V853S mipi LCD显示驱动调试，colorbar显示异常

[steven73]

V853S调试mipi显示驱动时，colorbar输出如下图，顺序有点乱；有大佬知道这是哪块的问题么(驱动，dts)，看论坛里大家说是驱动初始化配置的问题，不知大佬能否提供调试思路。
1、echo 2 > /sys/class/disp/disp/attr/colorbar

2、echo 1 > /sys/class/disp/disp/attr/colorbar

3、echo 7 > /sys/class/disp/disp/attr/colorbar

[awwwwa]

dclk过高，屏幕分屏了？
这里提供一个py脚本计算分频系数，这里对应的是HV屏，DSI也可以参考

def find_closest_clock(target_clock, clock_list):
    clock_list = sorted(clock_list)
    low, high = 0, len(clock_list) - 1
    closest = clock_list[low]
    while low <= high:
        mid = (low + high) // 2
        if clock_list[mid] < target_clock:
            low = mid + 1
        elif clock_list[mid] > target_clock:
            high = mid - 1
        else:
            return clock_list[mid]
        if abs(clock_list[mid] - target_clock) < abs(closest - target_clock):
            closest = clock_list[mid]

    return closest

def calculate_divisor(clock_need, clock_list, min_divisor=6):
    is_perfect = True
    for i in clock_list:
        for j in range(0, 255):
            if (clock_need * j) == i:
                closest_clock = i
                divisor = j
                return closest_clock, divisor, is_perfect

    is_perfect = False

    closest_clock = find_closest_clock(clock_need, clock_list)
    
    if closest_clock == 0:
        return None, None, None
    
    divisor = closest_clock // clock_need
    if divisor < min_divisor:
        min_diff = float('inf')
        best_clock = None
        for clock in clock_list:
            if clock >= clock_need * min_divisor:
                current_divisor = clock // clock_need
                if current_divisor < min_divisor:
                    continue
                diff = abs(clock - clock_need * current_divisor)
                if diff < min_diff:
                    min_diff = diff
                    best_clock = clock
        if best_clock is not None:
            return best_clock, best_clock // clock_need, is_perfect
    
    return closest_clock, divisor, is_perfect

clock_list = [
    408, 420, 432, 444, 456, 468, 480, 492, 504, 516, 528, 540, 552, 564,
    576, 588, 600, 612, 624, 636, 648, 660, 672, 684, 696, 708, 720, 732,
    744, 756, 768, 780, 792, 804, 816, 828, 840, 852, 864, 876, 888, 900,
    912, 924, 936, 948, 960, 972, 984, 996, 1008, 1020, 1032, 1044, 1056,
    1068, 1080, 1092, 1104, 1116, 1128, 1140, 1152, 1164, 1176, 1188, 1200,
    1212, 1224, 1236, 1248, 1260, 1272, 1284, 1296, 1308, 1320, 1332, 1344,
    1356, 1368, 1380, 1392, 1404, 1416, 1428, 1440, 1452, 1464, 1476, 1488,
    1500, 1512, 1524, 1536, 1548, 1560, 1572, 1584, 1596, 1608, 1620, 1632,
    1644, 1656, 1668, 1680, 1692
]


clock_need = int(input("请输入需要的时钟(MHz): "))
closest_clock, divisor, is_perfect = calculate_divisor(clock_need, clock_list)
if is_perfect:
    print(f"父时钟: {closest_clock}MHz, 分频系数: {divisor}, 分频后的频率: {closest_clock / divisor}MHz")
else:
    print(f"无法找到完美，最近的父时钟: {closest_clock}, 分频系数: {divisor}, 分频后的频率: {closest_clock / divisor}MHz")
print("请修改分频系数表 clk_tbl 中 HV 分频系数为: {LCD_IF_HV, " + hex(divisor) + ", 1, 1, 0}")