Claude review: arm64: dts: imx93: Add parallel display output nodes

[Claude Code Review Bot <claude-review@example.com>]

Patch Review

This patch adds DT nodes for the DPI bridge (inside `media_blk_ctrl`) and the LCDIF display controller, plus stubs for LDB and DSI endpoints on imx93.

**1. `assigned-clock-rates` has only 2 entries for 3 assigned clocks:**

```dts
assigned-clocks = <&clk IMX93_CLK_MEDIA_AXI>,
		  <&clk IMX93_CLK_MEDIA_APB>,
		  <&clk IMX93_CLK_MEDIA_DISP_PIX>;
assigned-clock-parents = <&clk IMX93_CLK_SYS_PLL_PFD1>,
			 <&clk IMX93_CLK_SYS_PLL_PFD1_DIV2>,
			 <&clk IMX93_CLK_VIDEO_PLL>;
assigned-clock-rates = <400000000>, <133333333>;
```

Three clocks are listed, three parents are specified, but only two rates. This is valid DT — omitted trailing rates mean "don't set a rate, just reparent." For `MEDIA_DISP_PIX` the rate is presumably determined by the mode, so only the parent is set. This is correct.

**2. Empty endpoint for output port:**

```dts
port@1 {
	reg = <1>;

	dpi_to_panel: endpoint {
	};
};
```

The output endpoint is left empty for board-level DTS files to fill in via `&dpi_to_panel` overrides. This is standard practice.

**3. LCDIF node placement and structure looks correct.** It's a sibling of `media_blk_ctrl` as expected and properly references the LCDIF-specific clocks and power domain.

**4. The imx93.dtsi additions** add stubs for LDB and DSI endpoints with correct reg values (1, 2), preparing for future LVDS and MIPI-DSI bridge support. Clean and forward-looking.

**5. Minor: the `dpi_bridge` label uses underscore while the node name `dpi-bridge` uses hyphen.** This is standard DT convention (labels use underscores, node names use hyphens), so no issue.

Overall, the DTS additions look correct and follow i.MX device tree conventions.

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Generated by Claude Code Patch Reviewer