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[2.99.112.229]) by smtp.gmail.com with ESMTPSA id z17-20020a5d4d11000000b0032d9548240fsm8456734wrt.82.2023.10.15.14.11.59 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 15 Oct 2023 14:11:59 -0700 (PDT) From: Caleb Connolly Date: Sun, 15 Oct 2023 22:11:49 +0100 Subject: [PATCH v2 1/7] dt-bindings: input: syna,rmi4: document syna,pdt-fallback-desc MIME-Version: 1.0 Message-Id: <20230929-caleb-rmi4-quirks-v2-1-b227ac498d88@linaro.org> References: <20230929-caleb-rmi4-quirks-v2-0-b227ac498d88@linaro.org> In-Reply-To: <20230929-caleb-rmi4-quirks-v2-0-b227ac498d88@linaro.org> To: Dmitry Torokhov , Vincent Huang Cc: methanal , linux-input@vger.kernel.org, devicetree@vger.kernel.org, phone-devel@vger.kernel.org, ~postmarketos/upstreaming@lists.sr.ht, Caleb Connolly , "Jason A. Donenfeld" , Matthias Schiffer , Rob Herring , Krzysztof Kozlowski , Conor Dooley X-Mailer: b4 0.13-dev-46309 X-Developer-Signature: v=1; a=openpgp-sha256; l=1874; i=caleb.connolly@linaro.org; h=from:subject:message-id; bh=3p+nvUWlXAHPVkfrEPpEuMHDYaLsSCwDXEwLrUrxwrY=; b=owGbwMvMwCFYaeA6f6eBkTjjabUkhlSd0Lk/7wo/CTx0ouNRc/XMnnL1KRFJtp/qvZaw1d0xt /yhsP9LRykLgyAHg6yYIov4iWWWTWsv22tsX3ABZg4rE8gQBi5OAZjIpnSG/zH9PPP2lX2o+dv7 hV3/5eO/sYfqNuyctk1KMTa0b6aiwjyGv4Ka9UlPpnuZ3PXvdPhx+3GNndND/ZsBZ4zW/nfi0g9 /VwcA X-Developer-Key: i=caleb.connolly@linaro.org; a=openpgp; fpr=83B24DA7FE145076BC38BB250CD904EB673A7C47 Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org This new property allows devices to specify some register values which are missing on units with third party replacement displays. These displays use unofficial touch ICs which only implement a subset of the RMI4 specification. Signed-off-by: Caleb Connolly --- To: "Jason A. Donenfeld" To: Matthias Schiffer To: Rob Herring To: Krzysztof Kozlowski To: Conor Dooley Cc: devicetree@vger.kernel.org --- Documentation/devicetree/bindings/input/syna,rmi4.yaml | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/Documentation/devicetree/bindings/input/syna,rmi4.yaml b/Documentation/devicetree/bindings/input/syna,rmi4.yaml index 4d4e1a8e36be..1f4a2179e4d3 100644 --- a/Documentation/devicetree/bindings/input/syna,rmi4.yaml +++ b/Documentation/devicetree/bindings/input/syna,rmi4.yaml @@ -49,6 +49,21 @@ properties: description: Delay to wait after powering on the device. + syna,pdt-fallback-desc: + $ref: /schemas/types.yaml#/definitions/uint8-matrix + description: + An array of pairs of function number and version. These are used + on some devices with replacement displays that use unofficial touch + controllers. These controllers do report the properties of their Page + Descriptor Table (PDT) entries, but leave the function_number and + function_version registers blank. These values should match exactly + the 5th and 4th bytes of each PDT entry from the original display's + touch controller. + items: + items: + - description: The 5th byte of the PDT entry + - description: The 4th byte of the PDT entry + vdd-supply: true vio-supply: true