linux-kernel - [PATCH 1/7] i2c-eg20t: Fix bus-idle waiting issue

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Date:	Wed, 21 Sep 2011 16:51:43 +0900
From:	Tomoya MORINAGA <tomoya-linux@....okisemi.com>
To:	Jean Delvare <khali@...ux-fr.org>, Ben Dooks <ben-linux@...ff.org>,
	linux-i2c@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:	Qi Wang <qi.wang@...el.com>, yong.y.wang@...el.com,
	joel.clark@...el.com, kok.howg.ewe@...el.com,
	toshiharu-linux@....okisemi.com,
	Tomoya MORINAGA <tomoya-linux@....okisemi.com>
Subject: [PATCH 1/7] i2c-eg20t: Fix bus-idle waiting issue

Currently, when checking whether bus is idle or not,
if timeout occurs,
this function always returns success(zero).
This patch fixes the issue.

Signed-off-by: Tomoya MORINAGA <tomoya-linux@....okisemi.com>
---
 drivers/i2c/busses/i2c-eg20t.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/i2c/busses/i2c-eg20t.c b/drivers/i2c/busses/i2c-eg20t.c
index 6565009..6add59f 100644
--- a/drivers/i2c/busses/i2c-eg20t.c
+++ b/drivers/i2c/busses/i2c-eg20t.c
@@ -286,7 +286,7 @@ static s32 pch_i2c_wait_for_bus_idle(struct i2c_algo_pch_data *adap,
 
 	pch_dbg(adap, "I2CSR = %x\n", ioread32(p + PCH_I2CSR));
 
-	if (timeout == 0) {
+	if (!ktime_lt(ktime_get(), ns_val)) {
 		pch_err(adap, "%s: Timeout Error.return%d\n", __func__, -ETIME);
 		return -ETIME;
 	}
-- 
1.7.4.4

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