drm: Convert atomic drivers from CRTC .disable() to .atomic_disable()

The CRTC .disable() helper operation is deprecated for atomic drivers,
the new .atomic_disable() helper operation being preferred. Convert all
atomic drivers to .atomic_disable() to avoid cargo-cult use of
.disable() in new drivers.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> # for sun4i
Acked-by: Philipp Zabel <p.zabel@pengutronix.de> # for mediatek
Acked-by: Alexey Brodkin <abrodkin@synopsys.com> # for arcpgu
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com> # for atmel-hlcdc
Tested-by: Philippe Cornu <philippe.cornu@st.com> # for stm
Acked-by: Philippe Cornu <philippe.cornu@st.com> # for stm
Acked-by: Vincent Abriou <vincent.abriou@st.com> # for sti
Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com> # for vmwgfx
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20170630093646.7928-3-laurent.pinchart+renesas@ideasonboard.com
diff --git a/drivers/gpu/drm/arm/hdlcd_crtc.c b/drivers/gpu/drm/arm/hdlcd_crtc.c
index 2b7f4f0..16e1e20 100644
--- a/drivers/gpu/drm/arm/hdlcd_crtc.c
+++ b/drivers/gpu/drm/arm/hdlcd_crtc.c
@@ -176,7 +176,8 @@ static void hdlcd_crtc_atomic_enable(struct drm_crtc *crtc,
 	drm_crtc_vblank_on(crtc);
 }
 
-static void hdlcd_crtc_disable(struct drm_crtc *crtc)
+static void hdlcd_crtc_atomic_disable(struct drm_crtc *crtc,
+				      struct drm_crtc_state *old_state)
 {
 	struct hdlcd_drm_private *hdlcd = crtc_to_hdlcd_priv(crtc);
 
@@ -219,10 +220,10 @@ static void hdlcd_crtc_atomic_begin(struct drm_crtc *crtc,
 }
 
 static const struct drm_crtc_helper_funcs hdlcd_crtc_helper_funcs = {
-	.disable	= hdlcd_crtc_disable,
 	.atomic_check	= hdlcd_crtc_atomic_check,
 	.atomic_begin	= hdlcd_crtc_atomic_begin,
 	.atomic_enable	= hdlcd_crtc_atomic_enable,
+	.atomic_disable	= hdlcd_crtc_atomic_disable,
 };
 
 static int hdlcd_plane_atomic_check(struct drm_plane *plane,