FROMLIST: drm/rockchip: vop: Don't reject empty modesets

So that when DRM_IOCTL_MODE_SETCRTC is called without a FB nor mode, the
CRTC gets disabled.

Link: http://lkml.kernel.org/g/CAAObsKAv+05ih5U+=4kic_NsjGMhfxYheHR8xXXmacZs+p5SHw@mail.gmail.com
(am from https://patchwork.kernel.org/patch/8618471/)

Change-Id: I3a36e20f727f2087d718acec886766b743de2d9b
Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Signed-off-by: Mark Yao <mark.yao@rock-chips.com>

diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
index 5ae7b2629d693abf7c84274d0a528e16260c4014..f36213c2e9a8c08be750bc8157559156ac20a3df 100644 (file)
--- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
@@ -905,9 +905,6 @@ static bool vop_crtc_mode_fixup(struct drm_crtc *crtc,
 {
        struct vop *vop = to_vop(crtc);
 
-       if (adjusted_mode->htotal == 0 || adjusted_mode->vtotal == 0)
-               return false;
-
        adjusted_mode->clock =
                clk_round_rate(vop->dclk, mode->clock * 1000) / 1000;