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([2804:1b3:a803:fafb:5a7b:510a:6309:f015]) by smtp.gmail.com with ESMTPSA id ada2fe7eead31-605b214b45fsm5120113137.5.2026.04.04.13.04.45 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 04 Apr 2026 13:04:49 -0700 (PDT) From: Fabio Estevam To: heiko@sntech.de Cc: hjc@rock-chips.com, andy.yan@rock-chips.com, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org, Fabio Estevam Subject: [PATCH] dt-bindings: display: rockchip: dw-hdmi: Allow resets for Rockchip HDMI Date: Sat, 4 Apr 2026 17:04:34 -0300 Message-ID: <20260404200434.1954651-1-festevam@gmail.com> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit The Rockchip DW HDMI binding sets unevaluatedProperties: false while also inheriting from synopsys,dw-hdmi.yaml via allOf. The Synopsys binding defines the optional properties resets and reset-names, but due to dt-schema rules these are not considered allowed once unevaluatedProperties: false is set in the Rockchip schema unless they are re-declared locally. This went unnoticed because most Rockchip SoCs do not wire a reset line to the HDMI controller in their DTS. The rk3228, however, does use a reset, which causes dtbs_check to emit: Unevaluated properties are not allowed ('resets', 'reset-names') Re-declare these properties in the Rockchip schema so they are accepted when present, matching the capabilities of the underlying Synopsys IP and fixing the dtbs_check warning for rk3228. Signed-off-by: Fabio Estevam --- .../bindings/display/rockchip/rockchip,dw-hdmi.yaml | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/Documentation/devicetree/bindings/display/rockchip/rockchip,dw-hdmi.yaml b/Documentation/devicetree/bindings/display/rockchip/rockchip,dw-hdmi.yaml index 29716764413a..59fb084bb4fb 100644 --- a/Documentation/devicetree/bindings/display/rockchip/rockchip,dw-hdmi.yaml +++ b/Documentation/devicetree/bindings/display/rockchip/rockchip,dw-hdmi.yaml @@ -113,6 +113,12 @@ properties: - port@0 - port@1 + resets: + maxItems: 1 + + reset-names: + const: hdmi + rockchip,grf: $ref: /schemas/types.yaml#/definitions/phandle description: -- 2.43.0