From: "benjamin.gaignard@linaro.org" <benjamin.gaignard@linaro.org>
Date: Mon, 2 Oct 2017 11:34:47 +0200
Subject: drm/vc4: remove bridge from driver internal structure
Git-commit: 8f6b06c11ca4ff0160df54b53299bf94bfd05645
Patch-mainline: v4.15-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166
With a call to drm_of_panel_bridge_remove() we could remove
the bridge without store it in vc4_dpi internal driver structure.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org>
Reviewed-by: Eric Anholt <eric@anholt.net>
Link: https://patchwork.freedesktop.org/patch/msgid/1506936888-23844-5-git-send-email-benjamin.gaignard@linaro.org
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
drivers/gpu/drm/vc4/vc4_dpi.c | 17 ++++++-----------
1 file changed, 6 insertions(+), 11 deletions(-)
--- a/drivers/gpu/drm/vc4/vc4_dpi.c
+++ b/drivers/gpu/drm/vc4/vc4_dpi.c
@@ -97,8 +97,6 @@ struct vc4_dpi {
struct drm_encoder *encoder;
struct drm_connector *connector;
- struct drm_bridge *bridge;
- bool is_panel_bridge;
void __iomem *regs;
@@ -251,10 +249,11 @@ static int vc4_dpi_init_bridge(struct vc
{
struct device *dev = &dpi->pdev->dev;
struct drm_panel *panel;
+ struct drm_bridge *bridge;
int ret;
ret = drm_of_find_panel_or_bridge(dev->of_node, 0, 0,
- &panel, &dpi->bridge);
+ &panel, &bridge);
if (ret) {
/* If nothing was connected in the DT, that's not an
* error.
@@ -265,13 +264,10 @@ static int vc4_dpi_init_bridge(struct vc
return ret;
}
- if (panel) {
- dpi->bridge = drm_panel_bridge_add(panel,
- DRM_MODE_CONNECTOR_DPI);
- dpi->is_panel_bridge = true;
- }
+ if (panel)
+ bridge = drm_panel_bridge_add(panel, DRM_MODE_CONNECTOR_DPI);
- return drm_bridge_attach(dpi->encoder, dpi->bridge, NULL);
+ return drm_bridge_attach(dpi->encoder, bridge, NULL);
}
static int vc4_dpi_bind(struct device *dev, struct device *master, void *data)
@@ -352,8 +348,7 @@ static void vc4_dpi_unbind(struct device
struct vc4_dev *vc4 = to_vc4_dev(drm);
struct vc4_dpi *dpi = dev_get_drvdata(dev);
- if (dpi->is_panel_bridge)
- drm_panel_bridge_remove(dpi->bridge);
+ drm_of_panel_bridge_remove(dev->of_node, 0, 0);
drm_encoder_cleanup(dpi->encoder);