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| author | Marek Szyprowski <m.szyprowski@samsung.com> | 2023-11-08 17:43:53 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-01-25 14:34:32 -0800 |
| commit | ea5587946a15ef8df0498aced6f68ddb28f054fc (patch) | |
| tree | 75ec7b97ab531171e6f151084c18b7a449d7c230 /lib | |
| parent | 90734f1cdee848769dc4135deedf9309c00f697e (diff) | |
i2c: s3c24xx: fix transferring more than one message in polling mode
[ Upstream commit 990489e1042c6c5d6bccf56deca68f8dbeed8180 ]
To properly handle ACK on the bus when transferring more than one
message in polling mode, move the polling handling loop from
s3c24xx_i2c_message_start() to s3c24xx_i2c_doxfer(). This way
i2c_s3c_irq_nextbyte() is always executed till the end, properly
acknowledging the IRQ bits and no recursive calls to
i2c_s3c_irq_nextbyte() are made.
While touching this, also fix finishing transfers in polling mode by
using common code path and always waiting for the bus to become idle
and disabled.
Fixes: 117053f77a5a ("i2c: s3c2410: Add polling mode support")
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Andi Shyti <andi.shyti@kernel.org>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'lib')
0 files changed, 0 insertions, 0 deletions