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[211.23.39.77]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-74eb9f4af33sm9034577b3a.122.2025.07.13.20.00.00 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 13 Jul 2025 20:00:02 -0700 (PDT) From: LiangCheng Wang Subject: [PATCH v2 0/3] Add support for Mayqueen Pixpaper e-ink panel Date: Mon, 14 Jul 2025 10:59:38 +0800 Message-Id: <20250714-drm-v2-0-5d1a2e12796c@gmail.com> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-B4-Tracking: v=1; b=H4sIAJpydGgC/1WMQQ7CIBBFr9LMWsxARBpX3sN0QRhoJ5FioCGah ruL3bl8P/+9HYrP7Avchh2yr1w4rR3UaQC32HX2gqkzKFQaDY6CchRXVJICGqnJQH++sg/8Piq PqfPCZUv5c0Sr/K3/fpUCxUWj1oEsudHe52j5eXYpwtRa+wKED8UslgAAAA== X-Change-ID: 20250708-drm-6021df0715d7 To: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Sumit Semwal , =?utf-8?q?Christian_K=C3=B6nig?= , Wig Cheng Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-media@vger.kernel.org, linaro-mm-sig@lists.linaro.org, LiangCheng Wang X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1752462000; l=2106; i=zaq14760@gmail.com; h=from:subject:message-id; bh=LZFxIGcaYkZxoWI8vAMHadDEgvq9NNtsNON8+he1Adc=; b=AzcZ8ioBOR/11C1FrgwE4k8EJtaaO5keijkJ/PnwnqqSPRedLhDtKBYmTk9UYQWNx97c53s8l /znIl5IF3FyDp0E9Dx8MAo39n3kDa4P4zg0Vb1fNS3AexJJmCduCUbQ X-Developer-Key: i=zaq14760@gmail.com; a=ed25519; pk=5IaLhzvMqasgGPT47dsa8HEpfb0/Dv2BZC0TzSLj6E0= This patch series adds support for the Mayqueen Pixpaper e-ink display panel, controlled via SPI. The series includes: - A new vendor-prefix entry for "mayqueen" - Device tree binding documentation for the Pixpaper panel - A DRM tiny driver implementation for the Pixpaper panel - A MAINTAINERS entry for the Pixpaper DRM driver and binding The panel supports 122x250 resolution with XRGB8888 format and uses SPI, along with GPIO lines for reset, busy, and data/command control. The driver has been tested on: - Raspberry Pi 2 Model B with Linux kernel 6.16. --- Changes in v2: - Reordered patches so that DT bindings come before the driver (suggested by Rob Herring) - Fixed sparse warning: removed duplicate `.reset` initializer in `pixpaper_plane_funcs` - Fixed checkpatch issues reported by Media CI: - Removed unnecessary blank line before closing brace - Moved opening parentheses up to function call lines (e.g., `DRM_WARN(...)`) - Fixed alignment of conditionals - Fixed `dev_warn(` and `drm_universal_plane_init(` formatting - Thanks to Rob Herring for ack on vendor-prefix patch - Link to v1: https://lore.kernel.org/r/20250708-drm-v1-0-45055fdadc8a@gmail.com Thanks for the feedback! Best regards, LiangCheng Wang --- LiangCheng Wang (2): dt-bindings: display: Add Mayqueen Pixpaper e-ink panel drm: tiny: Add support for Mayqueen Pixpaper e-ink panel Wig Cheng (1): dt-bindings: vendor-prefixes: Add Mayqueen name .../bindings/display/mayqueen,pixpaper.yaml | 63 ++ .../devicetree/bindings/vendor-prefixes.yaml | 2 + MAINTAINERS | 6 + drivers/gpu/drm/tiny/Kconfig | 15 + drivers/gpu/drm/tiny/Makefile | 1 + drivers/gpu/drm/tiny/pixpaper.c | 777 +++++++++++++++++++++ 6 files changed, 864 insertions(+) --- base-commit: d7b8f8e20813f0179d8ef519541a3527e7661d3a change-id: 20250708-drm-6021df0715d7 Best regards, -- LiangCheng Wang