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Subject: [media] au0828: tune retry interval for i2c interaction Author: Devin Heitmueller <[email protected]> Date: Mon Aug 6 22:47:06 2012 -0300 Adjust the retry timeout and number of retries to speed up xc5000 firmware download. With this change it goes from 4.2 seconds to 2.9. The net time waited is pretty much the same, but we just poll more often. Tested at 250 KHz as well as 30 KHz. Signed-off-by: Devin Heitmueller <[email protected]> Signed-off-by: Mauro Carvalho Chehab <[email protected]> drivers/media/video/au0828/au0828-i2c.c | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-) --- http://git.linuxtv.org/media_tree.git?a=commitdiff;h=baede40c4daf2157413ae218946d6fe3b3ed1292 diff --git a/drivers/media/video/au0828/au0828-i2c.c b/drivers/media/video/au0828/au0828-i2c.c index d454555..3bc76df 100644 --- a/drivers/media/video/au0828/au0828-i2c.c +++ b/drivers/media/video/au0828/au0828-i2c.c @@ -33,8 +33,8 @@ static int i2c_scan; module_param(i2c_scan, int, 0444); MODULE_PARM_DESC(i2c_scan, "scan i2c bus at insmod time"); -#define I2C_WAIT_DELAY 512 -#define I2C_WAIT_RETRY 64 +#define I2C_WAIT_DELAY 25 +#define I2C_WAIT_RETRY 1000 static inline int i2c_slave_did_write_ack(struct i2c_adapter *i2c_adap) { _______________________________________________ linuxtv-commits mailing list [email protected] http://www.linuxtv.org/cgi-bin/mailman/listinfo/linuxtv-commits
