linux-kernel - [PATCH 0/3] drivers/auxdisplay: Provide support for JHD1313

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Message-Id: <20191128105508.3916-1-kbingham@kernel.org>
Date:   Thu, 28 Nov 2019 10:55:05 +0000
From:   kbingham@...nel.org
To:     linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
        Rob Herring <robh+dt@...nel.org>,
        Miguel Ojeda Sandonis <miguel.ojeda.sandonis@...il.com>,
        Simon Goda <simon.goda@...los.com>
Cc:     Kieran Bingham <kbingham@...nel.org>
Subject: [PATCH 0/3] drivers/auxdisplay: Provide support for JHD1313

From: Kieran Bingham <kbingham@...nel.org>

The JHD1313 is a 16x2 LCD controller with an I2C interface. It is used in the
Seeed RGB Backlight LCD [0] which has the LCD at the I2C address 0x3e. (A
PCA9633 is also available at 0x62, to control the RGB backlight)

This series introduces a new Vendor prefix for JHD, and introduces bindings for
the LCD controller. A driver for the JHD1313 is added to the auxdisplay
subsystem providing a charlcd to control the display.

[0] http://wiki.seeedstudio.com/Grove-LCD_RGB_Backlight/

Because this interface is quite common, and generic - this could be potentially
extended to other similar devices later, possibly with optional bindings to
configure the display width and height. If so - perhaps a more generic naming
for the binding/driver might be appropriate at that time.

Kieran Bingham (3):
  dt-bindings: vendor: Add JHD LCD vendor
  dt-bindings: auxdisplay: Add JHD1313 bindings
  drivers: auxdisplay: Add JHD1313 I2C interface driver

 .../bindings/auxdisplay/jhd,jhd1313.yaml      |  33 ++++++
 .../devicetree/bindings/vendor-prefixes.yaml  |   2 +
 MAINTAINERS                                   |   4 +
 drivers/auxdisplay/Kconfig                    |  12 ++
 drivers/auxdisplay/Makefile                   |   1 +
 drivers/auxdisplay/jhd1313.c                  | 111 ++++++++++++++++++
 6 files changed, 163 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/auxdisplay/jhd,jhd1313.yaml
 create mode 100644 drivers/auxdisplay/jhd1313.c

-- 
2.20.1