From: Linus Walleij <linus.walleij@linaro.org>
Date: Mon, 11 Sep 2017 00:08:01 +0200
Subject: drm/tve200: Clean up panel bridging
Git-commit: 9ab12e88a0b46b4e6fa32bb0a2875c813a928e73
Patch-mainline: v4.15-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166
This makes use of the drm_simple_display_pipe_attach_bridge()
call and removes the two calls removing the bridge, which were
erroneous: they unregister the bridge which is not what
we want, we just want to unreference it and that is already
handled by the core.
Reviewed-by: Eric Anholt <eric@anholt.net>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20170910220801.28588-1-linus.walleij@linaro.org
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
drivers/gpu/drm/tve200/tve200_display.c | 3 ---
drivers/gpu/drm/tve200/tve200_drm.h | 1 -
drivers/gpu/drm/tve200/tve200_drv.c | 30 +++++++++++++-----------------
3 files changed, 13 insertions(+), 21 deletions(-)
--- a/drivers/gpu/drm/tve200/tve200_display.c
+++ b/drivers/gpu/drm/tve200/tve200_display.c
@@ -333,8 +333,5 @@ int tve200_display_init(struct drm_devic
if (ret)
return ret;
- /* We need the encoder to attach the bridge */
- priv->encoder = &priv->pipe.encoder;
-
return 0;
}
--- a/drivers/gpu/drm/tve200/tve200_drm.h
+++ b/drivers/gpu/drm/tve200/tve200_drm.h
@@ -100,7 +100,6 @@ struct tve200_drm_dev_private {
struct drm_device *drm;
struct drm_connector *connector;
- struct drm_encoder *encoder;
struct drm_panel *panel;
struct drm_bridge *bridge;
struct drm_simple_display_pipe pipe;
--- a/drivers/gpu/drm/tve200/tve200_drv.c
+++ b/drivers/gpu/drm/tve200/tve200_drv.c
@@ -87,6 +87,14 @@ static int tve200_modeset_init(struct dr
ret = PTR_ERR(bridge);
goto out_bridge;
}
+ } else {
+ /*
+ * TODO: when we are using a different bridge than a panel
+ * (such as a dumb VGA connector) we need to devise a different
+ * method to get the connector out of the bridge.
+ */
+ dev_err(dev->dev, "the bridge is not a panel\n");
+ goto out_bridge;
}
ret = tve200_display_init(dev);
@@ -95,21 +103,13 @@ static int tve200_modeset_init(struct dr
goto out_bridge;
}
- if (bridge) {
- ret = drm_bridge_attach(priv->encoder, bridge, NULL);
- if (ret)
- goto out_bridge;
- }
-
- /*
- * TODO: when we are using a different bridge than a panel
- * (such as a dumb VGA connector) we need to devise a different
- * method to get the connector out of the bridge.
- */
- if (!panel) {
- dev_err(dev->dev, "the bridge is not a panel\n");
+ ret = drm_simple_display_pipe_attach_bridge(&priv->pipe,
+ bridge);
+ if (ret) {
+ dev_err(dev->dev, "failed to attach bridge\n");
goto out_bridge;
}
+
priv->panel = panel;
priv->connector = panel->connector;
priv->bridge = bridge;
@@ -138,8 +138,6 @@ static int tve200_modeset_init(struct dr
out_bridge:
if (panel)
drm_panel_bridge_remove(bridge);
- else
- drm_bridge_remove(bridge);
drm_mode_config_cleanup(dev);
finish:
return ret;
@@ -275,8 +273,6 @@ static int tve200_remove(struct platform
drm_fbdev_cma_fini(priv->fbdev);
if (priv->panel)
drm_panel_bridge_remove(priv->bridge);
- else
- drm_bridge_remove(priv->bridge);
drm_mode_config_cleanup(drm);
clk_disable_unprepare(priv->pclk);
drm_dev_unref(drm);