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    T113S3双路 dual lvds驱动不起来

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    • Q
      quanzhi LV 3 最后由 编辑

      6c891fc3007bea282abb3f9591a8b2b.png

      04e920b493ca75b63f8dc60019d19c5.png

      屏幕参数如下
      8c5f74cc34a737d68df4ca3f4e51b89.jpg

      请问哪里不对呢

      1 条回复 最后回复 回复 引用 分享 0
      • A
        awwwwa LV 7 最后由 编辑

        uboot和dtsi里面添加dual link IO的配置

        demo:

lvds2link_pins_a: lvds2link@0 {
     allwinner,pins = "PD0", "PD1", "PD2", "PD3", "PD4", "PD5", "PD8", "PD9", "PD6", "PD7", \
     "PD10", "PD11", "PD12", "PD13", "PD14", "PD15", "PD18", "PD19", "PD16", "PD17";
     allwinner,pname = "PD0", "PD1", "PD2", "PD3", "PD4", "PD5", "PD8", "PD9", "PD6", "PD7", \
     "PD10", "PD11", "PD12", "PD13", "PD14", "PD15", "PD18", "PD19", "PD16", "PD17";
     allwinner,function = "lvds1";
     allwinner,muxsel = <3>;
     allwinner,drive = <3>;
     allwinner,pull = <0>;
 };

lvds2link_pins_b: lvds2link@1 {
     allwinner,pins = "PD0", "PD1", "PD2", "PD3", "PD4", "PD5", "PD8", "PD9", "PD6", "PD7", \
     "PD10", "PD11", "PD12", "PD13", "PD14", "PD15", "PD18", "PD19", "PD16", "PD17";
     allwinner,pname = "PD0", "PD1", "PD2", "PD3", "PD4", "PD5", "PD8", "PD9", "PD6", "PD7", \
     "PD10", "PD11", "PD12", "PD13", "PD14", "PD15", "PD18", "PD19", "PD16", "PD17";
     allwinner,function = "lvds1_suspend";
     allwinner,muxsel = <7>;
     allwinner,drive = <3>;
     allwinner,pull = <0>;
 };

        dts中 修改为lvds dual link模式，并引用dtsi里配好的dual link IO

        &lcd0{
...
 lcd_lvds_if          = <1>;
...
...
pinctrl-0 = <&lvds2link_pins_a>;
pinctrl-1 = <&lvds2link_pins_b>;
...
}

        其他和single link的配置方法无异，如果点不亮请检查时序

        53899931-a632-431e-ac3a-5826278b35e9-LCDTiming.jpg

        这里看到dclk配置是80

        ac38a30a-5d44-4530-a265-33d443cddda7-image.png

        但是手册需求的是54

        1b0f929a-658a-4d7a-b097-ea05513595e5-image.png

        这里提供一套1920x720的时序作为参考

        &lcd0 {
	lcd_used            = <1>;

	lcd_driver_name     = "default_lcd";
	lcd_backlight       = <50>;
	lcd_if              = <3>;

	lcd_x               = <1920>;
	lcd_y               = <720>;
	lcd_width           = <150>;
	lcd_height          = <94>;
	lcd_dclk_freq       = <94>;

	lcd_pwm_used        = <1>;
	lcd_pwm_ch          = <3>;
	lcd_pwm_freq        = <50000>;
	lcd_pwm_pol         = <1>;
	lcd_pwm_max_limit   = <255>;

	lcd_hbp             = <64>;
	lcd_ht              = <2064>;
	lcd_hspw            = <20>;
	lcd_vbp             = <30>;
	lcd_vt              = <760>;
	lcd_vspw            = <10>;

	lcd_lvds_if         = <1>;
	lcd_lvds_colordepth = <0>;
	lcd_lvds_mode       = <0>;
	lcd_frm             = <1>;
	lcd_hv_clk_phase    = <0>;
	lcd_hv_sync_polarity= <0>;
	lcd_gamma_en        = <0>;
	lcd_bright_curve_en = <0>;
	lcd_cmap_en         = <0>;

	deu_mode            = <0>;
	lcdgamma4iep        = <22>;
	smart_color         = <90>;

	pinctrl-0 = <&lvds2link_pins_a>;
	pinctrl-1 = <&lvds2link_pins_b>;
};
        Q 2 条回复 最后回复 回复 引用 分享 1
        • Q
          quanzhi LV 3 @awwwwa 最后由 编辑

