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<div class=" wh_topic_content body "><main role="main"><article class="- topic/topic concept/concept topic concept" role="article" aria-labelledby="ariaid-title1"><span class="edit-link" style="font-size:12px; opacity:0.6; text-align:right; vertical-align:middle"><a target="_blank" href="http://172.16.35.88/tasks/jdssno1uvvbf2mltu9kb9v3if05d5gopuakboe8hlud18rma/edit/F:/aicdita/aicdita-cn/topics/sdk/display/display_parameter_panel_dbi.dita">Edit online</a></span><h1 class="- topic/title title topictitle1" id="ariaid-title1">Panel_DBI</h1><div class="date inPage">4 Dec 2024</div><div style="color: gray;">
Read time: 1 minute(s)
</div><div class="- topic/body concept/conbody body conbody"><div class="- topic/p p" data-ofbid="d256263e25__20250121171708"><span class="+ topic/keyword pr-d/parmname keyword parmname">panel_dbi</span> 结点的详细参数配置和描述如下:<div class="- topic/note note note note_note" id="display_dts_parameter_panel_dsi__note_gj3_chs_ldc" data-ofbid="display_dts_parameter_panel_dsi__note_gj3_chs_ldc"><span class="note__title">注:</span> 相关宏定义取值在文件
<span class="+ topic/ph sw-d/filepath ph filepath">include/dt-bindings/display/artinchip,aic-disp.h</span>
中。关于各参数的宏定义取值描述,可查看<a class="- topic/xref xref" href="display_parameter_panel_dbi.html#display_dts_parameter_panel_dsi__section_wpg_2vs_ldc">宏定义取值</a></div><pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="display_dts_parameter_panel_dsi__codeblock_clc_lxf_d1c" data-ofbid="display_dts_parameter_panel_dsi__codeblock_clc_lxf_d1c">panel_dbi {
compatible = <span class="hl-string">"artinchip,aic-dbi-panel-simple"</span>;
status = <span class="hl-string">"okay"</span>;
port {
panel_dbi_in: endpoint {
remote-endpoint = &lt;&amp;dbi0_out&gt;;
};
};
};</pre></div><div class="table-container"><table class="- topic/table table frame-all" id="display_dts_parameter_panel_dsi__table_sty_bls_ldc" data-ofbid="display_dts_parameter_panel_dsi__table_sty_bls_ldc" data-cols="4"><caption class="- topic/title title tablecap" data-caption-side="top" data-is-repeated="true"><span class="table--title-label"><span class="table--title-label-number"> 1</span><span class="table--title-label-punctuation">. </span></span><span class="table--title"><span class="+ topic/keyword pr-d/parmname keyword parmname">panel_dsi</span> 节点参数描述</span></caption><colgroup><col style="width:14.666666666666666%"/><col style="width:14.666666666666666%"/><col style="width:57.333333333333336%"/><col style="width:13.333333333333334%"/></colgroup><thead class="- topic/thead thead"><tr class="- topic/row"><th class="- topic/entry entry colsep-1 rowsep-1" id="display_dts_parameter_panel_dsi__table_sty_bls_ldc__entry__1">参数名称</th><th class="- topic/entry entry colsep-1 rowsep-1" id="display_dts_parameter_panel_dsi__table_sty_bls_ldc__entry__2">类型</th><th class="- topic/entry entry colsep-1 rowsep-1" id="display_dts_parameter_panel_dsi__table_sty_bls_ldc__entry__3">描述</th><th class="- topic/entry entry colsep-0 rowsep-1" id="display_dts_parameter_panel_dsi__table_sty_bls_ldc__entry__4">是否必需</th></tr></thead><tbody class="- topic/tbody tbody"><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="display_dts_parameter_panel_dsi__table_sty_bls_ldc__entry__1">
<p class="- topic/p p" data-ofbid="d256263e64__20250121171708">backlight</p>
</td><td class="- topic/entry entry colsep-1 rowsep-1" headers="display_dts_parameter_panel_dsi__table_sty_bls_ldc__entry__2">-</td><td class="- topic/entry entry colsep-1 rowsep-1" headers="display_dts_parameter_panel_dsi__table_sty_bls_ldc__entry__3">屏幕的 pwm-backlight 配置节点。</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="display_dts_parameter_panel_dsi__table_sty_bls_ldc__entry__4" rowspan="2">Optional</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="display_dts_parameter_panel_dsi__table_sty_bls_ldc__entry__1">
<p class="- topic/p p" data-ofbid="d256263e76__20250121171708">enable-gpios</p>
