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Thu, 06 Nov 2025 10:11:38 -0800 (PST) Received: from localhost.localdomain ([2600:1700:fb0:1bc0:41f9:c9d3:db30:c36a]) by smtp.gmail.com with ESMTPSA id 586e51a60fabf-3e41ed0aa06sm137739fac.8.2025.11.06.10.11.37 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 06 Nov 2025 10:11:38 -0800 (PST) From: Chris Morgan To: linux-rockchip@lists.infradead.org Cc: devicetree@vger.kernel.org, dri-devel@lists.freedesktop.org, cristian.ciocaltea@collabora.com, sebastian.reichel@collabora.com, jernej.skrabec@gmail.com, jonas@kwiboo.se, Laurent.pinchart@ideasonboard.com, rfoss@kernel.org, neil.armstrong@linaro.org, andrzej.hajda@intel.com, conor+dt@kernel.org, krzk+dt@kernel.org, robh@kernel.org, tzimmermann@suse.de, mripard@kernel.org, andy.yan@rock-chips.com, heiko@sntech.de, Chris Morgan Subject: [PATCH 1/3] dt-bindings: display: rockchip: Add no-hpd for dw-hdmi-qp controller Date: Thu, 6 Nov 2025 12:09:12 -0600 Message-ID: <20251106180914.768502-2-macroalpha82@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20251106180914.768502-1-macroalpha82@gmail.com> References: <20251106180914.768502-1-macroalpha82@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" From: Chris Morgan Add an attribute of "no-hpd" for the Rockchip dw-hdmi-qp controller. This is used to describe implementations where the HPD pin is not connected or used for other purposes, such as in the RK3588S based Gameforce Ace which repurposed the GPIO for an additional face button. The "no-hpd" option was chosen to be consistent with other devices which already define this parameter for broken or missing hpd functionality. Signed-off-by: Chris Morgan --- .../display/rockchip/rockchip,rk3588-dw-hdmi-qp.yaml | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/Documentation/devicetree/bindings/display/rockchip/rockchip,rk3588-dw-hdmi-qp.yaml b/Documentation/devicetree/bindings/display/rockchip/rockchip,rk3588-dw-hdmi-qp.yaml index 96b4b088eebe..07342838cd52 100644 --- a/Documentation/devicetree/bindings/display/rockchip/rockchip,rk3588-dw-hdmi-qp.yaml +++ b/Documentation/devicetree/bindings/display/rockchip/rockchip,rk3588-dw-hdmi-qp.yaml @@ -69,6 +69,12 @@ properties: - const: main - const: hpd + no-hpd: + type: boolean + description: + The HPD pin is not present or used for another purpose, and the EDID + must be polled instead to determine if a device is attached. + phys: maxItems: 1 description: The HDMI/eDP PHY -- 2.43.0