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authorPrzemyslaw Marczak <p.marczak@samsung.com>2015-01-27 13:36:35 +0100
committerSimon Glass <sjg@chromium.org>2015-02-12 10:35:29 -0700
commita3e757a5d295329b504123f0995b35cf694c7613 (patch)
tree434da4f77e1fdddc13e81fb0db27c25619193854
parent26c0472cb07bc23e21fc8148565f7f2be746a8a0 (diff)
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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.c4
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 */