[PATCH v2] i2c-mpc: generate START condition after STOP caused by read i2c_msg
esbenhaabendal at gmail.com
Fri May 29 06:15:22 EST 2009
On Thu, May 28, 2009 at 9:31 PM, Grant Likely <grant.likely at secretlab.ca> wrote:
> On Tue, May 26, 2009 at 5:30 AM, Esben Haabendal wrote:
>> On Tue, May 19, 2009 at 7:22 AM, Esben Haabendal wrote:
>>> This fixes MAL (arbitration lost) bug caused by illegal use of
>>> RSTA (repeated START) after STOP condition generated after last byte
>>> of reads. With this patch, it is possible to do an i2c_transfer() with
>>> additional i2c_msg's following the I2C_M_RD messages.
>>> It still needs to be resolved if it is possible to fix this issue
>>> by removing the STOP condition after reads in a robust way.
>>> Signed-off-by: Esben Haabendal <eha at doredevelopment.dk>
>>> drivers/i2c/busses/i2c-mpc.c | 9 +++++++--
>>> 1 files changed, 7 insertions(+), 2 deletions(-)
>> Any blockers to get this accepted?
> It helps if you cc: developers/maintainers of the device. ie. Kumar
> for mpc8xxx, me for 52xx.
> This is the first time I noticed your posting. It will take me a few
> days before I get a chance to review it.
Kumar, will you take a look at this patch?
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