From: Linus Walleij <linus.walleij@linaro.org>
To: Viresh Kumar <viresh.kumar@st.com>
Cc: vinod.koul@intel.com, dan.j.williams@intel.com, cjb@laptop.org,
rmk+kernel@arm.linux.org.uk, ulf.hansson@stericsson.com,
linux-mmc@vger.kernel.org, linux-kernel@vger.kernel.org,
egtvedt@samfundet.no, hskinnemoen@gmail.com,
kernel@pengutronix.de, perex@perex.cz,
linux-arm-kernel@lists.infradead.org, armando.visconti@st.com,
shiraz.hashim@st.com, vipin.kumar@st.com,
rajeev-dlh.kumar@st.com, deepak.sikri@st.com,
vipulkumar.samar@st.com, amit.virdi@st.com,
pratyush.anand@st.com, bhupesh.sharma@st.com,
viresh.linux@gmail.com, bhavna.yadav@st.com,
vincenzo.frascino@st.com, mirko.gardi@st.com
Subject: Re: [PATCH V2 02/12] dmaengine: Add flow controller information to dma_slave_config
Date: Thu, 19 Jan 2012 17:59:54 +0100 [thread overview]
Message-ID: <CACRpkda6-rzCOZkMuagAAxof0FVJMzExnP-QUHtztKM44v=eTw@mail.gmail.com> (raw)
In-Reply-To: <5f9ec59562e86536c4123f61891b95590293030f.1326876464.git.viresh.kumar@st.com>
On Wed, Jan 18, 2012 at 10:11 AM, Viresh Kumar <viresh.kumar@st.com> wrote:
> Flow controller is programmable for few controllers and there are few
> intelligent peripherals like, Synopsys JPEG controller, that needs to be a flow
> controller of DMA transfers on dest side.
>
> For this, currently two drivers, pl08x and dw_dmac, support flow controller to
> be passed from platform to these drivers.
>
> Perhaps, this should be a part of struct dma_slave_config. This patch adds
> another field device_fc to this structure. User drivers must pass this as true
> if they want to be flow controller of certain transfers.
>
> Signed-off-by: Viresh Kumar <viresh.kumar@st.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Thanks Viresh,
Linus Walleij
next prev parent reply other threads:[~2012-01-19 16:59 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-01-18 9:11 [PATCH V2 00/12] dmaengine: Pl08x and dw_dmac updates Viresh Kumar
2012-01-18 9:11 ` [PATCH V2 01/12] dmaengine/dw_dmac: Hibernation support in dw_dmac Viresh Kumar
2012-01-18 9:11 ` [PATCH V2 02/12] dmaengine: Add flow controller information to dma_slave_config Viresh Kumar
2012-01-19 16:59 ` Linus Walleij [this message]
2012-01-31 3:54 ` Vinod Koul
2012-01-18 9:11 ` [PATCH V2 03/12] dmaengine: Pass dma_slave_config .device_fc = NULL for all existing users Viresh Kumar
2012-01-19 17:00 ` Linus Walleij
2012-01-18 9:11 ` [PATCH V2 04/12] dmaengine/amba-pl08x: Take flow controller info from DMA_SLAVE_CONFIG Viresh Kumar
2012-01-19 17:01 ` Linus Walleij
2012-01-18 9:11 ` [PATCH V2 05/12] dmaengine/dw_dmac: Don't use magic number for total number of channels Viresh Kumar
2012-01-18 9:11 ` [PATCH V2 06/12] dmaengine/dw_dmac: Use dev_get_platdata() instead of accessing dev directly Viresh Kumar
2012-01-18 9:11 ` [PATCH V2 07/12] dmaengine/dw_dmac: Don't handle block interrupts Viresh Kumar
2012-01-18 9:11 ` [PATCH V2 08/12] dmaengine/dw_dmac: Unmap all memory buffers after completion of slave transfers Viresh Kumar
2012-01-18 9:36 ` Russell King - ARM Linux
2012-01-18 9:11 ` [PATCH V2 09/12] dmaengine/dw_dmac: Add 64 bit access width support for slave xfers on mem side Viresh Kumar
2012-01-18 9:11 ` [PATCH V2 10/12] dmaengine/dw_dmac: Add support for DMA_SLAVE_CONFIG Viresh Kumar
2012-01-18 9:11 ` [PATCH V2 11/12] dmaengine/dw_dmac: Fix dw_dmac user drivers to adapt to slave_config changes Viresh Kumar
2012-01-18 9:11 ` [PATCH V2 12/12] dmaengine/dw_dmac: Remove unused fields in struct dw_dma_slave Viresh Kumar
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