From 8a08f671f31c9bbcbe9d333632005e58162567ca Mon Sep 17 00:00:00 2001 From: Maciej Purski Date: Wed, 25 Jul 2018 17:46:38 +0200 Subject: [PATCH] drm/exynos: enable out_bridge in exynos_dsi_enable As the out bridge will not be enabled directly by the framework, it should be enabled by DSI. exynos_dsi_enable() should handle a case, when there is an out_bridge connected as a DSI peripheral. Changed in v5: - fixed error path in exynos_dsi_enable Signed-off-by: Maciej Purski [ a.hajda@samsung.com: v5 ] Signed-off-by: Andrzej Hajda Signed-off-by: Inki Dae --- drivers/gpu/drm/exynos/exynos_drm_dsi.c | 38 +++++++++++++++---------- 1 file changed, 23 insertions(+), 15 deletions(-) diff --git a/drivers/gpu/drm/exynos/exynos_drm_dsi.c b/drivers/gpu/drm/exynos/exynos_drm_dsi.c index 2a0b78014094..07af7758066d 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_dsi.c +++ b/drivers/gpu/drm/exynos/exynos_drm_dsi.c @@ -1383,29 +1383,37 @@ static void exynos_dsi_enable(struct drm_encoder *encoder) return; pm_runtime_get_sync(dsi->dev); - dsi->state |= DSIM_STATE_ENABLED; - ret = drm_panel_prepare(dsi->panel); - if (ret < 0) { - dsi->state &= ~DSIM_STATE_ENABLED; - pm_runtime_put_sync(dsi->dev); - return; + if (dsi->panel) { + ret = drm_panel_prepare(dsi->panel); + if (ret < 0) + goto err_put_sync; + } else { + drm_bridge_pre_enable(dsi->out_bridge); } exynos_dsi_set_display_mode(dsi); exynos_dsi_set_display_enable(dsi, true); - ret = drm_panel_enable(dsi->panel); - if (ret < 0) { - dsi->state &= ~DSIM_STATE_ENABLED; - exynos_dsi_set_display_enable(dsi, false); - drm_panel_unprepare(dsi->panel); - pm_runtime_put_sync(dsi->dev); - return; + if (dsi->panel) { + ret = drm_panel_enable(dsi->panel); + if (ret < 0) + goto err_display_disable; + } else { + drm_bridge_enable(dsi->out_bridge); } dsi->state |= DSIM_STATE_VIDOUT_AVAILABLE; + return; + +err_display_disable: + exynos_dsi_set_display_enable(dsi, false); + drm_panel_unprepare(dsi->panel); + +err_put_sync: + dsi->state &= ~DSIM_STATE_ENABLED; + pm_runtime_put(dsi->dev); } static void exynos_dsi_disable(struct drm_encoder *encoder) @@ -1418,11 +1426,11 @@ static void exynos_dsi_disable(struct drm_encoder *encoder) dsi->state &= ~DSIM_STATE_VIDOUT_AVAILABLE; drm_panel_disable(dsi->panel); + drm_bridge_disable(dsi->out_bridge); exynos_dsi_set_display_enable(dsi, false); drm_panel_unprepare(dsi->panel); - + drm_bridge_post_disable(dsi->out_bridge); dsi->state &= ~DSIM_STATE_ENABLED; - pm_runtime_put_sync(dsi->dev); } -- 2.30.2