          @awwwwa 在 T113S3双路 dual lvds驱动不起来 中说：

          uboot和dtsi里面添加dual link IO的配置

          demo:

lvds2link_pins_a: lvds2link@0 {
     allwinner,pins = "PD0", "PD1", "PD2", "PD3", "PD4", "PD5", "PD8", "PD9", "PD6", "PD7", \
     "PD10", "PD11", "PD12", "PD13", "PD14", "PD15", "PD18", "PD19", "PD16", "PD17";
     allwinner,pname = "PD0", "PD1", "PD2", "PD3", "PD4", "PD5", "PD8", "PD9", "PD6", "PD7", \
     "PD10", "PD11", "PD12", "PD13", "PD14", "PD15", "PD18", "PD19", "PD16", "PD17";
     allwinner,function = "lvds1";
     allwinner,muxsel = <3>;
     allwinner,drive = <3>;
     allwinner,pull = <0>;
 };

lvds2link_pins_b: lvds2link@1 {
     allwinner,pins = "PD0", "PD1", "PD2", "PD3", "PD4", "PD5", "PD8", "PD9", "PD6", "PD7", \
     "PD10", "PD11", "PD12", "PD13", "PD14", "PD15", "PD18", "PD19", "PD16", "PD17";
     allwinner,pname = "PD0", "PD1", "PD2", "PD3", "PD4", "PD5", "PD8", "PD9", "PD6", "PD7", \
     "PD10", "PD11", "PD12", "PD13", "PD14", "PD15", "PD18", "PD19", "PD16", "PD17";
     allwinner,function = "lvds1_suspend";
     allwinner,muxsel = <7>;
     allwinner,drive = <3>;
     allwinner,pull = <0>;
 };

          dts中 修改为lvds dual link模式，并引用dtsi里配好的dual link IO

          &lcd0{
...
 lcd_lvds_if          = <1>;
...
...
pinctrl-0 = <&lvds2link_pins_a>;
pinctrl-1 = <&lvds2link_pins_b>;
...
}

          其他和single link的配置方法无异，如果点不亮请检查时序

          53899931-a632-431e-ac3a-5826278b35e9-LCDTiming.jpg

          这里看到dclk配置是80

          ac38a30a-5d44-4530-a265-33d443cddda7-image.png

          但是手册需求的是54

          1b0f929a-658a-4d7a-b097-ea05513595e5-image.png

          这里提供一套1920x720的时序作为参考

          &lcd0 {
	lcd_used            = <1>;

	lcd_driver_name     = "default_lcd";
	lcd_backlight       = <50>;
	lcd_if              = <3>;

	lcd_x               = <1920>;
	lcd_y               = <720>;
	lcd_width           = <150>;
	lcd_height          = <94>;
	lcd_dclk_freq       = <94>;

	lcd_pwm_used        = <1>;
	lcd_pwm_ch          = <3>;
	lcd_pwm_freq        = <50000>;
	lcd_pwm_pol         = <1>;
	lcd_pwm_max_limit   = <255>;

	lcd_hbp             = <64>;
	lcd_ht              = <2064>;
	lcd_hspw            = <20>;
	lcd_vbp             = <30>;
	lcd_vt              = <760>;
	lcd_vspw            = <10>;

	lcd_lvds_if         = <1>;
	lcd_lvds_colordepth = <0>;
	lcd_lvds_mode       = <0>;
	lcd_frm             = <1>;
	lcd_hv_clk_phase    = <0>;
	lcd_hv_sync_polarity= <0>;
	lcd_gamma_en        = <0>;
	lcd_bright_curve_en = <0>;
	lcd_cmap_en         = <0>;

	deu_mode            = <0>;
	lcdgamma4iep        = <22>;
	smart_color         = <90>;

	pinctrl-0 = <&lvds2link_pins_a>;
	pinctrl-1 = <&lvds2link_pins_b>;
};

