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

From: kbingham
Date: Thu Nov 28 2019 - 05:55:17 EST


From: Kieran Bingham <kbingham@xxxxxxxxxx>

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

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2.20.1