[PATCH v2 04/10] drm/exynos: add non-panel path to exynos_dsi_enable()
From: Maciej Purski <hidden>
Date: 2018-05-30 12:19:05
Also in:
dri-devel, linux-devicetree, linux-samsung-soc, lkml
Subsystem:
drm drivers, drm drivers for exynos, the rest · Maintainers:
David Airlie, Simona Vetter, Inki Dae, Seung-Woo Kim, Kyungmin Park, Linus Torvalds
As DSIM can now have a bridge connected as a peripheral, it should be possible to successfully enable exynos_dsi, when there is no panel provided. Signed-off-by: Maciej Purski <redacted> --- drivers/gpu/drm/exynos/exynos_drm_dsi.c | 26 ++++++++++++-------------- 1 file changed, 12 insertions(+), 14 deletions(-)
diff --git a/drivers/gpu/drm/exynos/exynos_drm_dsi.c b/drivers/gpu/drm/exynos/exynos_drm_dsi.c
index 7b50bad..7f6a0b1 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_dsi.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_dsi.c@@ -1382,27 +1382,25 @@ static void exynos_dsi_enable(struct drm_encoder *encoder) if (dsi->state & DSIM_STATE_ENABLED) 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; - return; + if (dsi->panel) { + ret = drm_panel_prepare(dsi->panel); + if (ret < 0) + return; } 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); - return; + if (dsi->panel) { + ret = drm_panel_enable(dsi->panel); + if (ret < 0) { + exynos_dsi_set_display_enable(dsi, false); + drm_panel_unprepare(dsi->panel); + return; + } } + dsi->state |= DSIM_STATE_ENABLED; dsi->state |= DSIM_STATE_VIDOUT_AVAILABLE; }
--
2.7.4