          /只有引用才能添加图片，回复图片报错***/
          @awwwwa 直接在uboot按原有的lvds0节点方式加节点报错Error:arch/arm/dts/board-ubootdts:96.1-18 Label or path lvds2link pins a not foundError:arch/arm/dts/board-ubootdts:107.1-18 Label or path lvds2link pins b not founc
          fc1af99cea31c0fce9601272ce26f66.png

          1 条回复 最后回复 回复 引用 分享 0
          • Q
            quanzhi LV 3 @awwwwa 最后由 编辑

            @awwwwa @awwwwa 直接在uboot按原有的lvds0节点方式加节点报错Error:arch/arm/dts/board-ubootdts:96.1-18 Label or path lvds2link pins a not foundError:arch/arm/dts/board-ubootdts:107.1-18 Label or path lvds2link pins b not founc

            1 条回复 最后回复 回复 引用 分享 0
            • whycan
              whycan晕哥 LV 9 最后由 whycan 编辑

              参考这个帖子：D1s调试lvds，求解？

              Q 1 条回复 最后回复 回复 引用 分享 0
              • Q
                quanzhi LV 3 @whycan 最后由 编辑

                @whycan 已参考，还是点不亮

                lvds0_pins_a: lvds0@0 {
		allwinner,pins  = "PD0", "PD1", "PD2", "PD3", "PD4", "PD5", "PD6", "PD7", "PD8", "PD9";
		allwinner,pname = "PD0", "PD1", "PD2", "PD3", "PD4", "PD5", "PD6", "PD7", "PD8", "PD9";
		allwinner,function = "lvds0";
		allwinner,muxsel = <3>;
		allwinner,drive = <3>;
		allwinner,pull = <0>;
	};

	lvds0_pins_b: lvds0@1 {
		allwinner,pins  = "PD0", "PD1", "PD2", "PD3", "PD4", "PD5", "PD6", "PD7", "PD8", "PD9";
		allwinner,pname = "PD0", "PD1", "PD2", "PD3", "PD4", "PD5", "PD6", "PD7", "PD8", "PD9";
		allwinner,function = "io_disabled";
		allwinner,muxsel = <7>;
		allwinner,drive = <3>;
		allwinner,pull = <0>;
	};
	lvds1_pins_a: lvds1@0 {
		allwinner,pins  = "PD10", "PD11", "PD12", "PD13", "PD14", "PD15", "PD16", "PD17", "PD18", "PD19";
		allwinner,pname = "PD10", "PD11", "PD12", "PD13", "PD14", "PD15", "PD16", "PD17", "PD18", "PD19";
		allwinner,function = "lvds1";
		allwinner,muxsel = <3>;
		allwinner,drive = <3>;
		allwinner,pull = <0>;
	};

	lvds1_pins_b: lvds1@1 {
		allwinner,pins  = "PD10", "PD11", "PD12", "PD13", "PD14", "PD15", "PD16", "PD17", "PD18", "PD19";
		allwinner,pname = "PD10", "PD11", "PD12", "PD13", "PD14", "PD15", "PD16", "PD17", "PD18", "PD19";
		allwinner,function = "io_disabled";
		allwinner,muxsel = <7>;
		allwinner,drive = <3>;
		allwinner,pull = <0>;
	};


