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Wed, 25 Mar 2026 14:47:32 -0700 (PDT) From: Bryan O'Donoghue Date: Wed, 25 Mar 2026 21:47:57 +0000 Subject: [PATCH 1/4] phy: dphy: Add lane_positions to DPHY config struct Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260325-dphy-params-extension-v1-1-c6df5599284a@linaro.org> References: <20260325-dphy-params-extension-v1-0-c6df5599284a@linaro.org> In-Reply-To: <20260325-dphy-params-extension-v1-0-c6df5599284a@linaro.org> To: Vinod Koul , Neil Armstrong , Marco Felsch , Maxime Ripard Cc: linux-phy@lists.infradead.org, linux-kernel@vger.kernel.org, Bryan O'Donoghue X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=openpgp-sha256; l=1428; i=bryan.odonoghue@linaro.org; h=from:subject:message-id; bh=ifv30MJTT9Kq3rU4F/0lfgtGdY/CJTJdg4VXhDyxAqM=; b=owEBbQKS/ZANAwAKASJxO7Ohjcg6AcsmYgBpxFgO48lH4cNvKfoaQPuZTx8IjEdMBxi/fIw9u PHn2+WCaM6JAjMEAAEKAB0WIQTmk/sqq6Nt4Rerb7QicTuzoY3IOgUCacRYDgAKCRAicTuzoY3I OgTLD/0Y5cXnyg+CyY34aCujLm4/jEvYCPVQjIi++u5w/ojDJCb1TfzLq2jvaQ5KNj7KCwJQIXY U6+9GHRn9WagrGaTYGe8X7PrEZiv3jnV7WCZkPdBpRyA7dWrztCYqUd5rf4t2FQTJgr/oSkBwRN DRXfG1wXcs6kx0RtTYaPRVSViENKXn36KAgekUjrB8Ng5rYFDSFsKItwHc7lVgl5NNyG+jFigTw CpSPFaBnHhP3zKQM/nMW4npVuJO6KwZDTft9uTlIfT6iyNYNyHVva3pS2cRVzmwqAlEmSvWJgzO XwpPbSHRciXglsY9hIjhO44iVTuWuu2tq4FGTJHV5HdSuhQyoCQdfsHnfw4MNiu2Bv4zX+4+n3f 8f9G4qwuxdX4RajP+z3/ayOXA/Cxq23MKdZaRJoDzlU8zNbrbtULjNniswNAk22Tazg/xYrfd5C cVQ8v4pCxJUlJ//+xiageB0jerPQ12sQcTWznyAojnaXrdRxzFdOHVgsqKjmz4djEmN+4h/+OOe yPZ/nhbZZr+zbqM3RZk6YzrewuMJSQe8Kkn8LeQk0clTj58JQILCbXxKyxYR4rMKXjWMlbzPTtU p6n0ucTNBqT4nzwc+gKGDtZSUwhtu7aP3GecLjCbbjBAhDadexQgSBBnIvS48W4UrNG4mXBU46K uK7aUZ2L0rDEL3A== X-Developer-Key: i=bryan.odonoghue@linaro.org; a=openpgp; fpr=E693FB2AABA36DE117AB6FB422713BB3A18DC83A Add lane_positions to the DPHY configuration struct. This data-field represents the physical positions of the data-lanes indexed by lane number. Signed-off-by: Bryan O'Donoghue --- include/linux/phy/phy-mipi-dphy.h | 15 +++++++++++++-- 1 file changed, 13 insertions(+), 2 deletions(-) diff --git a/include/linux/phy/phy-mipi-dphy.h b/include/linux/phy/phy-mipi= -dphy.h index 1ac128d78dfeb..c7eb11c41d7ec 100644 --- a/include/linux/phy/phy-mipi-dphy.h +++ b/include/linux/phy/phy-mipi-dphy.h @@ -6,6 +6,8 @@ #ifndef __PHY_MIPI_DPHY_H_ #define __PHY_MIPI_DPHY_H_ =20 +#define PHY_MIPI_DPHY_MAX_DATA_LANES 4 + /** * struct phy_configure_opts_mipi_dphy - MIPI D-PHY configuration set * @@ -269,10 +271,19 @@ struct phy_configure_opts_mipi_dphy { /** * @lanes: * - * Number of active, consecutive, data lanes, starting from - * lane 0, used for the transmissions. + * Number of active data lanes used for the transmission. + * When @lane_positions is not populated, lanes are consecutive + * starting from lane 0. */ unsigned char lanes; + + /** + * @lane_positions: + * + * Array representing the physical positions of the data-lanes. + * Indexed by logical lane number. + */ + unsigned char lane_positions[PHY_MIPI_DPHY_MAX_DATA_LANES]; 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Wed, 25 Mar 