* [PATCH] drm/tve200: Clean up panel bridging
@ 2017-09-07 21:19 Linus Walleij
2017-09-08 6:35 ` Daniel Vetter
2017-09-08 17:49 ` Eric Anholt
0 siblings, 2 replies; 3+ messages in thread
From: Linus Walleij @ 2017-09-07 21:19 UTC (permalink / raw)
To: linux-arm-kernel
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.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
drivers/gpu/drm/tve200/tve200_display.c | 3 ---
drivers/gpu/drm/tve200/tve200_drv.c | 30 +++++++++++++-----------------
2 files changed, 13 insertions(+), 20 deletions(-)
diff --git a/drivers/gpu/drm/tve200/tve200_display.c b/drivers/gpu/drm/tve200/tve200_display.c
index cfdffc15a2ce..fd193377c3c0 100644
--- a/drivers/gpu/drm/tve200/tve200_display.c
+++ b/drivers/gpu/drm/tve200/tve200_display.c
@@ -332,8 +332,5 @@ int tve200_display_init(struct drm_device *drm)
if (ret)
return ret;
- /* We need the encoder to attach the bridge */
- priv->encoder = &priv->pipe.encoder;
-
return 0;
}
diff --git a/drivers/gpu/drm/tve200/tve200_drv.c b/drivers/gpu/drm/tve200/tve200_drv.c
index c22644692a88..eae38b669f0a 100644
--- 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 drm_device *dev)
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 drm_device *dev)
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 drm_device *dev)
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_device *pdev)
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);
--
2.13.5
^ permalink raw reply related [flat|nested] 3+ messages in thread* [PATCH] drm/tve200: Clean up panel bridging
2017-09-07 21:19 [PATCH] drm/tve200: Clean up panel bridging Linus Walleij
@ 2017-09-08 6:35 ` Daniel Vetter
2017-09-08 17:49 ` Eric Anholt
1 sibling, 0 replies; 3+ messages in thread
From: Daniel Vetter @ 2017-09-08 6:35 UTC (permalink / raw)
To: linux-arm-kernel
On Thu, Sep 07, 2017 at 11:19:33PM +0200, Linus Walleij wrote:
> 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.
>
> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
> ---
> drivers/gpu/drm/tve200/tve200_display.c | 3 ---
> drivers/gpu/drm/tve200/tve200_drv.c | 30 +++++++++++++-----------------
> 2 files changed, 13 insertions(+), 20 deletions(-)
>
> diff --git a/drivers/gpu/drm/tve200/tve200_display.c b/drivers/gpu/drm/tve200/tve200_display.c
> index cfdffc15a2ce..fd193377c3c0 100644
> --- a/drivers/gpu/drm/tve200/tve200_display.c
> +++ b/drivers/gpu/drm/tve200/tve200_display.c
> @@ -332,8 +332,5 @@ int tve200_display_init(struct drm_device *drm)
> if (ret)
> return ret;
>
> - /* We need the encoder to attach the bridge */
> - priv->encoder = &priv->pipe.encoder;
> -
> return 0;
> }
> diff --git a/drivers/gpu/drm/tve200/tve200_drv.c b/drivers/gpu/drm/tve200/tve200_drv.c
> index c22644692a88..eae38b669f0a 100644
> --- 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 drm_device *dev)
> 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 drm_device *dev)
> 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 drm_device *dev)
> 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_device *pdev)
> 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);
> --
> 2.13.5
>
> _______________________________________________
> dri-devel mailing list
> dri-devel at lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
^ permalink raw reply [flat|nested] 3+ messages in thread* [PATCH] drm/tve200: Clean up panel bridging
2017-09-07 21:19 [PATCH] drm/tve200: Clean up panel bridging Linus Walleij
2017-09-08 6:35 ` Daniel Vetter
@ 2017-09-08 17:49 ` Eric Anholt
1 sibling, 0 replies; 3+ messages in thread
From: Eric Anholt @ 2017-09-08 17:49 UTC (permalink / raw)
To: linux-arm-kernel
Linus Walleij <linus.walleij@linaro.org> writes:
> 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.
>
> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
> ---
> drivers/gpu/drm/tve200/tve200_display.c | 3 ---
> drivers/gpu/drm/tve200/tve200_drv.c | 30 +++++++++++++-----------------
> 2 files changed, 13 insertions(+), 20 deletions(-)
>
> diff --git a/drivers/gpu/drm/tve200/tve200_display.c b/drivers/gpu/drm/tve200/tve200_display.c
> index cfdffc15a2ce..fd193377c3c0 100644
> --- a/drivers/gpu/drm/tve200/tve200_display.c
> +++ b/drivers/gpu/drm/tve200/tve200_display.c
> @@ -332,8 +332,5 @@ int tve200_display_init(struct drm_device *drm)
> if (ret)
> return ret;
>
> - /* We need the encoder to attach the bridge */
> - priv->encoder = &priv->pipe.encoder;
Also drop the encoder field from priv?
Other than that,
Reviewed-by: Eric Anholt <eric@anholt.net>
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