.atomic_destroy_state = drm_atomic_helper_crtc_destroy_state,
};
+static enum drm_mode_status arc_pgu_crtc_mode_valid(struct drm_crtc *crtc,
+ const struct drm_display_mode *mode)
+{
+ struct arcpgu_drm_private *arcpgu = crtc_to_arcpgu_priv(crtc);
+ long rate, clk_rate = mode->clock * 1000;
+ long diff = clk_rate / 200; /* +-0.5% allowed by HDMI spec */
+
+ rate = clk_round_rate(arcpgu->clk, clk_rate);
+ if ((max(rate, clk_rate) - min(rate, clk_rate) < diff) && (rate > 0))
+ return MODE_OK;
+
+ return MODE_NOCLOCK;
+}
+
static void arc_pgu_crtc_mode_set_nofb(struct drm_crtc *crtc)
{
struct arcpgu_drm_private *arcpgu = crtc_to_arcpgu_priv(crtc);
clk_set_rate(arcpgu->clk, m->crtc_clock * 1000);
}
-static void arc_pgu_crtc_enable(struct drm_crtc *crtc)
+static void arc_pgu_crtc_atomic_enable(struct drm_crtc *crtc,
+ struct drm_crtc_state *old_state)
{
struct arcpgu_drm_private *arcpgu = crtc_to_arcpgu_priv(crtc);
ARCPGU_CTRL_ENABLE_MASK);
}
-static void arc_pgu_crtc_disable(struct drm_crtc *crtc)
+static void arc_pgu_crtc_atomic_disable(struct drm_crtc *crtc,
+ struct drm_crtc_state *old_state)
{
struct arcpgu_drm_private *arcpgu = crtc_to_arcpgu_priv(crtc);
~ARCPGU_CTRL_ENABLE_MASK);
}
-static int arc_pgu_crtc_atomic_check(struct drm_crtc *crtc,
- struct drm_crtc_state *state)
-{
- struct arcpgu_drm_private *arcpgu = crtc_to_arcpgu_priv(crtc);
- struct drm_display_mode *mode = &state->adjusted_mode;
- long rate, clk_rate = mode->clock * 1000;
-
- rate = clk_round_rate(arcpgu->clk, clk_rate);
- if (rate != clk_rate)
- return -EINVAL;
-
- return 0;
-}
-
static void arc_pgu_crtc_atomic_begin(struct drm_crtc *crtc,
struct drm_crtc_state *state)
{
}
static const struct drm_crtc_helper_funcs arc_pgu_crtc_helper_funcs = {
+ .mode_valid = arc_pgu_crtc_mode_valid,
.mode_set = drm_helper_crtc_mode_set,
.mode_set_base = drm_helper_crtc_mode_set_base,
.mode_set_nofb = arc_pgu_crtc_mode_set_nofb,
- .enable = arc_pgu_crtc_enable,
- .disable = arc_pgu_crtc_disable,
- .prepare = arc_pgu_crtc_disable,
- .commit = arc_pgu_crtc_enable,
- .atomic_check = arc_pgu_crtc_atomic_check,
.atomic_begin = arc_pgu_crtc_atomic_begin,
+ .atomic_enable = arc_pgu_crtc_atomic_enable,
+ .atomic_disable = arc_pgu_crtc_atomic_disable,
};
static void arc_pgu_plane_atomic_update(struct drm_plane *plane,