From: Alexey Brodkin Date: Thu, 7 Nov 2013 13:52:33 +0000 (+0400) Subject: designware_i2c: remove 10msec delay in i2c_xfer_finish X-Git-Tag: v2014.01-rc1~57 X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=f9de54e9b09b4836fb3cda9d98a6dfba367b9734;p=oweals%2Fu-boot.git designware_i2c: remove 10msec delay in i2c_xfer_finish This delay applies to any data transfer on I2C bus. For example 1kB data read with per-byte access (which happens if environment is stored in I2C EEPROM) takes more than 10 seconds. Moreover data bus driver has to care about bus state and data transfer, but not about internal states of attached devices. Signed-off-by: Alexey Brodkin Cc: Tom Rini cc: Armando Visconti Cc: Stefan Roese Cc: Albert ARIBAUD Cc: Heiko Schocher Cc: Vipin KUMAR Cc: Tom Rix Cc: Mischa Jonker --- diff --git a/drivers/i2c/designware_i2c.c b/drivers/i2c/designware_i2c.c index c5c6015e99..cb2ac04b60 100644 --- a/drivers/i2c/designware_i2c.c +++ b/drivers/i2c/designware_i2c.c @@ -249,9 +249,6 @@ static int i2c_xfer_finish(void) i2c_flush_rxfifo(); - /* Wait for read/write operation to complete on actual memory */ - udelay(10000); - return 0; }