Hi Wolfram, > -----Original Message----- > From: Wolfram Sang [mailto:wsa@xxxxxxxxxxxxx] > Sent: Saturday, February 13, 2016 12:08 AM > To: Sricharan R > Cc: devicetree@xxxxxxxxxxxxxxx; linux-arm-msm@xxxxxxxxxxxxxxx; > agross@xxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx; linux- > i2c@xxxxxxxxxxxxxxx; iivanov@xxxxxxxxxx; galak@xxxxxxxxxxxxxx; > dmaengine@xxxxxxxxxxxxxxx; linux-arm-kernel@xxxxxxxxxxxxxxxxxxx; > andy.gross@xxxxxxxxxx; ntelkar@xxxxxxxxxxxxxx; architt@xxxxxxxxxxxxxx > Subject: Re: [PATCH V7 4/6] i2c: qup: Add bam dma capabilities > > On Tue, Jan 19, 2016 at 03:32:44PM +0530, Sricharan R wrote: > > QUP cores can be attached to a BAM module, which acts as a dma engine > > for the QUP core. When DMA with BAM is enabled, the BAM consumer > pipe > > transmitted data is written to the output FIFO and the BAM producer > > pipe received data is read from the input FIFO. > > > > With BAM capabilities, qup-i2c core can transfer more than > > 256 bytes, without a 'stop' which is not possible otherwise. > > > > Signed-off-by: Sricharan R <sricharan@xxxxxxxxxxxxxx> > > Reviewed-by: Andy Gross <andy.gross@xxxxxxxxxx> > > Tested-by: Archit Taneja <architt@xxxxxxxxxxxxxx> > > Tested-by: Telkar Nagender <ntelkar@xxxxxxxxxxxxxx> > > My code checkers found some issues: > > SPARSE > drivers/i2c/busses/i2c-qup.c:555:6: warning: symbol 'qup_sg_set_buf' was > not declared. Should it be static? > drivers/i2c/busses/i2c-qup.c:1243:50: warning: dubious: !x & !y > SMATCH > drivers/i2c/busses/i2c-qup.c:165 qup_sg_set_buf warn: unused return: s = > sg_next() > drivers/i2c/busses/i2c-qup.c:165 qup_sg_set_buf warn: unused return: s = > sg_next() > drivers/i2c/busses/i2c-qup.c:1243 qup_i2c_xfer_v2() warn: add some > parenthesis here? > CPPCHECK > drivers/i2c/busses/i2c-qup.c:1243: style: Boolean result is used in bitwise > operation. Clarify expression with parentheses. > SPATCH > drivers/i2c/busses/i2c-qup.c:1380:2-13: WARNING: Assignment of bool to 0/1 > drivers/i2c/busses/i2c-qup.c:1481:1-13: WARNING: Assignment of bool to 0/1 > CC drivers/i2c/busses/i2c-qup.o > drivers/i2c/busses/i2c-qup.c:555:6: warning: no previous prototype for > 'qup_sg_set_buf' [-Wmissing-prototypes] void qup_sg_set_buf(struct > scatterlist *sg, void *buf, struct qup_i2c_tag *tg, > > Can you fix them and resend?? Sorry on this , will resend this patch. Regards, Sricharan -- To unsubscribe from this list: send the line "unsubscribe dmaengine" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
