From: Shardar Shariff Md <smohammed-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
To: smohammed-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org,
wsa-z923LK4zBo2bacvFa/9K2g@public.gmane.org,
swarren-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org,
thierry.reding-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org,
gnurou-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org,
linux-i2c-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
jonathanh-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org
Subject: [PATCH 2/5] i2c: tegra: If fifo flush fails return error
Date: Wed, 31 Aug 2016 18:52:35 +0530 [thread overview]
Message-ID: <1472649758-5608-2-git-send-email-smohammed@nvidia.com> (raw)
In-Reply-To: <1472649758-5608-1-git-send-email-smohammed-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
During i2c controller initialization, when fifo flush fails return error
instead of returning the error during exit.
Signed-off-by: Shardar Shariff Md <smohammed-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
---
Changes in v11:
- Fix smatch error for below warning
tegra_i2c_init warn: unused return: err = tegra_i2c_flush_fifos()
---
---
drivers/i2c/busses/i2c-tegra.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/i2c/busses/i2c-tegra.c b/drivers/i2c/busses/i2c-tegra.c
index e93c72a..07a39b7 100644
--- a/drivers/i2c/busses/i2c-tegra.c
+++ b/drivers/i2c/busses/i2c-tegra.c
@@ -494,6 +494,8 @@ static int tegra_i2c_init(struct tegra_i2c_dev *i2c_dev)
i2c_writel(i2c_dev, val, I2C_FIFO_CONTROL);
err = tegra_i2c_flush_fifos(i2c_dev);
+ if (err)
+ goto err;
if (i2c_dev->is_multimaster_mode && i2c_dev->hw->has_slcg_override_reg)
i2c_writel(i2c_dev, I2C_MST_CORE_CLKEN_OVR, I2C_CLKEN_OVERRIDE);
--
1.8.1.5
next prev parent reply other threads:[~2016-08-31 13:22 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-08-31 13:22 [PATCH 1/5] i2c: tegra: use readl_poll_timeout after config_load reg programmed Shardar Shariff Md
[not found] ` <1472649758-5608-1-git-send-email-smohammed-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2016-08-31 13:22 ` Shardar Shariff Md [this message]
2016-08-31 13:30 ` Shardar Mohammed
2016-08-31 13:22 ` [PATCH 3/5] i2c: tegra: add separate function for config_load programing Shardar Shariff Md
2016-08-31 13:22 ` [PATCH 4/5] i2c: tegra: use atomic poll function during configuration Shardar Shariff Md
2016-08-31 13:22 ` [PATCH 5/5] i2c: tegra: proper handling of error cases Shardar Shariff Md
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