                
&lcd0 {
	lcd_used            = <1>;

	lcd_driver_name     = "default_lcd";	/* "bp101wx1"; */
	lcd_if              = <3>;			/* 2:ttl; 3:lvds; 4:dsi */

	lcd_x               = <1280>;
	lcd_y               = <1024>;
	lcd_width           = <338>;
	lcd_height          = <270>;
	lcd_dclk_freq       = <108>;

	lcd_hbp             = <20>;
	lcd_ht              = <1688>;
	lcd_hspw            = <10>;
	lcd_vbp             = <20>;
	lcd_vt              = <1066>;
	lcd_vspw            = <5>;

	lcd_lvds_if         = <1>;
	lcd_lvds_colordepth = <0>;
	lcd_lvds_mode       = <0>;
	lcd_frm             = <1>;
	lcd_hv_clk_phase    = <0>;
	lcd_hv_sync_polarity= <0>;
	lcd_gamma_en        = <0>;
	lcd_bright_curve_en = <0>;
	lcd_cmap_en         = <0>;

	lcd_pwm_used        = <0>;
	lcd_pwm_ch          = <7>;
	lcd_pwm_freq        = <50000>;
	lcd_pwm_pol         = <0>;
	lcd_pwm_max_limit   = <255>;
	lcd_backlight       = <100>;

	deu_mode            = <0>;
	lcdgamma4iep        = <22>;
	smart_color         = <90>;

	pinctrl-0 = <&lvds0_pins_a &lvds1_pins_a>;
	pinctrl-1 = <&lvds0_pins_b &lvds1_pins_b>;
};

                检测PD引脚是全部UNCLAIMED的

                root@embedsky:/# mount -t debugfs none /sys/kernel/debug;
root@embedsky:/# cat /sys/kernel/debug/pinctrl/pio/pinmux-pins
Pinmux settings per pin
Format: pin (name): mux_owner|gpio_owner (strict) hog?
pin 32 (PB0): UNCLAIMED
pin 33 (PB1): device 7040000.s_cir function ir group PB1
pin 34 (PB2): UNCLAIMED
pin 35 (PB3): GPIO pio:35
pin 36 (PB4): UNCLAIMED
pin 37 (PB5): UNCLAIMED
pin 38 (PB6): device 2502c00.twi function gpio_in group PB6
pin 39 (PB7): device 2502c00.twi function gpio_in group PB7
pin 40 (PB8): UNCLAIMED
pin 41 (PB9): UNCLAIMED
pin 42 (PB10): UNCLAIMED
pin 43 (PB11): UNCLAIMED
pin 44 (PB12): UNCLAIMED
pin 64 (PC0): UNCLAIMED
pin 65 (PC1): UNCLAIMED
pin 66 (PC2): device 4022000.sdmmc function sdc2 group PC2
pin 67 (PC3): device 4022000.sdmmc function sdc2 group PC3
pin 68 (PC4): device 4022000.sdmmc function sdc2 group PC4
pin 69 (PC5): device 4022000.sdmmc function sdc2 group PC5
pin 70 (PC6): device 4022000.sdmmc function sdc2 group PC6
pin 71 (PC7): device 4022000.sdmmc function sdc2 group PC7
pin 96 (PD0): UNCLAIMED
pin 97 (PD1): UNCLAIMED
pin 98 (PD2): UNCLAIMED
pin 99 (PD3): UNCLAIMED
pin 100 (PD4): UNCLAIMED
pin 101 (PD5): UNCLAIMED
pin 102 (PD6): UNCLAIMED
pin 103 (PD7): UNCLAIMED
pin 104 (PD8): UNCLAIMED
pin 105 (PD9): UNCLAIMED
pin 106 (PD10): UNCLAIMED
pin 107 (PD11): UNCLAIMED
pin 108 (PD12): UNCLAIMED
pin 109 (PD13): UNCLAIMED
pin 110 (PD14): UNCLAIMED
pin 111 (PD15): UNCLAIMED
pin 112 (PD16): UNCLAIMED
pin 113 (PD17): UNCLAIMED
pin 114 (PD18): UNCLAIMED
pin 115 (PD19): UNCLAIMED
pin 116 (PD20): UNCLAIMED
pin 117 (PD21): UNCLAIMED
pin 118 (PD22): UNCLAIMED
pin 128 (PE0): device 2502400.twi function gpio_in group PE0
pin 129 (PE1): device 2502400.twi function gpio_in group PE1
pin 130 (PE2): device 2500800.uart function uart2 group PE2
pin 131 (PE3): device 2500800.uart function uart2 group PE3
pin 132 (PE4): device 2501000.uart function uart4 group PE4
pin 133 (PE5): device 2501000.uart function uart4 group PE5
pin 134 (PE6): device 2501400.uart function uart5 group PE6
pin 135 (PE7): device 2501400.uart function uart5 group PE7
pin 136 (PE8): device 2500c00.uart function uart3 group PE8
pin 137 (PE9): device 2500c00.uart function uart3 group PE9
pin 138 (PE10): UNCLAIMED
pin 139 (PE11): UNCLAIMED
pin 140 (PE12): UNCLAIMED
pin 141 (PE13): device 3-0024 function irq group PE13
pin 142 (PE14): UNCLAIMED
pin 143 (PE15): UNCLAIMED
pin 144 (PE16): UNCLAIMED
pin 145 (PE17): UNCLAIMED
pin 160 (PF0): device 4020000.sdmmc function gpio_in group PF0
pin 161 (PF1): device 4020000.sdmmc function gpio_in group PF1
pin 162 (PF2): device 4020000.sdmmc function gpio_in group PF2
pin 163 (PF3): device 4020000.sdmmc function gpio_in group PF3
pin 164 (PF4): device 4020000.sdmmc function gpio_in group PF4
pin 165 (PF5): device 4020000.sdmmc function gpio_in group PF5
pin 166 (PF6): GPIO pio:166
pin 192 (PG0): device 4500000.eth function gmac0 group PG0
pin 193 (PG1): device 4500000.eth function gmac0 group PG1
pin 194 (PG2): device 4500000.eth function gmac0 group PG2
pin 195 (PG3): device 4500000.eth function gmac0 group PG3
pin 196 (PG4): device 4500000.eth function gmac0 group PG4
pin 197 (PG5): device 4500000.eth function gmac0 group PG5
pin 198 (PG6): device 4500000.eth function gmac0 group PG6
pin 199 (PG7): device 4500000.eth function gmac0 group PG7
pin 200 (PG8): device 4500000.eth function gmac0 group PG8
pin 201 (PG9): device 4500000.eth function gmac0 group PG9
pin 202 (PG10): device 4500000.eth function gmac0 group PG10
pin 203 (PG11): device 4500000.eth function gmac0 group PG11
pin 204 (PG12): device 4500000.eth function gmac0 group PG12
pin 205 (PG13): device 4500000.eth function gmac0 group PG13
pin 206 (PG14): device 4500000.eth function gmac0 group PG14
pin 207 (PG15): device 4500000.eth function gmac0 group PG15
pin 208 (PG16): UNCLAIMED
pin 209 (PG17): UNCLAIMED
pin 210 (PG18): UNCLAIMED

