fix(longan): fix rgb pro & debug uart pro

huangcm

2025-07-03 c26084b3642f262f858535ab4e46c1e9b520d3a1

fix(longan): fix rgb pro & debug uart pro

1. Fix the problem of garbled characters during power-on
2. Add the RGB patch

 longan/brandy/arisc/ar100s/.config.old
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@@ -37,11 +37,7 @@
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 #
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 # debug printk function
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 #
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-CFG_DEBUGGER_PRINTF=y
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-CFG_DEBUG_ERR=y
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-CFG_DEBUG_LOG=y
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-CFG_DEBUG_WRN=y
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-# CFG_DEBUG_INF is not set
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+# CFG_DEBUGGER_PRINTF is not set
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 #
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 # shell function
 longan/brandy/brandy-2.0/u-boot-2018/drivers/video/sunxi/disp2/disp/de/lowlevel_v2x/disp_al.c
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@@ -654,7 +654,7 @@
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 }
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 static struct lcd_clk_info clk_tbl[] = {
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-	{LCD_IF_HV, 6, 1, 1, 0},
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+	{LCD_IF_HV, 0x10, 1, 1, 0},
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 	{LCD_IF_CPU, 12, 1, 1, 0},
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 	{LCD_IF_LVDS, 7, 1, 1, 0},
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 #if defined(DSI_VERSION_40)
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@@ -689,6 +689,7 @@
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 			dsi_div = clk_tbl[i].dsi_div;
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 			dsi_rate = clk_tbl[i].dsi_rate;
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 			find = 1;
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+            printf("kickpi v2x find %d tcon_div = %d lcd_div = %d dsi_div = %d dsi_rate %d \n", i, tcon_div, lcd_div, dsi_div, dsi_rate);
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 			break;
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 		}
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 	}
 longan/kernel/linux-4.9/drivers/video/fbdev/sunxi/disp2/disp/de/disp_lcd.c
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@@ -558,7 +558,7 @@
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 	memset(&clk_info, 0, sizeof(struct lcd_clk_info));
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 	disp_al_lcd_get_clk_info(lcd->hwdev_index, &clk_info,
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 				 &lcdp->panel_info);
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-
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+    printk("kickpi %s:%d \n", __func__, __LINE__);
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 	if (!lcdp->clk || !(&lcdp->panel_info)) {
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 		DE_WRN("NULL clk or panel_info!\n");
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 		goto OUT;
..
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@@ -613,6 +613,7 @@
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 		clk_info.tcon_div = lcdp->panel_info.lcd_tcon_div;
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 	disp_al_lcd_get_clk_info(lcd->hwdev_index, &clk_info,
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 				 &lcdp->panel_info);
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+    printk("kickpi %s:%d \n", __func__, __LINE__);
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 	dclk_rate = lcdp->panel_info.lcd_dclk_freq * 1000000;	/* Mhz -> hz */
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 	if (lcdp->panel_info.lcd_if == LCD_IF_DSI) {
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 		lcd_rate = dclk_rate * clk_info.dsi_div;
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@@ -641,6 +642,7 @@
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 	else
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 		lcd_rate_set = pll_rate_set;
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+    msleep(100);
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 	clk_set_rate(lcdp->clk, lcd_rate_set);
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 	lcd_rate_set = clk_get_rate(lcdp->clk);
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 	if (lcdp->panel_info.lcd_if == LCD_IF_DSI) {
 longan/kernel/linux-4.9/drivers/video/fbdev/sunxi/disp2/disp/de/disp_vdevice.c
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@@ -96,6 +96,7 @@
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 	para->lcd_dclk_freq = dclk_rate;
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 	para->ccir_clk_div = vdevicep->intf.ccir_clk_div;
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 	disp_al_lcd_get_clk_info(vdevice->disp, &clk_info, para);
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+    printk("kickpi %s:%d \n", __func__, __LINE__);
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 	kfree((void *)para);
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 	lcd_rate = dclk_rate * clk_info.tcon_div;
 longan/kernel/linux-4.9/drivers/video/fbdev/sunxi/disp2/disp/de/lowlevel_v2x/disp_al.c
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@@ -694,7 +694,7 @@
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 };
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 #else
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 static struct lcd_clk_info clk_tbl[] = {
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-	{LCD_IF_HV, 6, 1, 1, 0},
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+	{LCD_IF_HV, 0x10, 1, 1, 0},
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 	{LCD_IF_CPU, 12, 1, 1, 0},
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 	{LCD_IF_LVDS, 7, 1, 1, 0},
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 #if defined(DSI_VERSION_40)
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@@ -732,6 +732,7 @@
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 			dsi_div = clk_tbl[i].dsi_div;
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 			dsi_rate = clk_tbl[i].dsi_rate;
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 			find = 1;
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+            printk("kickpi v2x find %d tcon_div = %d lcd_div = %d dsi_div = %d dsi_rate %d \n", i, tcon_div, lcd_div, dsi_div, dsi_rate);
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 			break;
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 		}
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 	}
..
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@@ -827,6 +828,7 @@
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 	tcon_init(screen_id);
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 	disp_al_lcd_get_clk_info(screen_id, &info, panel);
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+    printk("kickpi %s:%d \n", __func__, __LINE__);
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 	tcon0_set_dclk_div(screen_id, info.tcon_div);
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 #if !defined(TCON1_DRIVE_PANEL)
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@@ -1304,6 +1306,7 @@
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 		info.lcd_hv_srgb_seq = para->sequence;
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 	tcon_init(screen_id);
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 	disp_al_lcd_get_clk_info(screen_id, &clk_info, &info);
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+    printk("kickpi %s:%d \n", __func__, __LINE__);
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 	tcon0_set_dclk_div(screen_id, clk_info.tcon_div);
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 	if (para->sub_intf == LCD_HV_IF_CCIR656_2CYC)
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@@ -1602,6 +1605,7 @@
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 		tcon_init(screen_id);
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 		disp_al_lcd_get_clk_info(screen_id, &clk_info, &panel);
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+        printk("kickpi %s:%d \n", __func__, __LINE__);
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 		tcon0_set_dclk_div(screen_id, clk_info.tcon_div);
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 		if (tcon0_cfg(screen_id, &panel) != 0)
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 			DE_WRN("lcd cfg fail!\n");