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楼主 # 2021-12-17 16:31:01

Crystal
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D1s调试lvds，求解？

lvds2link_pins_a 和 lvds2link_pins_b Dual link LVDS 接口管脚定义（主显 lcd0）
这个是手册上给的管脚定义，但是定义中没有这两个。要如何定义

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#1 2021-12-17 16:51:16

哇酷小二
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Re: D1s调试lvds，求解？

lichee/linux-5.4/arch/riscv/boot/dts/sunxi/sun20iw1p1.dtsi

                        lvds0_pins_a: lvds0@0 {
                                pins  = "PD0", "PD1", "PD2", "PD3", "PD4", "PD5", "PD6", "PD7", "PD8", "PD9";
                                function = "lvds0";
                                drive-strength = <30>;
                                bias-disable;
                        };

                        lvds0_pins_b: lvds0@1 {
                                pins  = "PD0", "PD1", "PD2", "PD3", "PD4", "PD5", "PD6", "PD7", "PD8", "PD9";
                                function = "io_disabled";
                                drive-strength = <30>;
                                bias-disable;
                        };




taobao： V3s/F1C100s/F1C200s/D1-H/D1s/T113-S3/XR32/XR829/A523/A133/H133/V831/V851s/V853

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楼主 #2 2021-12-17 16:54:25

Crystal
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Re: D1s调试lvds，求解？

@哇酷小二
这个是signal link的配置，我想用double link

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#3 2021-12-17 17:07:58

哇酷小二
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Re: D1s调试lvds，求解？

                        lcd1_lvds2link_pins_a: lcd1_lvds2link@0 {
                                pins = "PJ10", "PJ11", "PJ12", "PJ13", "PJ14", "PJ15", "PJ16", "PJ17", "PJ18", "PJ19", \
                                "PJ7", "PJ6", "PJ5", "PJ4", "PJ3", "PJ2", "PJ1", "PJ0", "PJ8", "PJ9";
                                function = "lvds3";
                                drive-strength = <30>;
                        };

                        lcd1_lvds2link_pins_b: lcd1_lvds2link@1 {
                                pins = "PJ10", "PJ11", "PJ12", "PJ13", "PJ14", "PJ15", "PJ16", "PJ17", "PJ18", "PJ19", \
                                "PJ7", "PJ6", "PJ5", "PJ4", "PJ3", "PJ2", "PJ1", "PJ0", "PJ8", "PJ9";
                                function = "gpio_in";
                        };

                        lvds2link_pins_a: lvds2link@0 {
                                pins = "PD0", "PD1", "PD2", "PD3", "PD4", "PD5", "PD8", "PD9", "PD6", "PD7", \
                                "PD10", "PD11", "PD12", "PD13", "PD14", "PD15", "PD18", "PD19", "PD16", "PD17";
                                function = "lvds2link";
                                drive-strength = <30>;
                        };
                        lvds2link_pins_b: lvds2link@1 {
                                pins = "PD0", "PD1", "PD2", "PD3", "PD4", "PD5", "PD8", "PD9", "PD6", "PD7", \
                                "PD10", "PD11", "PD12", "PD13", "PD14", "PD15", "PD18", "PD19", "PD16", "PD17";
                                function = "gpio_in";
                        };

别的soc sdk抄来的，将就看看。





taobao： V3s/F1C100s/F1C200s/D1-H/D1s/T113-S3/XR32/XR829/A523/A133/H133/V831/V851s/V853

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#4 2024-05-16 11:55:10

ghosoft
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Re: D1s调试lvds，求解？

Crystal 说：

@哇酷小二
这个是signal link的配置，我想用double link

后来成功了么

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#5 2024-06-27 15:37:22

ghosoft
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Re: D1s调试lvds，求解？

@哇酷小二
function = lvds2link
看起来驱动里边没有定义这个function
导致pd0到pd19全都UNCLAIMED
麻烦看看应该怎么改

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#6 2024-06-27 15:55:11

晕哥
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Re: D1s调试lvds，求解？

找一下哪个文件参与编译 find . -name pinctrl-sun*.o

然后直接那个 .c 文件





taobao： V3s/F1C100s/F1C200s/D1-H/D1s/T113-S3/XR32/XR829/A523/A133/H133/V831/V851s/V853

