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hc
2024-01-03 2f7c68cb55ecb7331f2381deb497c27155f32faf 
 kernel/drivers/phy/rockchip/phy-rockchip-inno-dsidphy.c
....@@ -343,6 +343,9 @@
343343 	 * PLL_Output_Frequency: it is equal to DDR-Clock-Frequency * 2
344344 	 */
345345 	fref = prate / 2;
346
+	if (!fref)
347
+		return 0;
348
+
346349 	if (rate > 1000000000UL)
347350 		fout = 1000000000UL;
348351 	else
....@@ -356,6 +359,9 @@
356359 		u64 tmp;
357360 		u32 delta;
358361 
362
+		if (!_prediv)
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+			continue;
364
+
359365 		tmp = (u64)fout * _prediv;
360366 		do_div(tmp, fref);
361367 		_fbdiv = tmp;