drivers: ssd16xx: Add support for the ssd1680

Add support for the SSD1680 EPD driver chip with support for up to
296x176 pixel displays.

Signed-off-by: Andreas Sandberg <[email protected]>

Author: andysan

drivers/display/Kconfig.ssd16xx

@@ -10,6 +10,7 @@ config SSD16XX
 		DT_HAS_SOLOMON_SSD1608_ENABLED || \
 		DT_HAS_SOLOMON_SSD1673_ENABLED || \
 		DT_HAS_SOLOMON_SSD1675A_ENABLED || \
+		DT_HAS_SOLOMON_SSD1680_ENABLED || \
 		DT_HAS_SOLOMON_SSD1681_ENABLED
 	select SPI
 	help

drivers/display/ssd16xx.c

@@ -990,6 +990,17 @@ static struct ssd16xx_quirks quirks_solomon_ssd1675a = {
 };
 #endif
 
+#if DT_HAS_COMPAT_STATUS_OKAY(solomon_ssd1680)
+static const struct ssd16xx_quirks quirks_solomon_ssd1680 = {
+	.max_width = 296,
+	.max_height = 176,
+	.pp_width_bits = 8,
+	.pp_height_bits = 16,
+	.ctrl2_full = SSD16XX_GEN2_CTRL2_DISPLAY,
+	.ctrl2_partial = SSD16XX_GEN2_CTRL2_DISPLAY | SSD16XX_GEN2_CTRL2_MODE2,
+};
+#endif
+
 #if DT_HAS_COMPAT_STATUS_OKAY(solomon_ssd1681)
 static struct ssd16xx_quirks quirks_solomon_ssd1681 = {
 	.max_width = 200,
@@ -1087,5 +1098,7 @@ DT_FOREACH_STATUS_OKAY_VARGS(solomon_ssd1673, SSD16XX_DEFINE,
 			     &quirks_solomon_ssd1673);
 DT_FOREACH_STATUS_OKAY_VARGS(solomon_ssd1675a, SSD16XX_DEFINE,
 			     &quirks_solomon_ssd1675a);
+DT_FOREACH_STATUS_OKAY_VARGS(solomon_ssd1680, SSD16XX_DEFINE,
+			     &quirks_solomon_ssd1680);
 DT_FOREACH_STATUS_OKAY_VARGS(solomon_ssd1681, SSD16XX_DEFINE,
 			     &quirks_solomon_ssd1681);

dts/bindings/display/solomon,ssd1680.yaml

@@ -0,0 +1,8 @@
+# Copyright (c) 2022 Andreas Sandberg
+# SPDX-License-Identifier: Apache-2.0
+
+description: Solomon Systech SSD1680 296x176 EPD display controller
+
+compatible: "solomon,ssd1680"
+
+include: solomon,ssd16xx-common.yaml