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#7 2024-06-27 16:05:25

ghosoft
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Re: D1s调试lvds，求解？

晕哥 说：

找一下哪个文件参与编译 find . -name pinctrl-sun*.o

然后直接那个 .c 文件

找到了, 

ao@ubuntu:~/DongshanNezhaSTU-TinaV2.0-SDK/tina-d1-h$ find . -name pinctrl-sun*.o
./lichee/linux-5.4/drivers/pinctrl/sunxi/pinctrl-sun8iw20.o
./lichee/linux-5.4/drivers/pinctrl/sunxi/pinctrl-sunxi.o

这里没有lvds2link, 是不是这个芯片不可以双8

/* PD */
	SUNXI_PIN(SUNXI_PINCTRL_PIN(D, 0),
		SUNXI_FUNCTION(0x0, "gpio_in"),
		SUNXI_FUNCTION(0x1, "gpio_out"),
		SUNXI_FUNCTION(0x2, "lcd0"),		/* D2 */
		SUNXI_FUNCTION(0x3, "lvds0"),		/* V0P */
		SUNXI_FUNCTION(0x4, "dsi"),		/* D0P */
		SUNXI_FUNCTION(0x5, "twi0"),		/* SCK */
		SUNXI_FUNCTION_IRQ_BANK(0xE, 2, 0),
		SUNXI_FUNCTION(0xF, "io_disabled")),
	SUNXI_PIN(SUNXI_PINCTRL_PIN(D, 1),
		SUNXI_FUNCTION(0x0, "gpio_in"),
		SUNXI_FUNCTION(0x1, "gpio_out"),
		SUNXI_FUNCTION(0x2, "lcd0"),		/* D3 */
		SUNXI_FUNCTION(0x3, "lvds0"),		/* V0N */
		SUNXI_FUNCTION(0x4, "dsi"),		/* D0N */
		SUNXI_FUNCTION(0x5, "uart2"),		/* TX */
		SUNXI_FUNCTION_IRQ_BANK(0xE, 2, 1),
		SUNXI_FUNCTION(0xF, "io_disabled")),

最近编辑记录 ghosoft (2024-06-27 16:07:17)

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#8 2024-06-27 16:46:42

晕哥
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注册时间： 2017-09-06
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Re: D1s调试lvds，求解？

参考这个帖子：d1 lvds dual

首先在dts中配置lvds1的gpio，大致是下面这样的

			lvds1_pins_a: lvds1@0 {
				pins  = "PD10", "PD11", "PD12", "PD13", "PD14", "PD15", "PD16", "PD17", "PD18", "PD19";
				function = "lvds1";
				drive-strength = <30>;
				bias-disable;
			};

			lvds1_pins_b: lvds1@1 {
				pins  = "PD10", "PD11", "PD12", "PD13", "PD14", "PD15", "PD16", "PD17", "PD18", "PD19";
				function = "io_disabled";
				drive-strength = <30>;
				bias-disable;
			};

然后在dts中配置dual lvds，主要是lcd_lvds_if与pinctrl-0

&lcd0 {
	lcd_used            = <1>;

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

	lcd_x               = <640>;
	lcd_y               = <2560>;
	lcd_width           = <150>;
	lcd_height          = <94>;
	lcd_dclk_freq       = <117>;

	lcd_pwm_used        = <0>;
	lcd_pwm_ch          = <7>;
	lcd_pwm_freq        = <50000>;
	lcd_pwm_pol         = <1>;
	lcd_pwm_max_limit   = <255>;
 
	lcd_hbp             = <40>;
	lcd_ht              = <720>;
	lcd_hspw            = <20>;
	lcd_vbp             = <20>;
	lcd_vt              = <2600>;
	lcd_vspw            = <10>;
	
	lcd_lvds_if         = <1>;
	lcd_lvds_colordepth = <0>;	
	lcd_lvds_mode       = <0>;
	lcd_frm             = <0>;
	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 = <&lvds0_pins_a &lvds1_pins_a>;
        pinctrl-1 = <&lvds0_pins_b &lvds1_pins_b>;	
  
};

把20条腿都复用为LVDS：
        pinctrl-0 = <&lvds0_pins_a &lvds1_pins_a>;


驱动配置为双8：
    lcd_lvds_if         = <1>;

