修改led为gpio

hc

2024-10-12 a5969cabbb4660eab42b6ef0412cbbd1200cf14d

 kernel/drivers/i2c/busses/i2c-designware-common.c
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@@ -24,6 +24,7 @@
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 #include <linux/regmap.h>
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 #include <linux/swab.h>
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 #include <linux/types.h>
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+#include <linux/units.h>
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 #include "i2c-designware-core.h"
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@@ -347,7 +348,8 @@
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 		 *
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 		 * If your hardware is free from tHD;STA issue, try this one.
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 		 */
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-		return (ic_clk * tSYMBOL + 500000) / 1000000 - 8 + offset;
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+		return DIV_ROUND_CLOSEST_ULL((u64)ic_clk * tSYMBOL, MICRO) -
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+		       8 + offset;
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 	else
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 		/*
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 		 * Conditional expression:
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@@ -363,8 +365,8 @@
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 		 * The reason why we need to take into account "tf" here,
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 		 * is the same as described in i2c_dw_scl_lcnt().
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 		 */
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-		return (ic_clk * (tSYMBOL + tf) + 500000) / 1000000
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-			- 3 + offset;
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+		return DIV_ROUND_CLOSEST_ULL((u64)ic_clk * (tSYMBOL + tf), MICRO) -
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+		       3 + offset;
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 }
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 u32 i2c_dw_scl_lcnt(u32 ic_clk, u32 tLOW, u32 tf, int offset)
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@@ -380,7 +382,8 @@
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 	 * account the fall time of SCL signal (tf).  Default tf value
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 	 * should be 0.3 us, for safety.
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 	 */
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-	return ((ic_clk * (tLOW + tf) + 500000) / 1000000) - 1 + offset;
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+	return DIV_ROUND_CLOSEST_ULL((u64)ic_clk * (tLOW + tf), MICRO) -
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+	       1 + offset;
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 }
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 int i2c_dw_set_sda_hold(struct dw_i2c_dev *dev)