2026 14:47:33 -0700 (PDT) From: Bryan O'Donoghue Date: Wed, 25 Mar 2026 21:47:58 +0000 Subject: [PATCH 2/4] phy: dphy: Add lane_polarities to DPHY config struct Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260325-dphy-params-extension-v1-2-c6df5599284a@linaro.org> References: <20260325-dphy-params-extension-v1-0-c6df5599284a@linaro.org> In-Reply-To: <20260325-dphy-params-extension-v1-0-c6df5599284a@linaro.org> To: Vinod Koul , Neil Armstrong , Marco Felsch , Maxime Ripard Cc: linux-phy@lists.infradead.org, linux-kernel@vger.kernel.org, Bryan O'Donoghue X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=openpgp-sha256; l=945; i=bryan.odonoghue@linaro.org; h=from:subject:message-id; bh=TicNkvE+Lwh4LvqdBob75oxdEqSxVkNucZgbyPYOg8U=; b=owEBbQKS/ZANAwAKASJxO7Ohjcg6AcsmYgBpxFgOvu6zKbksQzXX1/UpLat135N79Gn/EaMdV AQup5LQ78KJAjMEAAEKAB0WIQTmk/sqq6Nt4Rerb7QicTuzoY3IOgUCacRYDgAKCRAicTuzoY3I On5ED/963T+WckaZI8mj+9ENKlXv6V964Z5377P/0LA5jUfMXQRdUhy+dEruIV0xfFZ+kwvtZql vkXaPGZj1LJM8qPZcASPfQQj/OnIAcvHNFbzWGHl7XTvZrmb8xOAFFIMbiOcKyktat5t7Mu28aP VsTZEY017XC9k3CazseBWuD7mJtHDkavefliAXD1ZirukYB+a8237Ji4Pc8VUPmZ9RzyCqNBT/h 2FN0BpjDpa3AkB1cTeywj0zz/L8Xfx41SnCNL7vaKnKN9KS/buKJU7n/QtdqA2C56TtM6mbBO0n sp1eUPudTSH+MF0KZjuF8PPpUrV29URPMe+g8bdIKp4sJJXSqPcKKb+njVg5EV5mL8i9KaLRHJQ +mDs1UuZfLgTIMnvaY5f1skXPI7tJ784z4zY0DYoYrJf459Rxj6JwIgZRHcLULKWm9GdyM1phup EhYsxhshM04/J1PKP+6dCnAWO7Gff+kv3jvvZGT2lfekXDZceuR3PoJYlTLe/F52qVnxjgC8+X5 xw26f3HHy00j5OD9HpLWGQENduuLjGlEeF1ZbE/HbtQNX5sWoYwSB23D1IpwlzAyZ/jeeAd3rtk /+7PuKPkiMrv5w5uhxDwQ60a541P18mF6nNoKU3glryBOLCzkDY8HXjFbSnXVhZMwnzjO950c5o zF2VA4loJcfdM/g== X-Developer-Key: i=bryan.odonoghue@linaro.org; a=openpgp; fpr=E693FB2AABA36DE117AB6FB422713BB3A18DC83A Pass an array of data-lane polarities from controller to PHY. A true value means the lane polarity is inverted. Signed-off-by: Bryan O'Donoghue --- include/linux/phy/phy-mipi-dphy.h | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/include/linux/phy/phy-mipi-dphy.h b/include/linux/phy/phy-mipi= -dphy.h index c7eb11c41d7ec..3e0333b5a1a71 100644 --- a/include/linux/phy/phy-mipi-dphy.h +++ b/include/linux/phy/phy-mipi-dphy.h @@ -284,6 +284,14 @@ struct phy_configure_opts_mipi_dphy { * Indexed by logical lane number. */ unsigned char lane_positions[PHY_MIPI_DPHY_MAX_DATA_LANES]; + + /** + * @lane_polarities: + * + * Array representing data-lane polarities. 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Wed, 25 Mar 2026 14:47:34 -0700 (PDT) From: Bryan O'Donoghue Date: Wed, 25 Mar 2026 21:47:59 +0000 Subject: [PATCH 3/4] phy: dphy: Add clock_lane_position to DPHY config struct Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260325-dphy-params-extension-v1-3-c6df5599284a@linaro.org> References: <20260325-dphy-params-extension-v1-0-c6df5599284a@linaro.org> In-Reply-To: <20260325-dphy-params-extension-v1-0-c6df5599284a@linaro.org> To: Vinod Koul , Neil Armstrong , Marco Felsch , Maxime Ripard Cc: linux-phy@lists.infradead.org, linux-kernel@vger.kernel.org, Bryan O'Donoghue