请问怎么能让RK3288能有1920*1200P60显示输出

suky8 · 发表于 2015-8-26 15:36:54

本帖最后由 suky8 于 2015-8-26 16:28 编辑

现在需要要输出为1920*1200P60的显示输出，在哪个地方可以调节呢。给个思路，在源码的哪个地方可以调节这个参数。理论4K都能显示，向下应该是没有问题的

suky8 · 发表于 2015-8-26 17:05:14

我刚找到了一个朋友与我有相同的需求，只是他的需求是1366*768
http://developer.t-firefly.com/f ... =%B7%D6%B1%E6%C2%CA

他解决的办法是添加一个配置信息：
我已经解决了这个问题，在lcd-box.dtsi里面添加，       timing1: timing1 {
                              screen-type = <SCREEN_LVDS>;
                              lvds-format = <LVDS_8BIT_2>;
                              out-face = <OUT_D888_P666>;
                              clock-frequency = <85500000>;
                              hactive = <1366>;
                              vactive = <768>;
                              hback-porch = <213>;
                              hfront-porch = <70>;
                              vback-porch = <24>;
                              vfront-porch = <3>;
                              hsync-len = <143>;
                              vsync-len = <3>;
                              hsync-active = <1>;
                              vsync-active = <1>;
                              de-active = <1>;
                              pixelclk-active = <0>;
                              swap-rb = <0>;
                              swap-rg = <0>;
                              swap-gb = <0>;
                           };

问题是我如果添加1920*1200P60需要怎么给参数呢？

我也找到本机的配置信息，如下，

/*
* RockChip. LCD_BOX
*
*/

/ {
     disp_power_ctr: power_ctr {
                  /*                      rockchip,debug = <0>;
                     lcd_en:lcd_en {
                              rockchip,power_type = <GPIO>;
                              gpios = <&gpio0 GPIO_B0 GPIO_ACTIVE_HIGH>;
                              rockchip,delay = <10>;
                     };

                     bl_en:bl_en {
                              rockchip,power_type = <GPIO>;
                              gpios = <&gpio0 GPIO_A2 GPIO_ACTIVE_HIGH>;
                              rockchip,delay = <10>;
                     };

                     bl_ctr:bl_ctr {
                              rockchip,power_type = <GPIO>;
                              gpios = <&gpio3 GPIO_D6 GPIO_ACTIVE_HIGH>;
                              rockchip,delay = <10>;
                     };

                     lcd_rst:lcd_rst {
                              rockchip,power_type = <REGULATOR>;
                              rockchip,delay = <5>;
                     };*/

            };

disp_timings: display-timings {
native-mode = <&timing1>;
timing0: timing0 {
screen-type = <SCREEN_RGB>;
out-face = <OUT_P888>;
clock-frequency = <74250000>;
hactive = <1280>;
vactive = <720>;
hback-porch = <220>;
hfront-porch = <110>;
vback-porch = <20>;
vfront-porch = <5>;
hsync-len = <40>;
vsync-len = <5>;
hsync-active = <1>;
vsync-active = <1>;
de-active = <0>;
pixelclk-active = <0>;
swap-rb = <0>;
swap-rg = <0>;
swap-gb = <0>;
};
timing1: timing1 {
screen-type = <SCREEN_RGB>;
out-face = <OUT_P888>;
clock-frequency = <148500000>;
hactive = <1920>;
vactive = <1080>;
hback-porch = <148>;
hfront-porch = <88>;
vback-porch = <36>;
vfront-porch = <4>;
hsync-len = <44>;
vsync-len = <5>;
hsync-active = <1>;
vsync-active = <1>;
de-active = <0>;
pixelclk-active = <0>;
swap-rb = <0>;
swap-rg = <0>;
swap-gb = <0>;
};
timing2: timing2 {
screen-type = <SCREEN_RGB>;
out-face = <OUT_P888>;
clock-frequency = <297000000>;
hactive = <3840>;
vactive = <2160>;
hback-porch = <296>;
hfront-porch = <176>;
vback-porch = <72>;
vfront-porch = <8>;
hsync-len = <88>;
vsync-len = <10>;
hsync-active = <1>;
vsync-active = <1>;
de-active = <0>;
pixelclk-active = <0>;
swap-rb = <0>;
swap-rg = <0>;
swap-gb = <0>;
};
   };
};

suky8 · 发表于 2015-8-26 17:09:33

我是不是应该加这个参数：
timing3: timing3 {
                              screen-type = <SCREEN_RGB>;
                              out-face = <OUT_P888>;
                              clock-frequency = <？？？？？？>;
                              hactive = <1920>;
                              vactive = <1200>;
                              hback-porch = <???>;
                              hfront-porch = <??>;
                              vback-porch = <??>;
                              vfront-porch = <?>;
                              hsync-len = <??>;
                              vsync-len = <?>;
                              hsync-active = <?>;
                              vsync-active = <?>;
                              de-active = <0>;
                              pixelclk-active = <0>;
                              swap-rb = <0>;
                              swap-rg = <0>;
                              swap-gb = <0>;
                     };

