diff options
| author | Marek Szyprowski <m.szyprowski@samsung.com> | 2018-03-05 11:57:41 +0300 |
|---|---|---|
| committer | Andrzej Hajda <a.hajda@samsung.com> | 2018-03-07 18:18:00 +0300 |
| commit | 2e9b3e74b4a184f657995cf28963f72531c7a420 (patch) | |
| tree | 3189afb443911c681d186913c4c6e3786bff2a61 /drivers | |
| parent | f25c83581583eca9b1c1e6fd2914c7f8a1be22de (diff) | |
| download | linux-2e9b3e74b4a184f657995cf28963f72531c7a420.tar.xz | |
drm/bridge: analogix_dp: Don't create useless connectors
If there is another bridge after analogix_dp, then the connector object
should not be created. This fixes following timeouts on Exynos5420-based
Chromebook2 Peach-PIT board during boot:
exynos-dp 145b0000.dp-controller: AUX CH cmd reply timeout!
exynos-dp 145b0000.dp-controller: AUX CH enable timeout!
exynos-dp 145b0000.dp-controller: AUX CH enable timeout!
exynos-dp 145b0000.dp-controller: AUX CH enable timeout!
exynos-dp 145b0000.dp-controller: AUX CH enable timeout!
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180305085741.18896-4-m.szyprowski@samsung.com
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/bridge/analogix/analogix_dp_core.c | 29 | ||||
| -rw-r--r-- | drivers/gpu/drm/exynos/exynos_dp.c | 1 |
2 files changed, 17 insertions, 13 deletions
diff --git a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c index b391d149db91..a693ab3078f0 100644 --- a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c +++ b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c @@ -1012,27 +1012,30 @@ static int analogix_dp_bridge_attach(struct drm_bridge *bridge) { struct analogix_dp_device *dp = bridge->driver_private; struct drm_encoder *encoder = dp->encoder; - struct drm_connector *connector = &dp->connector; - int ret; + struct drm_connector *connector = NULL; + int ret = 0; if (!bridge->encoder) { DRM_ERROR("Parent encoder object not found"); return -ENODEV; } - connector->polled = DRM_CONNECTOR_POLL_HPD; + if (!dp->plat_data->skip_connector) { + connector = &dp->connector; + connector->polled = DRM_CONNECTOR_POLL_HPD; - ret = drm_connector_init(dp->drm_dev, connector, - &analogix_dp_connector_funcs, - DRM_MODE_CONNECTOR_eDP); - if (ret) { - DRM_ERROR("Failed to initialize connector with drm\n"); - return ret; - } + ret = drm_connector_init(dp->drm_dev, connector, + &analogix_dp_connector_funcs, + DRM_MODE_CONNECTOR_eDP); + if (ret) { + DRM_ERROR("Failed to initialize connector with drm\n"); + return ret; + } - drm_connector_helper_add(connector, - &analogix_dp_connector_helper_funcs); - drm_mode_connector_attach_encoder(connector, encoder); + drm_connector_helper_add(connector, + &analogix_dp_connector_helper_funcs); + drm_mode_connector_attach_encoder(connector, encoder); + } /* * NOTE: the connector registration is implemented in analogix diff --git a/drivers/gpu/drm/exynos/exynos_dp.c b/drivers/gpu/drm/exynos/exynos_dp.c index 33319a858f3a..964831dab102 100644 --- a/drivers/gpu/drm/exynos/exynos_dp.c +++ b/drivers/gpu/drm/exynos/exynos_dp.c @@ -244,6 +244,7 @@ static int exynos_dp_probe(struct platform_device *pdev) /* The remote port can be either a panel or a bridge */ dp->plat_data.panel = panel; + dp->plat_data.skip_connector = !!bridge; dp->ptn_bridge = bridge; out: |