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| author | Przemyslaw Marczak <p.marczak@samsung.com> | 2015-01-27 13:36:35 +0100 |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2015-02-12 10:35:29 -0700 |
| commit | a3e757a5d295329b504123f0995b35cf694c7613 (patch) | |
| tree | 434da4f77e1fdddc13e81fb0db27c25619193854 | |
| parent | 26c0472cb07bc23e21fc8148565f7f2be746a8a0 (diff) | |
| download | u-boot-imx-a3e757a5d295329b504123f0995b35cf694c7613.zip u-boot-imx-a3e757a5d295329b504123f0995b35cf694c7613.tar.gz u-boot-imx-a3e757a5d295329b504123f0995b35cf694c7613.tar.bz2 | |
i2c: s3c24x0: reduce transmission status timeout
If no device is connected to I2C bus, the i2c probe command
can take a lot of time for probe each address. This commit
reduces the busy timeout to 10ms for standard and high speed
modes. This doesn't break the transmission an also allow for
properly probe the devices.
Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com>
Changes v3:
- new commit, after split the next one
Tested-by: Simon Glass <sjg@chromium.org>
| -rw-r--r-- | drivers/i2c/s3c24x0_i2c.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/i2c/s3c24x0_i2c.c b/drivers/i2c/s3c24x0_i2c.c index 0dd1abc..b4ee33f 100644 --- a/drivers/i2c/s3c24x0_i2c.c +++ b/drivers/i2c/s3c24x0_i2c.c @@ -112,9 +112,9 @@ #define I2C_START_STOP 0x20 /* START / STOP */ #define I2C_TXRX_ENA 0x10 /* I2C Tx/Rx enable */ -#define I2C_TIMEOUT_MS 1000 /* 1 second */ +#define I2C_TIMEOUT_MS 10 /* 10 ms */ -#define HSI2C_TIMEOUT_US 100000 /* 100 ms, finer granularity */ +#define HSI2C_TIMEOUT_US 10000 /* 10 ms, finer granularity */ /* To support VCMA9 boards and other who dont define max_i2c_num */ |