diff options
| author | Biju Das <biju.das.jz@bp.renesas.com> | 2026-03-30 11:44:44 +0100 |
|---|---|---|
| committer | Biju Das <biju.das.jz@bp.renesas.com> | 2026-04-16 06:54:09 +0100 |
| commit | 5bfa858d53bb252d7a012c2e0a97ae18182edfb1 (patch) | |
| tree | 9d4ead72124ccff65c4ac17ac0921bcca24a2ca8 | |
| parent | 2d1e82f1224f3109481bb0ed3683e54b09b978e3 (diff) | |
drm: renesas: rzg2l_mipi_dsi: Move rzg2l_mipi_dsi_set_display_timing()
The RZ/G2L hardware manual (Rev. 1.50, May 2025), Section 34.4.2.1,
requires display timings to be set after the HS clock is started. Move
rzg2l_mipi_dsi_set_display_timing() from
rzg2l_mipi_dsi_atomic_pre_enable() to rzg2l_mipi_dsi_atomic_enable(),
placing it after rzg2l_mipi_dsi_start_hs_clock(). Drop the unused ret
variable from rzg2l_mipi_dsi_atomic_pre_enable().
Fixes: 5ce16c169a4c ("drm: renesas: rz-du: Add atomic_pre_enable")
Fixes: 7a043f978ed1 ("drm: rcar-du: Add RZ/G2L DSI driver")
Cc: stable@vger.kernel.org
Reviewed-by: Tommaso Merciai <tommaso.merciai.xr@bp.renesas.com>
Tested-by: Tommaso Merciai <tommaso.merciai.xr@bp.renesas.com>
Link: https://patch.msgid.link/20260330104450.128512-2-biju.das.jz@bp.renesas.com
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
| -rw-r--r-- | drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c b/drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c index a87a301326c7..ff95cb9a7de5 100644 --- a/drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c +++ b/drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c @@ -1025,29 +1025,33 @@ static void rzg2l_mipi_dsi_atomic_pre_enable(struct drm_bridge *bridge, const struct drm_display_mode *mode; struct drm_connector *connector; struct drm_crtc *crtc; - int ret; connector = drm_atomic_get_new_connector_for_encoder(state, bridge->encoder); crtc = drm_atomic_get_new_connector_state(state, connector)->crtc; mode = &drm_atomic_get_new_crtc_state(state, crtc)->adjusted_mode; - ret = rzg2l_mipi_dsi_startup(dsi, mode); - if (ret < 0) - return; - - rzg2l_mipi_dsi_set_display_timing(dsi, mode); + rzg2l_mipi_dsi_startup(dsi, mode); } static void rzg2l_mipi_dsi_atomic_enable(struct drm_bridge *bridge, struct drm_atomic_state *state) { struct rzg2l_mipi_dsi *dsi = bridge_to_rzg2l_mipi_dsi(bridge); + const struct drm_display_mode *mode; + struct drm_connector *connector; + struct drm_crtc *crtc; int ret; ret = rzg2l_mipi_dsi_start_hs_clock(dsi); if (ret < 0) goto err_stop; + connector = drm_atomic_get_new_connector_for_encoder(state, bridge->encoder); + crtc = drm_atomic_get_new_connector_state(state, connector)->crtc; + mode = &drm_atomic_get_new_crtc_state(state, crtc)->adjusted_mode; + + rzg2l_mipi_dsi_set_display_timing(dsi, mode); + ret = rzg2l_mipi_dsi_start_video(dsi); if (ret < 0) goto err_stop_clock; |