On 11/20/25 03:23, Chaoyi Chen wrote:
From: Chaoyi Chen <[email protected]>
Using the DRM_AUX_BRIDGE helper to create the transparent DRM bridge
device.
Signed-off-by: Chaoyi Chen <[email protected]>
---
Changes in v10:
- Use drm_aux_bridge_register_from_node() instead.
(no changes since v7)
Changes in v6:
- Fix depend in Kconfig.
drivers/phy/rockchip/Kconfig | 2 ++
drivers/phy/rockchip/phy-rockchip-typec.c | 5 +++++
2 files changed, 7 insertions(+)
diff --git a/drivers/phy/rockchip/Kconfig b/drivers/phy/rockchip/Kconfig
index db4adc7c53da..bcb5476222fc 100644
--- a/drivers/phy/rockchip/Kconfig
+++ b/drivers/phy/rockchip/Kconfig
@@ -120,6 +120,8 @@ config PHY_ROCKCHIP_TYPEC
tristate "Rockchip TYPEC PHY Driver"
depends on OF && (ARCH_ROCKCHIP || COMPILE_TEST)
depends on TYPEC || TYPEC=n
+ depends on DRM || DRM=n
+ select DRM_AUX_BRIDGE if DRM_BRIDGE
select EXTCON
select GENERIC_PHY
select RESET_CONTROLLER
diff --git a/drivers/phy/rockchip/phy-rockchip-typec.c
b/drivers/phy/rockchip/phy-rockchip-typec.c
index 1f5b4142cbe4..e31b778c3537 100644
--- a/drivers/phy/rockchip/phy-rockchip-typec.c
+++ b/drivers/phy/rockchip/phy-rockchip-typec.c
@@ -56,6 +56,7 @@
#include <linux/phy/phy.h>
#include <linux/usb/typec_dp.h>
#include <linux/usb/typec_mux.h>
+#include <drm/bridge/aux-bridge.h>
#define CMN_SSM_BANDGAP (0x21 << 2)
#define CMN_SSM_BIAS (0x22 << 2)
@@ -1312,6 +1313,10 @@ static int tcphy_setup_typec_mux(struct
rockchip_typec_phy *tcphy)
if (!of_property_read_bool(np, "mode-switch"))
goto put_np;
+ ret = drm_aux_bridge_register_from_node(tcphy->dev, np);
+ if (ret)
+ goto put_np;
+
mux_desc.drvdata = tcphy;
mux_desc.fwnode = device_get_named_child_node(tcphy->dev, "dp-port");
mux_desc.set = tcphy_typec_mux_set;
Much better now !
Reviewed-by: Neil Armstrong <[email protected]>
