From: Li Yang <leoyang.li@nxp.com>
To: Shawn Guo <shawnguo@kernel.org>,
madalin.bucur@nxp.com, Rob Herring <robh+dt@kernel.org>,
aisheng.dong@nxp.com
Cc: Vinod Koul <vkoul@kernel.org>,
Grant Likely <grant.likely@arm.com>,
lkml <linux-kernel@vger.kernel.org>,
"moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE"
<linux-arm-kernel@lists.infradead.org>
Subject: Re: [PATCH] arm64: defconfig: Enable FSL_EDMA driver
Date: Wed, 12 Jun 2019 15:01:29 -0500 [thread overview]
Message-ID: <CADRPPNT2G20j2pvSEyqX=_WNDPrcNR+xCR_XZukbnSW19wFLNA@mail.gmail.com> (raw)
In-Reply-To: <20190510030525.GC15856@dragon>
On Thu, May 9, 2019 at 10:15 PM Shawn Guo <shawnguo@kernel.org> wrote:
>
> On Mon, Apr 22, 2019 at 01:30:56PM -0500, Li Yang wrote:
> > Enables the FSL EDMA driver by default. This also works around an issue
> > that imx-i2c driver keeps deferring the probe because of the DMA is not
> > ready. And currently the DMA engine framework can not correctly tell
> > if the DMA channels will truly become available later (it will never be
> > available if the DMA driver is not enabled).
> >
> > This will cause indefinite messages like below:
> > [ 3.335829] imx-i2c 2180000.i2c: can't get pinctrl, bus recovery not supported
> > [ 3.344455] ina2xx 0-0040: power monitor ina220 (Rshunt = 1000 uOhm)
> > [ 3.350917] lm90 0-004c: 0-004c supply vcc not found, using dummy regulator
> > [ 3.362089] imx-i2c 2180000.i2c: can't get pinctrl, bus recovery not supported
> > [ 3.370741] ina2xx 0-0040: power monitor ina220 (Rshunt = 1000 uOhm)
> > [ 3.377205] lm90 0-004c: 0-004c supply vcc not found, using dummy regulator
> > [ 3.388455] imx-i2c 2180000.i2c: can't get pinctrl, bus recovery not supported
> > .....
> >
> > Signed-off-by: Li Yang <leoyang.li@nxp.com>
>
> Applied, thanks.
Hi Shawn,
Is it possible to move this patch to the -fix series so that it can
reach the mainline earlier? It is having a boot failure in mainline
for platforms using this device without this workaround.
I see Rob added a new API driver_deferred_probe_check_state() last
year. Probably we should update the imx-i2c driver to use the new API
for optional dependencies to avoid this kind of situation completely?
Regards,
Leo
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next prev parent reply other threads:[~2019-06-12 20:05 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-22 18:30 [PATCH] arm64: defconfig: Enable FSL_EDMA driver Li Yang
2019-05-10 3:05 ` Shawn Guo
2019-06-12 20:01 ` Li Yang [this message]
2019-06-13 0:45 ` Shawn Guo
2019-06-13 14:01 ` Leo Li
2019-06-18 6:31 ` Shawn Guo
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