                执行这个命令看到时钟什么的和手册差不多

                root@embedsky:/# fbset

mode "1280x1024-60"
        # D: 108.003 MHz, H: 63.983 kHz, V: 60.021 Hz
        geometry 1280 1024 1280 2048 32
        timings 9259 10 388 15 22 10 5
        accel false
        rgba 8/16,8/8,8/0,8/24
endmode
                1 条回复 最后回复 回复 引用 分享 0
                • X
                  xinhuak LV 2 最后由 编辑

                  请问一下解决了没?

                  H 1 条回复 最后回复 回复 引用 分享 0
                  • H
                    hameyou LV 4 @xinhuak 最后由 编辑

                    @xinhuak D1s dual lvds 1920*1080 已驱动成功

                    1 条回复 最后回复 回复 引用 分享 0
                    • luohan.zzZ
                      Mortal LV 2 最后由 编辑

                      您好，我这边也正在尝试调通T113S双路LVDS，但是一直给我报错说找不到节点，我在sun8iw20p1-t113-100ask-t113-pro.dts文件中写入了对lvds2link_pins_a引脚和lvds2link_pins_b引脚的配置，但是不行，编译报错，请问您这边是否遇到过这个问题呢？或者是我需要怎么去做呢？

                      1 条回复 最后回复 回复 引用 分享 0
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