linux-kernel - [PATCH v3 0/5] drm/sitronix/st7571-i2c: Add support for the ST7567 Controller

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <20250715110411.448343-1-javierm@redhat.com>
Date: Tue, 15 Jul 2025 13:03:49 +0200
From: Javier Martinez Canillas <javierm@...hat.com>
To: linux-kernel@...r.kernel.org
Cc: ipedrosa@...hat.com,
	Javier Martinez Canillas <javierm@...hat.com>,
	Conor Dooley <conor+dt@...nel.org>,
	David Airlie <airlied@...il.com>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
	Marcus Folkesson <marcus.folkesson@...il.com>,
	Maxime Ripard <mripard@...nel.org>,
	Rob Herring <robh@...nel.org>,
	Simona Vetter <simona@...ll.ch>,
	Thomas Zimmermann <tzimmermann@...e.de>,
	devicetree@...r.kernel.org,
	dri-devel@...ts.freedesktop.org
Subject: [PATCH v3 0/5] drm/sitronix/st7571-i2c: Add support for the ST7567 Controller

This patch-series adds support for the Sitronix ST7567 Controller, which is a
monochrome Dot Matrix LCD Controller that has SPI, I2C and parallel interfaces.

The st7571-i2c driver only has support for I2C so displays using other transport
interfaces are currently not supported.

The DRM_FORMAT_R1 pixel format and data commands are the same than what is used
by the ST7571 controller, so only is needed a different callback that implements
the expected initialization sequence for the ST7567 chip and a different callback
to parse the sub-set of DT properties needed by the ST7567.

Patches #1 and #2 are some trivial cleanups for the driver.

Patch #3 is a preparatory change that adds the level of indirection for the DT
parsing logic.

Patch #4 adds a Device Tree binding schema for the ST7567 Controller.

Patch #5 finally extends the st7571-i2c driver to also support the ST7567 device.

Changes in v3:
- Fix reset typo in commit message (Marcus Folkesson).
- Explicitly set ST7571_SET_REVERSE(0) instead of relying on defaults.

Changes in v2:
- Use a different parse DT function (Thomas Zimmermann).

Javier Martinez Canillas (5):
  drm/sitronix/st7571-i2c: Fix encoder callbacks function names
  drm/sitronix/st7571-i2c: Log probe deferral cause for GPIO get failure
  drm/sitronix/st7571-i2c: Add an indirection level to parse DT
  dt-bindings: display: Add Sitronix ST7567 LCD Controller
  drm/sitronix/st7571-i2c: Add support for the ST7567 Controller

 .../bindings/display/sitronix,st7567.yaml     | 63 ++++++++++++
 MAINTAINERS                                   |  1 +
 drivers/gpu/drm/sitronix/st7571-i2c.c         | 95 +++++++++++++++++--
 3 files changed, 151 insertions(+), 8 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/display/sitronix,st7567.yaml

-- 
2.49.0

base-commit: d5ca45b508916144d1e8be1102bedab405c1f6fb
branch: drm-st7567-v3