Reset the Elecrow's GT911 the way Elecrow's own V3.0 example does (0.2.96, firmware 0.2.82)

The 2 ms reset of ESPHome's expander support (0.2.81) left the chip silent: "Calibration error" with the PCA9557
answering at 0x18. A component of smart_display's (elecrow_touch_reset.h, setup priority 700: after the I2C bus,
before the GT911 driver) writes the expander as Elecrow's V3.0 ESPHome example does: every pin an output and low,
20 ms, the reset released, 100 ms, the interrupt line back to an input. The driver's reset and interrupt pins are gone.

components/smart_display/__init__.py

@@ -7,12 +7,16 @@ into a screen's YAML.
 
 `smart_display: partitions: 4mb_wide_slots` (firmware 0.2.79) builds with one of the partition tables of partitions.py
 instead of ESPHome's own: two update slots of 1,984 KB on a 4 MB ESP32-S3, which the Elecrow CrowPanel 7.0" needs.
+
+`smart_display: elecrow_touch_reset: {i2c_id: ..., address: 0x18}` (firmware 0.2.82) brings the GT911 of the Elecrow
+CrowPanel 7.0" V3.0 out of reset through its PCA9557 before the touch driver runs (elecrow_touch_reset.h).
 """
 import logging
 
 import esphome.codegen as cg
-from esphome.components import esp32
+from esphome.components import esp32, i2c
 import esphome.config_validation as cv
+from esphome.const import CONF_ID
 from esphome.core import CORE
 from esphome.helpers import write_file_if_changed
 
@@ -24,6 +28,10 @@ _LOGGER = logging.getLogger(__name__)
 
 CONF_LANGUAGE = "language"
 CONF_PARTITIONS = "partitions"
+CONF_ELECROW_TOUCH_RESET = "elecrow_touch_reset"
+
+elecrow_ns = cg.global_ns.namespace("elecrow")
+TouchReset = elecrow_ns.class_("TouchReset", cg.Component, i2c.I2CDevice)
 
 
 def _language(value):
@@ -36,6 +44,8 @@ def _language(value):
 CONFIG_SCHEMA = cv.Schema({
     cv.Optional(CONF_LANGUAGE, default="en"): _language,
     cv.Optional(CONF_PARTITIONS): cv.one_of(*partitions.TABLES, lower=True),
+    cv.Optional(CONF_ELECROW_TOUCH_RESET): cv.Schema({cv.GenerateID(): cv.declare_id(TouchReset)})
+    .extend(cv.COMPONENT_SCHEMA).extend(i2c.i2c_device_schema(0x18)),
 })
 
 
@@ -51,3 +61,9 @@ async def to_code(config):
         table = CORE.relative_build_path("smart_display_partitions.csv")
         write_file_if_changed(table, partitions.TABLES[config[CONF_PARTITIONS]])
         esp32.add_extra_build_file("partitions.csv", table)
+    if CONF_ELECROW_TOUCH_RESET in config:
+        conf = config[CONF_ELECROW_TOUCH_RESET]
+        reset = cg.new_Pvariable(conf[CONF_ID])
+        await cg.register_component(reset, conf)
+        await i2c.register_i2c_device(reset, conf)
+        cg.add_build_flag("-DESP_SCREENS_ELECROW_TOUCH_RESET=1")