[mipi_spi] Add M5STACK-ATOMS3R-ST7735 as a display panel configuration (#18673)

esphome/components/mipi_spi/models/ili.py

@@ -649,7 +649,7 @@ DriverChip(
         (0xF3, 0x52, 0xA4, 0x7F, 0x33, 0x34, 0xDF),
     ),
 )
-DriverChip(
+ST7735 = DriverChip(
     "ST7735",
     color_order=MODE_RGB,
     width=128,

esphome/components/mipi_spi/models/m5stack.py

@@ -4,6 +4,7 @@ from esphome.components.mipi import (
     GMCTRP1,
     IDMOFF,
     IFMODE,
+    MODE_BGR,
     PWCTR1,
     PWCTR2,
     SETEXTC,
@@ -11,7 +12,7 @@ from esphome.components.mipi import (
     DriverChip,
 )
 
-from .ili import ILI9341, ST7789V
+from .ili import ILI9341, ST7735, ST7789V
 
 # fmt: off
 DriverChip(
@@ -71,3 +72,23 @@ GC9107.extend(
     cs_pin=14,
     requires={"psram"},
 )
+
+# M5Stack AtomS3R (ST7735 revision - May 14, 2026+)
+ST7735.extend(
+    "M5STACK-ATOMS3R-ST7735",
+    native_width=132,
+    native_height=132,
+    width=128,
+    height=128,
+    offset_width=2,
+    offset_height=1,
+    pad_width=2,
+    pad_height=3,
+    data_rate="40MHz",
+    color_order=MODE_BGR,
+    invert_colors=True,
+    reset_pin=48,
+    dc_pin=42,
+    cs_pin=14,
+    requires={"psram"},
+)