| commit | 43309f3b521302bb66c4c9e66704dd3675e4d725 | |
| author | Richard Zhao <linuxzsc@gmail.com> | |
| Sat, 17 Oct 2009 09:46:22 +0000 (17 17:46 +0800) | ||
| committer | Ben Dooks <ben-linux@fluff.org> | |
| Mon, 2 Nov 2009 23:28:46 +0000 (2 23:28 +0000) | ||
| tree | 4f2e927b301a9b89d6fb35e524c90b37331129b2 | treesnapshot (tar.gz zip) |
| parent | 1836d95928a0f41ada0cbb2a6c4e46b027db9491 | commitdiff |
i2c: imx: check busy bit when START/STOP
The controller can't do anything else before it actually generates START/STOP.
So we check busy bit to make sure START/STOP is successfully finished.
If we don't check busy bit, START/STOP may fail on some fast CPUs.
Signed-off-by: Richard Zhao <linuxzsc@gmail.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
The controller can't do anything else before it actually generates START/STOP.
So we check busy bit to make sure START/STOP is successfully finished.
If we don't check busy bit, START/STOP may fail on some fast CPUs.
Signed-off-by: Richard Zhao <linuxzsc@gmail.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
| drivers/i2c/busses/i2c-imx.c | diffblobblamehistory |