X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=openpgp-sha256; l=923; i=bryan.odonoghue@linaro.org; h=from:subject:message-id; bh=WFedhgZd4xQLEP9DMPHx1qaOXKqM4Hgl4bUmxaqzH/Q=; b=owEBbQKS/ZANAwAKASJxO7Ohjcg6AcsmYgBpxFgO+bJdtvTEQi9k2G/aJxL6EIppIBtBGYTI2 0M1G5JlvkeJAjMEAAEKAB0WIQTmk/sqq6Nt4Rerb7QicTuzoY3IOgUCacRYDgAKCRAicTuzoY3I OoEcD/9nR1qbgPFdgw+/0+Rja5eh8+VHWRPIOQ/1oCCR5ji2WHBF0k10hl+SvPNRizuspS//REp ucirkQVx7AI4iFnTYbKUEbQR972XDwDr77/LGH9BkRXTuex5vwmUHc9zaSe2hdJWMYO/DAjsL5x XmkSkv6L07ah2NWUY89J7hzstwVOc+63D9Lw6JQvu3DmZIMQhU0yksxPbRTGYkvNSKUARtC0M9F XbadbCMEI2PK2+gMPkGb2K7hzELIZmoqFRAbXXFOI+y9kzNlw9zA+l7qIRxY3FaZXyYbTVgYCC+ 8LvRItR2EG4hghlkOeibCPipGRTdpnTi7MvykGsJCeXQ8WkavAk5X73ZtsFiawVluIcn7tK2u4P LBbnG0m+6psoDScn51SAa6gBBWUJo3jfAMORuzabJUWaf9pUQiYnNAswuYVAvSZRUbwwqY0eaew xRP+5G+G7OebYpNyDQ05XIFUel9yI0c+8nz4TYym5cB1J/Yf6klxL1/y26iiLdqGPeYgIGi1mdO 193FZ6xqBTmbcRwdYyZ1jaemNzn1EciattjQujSp+OevMo6fTlxBDYBsmZmwWxdoXbYJxCq0Xhg gTIqV9Y8MMndkOhqZ4SyaGLEoYEL1rWhK3paZE441NvL1AmhGCxmXgoQO9XqiGqrIe9AenArp1j r8mcDBCNsndvRuQ== X-Developer-Key: i=bryan.odonoghue@linaro.org; a=openpgp; fpr=E693FB2AABA36DE117AB6FB422713BB3A18DC83A We need to identify which lane is the clock-lane as many different PHYs allow for a range of lanes, potentially any of the lanes to be the clock input lane on a PHY. Signed-off-by: Bryan O'Donoghue --- include/linux/phy/phy-mipi-dphy.h | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/include/linux/phy/phy-mipi-dphy.h b/include/linux/phy/phy-mipi= -dphy.h index 3e0333b5a1a71..76d41580e225a 100644 --- a/include/linux/phy/phy-mipi-dphy.h +++ b/include/linux/phy/phy-mipi-dphy.h @@ -292,6 +292,13 @@ struct phy_configure_opts_mipi_dphy { * Indexed by logical lane number. */ bool lane_polarities[PHY_MIPI_DPHY_MAX_DATA_LANES]; + + /** + * @clock_lane_position: + * + * Physical lane number used as the clock lane. + */ + unsigned char clock_lane_position; }; =20 int phy_mipi_dphy_get_default_config(unsigned long pixel_clock, --=20 2.52.0 From nobody Thu Apr 2 23:55:30 2026 Received: from mail-wr1-f42.google.com (mail-wr1-f42.google.com [209.85.221.42]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7BAD63C8733 for ; Wed, 25 Mar 2026 21:47:37 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; 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a=openpgp; fpr=E693FB2AABA36DE117AB6FB422713BB3A18DC83A Specify the polarity of the clock lane in DPHY mode. When true this bool means the polarity is inverted. Signed-off-by: Bryan O'Donoghue --- include/linux/phy/phy-mipi-dphy.h | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/include/linux/phy/phy-mipi-dphy.h b/include/linux/phy/phy-mipi= -dphy.h index 76d41580e225a..f7b4ad29e6f83 100644 --- a/include/linux/phy/phy-mipi-dphy.h +++ b/include/linux/phy/phy-mipi-dphy.h @@ -299,6 +299,13 @@ struct phy_configure_opts_mipi_dphy { * Physical lane number used as the clock lane. */ unsigned char clock_lane_position; + + /** + * @clock_lane_polarity: + * + * Clock lane polarity. True means inverted. + */ + bool clock_lane_polarity; }; =20 int phy_mipi_dphy_get_default_config(unsigned long pixel_clock, --=20 2.52.0