chore(docs): update Zephyr documentation

docs/integration/os/zephyr.rst

@@ -267,6 +267,7 @@ The pseudo device binding descriptions can be found at:
 - `button input <https://docs.zephyrproject.org/latest/build/dts/api/bindings/input/zephyr,lvgl-button-input.html>`__
 - `pointer input <https://docs.zephyrproject.org/latest/build/dts/api/bindings/input/zephyr,lvgl-pointer-input.html>`__
 - `encoder input <https://docs.zephyrproject.org/latest/build/dts/api/bindings/input/zephyr,lvgl-encoder-input.html>`__
+- `keypad input <https://docs.zephyrproject.org/latest/build/dts/api/bindings/input/zephyr,lvgl-keypad-input.html>`__
 
 Essentially those buffer the :code:`input_event` generated by the device pointed to by the :code:`input` phandle or if left
 empty the binding captures all events regardless of the source. You do not have to instantiate or manage the devices yourself,
@@ -287,6 +288,7 @@ Zephyr使用devicetree描述语言来创建和管理LVGL输入设备。
 - `按钮输入 <https://docs.zephyrproject.org/latest/build/dts/api/bindings/input/zephyr,lvgl-button-input.html>`__
 - `指针输入 <https://docs.zephyrproject.org/latest/build/dts/api/bindings/input/zephyr,lvgl-pointer-input.html>`__
 - `编码器输入 <https://docs.zephyrproject.org/latest/build/dts/api/bindings/input/zephyr,lvgl-encoder-input.html>`__
+- `键盘输入 <https://docs.zephyrproject.org/latest/build/dts/api/bindings/input/zephyr,lvgl-keypad-input.html>`__
 
 这些设备本质上缓冲了由 :code:`input phandle` 指向的设备生成的 :code:`input_event`，
 如果留空，则绑定会捕获所有事件，而不管其来源如何。
@@ -382,6 +384,76 @@ targets. For more information refer to the
 更多信息请参阅 `应用程序开发指南 <https://docs.zephyrproject.org/latest/develop/application/index.html#application-configuration>`__。  
 
 
+Performance Tuning in LVGL（LVGL 性能调优）
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+.. raw:: html
+
+   <details>
+     <summary>显示原文</summary>
+
+To optimize LVGL's performance, several `kconfig` options can be configured:
+
+- **CONFIG_LV_Z_VDB_SIZE**: Sets the rendering buffer size as a percentage of the display area, adjustable from 1% to 100%. Larger buffers can enhance performance, especially when used with **CONFIG_LV_Z_FULL_REFRESH**.
+
+- **CONFIG_LV_Z_DOUBLE_VDB**: Enables the use of two rendering buffers, allowing for parallel rendering and data flushing, thus improving responsiveness and reducing latency.
+
+- **CONFIG_LV_Z_VDB_ALIGN**: Ensures that the rendering buffer is properly aligned, which is critical for efficient memory access based on the color depth.
+
+- **CONFIG_LV_Z_VBD_CUSTOM_SECTION**: Allows rendering buffers to be placed in a custom memory section (e.g., `.lvgl_buf`), useful for leveraging specific memory types like tightly coupled or external memory to enhance performance.
+
+.. raw:: html
+
+   </details>
+   <br>
+
+
+为了优化 LVGL 的性能，可以配置多个 `kconfig` 选项：
+
+- **CONFIG_LV_Z_VDB_SIZE**：设置渲染缓冲区大小为显示区域的百分比，可调节范围从 1% 到 100%。较大的缓冲区可以提高性能，特别是与 **CONFIG_LV_Z_FULL_REFRESH** 一起使用时。
+
+- **CONFIG_LV_Z_DOUBLE_VDB**：启用使用两个渲染缓冲区，允许并行渲染和数据刷新，从而提高响应性和减少延迟。
+
+- **CONFIG_LV_Z_VDB_ALIGN**：确保渲染缓冲区正确对齐，这对于基于颜色深度的有效内存访问至关重要。
+
+- **CONFIG_LV_Z_VBD_CUSTOM_SECTION**：允许将渲染缓冲区放置在自定义内存段（例如 `.lvgl_buf`），有助于利用特定类型的内存（如紧密耦合或外部内存）来提高性能。
+
+
+Zephyr ≤ 3.7.0 Specific Options（Zephyr ≤ 3.7.0 特定选项）
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+.. raw:: html
+
+   <details>
+     <summary>显示原文</summary>
+
+For Zephyr versions 3.7.0 and below, additional options are available to manage LVGL's frame flushing:
+
+- **CONFIG_LV_Z_FLUSH_THREAD**: Enables flushing LVGL frames in a separate thread, allowing the main thread to continue rendering the next frame simultaneously. This option can be disabled if the performance gain is not needed.
+
+  - **CONFIG_LV_Z_FLUSH_THREAD_STACK_SIZE**: Specifies the stack size for the flush thread, with a default of 1024 bytes.
+
+  - **CONFIG_LV_Z_FLUSH_THREAD_PRIO**: Sets the priority of the flush thread, with a default priority of 0, indicating cooperative priority.
+
+For newer versions of Zephyr, the OSAL (Operating System Abstraction Layer) can be utilized, which takes care of the flushing.
+
+.. raw:: html
+
+   </details>
+   <br>
+
+
+对于 Zephyr 3.7.0 及以下版本，还有额外的选项可用于管理 LVGL 的帧刷新：
+
+- **CONFIG_LV_Z_FLUSH_THREAD**: 在单独的线程中刷新 LVGL 帧，允许主线程同时继续渲染下一帧。如果不需要性能增益，可以禁用此选项。
+
+  - **CONFIG_LV_Z_FLUSH_THREAD_STACK_SIZE**: 指定刷新线程的堆栈大小，默认为 1024 字节。
+
+  - **CONFIG_LV_Z_FLUSH_THREAD_PRIO**: 设置刷新线程的优先级，默认优先级为 0，表示合作优先级。
+
+对于较新版的 Zephyr，可以使用 OSAL（操作系统抽象层），它负责处理刷新。
+
+
 Where can I find more information?（在哪里可以找到更多信息？ ）
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