linux-kernel - [PATCH] i2c: mediatek: Fix generic definitions for bus frequencies

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Message-ID: <1599890246-21191-1-git-send-email-qii.wang@mediatek.com>
Date:   Sat, 12 Sep 2020 13:57:26 +0800
From:   <qii.wang@...iatek.com>
To:     <wsa@...-dreams.de>
CC:     <linux-i2c@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>,
        <linux-mediatek@...ts.infradead.org>,
        <srv_heupstream@...iatek.com>, <leilk.liu@...iatek.com>,
        <qii.wang@...iatek.com>
Subject: [PATCH] i2c: mediatek: Fix generic definitions for bus frequencies

From: Qii Wang <qii.wang@...iatek.com>

The master code needs to being sent when the speed is more than
I2C_MAX_FAST_MODE_PLUS_FREQ instead of
I2C_MAX_HIGH_SPEED_MODE_FREQ. Fix it.

Signed-off-by: Qii Wang <qii.wang@...iatek.com>
---
 drivers/i2c/busses/i2c-mt65xx.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/i2c/busses/i2c-mt65xx.c b/drivers/i2c/busses/i2c-mt65xx.c
index efc1404..0cbdfbe 100644
--- a/drivers/i2c/busses/i2c-mt65xx.c
+++ b/drivers/i2c/busses/i2c-mt65xx.c
@@ -681,8 +681,8 @@ static int mtk_i2c_calculate_speed(struct mtk_i2c *i2c, unsigned int clk_src,
 	unsigned int cnt_mul;
 	int ret = -EINVAL;
 
-	if (target_speed > I2C_MAX_FAST_MODE_PLUS_FREQ)
-		target_speed = I2C_MAX_FAST_MODE_PLUS_FREQ;
+	if (target_speed > I2C_MAX_HIGH_SPEED_MODE_FREQ)
+		target_speed = I2C_MAX_HIGH_SPEED_MODE_FREQ;
 
 	max_step_cnt = mtk_i2c_max_step_cnt(target_speed);
 	base_step_cnt = max_step_cnt;
@@ -759,7 +759,7 @@ static int mtk_i2c_set_speed(struct mtk_i2c *i2c, unsigned int parent_clk)
 	for (clk_div = 1; clk_div <= max_clk_div; clk_div++) {
 		clk_src = parent_clk / clk_div;
 
-		if (target_speed > I2C_MAX_FAST_MODE_FREQ) {
+		if (target_speed > I2C_MAX_FAST_MODE_PLUS_FREQ) {
 			/* Set master code speed register */
 			ret = mtk_i2c_calculate_speed(i2c, clk_src,
 						      I2C_MAX_FAST_MODE_FREQ,
-- 
1.9.1