From: Wolfram Sang <wsa@the-dreams.de>
To: Sricharan R <sricharan@codeaurora.org>
Cc: devicetree@vger.kernel.org, linux-arm-msm@vger.kernel.org,
agross@codeaurora.org, linux-kernel@vger.kernel.org,
linux-i2c@vger.kernel.org, iivanov@mm-sol.com,
galak@codeaurora.org, dmaengine@vger.kernel.org,
linux-arm-kernel@lists.infradead.org, andy.gross@linaro.org,
ntelkar@codeaurora.org, architt@codeaurora.org
Subject: Re: [PATCH V7 4/6] i2c: qup: Add bam dma capabilities
Date: Fri, 12 Feb 2016 19:37:38 +0100 [thread overview]
Message-ID: <20160212183737.GA1520@katana> (raw)
In-Reply-To: <1453197766-18976-5-git-send-email-sricharan@codeaurora.org>
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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@codeaurora.org>
> Reviewed-by: Andy Gross <andy.gross@linaro.org>
> Tested-by: Archit Taneja <architt@codeaurora.org>
> Tested-by: Telkar Nagender <ntelkar@codeaurora.org>
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??
Thanks,
Wolfram
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next prev parent reply other threads:[~2016-02-12 18:37 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-19 10:02 [PATCH V7 0/6] i2c: qup: Add support for v2 tags and bam dma Sricharan R
2016-01-19 10:02 ` [PATCH V7 1/6] i2c: qup: Change qup_wait_writeready function to use for all timeouts Sricharan R
2016-02-12 18:37 ` Wolfram Sang
2016-01-19 10:02 ` [PATCH V7 2/6] i2c: qup: Add V2 tags support Sricharan R
2016-02-12 18:37 ` Wolfram Sang
2016-01-19 10:02 ` [PATCH V7 3/6] i2c: qup: Transfer each i2c_msg in i2c_msgs without a stop bit Sricharan R
2016-01-24 11:29 ` Wolfram Sang
2016-01-28 4:57 ` Sricharan
2016-02-04 20:09 ` Wolfram Sang
2016-02-05 8:00 ` Sricharan
2016-02-12 18:38 ` Wolfram Sang
2016-01-19 10:02 ` [PATCH V7 4/6] i2c: qup: Add bam dma capabilities Sricharan R
2016-02-12 18:37 ` Wolfram Sang [this message]
2016-02-12 18:42 ` Wolfram Sang
2016-02-13 6:58 ` Sricharan
2016-02-22 12:24 ` Sricharan
2016-02-22 12:32 ` Wolfram Sang
2016-02-22 13:41 ` Sricharan
2016-01-19 10:02 ` [PATCH V7 5/6] dts: msm8974: Add blsp2_bam dma node Sricharan R
2016-03-25 23:17 ` Bjorn Andersson
2016-03-26 2:26 ` Andy Gross
2016-03-28 12:59 ` Sricharan
2016-01-19 10:02 ` [PATCH V7 6/6] dts: msm8974: Add dma channels for blsp2_i2c1 node Sricharan R
2016-01-19 10:14 ` [PATCH V7 0/6] i2c: qup: Add support for v2 tags and bam dma Sricharan
2016-01-24 11:33 ` Wolfram Sang
2016-01-28 5:27 ` Sricharan
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