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drivers: display: st7789v: Add support to disable inversion mode

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For historical reasons, inversion mode is enabled by default in the
current implementation. This commit introduces an `inversion-off`
boolean DTS property, allowing it to be disabled if necessary.

Signed-off-by: Chen Xingyu <hi@xingrz.me>
This commit is contained in:
Chen Xingyu 2024-04-18 12:28:26 +08:00 • committed by Carles Cufí
commit 979cd1dfe8
2 changed files with 11 additions and 1 deletions
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8
drivers/display/display_st7789v.c
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@ -37,6 +37,7 @@ struct st7789v_config {
uint8_t gamma; uint8_t gamma;
uint8_t colmod; uint8_t colmod;
uint8_t lcm; uint8_t lcm;
bool inversion_on;
uint8_t porch_param[5]; uint8_t porch_param[5];
uint8_t cmd2en_param[4]; uint8_t cmd2en_param[4];
uint8_t pwctrl1_param[2]; uint8_t pwctrl1_param[2];
@ -298,7 +299,11 @@ static void st7789v_lcd_init(const struct device *dev)
tmp = config->gamma; tmp = config->gamma;
st7789v_transmit(dev, ST7789V_CMD_GAMSET, &tmp, 1); st7789v_transmit(dev, ST7789V_CMD_GAMSET, &tmp, 1);
st7789v_transmit(dev, ST7789V_CMD_INV_ON, NULL, 0); if (config->inversion_on) {
st7789v_transmit(dev, ST7789V_CMD_INV_ON, NULL, 0);
} else {
st7789v_transmit(dev, ST7789V_CMD_INV_OFF, NULL, 0);
}
st7789v_transmit(dev, ST7789V_CMD_PVGAMCTRL, st7789v_transmit(dev, ST7789V_CMD_PVGAMCTRL,
(uint8_t *)config->pvgam_param, (uint8_t *)config->pvgam_param,
@ -411,6 +416,7 @@ static const struct display_driver_api st7789v_api = {
.gamma = DT_INST_PROP(inst, gamma), \ .gamma = DT_INST_PROP(inst, gamma), \
.colmod = DT_INST_PROP(inst, colmod), \ .colmod = DT_INST_PROP(inst, colmod), \
.lcm = DT_INST_PROP(inst, lcm), \ .lcm = DT_INST_PROP(inst, lcm), \
.inversion_on = !DT_INST_PROP(inst, inversion_off), \
.porch_param = DT_INST_PROP(inst, porch_param), \ .porch_param = DT_INST_PROP(inst, porch_param), \
.cmd2en_param = DT_INST_PROP(inst, cmd2en_param), \ .cmd2en_param = DT_INST_PROP(inst, cmd2en_param), \
.pwctrl1_param = DT_INST_PROP(inst, pwctrl1_param), \ .pwctrl1_param = DT_INST_PROP(inst, pwctrl1_param), \

4
dts/bindings/display/sitronix,st7789v.yaml
View file

@ -77,6 +77,10 @@ properties:
required: true required: true
description: Gamma Setting description: Gamma Setting
inversion-off:
type: boolean
description: Inversion Off
porch-param: porch-param:
type: uint8-array type: uint8-array
required: true required: true