From fde5f881925adb9c74196f15140be4d7d4373cd2 Mon Sep 17 00:00:00 2001
From: Jesse Hills <3060199+jesserockz@users.noreply.github.com>
Date: Mon, 7 Jul 2025 16:36:34 +1200
Subject: [PATCH] [inkplate6] Require 240mhz cpu frequency (#9356)

---
 esphome/components/inkplate6/display.py | 15 +++++++++++++++
 tests/components/inkplate6/common.yaml  |  3 +++
 2 files changed, 18 insertions(+)

diff --git a/esphome/components/inkplate6/display.py b/esphome/components/inkplate6/display.py
index a7d31c0131..063fc8b0aa 100644
--- a/esphome/components/inkplate6/display.py
+++ b/esphome/components/inkplate6/display.py
@@ -1,6 +1,7 @@
 from esphome import pins
 import esphome.codegen as cg
 from esphome.components import display, i2c
+from esphome.components.esp32 import CONF_CPU_FREQUENCY
 import esphome.config_validation as cv
 from esphome.const import (
     CONF_FULL_UPDATE_EVERY,
@@ -13,7 +14,9 @@ from esphome.const import (
     CONF_PAGES,
     CONF_TRANSFORM,
     CONF_WAKEUP_PIN,
+    PLATFORM_ESP32,
 )
+import esphome.final_validate as fv
 
 DEPENDENCIES = ["i2c", "esp32"]
 AUTO_LOAD = ["psram"]
@@ -120,6 +123,18 @@ CONFIG_SCHEMA = cv.All(
 )
 
 
+def _validate_cpu_frequency(config):
+    esp32_config = fv.full_config.get()[PLATFORM_ESP32]
+    if esp32_config[CONF_CPU_FREQUENCY] != "240MHZ":
+        raise cv.Invalid(
+            "Inkplate requires 240MHz CPU frequency (set in esp32 component)"
+        )
+    return config
+
+
+FINAL_VALIDATE_SCHEMA = _validate_cpu_frequency
+
+
 async def to_code(config):
     var = cg.new_Pvariable(config[CONF_ID])
 
diff --git a/tests/components/inkplate6/common.yaml b/tests/components/inkplate6/common.yaml
index 31b14e6c73..6cb5d055b6 100644
--- a/tests/components/inkplate6/common.yaml
+++ b/tests/components/inkplate6/common.yaml
@@ -3,6 +3,9 @@ i2c:
     scl: 16
     sda: 17
 
+esp32:
+  cpu_frequency: 240MHz
+
 display:
   - platform: inkplate6
     id: inkplate_display