[PATCH 07/13] drm/bridge: lt9611: rework the mode_set function

[Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>]

The mode_set callback is deprectated for drm_bridges in favour of using
atomic_enable callback. Move corresponding code into the function
lt9611_bridge_atomic_enable() and turn lt9611_bridge_pre_enable() into
the proper atomic_pre_enable callback.

Reviewed-by: Neil Armstrong <neil.armstrong@xxxxxxxxxx>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
---
 drivers/gpu/drm/bridge/lontium-lt9611.c | 61 +++++++++++++++----------
 1 file changed, 36 insertions(+), 25 deletions(-)

diff --git a/drivers/gpu/drm/bridge/lontium-lt9611.c b/drivers/gpu/drm/bridge/lontium-lt9611.c
index 3b77238ca4af..1b65a573be27 100644
--- a/drivers/gpu/drm/bridge/lontium-lt9611.c
+++ b/drivers/gpu/drm/bridge/lontium-lt9611.c
@@ -713,6 +713,39 @@ lt9611_bridge_atomic_enable(struct drm_bridge *bridge,
 			    struct drm_bridge_state *old_bridge_state)
 {
 	struct lt9611 *lt9611 = bridge_to_lt9611(bridge);
+	struct drm_atomic_state *state = old_bridge_state->base.state;
+	struct drm_connector *connector;
+	struct drm_connector_state *conn_state;
+	struct drm_crtc_state *crtc_state;
+	struct drm_display_mode *mode;
+	struct hdmi_avi_infoframe avi_frame;
+	unsigned int postdiv;
+	int ret;
+
+	connector = drm_atomic_get_new_connector_for_encoder(state, bridge->encoder);
+	if (WARN_ON(!connector))
+		return;
+
+	conn_state = drm_atomic_get_new_connector_state(state, connector);
+	if (WARN_ON(!conn_state))
+		return;
+
+	crtc_state = drm_atomic_get_new_crtc_state(state, conn_state->crtc);
+	if (WARN_ON(!crtc_state))
+		return;
+
+	mode = &crtc_state->adjusted_mode;
+
+	lt9611_mipi_input_digital(lt9611, mode);
+	lt9611_pll_setup(lt9611, mode, &postdiv);
+	lt9611_mipi_video_setup(lt9611, mode);
+	lt9611_pcr_setup(lt9611, mode, postdiv);
+
+	ret = drm_hdmi_avi_infoframe_from_display_mode(&avi_frame,
+						       connector,
+						       mode);
+	if (!ret)
+		lt9611->vic = avi_frame.video_code;
 
 	if (lt9611_power_on(lt9611)) {
 		dev_err(lt9611->dev, "power on failed\n");
@@ -856,7 +889,8 @@ static enum drm_mode_status lt9611_bridge_mode_valid(struct drm_bridge *bridge,
 		return MODE_OK;
 }
 
-static void lt9611_bridge_pre_enable(struct drm_bridge *bridge)
+static void lt9611_bridge_atomic_pre_enable(struct drm_bridge *bridge,
+					    struct drm_bridge_state *old_bridge_state)
 {
 	struct lt9611 *lt9611 = bridge_to_lt9611(bridge);
 	static const struct reg_sequence reg_cfg[] = {
@@ -884,29 +918,6 @@ lt9611_bridge_atomic_post_disable(struct drm_bridge *bridge,
 	lt9611_sleep_setup(lt9611);
 }
 
-static void lt9611_bridge_mode_set(struct drm_bridge *bridge,
-				   const struct drm_display_mode *mode,
-				   const struct drm_display_mode *adj_mode)
-{
-	struct lt9611 *lt9611 = bridge_to_lt9611(bridge);
-	struct hdmi_avi_infoframe avi_frame;
-	unsigned int postdiv;
-	int ret;
-
-	lt9611_bridge_pre_enable(bridge);
-
-	lt9611_mipi_input_digital(lt9611, mode);
-	lt9611_pll_setup(lt9611, mode, &postdiv);
-	lt9611_mipi_video_setup(lt9611, mode);
-	lt9611_pcr_setup(lt9611, mode, postdiv);
-
-	ret = drm_hdmi_avi_infoframe_from_display_mode(&avi_frame,
-						       &lt9611->connector,
-						       mode);
-	if (!ret)
-		lt9611->vic = avi_frame.video_code;
-}
-
 static enum drm_connector_status lt9611_bridge_detect(struct drm_bridge *bridge)
 {
 	return __lt9611_detect(bridge_to_lt9611(bridge));
@@ -957,11 +968,11 @@ lt9611_atomic_get_input_bus_fmts(struct drm_bridge *bridge,
 static const struct drm_bridge_funcs lt9611_bridge_funcs = {
 	.attach = lt9611_bridge_attach,
 	.mode_valid = lt9611_bridge_mode_valid,
-	.mode_set = lt9611_bridge_mode_set,
 	.detect = lt9611_bridge_detect,
 	.get_edid = lt9611_bridge_get_edid,
 	.hpd_enable = lt9611_bridge_hpd_enable,
 
+	.atomic_pre_enable = lt9611_bridge_atomic_pre_enable,
 	.atomic_enable = lt9611_bridge_atomic_enable,
 	.atomic_disable = lt9611_bridge_atomic_disable,
 	.atomic_post_disable = lt9611_bridge_atomic_post_disable,
-- 
2.39.0