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标题: Linux rk3288 eDP+LVDS 双屏异显配置？ [打印本页]

作者: cooper 时间: 2020-4-27 19:49
标题: Linux rk3288 eDP+LVDS 双屏异显配置？
大家好：
现在已经实现了edp+lvds双屏同显，一个走的vopl，一个走的是vopb。
接着在实现rk3288平台的双屏异显，使用最新的linux4.4.194内核
下面我贴出设备树

作者: cooper 时间: 2020-4-27 19:52
320 &lvds_in_vopl {
321       status = "okay";
322 };
323
324 &lvds_in_vopb {
325       status = "disabled";
326 };
327
328 &route_lvds {
329       status = "okay";
330 };
331
332 &lvds {
333       dual-channel;
334
335       status = "okay";
336 };
337
338 &lvds_panel {
339       status = "okay";
340       compatible ="simple-panel";
341       backlight = <&backlight>;
342       bus-format = <MEDIA_BUS_FMT_RGB666_1X18>;
343       enable-delay-ms = <10>;
344       rockchip,data-mapping = "vesa";
345       rockchip,data-width = <24>;
346       rockchip,output = "lvds";
347
348       display-timings {
349                native-mode = <&v_lvds_panel>;
350                v_lvds_panel: timing0 {
351                      screen-type = <SCREEN_DUAL_LVDS>;
352                      lvds-format = <LVDS_8BIT_1>;
353                      out-face = <OUT_D888_P666>;
354
355                      clock-frequency = <144000000>;
356                      hactive = <1920>;
357                      vactive = <1080>;
358                      hback-porch = <20>;
359                      hfront-porch = <75>;
360                      hsync-len = <5>;
361                      vback-porch = <15>;
362                      vfront-porch = <25>;
363                      vsync-len = <10>;
364                      hsync-active = <0>;
365                      vsync-active = <0>;
366                      de-active = <0>;
367                      pixelclk-active = <0>;
368                };
369       };
370 };
371
372 &edp_phy {
373       status = "okay";
374 };
375
376 &edp_in_vopl {
377       status = "disabled";
378 };
379
380 &edp_in_vopb {
381       status = "okay";
382 };
383
384 &route_edp {
385       status = "okay";
386 };
387
388 &edp {
389
390       status = "okay";
391 };
392
393 &edp_panel {
394       status = "okay";
395       compatible = "simple-panel";
396       backlight = <&backlight>;
397       enable-delay-ms = <200>;
398
399       disp_timings: display-timings {
400                native-mode = <&v_edp_panel>;
401                v_edp_panel: timing0 {
402                      screen-type = <SCREEN_EDP>;
403                      out-face = <OUT_P666>;
404
405                      clock-frequency = <148000000>;
406                      hactive = <1920>;
407                      vactive = <1080>;
408                      hback-porch = <100>;
409                      hfront-porch = <150>;
410                      hsync-len = <30>;
411                      vback-porch = <15>;
412                      vfront-porch = <25>;
413                      vsync-len = <5>;
414                      hsync-active = <0>;
415                      vsync-active = <0>;
416                      de-active = <0>;
417                      pixelclk-active = <0>;
418                };
419       };
420 };

作者: cooper 时间: 2020-4-27 20:00
请问一下大家linux下的双屏方案是怎么实现的呢？

作者: cooper 时间: 2020-4-27 21:25
请问一下大家linux下的双屏方案是怎么实现的呢？

作者: cooper 时间: 2020-4-28 09:31
求助...
并且现在两块屏幕只有一个/dev/fb0设备

作者: cooper 时间: 2020-4-28 13:19
111111111111111111111111

作者: cooper 时间: 2020-5-6 11:12
并且现在两块屏幕只有一个/dev/fb0设备

作者: 落落落落落落落 时间: 2021-7-15 18:08
楼主解决了吗只有一个fb咋异现啊

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