From a5969cabbb4660eab42b6ef0412cbbd1200cf14d Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Sat, 12 Oct 2024 07:10:09 +0000
Subject: [PATCH] 修改led为gpio

---
 kernel/drivers/i2c/busses/i2c-designware-common.c |   11 +++++++----
 1 files changed, 7 insertions(+), 4 deletions(-)

diff --git a/kernel/drivers/i2c/busses/i2c-designware-common.c b/kernel/drivers/i2c/busses/i2c-designware-common.c
index 9468c6c..682fffa 100644
--- a/kernel/drivers/i2c/busses/i2c-designware-common.c
+++ b/kernel/drivers/i2c/busses/i2c-designware-common.c
@@ -24,6 +24,7 @@
 #include <linux/regmap.h>
 #include <linux/swab.h>
 #include <linux/types.h>
+#include <linux/units.h>
 
 #include "i2c-designware-core.h"
 
@@ -347,7 +348,8 @@
 		 *
 		 * If your hardware is free from tHD;STA issue, try this one.
 		 */
-		return (ic_clk * tSYMBOL + 500000) / 1000000 - 8 + offset;
+		return DIV_ROUND_CLOSEST_ULL((u64)ic_clk * tSYMBOL, MICRO) -
+		       8 + offset;
 	else
 		/*
 		 * Conditional expression:
@@ -363,8 +365,8 @@
 		 * The reason why we need to take into account "tf" here,
 		 * is the same as described in i2c_dw_scl_lcnt().
 		 */
-		return (ic_clk * (tSYMBOL + tf) + 500000) / 1000000
-			- 3 + offset;
+		return DIV_ROUND_CLOSEST_ULL((u64)ic_clk * (tSYMBOL + tf), MICRO) -
+		       3 + offset;
 }
 
 u32 i2c_dw_scl_lcnt(u32 ic_clk, u32 tLOW, u32 tf, int offset)
@@ -380,7 +382,8 @@
 	 * account the fall time of SCL signal (tf).  Default tf value
 	 * should be 0.3 us, for safety.
 	 */
-	return ((ic_clk * (tLOW + tf) + 500000) / 1000000) - 1 + offset;
+	return DIV_ROUND_CLOSEST_ULL((u64)ic_clk * (tLOW + tf), MICRO) -
+	       1 + offset;
 }
 
 int i2c_dw_set_sda_hold(struct dw_i2c_dev *dev)

--
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