Linux启动后查看引脚复用状态：

# cat /sys/kernel/debug/pinctrl/pio/pinmux-pins
Pinmux settings per pin
Format: pin (name): mux_owner|gpio_owner (strict) hog?
pin 32 (PB0): device 2502800.twi function gpio_in group PB0
pin 33 (PB1): device 2502800.twi function gpio_in group PB1
pin 34 (PB2): UNCLAIMED
pin 35 (PB3): UNCLAIMED
pin 36 (PB4): UNCLAIMED
pin 37 (PB5): UNCLAIMED
pin 38 (PB6): UNCLAIMED
pin 39 (PB7): UNCLAIMED
pin 40 (PB8): device 2500000.uart function uart0 group PB8
pin 41 (PB9): device 2500000.uart function uart0 group PB9
pin 42 (PB10): GPIO pio:42
pin 43 (PB11): GPIO pio:43
pin 44 (PB12): GPIO pio:44
pin 64 (PC0): device 2008000.ledc function ledc group PC0
pin 65 (PC1): UNCLAIMED
pin 66 (PC2): device 4025000.spi function spi0 group PC2
pin 67 (PC3): device 4025000.spi function spi0 group PC3
pin 68 (PC4): device 4025000.spi function spi0 group PC4
pin 69 (PC5): device 4025000.spi function spi0 group PC5
pin 70 (PC6): device 4025000.spi function spi0 group PC6
pin 71 (PC7): device 4025000.spi function spi0 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 4500000.eth function gmac0 group PE0
pin 129 (PE1): device 4500000.eth function gmac0 group PE1
pin 130 (PE2): device 4500000.eth function gmac0 group PE2
pin 131 (PE3): device 4500000.eth function gmac0 group PE3
pin 132 (PE4): device 4500000.eth function gmac0 group PE4
pin 133 (PE5): device 4500000.eth function gmac0 group PE5
pin 134 (PE6): device 4500000.eth function gmac0 group PE6
pin 135 (PE7): device 4500000.eth function gmac0 group PE7
pin 136 (PE8): device 4500000.eth function gmac0 group PE8
pin 137 (PE9): device 4500000.eth function gmac0 group PE9
pin 138 (PE10): device 4500000.eth function gmac0 group PE10
pin 139 (PE11): device 4500000.eth function gmac0 group PE11
pin 140 (PE12): device 4500000.eth function gmac0 group PE12
pin 141 (PE13): device 4500000.eth function gmac0 group PE13
pin 142 (PE14): device 4500000.eth function gmac0 group PE14
pin 143 (PE15): device 4500000.eth function gmac0 group PE15
pin 144 (PE16): GPIO pio:144
pin 145 (PE17): UNCLAIMED
pin 160 (PF0): device 4020000.sdmmc function sdc0 group PF0
pin 161 (PF1): device 4020000.sdmmc function sdc0 group PF1
pin 162 (PF2): device 4020000.sdmmc function sdc0 group PF2
pin 163 (PF3): device 4020000.sdmmc function sdc0 group PF3
pin 164 (PF4): device 4020000.sdmmc function sdc0 group PF4
pin 165 (PF5): device 4020000.sdmmc function sdc0 group PF5
pin 166 (PF6): GPIO pio:166
pin 192 (PG0): device 4021000.sdmmc function sdc1 group PG0
pin 193 (PG1): device 4021000.sdmmc function sdc1 group PG1
pin 194 (PG2): device 4021000.sdmmc function sdc1 group PG2
pin 195 (PG3): device 4021000.sdmmc function sdc1 group PG3
pin 196 (PG4): device 4021000.sdmmc function sdc1 group PG4
pin 197 (PG5): device 4021000.sdmmc function sdc1 group PG5
pin 198 (PG6): device 2500400.uart function uart1 group PG6
pin 199 (PG7): device 2500400.uart function uart1 group PG7
pin 200 (PG8): device 2500400.uart function uart1 group PG8
pin 201 (PG9): device 2500400.uart function uart1 group PG9
pin 202 (PG10): GPIO pio:202
pin 203 (PG11): device soc@3000000:rfkill@0 function clk_fanout1 group PG11
pin 204 (PG12): GPIO pio:204
pin 205 (PG13): UNCLAIMED
pin 206 (PG14): UNCLAIMED
pin 207 (PG15): GPIO pio:207
pin 208 (PG16): GPIO pio:208
pin 209 (PG17): GPIO pio:209
pin 210 (PG18): GPIO pio:210

如果文件/sys/kernel/debug/pinctrl/pio/pinmux-pins不存在，先执行这个命令：

mount -t debugfs none /sys/kernel/debug;




taobao： V3s/F1C100s/F1C200s/D1-H/D1s/T113-S3/XR32/XR829/A523/A133/H133/V831/V851s/V853

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