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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2013-03-23 19:32:14 (GMT) |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-03-23 19:32:14 (GMT) |
| commit | df2a8f39cdecdf59be797b9c86b26f90b37321e7 (patch) | |
| tree | a1e4aac4e005e0faf578c96f1cc618ecd55ee6cb /drivers/i2c/busses/i2c-tegra.c | |
| parent | a4e71e7937461730998cef56cc924fe731b4d345 (diff) | |
| parent | 888f2804e46377b54f283707f87c09922ef87eb2 (diff) | |
| download | linux-fsl-qoriq-df2a8f39cdecdf59be797b9c86b26f90b37321e7.tar.xz | |
Merge branch 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c fixes from Wolfram Sang:
"One bugfix for the tegra driver. Two updates regarding email
addresses and MAINTAINERS which I like to have up-to-date so people
can be reached immediately. While we are here, there is on PCI_ID
addition."
* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
MAINTAINERS: add maintainer entry for atmel i2c driver
i2c: Fix my e-mail address in drivers and documentation
i2c: iSMT: add Intel Avoton DeviceIDs
i2c: tegra: check the clk_prepare_enable() return value
Diffstat (limited to 'drivers/i2c/busses/i2c-tegra.c')
| -rw-r--r-- | drivers/i2c/busses/i2c-tegra.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/drivers/i2c/busses/i2c-tegra.c b/drivers/i2c/busses/i2c-tegra.c index 36704e3..b714776 100644 --- a/drivers/i2c/busses/i2c-tegra.c +++ b/drivers/i2c/busses/i2c-tegra.c @@ -411,7 +411,11 @@ static int tegra_i2c_init(struct tegra_i2c_dev *i2c_dev) int clk_multiplier = I2C_CLK_MULTIPLIER_STD_FAST_MODE; u32 clk_divisor; - tegra_i2c_clock_enable(i2c_dev); + err = tegra_i2c_clock_enable(i2c_dev); + if (err < 0) { + dev_err(i2c_dev->dev, "Clock enable failed %d\n", err); + return err; + } tegra_periph_reset_assert(i2c_dev->div_clk); udelay(2); @@ -628,7 +632,12 @@ static int tegra_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msgs[], if (i2c_dev->is_suspended) return -EBUSY; - tegra_i2c_clock_enable(i2c_dev); + ret = tegra_i2c_clock_enable(i2c_dev); + if (ret < 0) { + dev_err(i2c_dev->dev, "Clock enable failed %d\n", ret); + return ret; + } + for (i = 0; i < num; i++) { enum msg_end_type end_type = MSG_END_STOP; if (i < (num - 1)) { |