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i2c: bcm2835: Avoid clock stretching timeouts
[ Upstream commit 9495b9b ] The CLKT register contains at poweron 0x40, which at our typical 100kHz bus rate means .64ms. But there is no specified limit to how long devices should be able to stretch the clocks, so just disable the timeout. We still have a timeout wrapping the entire transfer. Signed-off-by: Eric Anholt <eric@anholt.net> Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> BugLink: raspberrypi/linux#3064 Signed-off-by: Wolfram Sang <wsa@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
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