</td><td class="- topic/entry entry colsep-1 rowsep-1" headers="display_dts_parameter_panel_dsi__table_sty_bls_ldc__entry__2">-</td><td class="- topic/entry entry colsep-1 rowsep-1" headers="display_dts_parameter_panel_dsi__table_sty_bls_ldc__entry__3">预留的屏幕使能引脚,可用于控制屏幕供电,不使用 pwm-backlight 的情况下亦可控制屏幕背光。</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="display_dts_parameter_panel_dsi__table_sty_bls_ldc__entry__1">port</td><td class="- topic/entry entry colsep-1 rowsep-1" headers="display_dts_parameter_panel_dsi__table_sty_bls_ldc__entry__2">-</td><td class="- topic/entry entry colsep-1 rowsep-1" headers="display_dts_parameter_panel_dsi__table_sty_bls_ldc__entry__3">显示接口输入端口,关联 DBI 结点。</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="display_dts_parameter_panel_dsi__table_sty_bls_ldc__entry__4">Required</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="display_dts_parameter_panel_dsi__table_sty_bls_ldc__entry__1">disp-dither</td><td class="- topic/entry entry colsep-1 rowsep-1" headers="display_dts_parameter_panel_dsi__table_sty_bls_ldc__entry__2">-</td><td class="- topic/entry entry colsep-1 rowsep-1" headers="display_dts_parameter_panel_dsi__table_sty_bls_ldc__entry__3">色彩抖动,使图像过度更平滑。当内存数据为 8bit ,但输出为 6bit 或者 5bit 时,使能 dither
能让图像过度更平滑,否则直接丢弃低位 bit。<p class="- topic/p p" data-ofbid="d256263e99__20250121171708">配置 dither 时默认使能随机 dither
,获取更好的显示效果。</p></td><td class="- topic/entry entry colsep-0 rowsep-0" headers="display_dts_parameter_panel_dsi__table_sty_bls_ldc__entry__4" rowspan="4">Optional</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="display_dts_parameter_panel_dsi__table_sty_bls_ldc__entry__1">tearing-effect</td><td class="- topic/entry entry colsep-1 rowsep-1" headers="display_dts_parameter_panel_dsi__table_sty_bls_ldc__entry__2">-</td><td class="- topic/entry entry colsep-1 rowsep-1" headers="display_dts_parameter_panel_dsi__table_sty_bls_ldc__entry__3">
<p class="- topic/p p" data-ofbid="d256263e110__20250121171708">TE 信号响应模式,配合屏幕 TE 信号使用,控制 DE 模块的输出,避免 LCD 屏幕出现撕裂现象。</p>
<ul class="- topic/ul ul" id="display_dts_parameter_panel_dsi__ul_agx_wwf_d1c" data-ofbid="display_dts_parameter_panel_dsi__ul_agx_wwf_d1c"><li class="- topic/li li" data-ofbid="d256263e114__20250121171708">
<p class="- topic/p p" data-ofbid="d256263e116__20250121171708">连续刷新 (default) :忽略 TE 信号, 连续刷新</p>
</li><li class="- topic/li li" data-ofbid="d256263e119__20250121171708">
<p class="- topic/p p" data-ofbid="d256263e121__20250121171708">手动刷新DE timging enable 后在下一个 TE 信号更新画面</p>
</li><li class="- topic/li li" data-ofbid="d256263e124__20250121171708">
<p class="- topic/p p" data-ofbid="d256263e126__20250121171708">自动刷新: 每收到一个 TE 信号,自动更新画面,更新期间忽略 TE 信号</p>
</li></ul>
<p class="- topic/p p" data-ofbid="d256263e130__20250121171708">手动刷新和自动刷新模式下,需要设定 TE 脉冲宽度,用于检测屏幕 TE 信号。</p>
</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="display_dts_parameter_panel_dsi__table_sty_bls_ldc__entry__1">te-pulse-width</td><td class="- topic/entry entry colsep-1 rowsep-1" headers="display_dts_parameter_panel_dsi__table_sty_bls_ldc__entry__2">-</td><td class="- topic/entry entry colsep-1 rowsep-1" headers="display_dts_parameter_panel_dsi__table_sty_bls_ldc__entry__3">TE 脉冲宽度,用于检测 TE 同步信号的有效状态,建议设为 5。</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-0" headers="display_dts_parameter_panel_dsi__table_sty_bls_ldc__entry__1">
<p class="- topic/p p" data-ofbid="d256263e143__20250121171708">display-timings</p>
</td><td class="- topic/entry entry colsep-1 rowsep-0" headers="display_dts_parameter_panel_dsi__table_sty_bls_ldc__entry__2">-</td><td class="- topic/entry entry colsep-1 rowsep-0" headers="display_dts_parameter_panel_dsi__table_sty_bls_ldc__entry__3">屏的时序信号。由屏厂提供。</td></tr></tbody></table></div><section class="- topic/section section" id="display_dts_parameter_panel_dsi__section_wpg_2vs_ldc" data-ofbid="display_dts_parameter_panel_dsi__section_wpg_2vs_ldc"><h2 class="- topic/title title sectiontitle">宏定义取值</h2>
