Re: [PATCH v5 1/8] dt-bindings: phy: Add PHY_DIRECTION_TX/RX definitions

From: Krzysztof Kozlowski

Date: Sat Oct 17 2026 - 14:18:07 EST


On Fri, Oct 16, 2026 at 04:56:35PM +0800, Jason Yang wrote:
> A MIPI D-PHY or C-PHY can be a transmitter or a receiver. Some PHY
> blocks have one of each and can use them at the same time, so one PHY
> node offers two PHYs. The existing cell, PHY_TYPE_DPHY or
> PHY_TYPE_CPHY, selects the mode of the whole block, not one of the two
> PHYs.
>
> Add PHY_DIRECTION_TX and PHY_DIRECTION_RX for a cell that selects the
> transmitter or the receiver. The first user is the Rockchip RK3588 MIPI
> DC-PHY, where the transmitter serves a DSI host and the receiver a CSI-2
> host.
>
> Suggested-by: Michael Riesch <michael.riesch@xxxxxxxxxxxxx>
> Link: https://lore.kernel.org/r/7425ac83-f6d8-4443-a26e-a47f9306aa24@xxxxxxxxxxxxx
> Signed-off-by: Jason Yang <jason98166@xxxxxxxxx>
> ---
> include/dt-bindings/phy/phy.h | 3 +++
> 1 file changed, 3 insertions(+)

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxxxxxxxx>

Best regards,
Krzysztof