这些参数有什么定义规则？或帮我填一下，谢谢

isle · 发表于 2015-8-27 11:13:17

你是什么版本？输出到什么显示？屏？VGA ？HDMI？

suky8 · 发表于 2015-8-27 11:53:27

isle 发表于 2015-8-27 11:13
你是什么版本？输出到什么显示？屏？VGA ？HDMI？

是4.4.2版本，输出显示为HDMI。

配置信息为：/firefly-rk3288/kernel/arch/arm/boot/dts下的lcd-box.dtsi配置文件

/*
* RockChip. LCD_BOX
*
*/
/ {
disp_power_ctr: power_ctr {
                  /*                      rockchip,debug = <0>;
                     lcd_en:lcd_en {
                              rockchip,power_type = <GPIO>;
                              gpios = <&gpio0 GPIO_B0 GPIO_ACTIVE_HIGH>;
                              rockchip,delay = <10>;
                     };
                     bl_en:bl_en {
                              rockchip,power_type = <GPIO>;
                              gpios = <&gpio0 GPIO_A2 GPIO_ACTIVE_HIGH>;
                              rockchip,delay = <10>;
                     };
                     bl_ctr:bl_ctr {
                              rockchip,power_type = <GPIO>;
                              gpios = <&gpio3 GPIO_D6 GPIO_ACTIVE_HIGH>;
                              rockchip,delay = <10>;
                     };
                     lcd_rst:lcd_rst {
                              rockchip,power_type = <REGULATOR>;
                              rockchip,delay = <5>;
                     };*/
            };
  disp_timings: display-timings {
native-mode = <&timing1>;
timing0: timing0 {
screen-type = <SCREEN_RGB>;
out-face = <OUT_P888>;
clock-frequency = <74250000>;
hactive = <1280>;
vactive = <720>;
hback-porch = <220>;
hfront-porch = <110>;
vback-porch = <20>;
vfront-porch = <5>;
hsync-len = <40>;
vsync-len = <5>;
hsync-active = <1>;
vsync-active = <1>;
de-active = <0>;
pixelclk-active = <0>;
swap-rb = <0>;
swap-rg = <0>;
swap-gb = <0>;
};
timing1: timing1 {
screen-type = <SCREEN_RGB>;
out-face = <OUT_P888>;
clock-frequency = <148500000>;
hactive = <1920>;
vactive = <1080>;
hback-porch = <148>;
hfront-porch = <88>;
vback-porch = <36>;
vfront-porch = <4>;
hsync-len = <44>;
vsync-len = <5>;
hsync-active = <1>;
vsync-active = <1>;
de-active = <0>;
pixelclk-active = <0>;
swap-rb = <0>;
swap-rg = <0>;
swap-gb = <0>;
};
                     timing2: timing2 {
screen-type = <SCREEN_RGB>;
out-face = <OUT_P888>;
clock-frequency = <154000000>;
hactive = <1920>;
vactive = <1200>;
hback-porch = <80>;
hfront-porch = <48>;
vback-porch = <26>;
vfront-porch = <3>;
hsync-len = <32>;
vsync-len = <6>;
hsync-active = <1>;
vsync-active = <1>;
de-active = <0>;
pixelclk-active = <0>;
swap-rb = <0>;
swap-rg = <0>;
swap-gb = <0>;
};
timing3: timing3 {
screen-type = <SCREEN_RGB>;
out-face = <OUT_P888>;
clock-frequency = <297000000>;
hactive = <3840>;
vactive = <2160>;
hback-porch = <296>;
hfront-porch = <176>;
vback-porch = <72>;
vfront-porch = <8>;
hsync-len = <88>;
vsync-len = <10>;
hsync-active = <1>;
vsync-active = <1>;
de-active = <0>;
pixelclk-active = <0>;
swap-rb = <0>;
swap-rg = <0>;
swap-gb = <0>;
};
};
};

以上红色是我加的与修改的地方。
但编译完烧写进去，还是没有1920*1200P60显示项
1、请问这个修改项对吗
2、还要不要改别的地方的配置

请指教

isle · 发表于 2015-8-27 15:12:12

你是说设置里面的HDMI 选项？那个你看下kernel里面的rk_hdmi_lcdc.c 以及上层Setting里面hdmi mode部分。
修改dts里面，只是默认直，并不增加HDMI输出选项

suky8 · 发表于 2015-8-28 10:01:28

isle 发表于 2015-8-27 15:12
你是说设置里面的HDMI 选项？那个你看下kernel里面的rk_hdmi_lcdc.c 以及上层Setting里面hdmi mode部分 ...

请问您说的上层是哪个目录，为什么找不到以及上层Setting里面hdmi mode部分 ...

isle · 发表于 2015-8-28 10:06:02

packages/app/settings

suky8 · 发表于 2015-8-28 10:54:35

isle 发表于 2015-8-28 10:06
packages/app/settings

找到了，但那个值怎么给啊，可否给个决定这样问题的思路，让我们都有个方向。

carlinluo · 发表于 2015-8-28 12:19:34

先把驱动调成功再调上层吧，上层要学过APP的才好改，如果不会添加的，就把一项的字符串给改了。驱动相应的改

请问怎么能让RK3288能有1920*1200P60显示输出

请问怎么能让RK3288能有1920*1200P60显示输出

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