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drm/bridge: samsung-dsim: don't create a panel_bridge

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Now a panel_bridge is automatically created for every drm_panel and the
panel-bridge API is just a deprecated wrapper to access it.

Update and simplify the code by just getting a reference to the
already-existing bridge using of_drm_find_and_get_bridge().

Acked-by: Maxime Ripard <mripard@kernel.org>
Link: https://patch.msgid.link/20260916-drm-bridge-every-panel-v3-14-83afb4f1a707@bootlin.com
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
This commit is contained in:
Luca Ceresoli 2026-09-16 15:45:38 +02:00
parent 802372cf31
commit f763a25c44
2 changed files with 5 additions and 20 deletions
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1
drivers/gpu/drm/bridge/Kconfig
View File

@ -302,7 +302,6 @@ config DRM_SAMSUNG_DSIM
depends on OF && HAS_IOMEM
select DRM_KMS_HELPER
select DRM_MIPI_DSI
select DRM_PANEL_BRIDGE
select GENERIC_PHY
select GENERIC_PHY_MIPI_DPHY
help

24
drivers/gpu/drm/bridge/samsung-dsim.c
View File

@ -25,7 +25,6 @@
#include <video/mipi_display.h>
#include <drm/bridge/samsung-dsim.h>
#include <drm/drm_panel.h>
#include <drm/drm_print.h>
/* returns true iff both arguments logically differs */
@ -1898,7 +1897,6 @@ static int samsung_dsim_host_attach(struct mipi_dsi_host *host,
struct device *dev = dsi->dev;
struct device_node *np = dev->of_node;
struct device_node *remote;
struct drm_panel *panel;
int ret = 0;
/*
@ -1913,7 +1911,7 @@ static int samsung_dsim_host_attach(struct mipi_dsi_host *host,
of_node_name_eq(remote, "ports"))
continue;
goto of_find_panel_or_bridge;
goto of_find_bridge;
}
/*
@ -1927,25 +1925,13 @@ static int samsung_dsim_host_attach(struct mipi_dsi_host *host,
remote = of_graph_get_remote_node(np, 1, 0);
of_find_panel_or_bridge:
of_find_bridge:
if (!remote)
return -ENODEV;
panel = of_drm_find_panel(remote);
if (!IS_ERR(panel)) {
next_bridge = devm_drm_panel_bridge_add(dev, panel);
drm_panel_put(panel);
if (IS_ERR(next_bridge)) {
ret = PTR_ERR(next_bridge);
next_bridge = NULL; // Inhibit the cleanup action on an ERR_PTR
} else {
drm_bridge_get(next_bridge);
}
} else {
next_bridge = of_drm_find_and_get_bridge(remote);
if (!next_bridge)
ret = -EINVAL;
}
next_bridge = of_drm_find_and_get_bridge(remote);
if (!next_bridge)
ret = -EINVAL;
of_node_put(remote);