linux-kernel - [PATCH v3 0/7] drm/sitronix/st7571: split up driver to support both I2C and SPI

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Message-Id: <20251215-st7571-split-v3-0-d5f3205c3138@gmail.com>
Date: Mon, 15 Dec 2025 10:46:42 +0100
From: Marcus Folkesson <marcus.folkesson@...il.com>
To: Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>, 
 Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>, 
 David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>, 
 Javier Martinez Canillas <javierm@...hat.com>, 
 Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>
Cc: dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org, 
 devicetree@...r.kernel.org, Marcus Folkesson <marcus.folkesson@...il.com>
Subject: [PATCH v3 0/7] drm/sitronix/st7571: split up driver to support
 both I2C and SPI

This series splits up the driver and finally implements
support for ST7571/ST7561 connected to a SPI bus.

I've not tested the SPI interface myself as I lack HW, but the
implementation should be okay from what I've read in the datasheet.

Signed-off-by: Marcus Folkesson <marcus.folkesson@...il.com>
---
Changes in v3:
- Add SPI example to the bindings doc (Thanks Javier)
- Select REGMAP rather than REGMAP_I2C (Thanks Javier)
- Fix gramatical errors in patch description (Thanks Javier)
- Link to v2: https://lore.kernel.org/r/20251027-st7571-split-v2-0-8352fb278d21@gmail.com

Changes in v2:
- Add MODULE_IMPORT_NS to st7571-i2c.c st7571-spi.c (Kernel test robot)
- Link to v1: https://lore.kernel.org/r/20251024-st7571-split-v1-0-d3092b98130f@gmail.com

---
Marcus Folkesson (7):
      drm/sitronix/st7571-i2c: rename 'struct drm_device' in st7571_device
      drm/sitronix/st7571-i2c: add 'struct device' to st7571_device
      drm/sitronix/st7571-i2c: move common structures to st7571.h
      drm/sitronix/st7571-i2c: make probe independent of hw interface
      drm/sitronix/st7571: split up the driver into a common and an i2c part
      drm/sitronix/st7571-spi: add support for SPI interface
      dt-bindings: display: sitronix,st7571: add example for SPI

 .../bindings/display/sitronix,st7571.yaml          |   25 +
 MAINTAINERS                                        |    3 +
 drivers/gpu/drm/sitronix/Kconfig                   |   38 +-
 drivers/gpu/drm/sitronix/Makefile                  |    2 +
 drivers/gpu/drm/sitronix/st7571-i2c.c              | 1003 +-------------------
 drivers/gpu/drm/sitronix/st7571-spi.c              |   76 ++
 drivers/gpu/drm/sitronix/st7571.c                  |  918 ++++++++++++++++++
 drivers/gpu/drm/sitronix/st7571.h                  |   91 ++
 8 files changed, 1187 insertions(+), 969 deletions(-)
---
base-commit: 6a7cef9f953e9edb2364edb769ac116126e6b98e
change-id: 20251024-st7571-split-c734b06106a4

Best regards,
-- 
Marcus Folkesson <marcus.folkesson@...il.com>