disable FB

hc

2024-01-04 1543e317f1da31b75942316931e8f491a8920811

 kernel/drivers/phy/rockchip/phy-rockchip-inno-dsidphy.c
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@@ -343,6 +343,9 @@
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 	 * PLL_Output_Frequency: it is equal to DDR-Clock-Frequency * 2
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 	 */
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 	fref = prate / 2;
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+	if (!fref)
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+		return 0;
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+
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 	if (rate > 1000000000UL)
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 		fout = 1000000000UL;
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 	else
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@@ -355,6 +358,9 @@
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 	for (_prediv = min_prediv; _prediv <= max_prediv; _prediv++) {
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 		u64 tmp;
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 		u32 delta;
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+
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+		if (!_prediv)
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+			continue;
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 		tmp = (u64)fout * _prediv;
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 		do_div(tmp, fref);
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@@ -625,7 +631,6 @@
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 	inno_mipi_dphy_reset(inno);
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 	inno_mipi_dphy_timing_init(inno);
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-	inno_mipi_dphy_lane_enable(inno);
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 	inno_mipi_dphy_lane_enable(inno);
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 }
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