Commit Graph

4 Commits

Author SHA1 Message Date
Baolin Wang 2a01046120 i2c: sprd: Fix the i2c count issue
We found the I2C controller count register is unreliable sometimes,
that will cause I2C to lose data. Thus we can read the data count
from 'i2c_dev->count' instead of the I2C controller count register.

Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2018-04-27 14:12:43 +02:00
Baolin Wang da33aa03fa i2c: sprd: Prevent i2c accesses after suspend is called
Add one flag to indicate if the i2c controller has been in suspend state,
which can prevent i2c accesses after i2c controller is suspended following
system suspend.

Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2018-04-27 14:12:17 +02:00
Thomas Meyer a91aee523f i2c: ensure termination of *_device_id tables
Make sure (of/i2c/platform)_device_id tables are NULL terminated.
Found by coccinelle spatch "misc/of_table.cocci"

Signed-off-by: Thomas Meyer <thomas@m3y3r.de>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2017-10-05 14:44:57 +02:00
Baolin Wang 8b9ec07198 i2c: Add Spreadtrum I2C controller driver
This patch adds the I2C controller driver for Spreadtrum SC9860 platform.

Signed-off-by: Baolin Wang <baolin.wang@spreadtrum.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2017-08-29 12:13:35 +02:00