<div class="table-container"><table class="- topic/table table frame-all" id="display_dts_parameter_panel_dsi__table_s1v_c2t_ldc" data-ofbid="display_dts_parameter_panel_dsi__table_s1v_c2t_ldc" data-cols="3"><caption class="- topic/title title tablecap" data-caption-side="top" data-is-repeated="true"><span class="table--title-label"><span class="table--title-label-number"> 2</span><span class="table--title-label-punctuation">. </span></span><span class="table--title"><span class="+ topic/keyword pr-d/parmname keyword parmname">disp-dither</span> 宏定义取值</span></caption><colgroup><col style="width:33.33333333333333%"/><col style="width:33.33333333333333%"/><col style="width:33.33333333333333%"/></colgroup><thead class="- topic/thead thead"><tr class="- topic/row"><th class="- topic/entry entry colsep-1 rowsep-1" id="display_dts_parameter_panel_dsi__table_s1v_c2t_ldc__entry__1">颜色输出深度</th><th class="- topic/entry entry colsep-1 rowsep-1" id="display_dts_parameter_panel_dsi__table_s1v_c2t_ldc__entry__2">macro</th><th class="- topic/entry entry colsep-0 rowsep-1" id="display_dts_parameter_panel_dsi__table_s1v_c2t_ldc__entry__3">value</th></tr></thead><tbody class="- topic/tbody tbody"><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="display_dts_parameter_panel_dsi__table_s1v_c2t_ldc__entry__1">
<p class="- topic/p p" data-ofbid="d256263e176__20250121171708">R 分量输出 5bit</p>
<p class="- topic/p p" data-ofbid="d256263e179__20250121171708">G 分量输出 6bit</p>
<p class="- topic/p p" data-ofbid="d256263e182__20250121171708">B 分量输出 5bit</p>
</td><td class="- topic/entry entry colsep-1 rowsep-1" headers="display_dts_parameter_panel_dsi__table_s1v_c2t_ldc__entry__2">DITHER_RGB565</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="display_dts_parameter_panel_dsi__table_s1v_c2t_ldc__entry__3">0x1</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-0" headers="display_dts_parameter_panel_dsi__table_s1v_c2t_ldc__entry__1">
<p class="- topic/p p" data-ofbid="d256263e192__20250121171708">R 分量输出 6bit</p>
<p class="- topic/p p" data-ofbid="d256263e195__20250121171708">G 分量输出 6bit</p>
<p class="- topic/p p" data-ofbid="d256263e198__20250121171708">B 分量输出 6bit</p>
</td><td class="- topic/entry entry colsep-1 rowsep-0" headers="display_dts_parameter_panel_dsi__table_s1v_c2t_ldc__entry__2">DITHER_RGB666</td><td class="- topic/entry entry colsep-0 rowsep-0" headers="display_dts_parameter_panel_dsi__table_s1v_c2t_ldc__entry__3">0x2</td></tr></tbody></table></div>
<div class="table-container"><table class="- topic/table table frame-all" id="display_dts_parameter_panel_dsi__table_fy5_2vs_ldc" data-ofbid="display_dts_parameter_panel_dsi__table_fy5_2vs_ldc" data-cols="3"><caption class="- topic/title title tablecap" data-caption-side="top" data-is-repeated="true"><span class="table--title-label"><span class="table--title-label-number"> 3</span><span class="table--title-label-punctuation">. </span></span><span class="table--title"><span class="+ topic/keyword pr-d/parmname keyword parmname">tearing-effect</span> 宏定义取值</span></caption><colgroup><col style="width:33.33333333333333%"/><col style="width:33.33333333333333%"/><col style="width:33.33333333333333%"/></colgroup><thead class="- topic/thead thead"><tr class="- topic/row"><th class="- topic/entry entry colsep-1 rowsep-1" id="display_dts_parameter_panel_dsi__table_fy5_2vs_ldc__entry__1">TE mode</th><th class="- topic/entry entry colsep-1 rowsep-1" id="display_dts_parameter_panel_dsi__table_fy5_2vs_ldc__entry__2">macro</th><th class="- topic/entry entry colsep-0 rowsep-1" id="display_dts_parameter_panel_dsi__table_fy5_2vs_ldc__entry__3">value</th></tr></thead><tbody class="- topic/tbody tbody"><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="display_dts_parameter_panel_dsi__table_fy5_2vs_ldc__entry__1">连续刷新</td><td class="- topic/entry entry colsep-1 rowsep-1" headers="display_dts_parameter_panel_dsi__table_fy5_2vs_ldc__entry__2">TE_BYPASS</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="display_dts_parameter_panel_dsi__table_fy5_2vs_ldc__entry__3">0x0</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="display_dts_parameter_panel_dsi__table_fy5_2vs_ldc__entry__1">手动刷新</td><td class="- topic/entry entry colsep-1 rowsep-1" headers="display_dts_parameter_panel_dsi__table_fy5_2vs_ldc__entry__2">TE_HOLD</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="display_dts_parameter_panel_dsi__table_fy5_2vs_ldc__entry__3">0x1</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-0" headers="display_dts_parameter_panel_dsi__table_fy5_2vs_ldc__entry__1">自动刷新</td><td class="- topic/entry entry colsep-1 rowsep-0" headers="display_dts_parameter_panel_dsi__table_fy5_2vs_ldc__entry__2">TE_AUTO</td><td class="- topic/entry entry colsep-0 rowsep-0" headers="display_dts_parameter_panel_dsi__table_fy5_2vs_ldc__entry__3">0x2</td></tr></tbody></table></div>
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