diff options
| author | Jagan Teki <jagan@amarulasolutions.com> | 2022-12-12 21:29:23 +0300 |
|---|---|---|
| committer | Inki Dae <inki.dae@samsung.com> | 2023-01-26 09:11:24 +0300 |
| commit | 1a1ce789e6c5da5a16d3d17bc228c6ab0b5863ed (patch) | |
| tree | a6748c93618546110243a05815a852709cd33439 /drivers/gpu/drm/exynos | |
| parent | 4aa5fc8dbb85e8e2c486ede4056ca3d4e757c50d (diff) | |
| download | linux-1a1ce789e6c5da5a16d3d17bc228c6ab0b5863ed.tar.xz | |
drm: exynos: dsi: Restore proper bridge chain order
Restore the proper bridge chain by finding the previous bridge
in the chain instead of passing NULL.
This establishes a proper bridge chain while attaching downstream
bridges.
Reviewed-by: Marek Vasut <marex@denx.de>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Reviewed-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Diffstat (limited to 'drivers/gpu/drm/exynos')
| -rw-r--r-- | drivers/gpu/drm/exynos/exynos_drm_dsi.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/gpu/drm/exynos/exynos_drm_dsi.c b/drivers/gpu/drm/exynos/exynos_drm_dsi.c index 320c370cfe24..06d6513ddaae 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_dsi.c +++ b/drivers/gpu/drm/exynos/exynos_drm_dsi.c @@ -1445,7 +1445,8 @@ static int exynos_dsi_attach(struct drm_bridge *bridge, { struct exynos_dsi *dsi = bridge_to_dsi(bridge); - return drm_bridge_attach(bridge->encoder, dsi->out_bridge, NULL, flags); + return drm_bridge_attach(bridge->encoder, dsi->out_bridge, bridge, + flags); } static const struct drm_bridge_funcs exynos_dsi_bridge_funcs = { @@ -1491,7 +1492,10 @@ static int exynos_dsi_host_attach(struct mipi_dsi_host *host, drm_bridge_add(&dsi->bridge); - drm_bridge_attach(encoder, &dsi->bridge, NULL, 0); + drm_bridge_attach(encoder, &dsi->bridge, + list_first_entry_or_null(&encoder->bridge_chain, + struct drm_bridge, + chain_node), 0); /* * This is a temporary solution and should be made by more generic way. @@ -1726,6 +1730,7 @@ static int exynos_dsi_probe(struct platform_device *pdev) dsi->bridge.funcs = &exynos_dsi_bridge_funcs; dsi->bridge.of_node = dev->of_node; dsi->bridge.type = DRM_MODE_CONNECTOR_DSI; + dsi->bridge.pre_enable_prev_first = true; ret = component_add(dev, &exynos_dsi_component_ops); if (ret) |