[PATCH 4/7] drm/bridge: dw-mipi-dsi: Move PLL setup into atomic_enable

[Marek Vasut <marex@denx.de>]

The bridge clock configuration should happen in atomic_enable
instead of mode_set callback, since that is where the current
state of the bridge is available. Move the clock configuration
into atomic_enable callback.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Laurent Pinchart <Laurent.pinchart@ideasonboard.com>
Cc: Maxime Ripard <maxime@cerno.tech>
Cc: Neil Armstrong <narmstrong@baylibre.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
---
 drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c b/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c
index f4a6e4da903ca..7a2ea21dc0554 100644
--- a/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c
+++ b/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c
@@ -267,6 +267,8 @@ struct dw_mipi_dsi {
 	u32 format;
 	unsigned long mode_flags;
 
+	struct drm_display_mode mode;
+
 #ifdef CONFIG_DEBUG_FS
 	struct dentry *debugfs;
 	struct debugfs_entries *debugfs_vpg;
@@ -1045,15 +1047,18 @@ static void dw_mipi_dsi_bridge_mode_set(struct drm_bridge *bridge,
 {
 	struct dw_mipi_dsi *dsi = bridge_to_dsi(bridge);
 
-	dw_mipi_dsi_mode_set(dsi, adjusted_mode);
-	if (dsi->slave)
-		dw_mipi_dsi_mode_set(dsi->slave, adjusted_mode);
+	drm_mode_copy(&dsi->mode, adjusted_mode);
 }
 
 static void dw_mipi_dsi_bridge_atomic_enable(struct drm_bridge *bridge,
 					     struct drm_bridge_state *old_bridge_state)
 {
 	struct dw_mipi_dsi *dsi = bridge_to_dsi(bridge);
+	const struct drm_display_mode *adjusted_mode = &dsi->mode;
+
+	dw_mipi_dsi_mode_set(dsi, adjusted_mode);
+	if (dsi->slave)
+		dw_mipi_dsi_mode_set(dsi->slave, adjusted_mode);
 
 	/* Switch to video mode for panel-bridge enable & panel enable */
 	dw_mipi_dsi_set_mode(dsi, MIPI_DSI_MODE_VIDEO);
-- 
2.34.1