From: vinod.koul@intel.com (Vinod Koul)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 0/3] ARM: sun8i: Add DMA controller support
Date: Thu, 6 Nov 2014 12:41:23 +0530 [thread overview]
Message-ID: <20141106071123.GV1870@intel.com> (raw)
In-Reply-To: <CAGb2v65ZkBvqSjwR0bVUu0-=5-pOmydp51K6GeMnxOa4vOtCRQ@mail.gmail.com>
On Fri, Sep 26, 2014 at 11:06:01AM +0800, Chen-Yu Tsai wrote:
> On Thu, Sep 18, 2014 at 11:24 AM, Chen-Yu Tsai <wens@csie.org> wrote:
> > Hi everyone,
> >
> > This is v2 of my sun8i DMA controller support series. This series
> > adds support for the DMA controller found in the Allwinner A23 SoC.
> > It is the same hardware as found in the A31 (sun6i) SoC. In addition
> > to reduced physical channels and endpoints, the controller in the A23
> > requires an undocumented register to be toggled. That seems to allow
> > memory bus access.
> >
> > This series is based on my earlier "clk: sun6i: Unify AHB1 clock and
> > fix rate calculation" series, which removes the clock muxing calls from
> > the sun6i-dma driver. The default PLL6 pre-divider for AHB1 on the A23
> > results in an exceedingly high clock rate for AHB1, and the system hangs.
> > Also, on the A23, the dma controller happily works even when AHB1 is
> > clocked from AXI.
> >
> >
> > Patch 1 changes the channel count macros into runtime data binded to
> > the DT compatible strings. It also gets rid of some hardcoded values
> > in the interrupt handler.
> >
> > Patch 2 adds the channel number data for the A23 (sun8i), as well as
> > the undocumented register quirk.
>
> Hi, Vinod,
>
> Any chance we can get patches 1 & 2 merged? You've already merged the
> prerequisite patch "dmaengine: sun6i: Remove obsolete clk muxing code"
> a few days ago, and patch 3 is already in arm-soc.
Hi ChenYu,
The patches look fine to me so I tried applying them but they fail to apply,
can you please rebase these two and resend
Thanks
--
~Vinod
WARNING: multiple messages have this Message-ID (diff)
From: Vinod Koul <vinod.koul-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
To: Chen-Yu Tsai <wens-jdAy2FN1RRM@public.gmane.org>
Cc: Rob Herring <robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
Maxime Ripard
<maxime.ripard-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>,
Dan Williams
<dan.j.williams-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>,
Grant Likely
<grant.likely-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>,
linux-arm-kernel
<linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org>,
linux-sunxi <linux-sunxi-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org>,
dmaengine-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
devicetree <devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>
Subject: Re: [PATCH v2 0/3] ARM: sun8i: Add DMA controller support
Date: Thu, 6 Nov 2014 12:41:23 +0530 [thread overview]
Message-ID: <20141106071123.GV1870@intel.com> (raw)
In-Reply-To: <CAGb2v65ZkBvqSjwR0bVUu0-=5-pOmydp51K6GeMnxOa4vOtCRQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
On Fri, Sep 26, 2014 at 11:06:01AM +0800, Chen-Yu Tsai wrote:
> On Thu, Sep 18, 2014 at 11:24 AM, Chen-Yu Tsai <wens-jdAy2FN1RRM@public.gmane.org> wrote:
> > Hi everyone,
> >
> > This is v2 of my sun8i DMA controller support series. This series
> > adds support for the DMA controller found in the Allwinner A23 SoC.
> > It is the same hardware as found in the A31 (sun6i) SoC. In addition
> > to reduced physical channels and endpoints, the controller in the A23
> > requires an undocumented register to be toggled. That seems to allow
> > memory bus access.
> >
> > This series is based on my earlier "clk: sun6i: Unify AHB1 clock and
> > fix rate calculation" series, which removes the clock muxing calls from
> > the sun6i-dma driver. The default PLL6 pre-divider for AHB1 on the A23
> > results in an exceedingly high clock rate for AHB1, and the system hangs.
> > Also, on the A23, the dma controller happily works even when AHB1 is
> > clocked from AXI.
> >
> >
> > Patch 1 changes the channel count macros into runtime data binded to
> > the DT compatible strings. It also gets rid of some hardcoded values
> > in the interrupt handler.
> >
> > Patch 2 adds the channel number data for the A23 (sun8i), as well as
> > the undocumented register quirk.
>
> Hi, Vinod,
>
> Any chance we can get patches 1 & 2 merged? You've already merged the
> prerequisite patch "dmaengine: sun6i: Remove obsolete clk muxing code"
> a few days ago, and patch 3 is already in arm-soc.
Hi ChenYu,
The patches look fine to me so I tried applying them but they fail to apply,
can you please rebase these two and resend
Thanks
--
~Vinod
--
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next prev parent reply other threads:[~2014-11-06 7:11 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-18 3:24 [PATCH v2 0/3] ARM: sun8i: Add DMA controller support Chen-Yu Tsai
2014-09-18 3:24 ` Chen-Yu Tsai
2014-09-18 3:24 ` [PATCH v2 1/3] dmaengine: sun6i: support parameterized compatible strings Chen-Yu Tsai
2014-09-18 3:24 ` Chen-Yu Tsai
2014-09-18 3:24 ` [PATCH v2 2/3] dmaengine: sun6i: Add support for Allwinner A23 (sun8i) variant Chen-Yu Tsai
2014-09-18 3:24 ` Chen-Yu Tsai
2014-09-20 10:33 ` Maxime Ripard
2014-09-20 10:33 ` Maxime Ripard
2014-09-18 3:24 ` [PATCH v2 3/3] ARM: dts: sun8i: Add DMA controller node Chen-Yu Tsai
2014-09-18 3:24 ` Chen-Yu Tsai
2014-09-20 10:39 ` Maxime Ripard
2014-09-20 10:39 ` Maxime Ripard
2014-09-26 3:06 ` [PATCH v2 0/3] ARM: sun8i: Add DMA controller support Chen-Yu Tsai
2014-09-26 3:06 ` Chen-Yu Tsai
2014-11-06 7:11 ` Vinod Koul [this message]
2014-11-06 7:11 ` Vinod Koul
2014-11-06 7:54 ` Chen-Yu Tsai
2014-11-06 7:54 ` Chen-Yu Tsai
2014-11-06 8:39 ` Vinod Koul
2014-11-06 8:39 ` Vinod Koul
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