[PATCH v4 1/7] dt-bindings: phy: Add PHY_TYPE_DSI and PHY_TYPE_CSI definitions

From: Jason Yang via B4 Relay

Date: Fri Aug 21 2026 - 08:06:08 EST


From: Jason Yang <jason98166@xxxxxxxxx>

A MIPI D-PHY or C-PHY can be a transmitter (DSI) or a receiver (CSI),
and in some PHY blocks both work at the same time. The existing
PHY_TYPE_DPHY and PHY_TYPE_CPHY cannot tell whether a consumer wants
the transmitter or the receiver.

Add PHY_TYPE_DSI and PHY_TYPE_CSI, so that a binding can select both
D-PHY or C-PHY and transmitter or receiver. They do not replace
PHY_TYPE_DPHY/PHY_TYPE_CPHY, which remain the right choice where a cell
selects the mode. The first user is the Rockchip RK3588 MIPI DC-PHY
binding.

Suggested-by: Michael Riesch <michael.riesch@xxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/82da3622-9c3a-454c-87bc-fb4ec7adb68d@xxxxxxxxxxxxx
Signed-off-by: Jason Yang <jason98166@xxxxxxxxx>
---
include/dt-bindings/phy/phy.h | 2 ++
1 file changed, 2 insertions(+)

diff --git a/include/dt-bindings/phy/phy.h b/include/dt-bindings/phy/phy.h
index 979b5dfd8353..8ee3f88e6d80 100644
--- a/include/dt-bindings/phy/phy.h
+++ b/include/dt-bindings/phy/phy.h
@@ -24,6 +24,8 @@
#define PHY_TYPE_CPHY 11
#define PHY_TYPE_USXGMII 12
#define PHY_TYPE_XAUI 13
+#define PHY_TYPE_DSI 14
+#define PHY_TYPE_CSI 15

#define PHY_POL_NORMAL 0
#define PHY_POL_INVERT 1

--
2.43.0