timing --> | - * standby exit | - * | new frame start. - */ - - reinit_completion(&vop->dsp_hold_completion); - vop_dsp_hold_valid_irq_enable(vop); - - spin_lock(&vop->reg_lock); - - VOP_CTRL_SET(vop, standby, 1); - - spin_unlock(&vop->reg_lock); - - wait_for_completion(&vop->dsp_hold_completion); - - vop_dsp_hold_valid_irq_disable(vop); - } - pin_pol = BIT(DCLK_INVERT); pin_pol |= (adjusted_mode->flags & DRM_MODE_FLAG_NHSYNC) ? 0 : BIT(HSYNC_POSITIVE);
--
1.9.1