17fd7a9d32
This patch adds Olimex Ltd. LCD-OLinuXino bridge panel driver. The panel is used with different LCDs (currently from 480x272 to 1280x800). A small EEPROM chip is used for identification, which holds some factory data and timing requirements. Signed-off-by: Stefan Mavrodiev <stefan@olimex.com> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Thierry Reding <treding@nvidia.com> Link: https://patchwork.freedesktop.org/patch/msgid/1531383729-13932-1-git-send-email-stefan@olimex.com
43 lines
1.3 KiB
Plaintext
43 lines
1.3 KiB
Plaintext
Binding for Olimex Ltd. LCD-OLinuXino bridge panel.
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This device can be used as bridge between a host controller and LCD panels.
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Currently supported LCDs are:
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- LCD-OLinuXino-4.3TS
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- LCD-OLinuXino-5
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- LCD-OLinuXino-7
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- LCD-OLinuXino-10
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The panel itself contains:
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- AT24C16C EEPROM holding panel identification and timing requirements
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- AR1021 resistive touch screen controller (optional)
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- FT5x6 capacitive touch screnn controller (optional)
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- GT911/GT928 capacitive touch screen controller (optional)
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The above chips share same I2C bus. The EEPROM is factory preprogrammed with
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device information (id, serial, etc.) and timing requirements.
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Touchscreen bingings can be found in these files:
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- input/touchscreen/goodix.txt
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- input/touchscreen/edt-ft5x06.txt
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- input/touchscreen/ar1021.txt
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Required properties:
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- compatible: should be "olimex,lcd-olinuxino"
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- reg: address of the configuration EEPROM, should be <0x50>
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- power-supply: phandle of the regulator that provides the supply voltage
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Optional properties:
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- enable-gpios: GPIO pin to enable or disable the panel
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- backlight: phandle of the backlight device attacked to the panel
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Example:
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&i2c2 {
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panel@50 {
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compatible = "olimex,lcd-olinuxino";
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reg = <0x50>;
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power-supply = <®_vcc5v0>;
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enable-gpios = <&pio 7 8 GPIO_ACTIVE_HIGH>;
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backlight = <&backlight>;
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};
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};
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