diff options
| author | li feng <li1.feng@intel.com> | 2015-06-02 18:23:20 -0700 |
|---|---|---|
| committer | ChromeOS Commit Bot <chromeos-commit-bot@chromium.org> | 2015-06-04 20:51:07 +0000 |
| commit | 5b2e673948086bd9a63ffabc96beb98e6409d549 (patch) | |
| tree | 7ff4250a44004e14a250d7ed66c29d48597e944f /include | |
| parent | f64945d8d12a061bc8ce2ba31077c9fc3cac8947 (diff) | |
| download | chrome-ec-5b2e673948086bd9a63ffabc96beb98e6409d549.tar.gz | |
i2c: Retry i2c operation if fails on nack'd(EC_ERROR_BUSY).
Retry count is defined by CONFIG_I2C_NACK_RETRY_COUNT.
BUG=chrome-os-partner:37494
TEST=Tested on Cyan, observed retry happens on nack'd i2c.
BRANCH=None
Signed-off-by: li feng <li1.feng@intel.com>
Change-Id: I73ed15a52335de6c5a5b647660bfe431a8238716
Reviewed-on: https://chromium-review.googlesource.com/274689
Reviewed-by: Shawn N <shawnn@chromium.org>
Commit-Queue: Divya Jyothi <divya.jyothi@intel.com>
Tested-by: Divya Jyothi <divya.jyothi@intel.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/config.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/include/config.h b/include/config.h index b670d748ad..b867a440ab 100644 --- a/include/config.h +++ b/include/config.h @@ -805,6 +805,8 @@ #undef CONFIG_I2C_PASSTHROUGH #undef CONFIG_I2C_PASSTHRU_RESTRICTED +/* Defines I2C operation retry count when slave nack'd(EC_ERROR_BUSY) */ +#define CONFIG_I2C_NACK_RETRY_COUNT 0 /* * I2C SCL gating. * @@ -1381,7 +1383,7 @@ /* Compile chip support for the USB device controller */ #undef CONFIG_USB -/* USB device buffers and descriptors in dedicated RAM */ +/* USB device buffers and descriptors */ #undef CONFIG_USB_RAM_ACCESS_SIZE #undef CONFIG_USB_RAM_ACCESS_TYPE #undef CONFIG_USB_RAM_BASE |